For New Technology Network
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corporation
Ball and Roller Bearings
CAT. NO.
2202-&/E
Technical Data
A-
5
Deep Groove Ball Bearings
B-
5
Miniature and Extra Small Bearings
B- 31
Angular Contact Ball Bearings
B- 43
Self-Aligning Ball Bearings
B- 79
Cylindrical Roller Bearings
B- 91
Tapered Roller Bearings
B-133
Spherical Roller Bearings
B-233
Thrust Bearings
B-269
Locknuts, Lockwashers & Lockplates
C-
1
Catalog List & Appendix Table
D-
1
Warranty
NTN warrants, to the original purchaser only, that the delivered product which is the subject of this sale (a)
will conform to drawings and specifications mutually established in writing as applicable to the contract, and (b)
be free from defects in material or fabrication. The duration of this warranty is one year from date of delivery.
If the buyer discovers within this period a failure of the product to conform to drawings or specifications, or a
defect in material or fabrication, it must promptly notify NTN in writing. In no event shall such notification be
received by NTN later than 13 months from the date of delivery. Within a reasonable time after such
notification, NTN will, at its option, (a) correct any failure of the product to conform to drawings, specifications
or any defect in material or workmanship, with either replacement or repair of the product, or (b) refund, in part
or in whole, the purchase price. Such replacement and repair, excluding charges for labor, is at NTN's
expense. All warranty service will be performed at service centers designated by NTN. These remedies are
the purchaser's exclusive remedies for breach of warranty.
NTN does not warrant (a) any product, components or parts not manufactured by NTN, (b) defects caused
by failure to provide a suitable installation environment for the product, (c) damage caused by use of the
product for purposes other than those for which it was designed, (d) damage caused by disasters such as fire,
flood, wind, and lightning, (e) damage caused by unauthorized attachments or modification, (f) damage during
shipment, or (g) any other abuse or misuse by the purchaser.
THE FOREGOING WARRANTIES ARE IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED,
INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE.
In no case shall NTN be liable for any special, incidental, or consequential damages based upon breach of
warranty, breach of contract, negligence, strict tort, or any other legal theory,and in no case shall total liability
of NTN exceed the purchase price of the part upon which such liability is based. Such damages include, but
are not limited to, loss of profits, loss of savings or revenue, loss of use of the product or any associated
equipment, cost of capital, cost of any substitute equipment, facilities or services, downtime, the claims of third
parties including customers, and injury to property. Some states do not allow limits on warranties, or on
remedies for breach in certain transactions. In such states, the limits in this paragraph and in paragraph (2)
shall apply to the extent allowable under case law and statutes in such states.
Any action for breach of warranty or any other legal theory must be commenced within 15 months following
delivery of the goods.
Unless modified in a writing signed by both parties, this agreement is understood to be the complete and
exclusive agreement between the parties, superceding all prior agreements, oral or written, and all other
communications between the parties relating to the subject matter of this agreement. No employee of NTN or
any other party is authorized to make any warranty in addition to those made in this agreement.
This agreement allocates the risks of product failure between NTN and the purchaser. This allocation is
recognized by both parties and is reflected in the price of the goods. The purchaser acknowledges that it has
read this agreement, understands it, and is bound by its terms.
© NTN Corporation. 2002
Although care has been taken to assure the accuracy of the data compiled in this catalog, NTN does not
assume any liability to any company or person for errors or omissions.
Ball and Roller Bearings
CAD data of model numbers given in the catalog is available as an electronic catalog. For information, please contact NTN Engineering.
TECHNICAL DATA CONTENTS
1. Classification and Characteristics
of Rolling Bearings ……………………A-5
5. Boundary Dimensions and
Bearing Number Codes ……………A-30
1.1 Rolling bearing construction ………………A-5
5.1 Boundary dimensions ……………………A-30
1.2 Classification of rolling bearings …………A-5
5.2 Bearing numbers …………………………A-31
1.3 Characteristics of rolling bearings ………A-8
6. Bearing Tolerances …………………A-35
2. Bearing Selection ……………………A-12
6.1 Dimensional accuracy and
running accuracy …………………………A-35
2.1 Bearing selection flow chart ……………A-12
6.2 Chamfer measurements and tolerance
or allowable values of tapered bore ……A-46
2.2 Type and characteristics …………………A-14
2.3 Selection of bearing arrangement ………A-15
6.3 Bearing tolerance measurement
methods ……………………………………A-48
3. Load Rating and Life ………………A-17
3.1 Bearing life…………………………………A-17
7. Bearing Fits ……………………………A-49
3.2 Basic rating life and basic dynamic
load rating …………………………………A-17
7.1 Fitting ………………………………………A-49
7.2 The necessity of a proper fit ……………A-49
3.3 Adjusted rating life ………………………A-18
7.3 Fit selection ………………………………A-49
3.4 Machine applications and requisite life …A-19
3.5 Basic static load rating……………………A-19
3.6 Allowable static equivalent load …………A-20
8. Bearing Internal Clearance
and Preload ……………………………A-58
8.1 Bearing internal clearance ………………A-58
4. Bearing Load Calculation …………A-21
8.2 Internal clearance selection ……………A-58
4.1 Loads acting on shafts……………………A-21
8.3 Preload ……………………………………A-66
4.2 Bearing load distribution …………………A-23
4.3 Mean load …………………………………A-24
4.4 Equivalent load ……………………………A-25
9. Allowable Speed ………………………A-70
4.5 Bearing rating life and
load calculation examples ………………A-27
A-2
14.3 Shaft and housing accuracy ……………A-87
10. Friction and
Temperature Rise……………………A-71
14.4 Allowable bearing misalignment ………A-87
10.1 Friction ……………………………………A-71
10.2 Temperature rise…………………………A-71
15. Bearing Handling ……………………A-88
15.1 Bearing storage …………………………A-88
11. Lubrication ……………………………A-72
15.2 Installation ………………………………A-88
11.1 Purpose of lubrication …………………A-72
15.3 Internal clearance adjustment …………A-90
11.2 Lubrication methods and
characteristics ……………………………A-72
15.4 Post installation running test……………A-92
15.5 Bearing disassembly ……………………A-92
11.3 Grease lubrication ………………………A-72
15.6 Bearing maintenance and inspection …A-94
11.4 Solid grease
(For bearings with solid grease) ………A-76
11.5 Oil lubrication ……………………………A-77
16. Bearing Damage and
Corrective Measures ………………A-96
12. External bearing
sealing devices ………………………A-80
17. Technical data ………………………A-100
13. Bearing Materials ……………………A-83
17.1 Deep groove ball bearing radial internal
clearances and axial internal clearances
……………………………………………A-100
13.1 Raceway and
rolling element materials ………………A-83
17.2 Angular contact ball bearing axial load and
axial displacement ……………………A-100
13.2 Cage materials……………………………A-83
17.3 Tapered roller bearing axial load and
axial displacement ……………………A-102
17.4 Allowable axial load for ball bearings A-102
17.5 Fitting surface pressure ………………A-103
14. Shaft and Housing Design………A-85
17.6 Necessary press fit and pullout force A-104
14.1 Fixing of bearings ………………………A-85
14.2 Bearing fitting dimensions………………A-86
A-3
●Classification and Characteristics of Rolling Bearings
1. Classification and Characteristics of Rolling Bearings
1.1 Rolling bearing construction
Most rolling bearings consist of rings with raceway
(inner ring and outer ring), rolling elements (either balls or
rollers) and cage. The cage separates the rolling
elements at regular intervals, holds them in place within
the inner and outer raceways, and allows them to rotate
freely.
Outer ring
Outer
ring
Inner ring
Inner
ring
Cage
Ball
1)
Raceway (inner ring and outer ring) or raceway disc
The surface on which rolling elements roll is called the
"raceway surface". The load placed on the bearing is
supported by this contact surface.
Generally the inner ring fits on the axle or shaft and the
outer ring on the housing.
Deep groove ball bearing
Fig A
Ball
Cage
Angular contact ball bearing
Fig.B
Note 1: The raceway of thrust bearing is called "raceway disc," the
inner ring is called the "shaft raceway disc" and the outer
ring is called the "housing raceway disc."
Rolling elements
Rolling elements classify in two types: balls and rollers.
Rollers come in four types: cylindrical, needle, tapered,
and spherical.
Balls geometrically contact with the raceway surfaces of
the inner and outer rings at "points", while the contact
surface of rollers is a "line" contact.
Theoretically, rolling bearings are so constructed as to
allow the rolling elements to rotate orbitally while also
rotating on their own axes at the same time.
Outer ring
Outer ring
Inner ring
Roller
Cage
Cage
Roller
Cylindrical roller bearing
Fig. C
Cages
Cages function to maintain rolling elements at a uniform
pitch so load is never applied directly to the cage and to
prevent the rolling elements from falling out when
handling the bearing. Types of cages differ according to
way they are manufactured, and include pressed,
machined and formed cages.
Needle roller bearing
Fig. D
Outer
ring
Outer ring
Roller
Inner
ring
Cage
1.2 Classification of rolling bearings
Roller
Cage
Inner ring
Rolling bearings divide into two main classifications: ball
bearings and roller bearings. Ball bearings are classified
according to their bearing ring configurations: deep
groove type and angular contact type. Roller bearings on
the other hand are classified according to the shape of
the rollers: cylindrical, needle, tapered and spherical.
Tapered roller bearing
Fig. E
Rolling bearings can be further classified according to
the direction in which the load is applied; radial bearings
carry radial loads and thrust bearings carry axial loads.
Shaft raceway disc
Spherical roller bearing
Fig. F
Shaft raceway disc
Roller
Ball
Other classification methods include: 1) number of
rolling rows (single, double, or 4-row), 2) separable and
non-separable, in which either the inner ring or the outer
ring can be detached.
Cage
There are also bearings designed for special
applications, such as: railway car journal roller bearings,
ball screw support bearings, turntable bearings, as well
as linear motion bearings (linear ball bearings, linear
roller bearings and linear flat roller bearings).Types of
rolling bearings are given in Fig. 1.2.
Cage
Housing raceway disc
Housing raceway disc
Thrust ball bearing
Fig. G
Thrust roller bearing
Fig. H
Fig. 1.1 Rolling bearing
A-5
●Classification and Characteristics of Rolling Bearings
Single row deep groove ball bearings
Single row angular contact ball bearings
Duplex angular contact ball bearings
Radial ball
bearings
Four-point contact ball bearings
Double row angular contact ball bearings
Self-aligning ball bearings
Ball bearings
Ball bearings for rolling bearing unit*
Single direction thrust ball bearings
Double direction angular contact
thrust ball bearings
Thrust ball
bearings
High-speed duplex angular contact
ball bearings (for axial loads)
Rolling
bearings
Single row cylindrical roller bearings
Double row cylindrical roller bearings
Radial roller
bearings
Needle roller bearings*
Single row tapered roller bearings
Double row tapered roller bearings
Spherical roller bearings
Roller bearings
Cylindrical roller thrust bearings*
Needle roller thrust bearings*
Thrust roller
bearings
Tapered roller thrust bearings*
Spherical roller thrust bearings
Fig. 1.2 Classification of rolling bearings
A-6
●Classification and Characteristics of Rolling Bearings
Ultra thin wall type ball bearings*
Turntable bearings*
Ball screw support bearings*
Railway car journal roller bearings*
Ultra-clean vacuum bearings*
SL-type cylindrical roller bearings*
Special
application
bearings
Rubber molded bearings*
Clearance adjusting needle roller
bearings*
Complex bearings*
Connecting rod needle roller
bearings with cage*
Roller followers*
Cam followers*
Linear ball bearings*
Linear
motion
bearings
Linear roller bearings*
Linear flat roller bearings*
Note: Bearings marked with an asterisk are not contained in this catalog.
For details, see the catalog devoted to the concerned type of bearing.
A-7
●Classification and Characteristics of Rolling Bearings
1.3.3 Radial and thrust bearings
Almost all types of rolling bearings can carry both radial
and axial loads at the same time.
Generally, bearings with a contact angle of less than
45°have a much greater radial load capacity and are
classed as radial bearings; whereas bearings which have
a contact angle over 45°have a greater axial load
capacity and are classed as thrust bearings. There are
also bearings classed as complex bearings which
combine the loading characteristics of both radial and
thrust bearings.
1.3 Characteristics of rolling bearings
1.3.1 Characteristics of rolling bearings
Rolling bearings come in many shapes and varieties,
each with its own distinctive features.
However, when compared with sliding bearings, rolling
bearings all have the following advantages:
(1) The starting friction coefficient is lower and there is
little difference between this and the dynamic
friction coefficient.
(2) They are internationally standardized, interchangeable
and readily obtainable.
(3) They are easy to lubricate and consume less
lubricant.
(4) As a general rule, one bearing can carry both radial
and axial loads at the same time.
(5) May be used in either high or low temperature
applications.
(6) Bearing rigidity can be improved by preloading.
1.3.4 Standard bearings and special bearings
The boundary dimensions and shapes of bearings
conforming to international standards are interchangeable
and can be obtained easily and economically over the
world over. It is therefore better to design mechanical
equipment to use standard bearings.
However, depending on the type of machine they are to
be used in, and the expected application and function, a
non-standard or specially designed bearing may be best
to use. Bearings that are adapted to specific applications,
and "unit bearings" which are integrated (built-in) into a
machine's components, and other specially designed
bearings are also available.
The feature of typical standard bearings are as follows:
Construction, classes, and special features of rolling
bearings are fully described in the boundary dimensions
and bearing numbering system section.
1.3.2 Ball bearings and roller bearings
Table 1.1 gives a comparison of ball bearings and roller
bearings.
Table 1.1 Comparison of ball bearings and roller bearings
The most common type of bearing, deep groove ball
bearings are widely used in a variety of fields. Deep
groove ball bearings include shield bearings and sealed
bearings with grease make them easier to use.
Deep groove ball bearings also include bearings with a
locating snap-ring to facilitate positioning when mounting
the outer ring, expansion compensating bearings which
absorb dimension variation of the bearing fitting surface
due to housing temperature, and TAB bearings that are
able to withstand contamination in the lubricating oil.
2b
2b
2a
Deep groove ball bearings
Roller bearings
r
Point contact
Linear contact
Contact surface is oval when Contact surface is generally
load is applied.
rectangular when load is
applied.
Because of point contact
there is little rolling
resistance, ball bearings are
suitable for low torque and
high-speed applications.
They also have superior
acoustic characteristics.
Because of linear contact,
rotational torque is higher for
roller bearings than for ball
bearings, but rigidity is also
higher.
Load capacity is lower for
ball bearings, but radial
bearings are capable of
bearing loads in both the
radial and axial direction.
Load capacity is higher for
rolling bearings. Cylindrical
roller bearings equipped with
a lip can bear slight radial
loads. Combining tapered
roller bearings in pairs
enables the bearings to bear
an axial load in both directions.
Table 1.2 Configuration of sealed ball bearings
Type
and
symbol
Configuration
Load capacity
Characteristics
Contact with
raceway
Ball bearings
A-8
Shield
Non-contact Non-contact
ZZ
LLB
Sealed
Contact
LLU
Low torque
LLH
●Classification and Characteristics of Rolling Bearings
Angular contact ball bearings
Cylindrical roller bearings
The line that unites point of contact of the inner ring,
ball and outer ring runs at a certain angle (contact angle)
in the radial direction. Bearings are generally designed
with three contact angles.
Angular contact ball bearings can support an axial load,
but cannot be used by single bearing because of the
contact angle. They must instead be used in pairs or in
combinations.
Angular contact ball bearings include double row
angular contact ball bearings for which the inner and
outer rings are combined as a single unit. The contact
angle of double row angular contact ball bearings is 25˚.
There are also four-point contact bearings that can
support an axial load in both directions by themselves.
These bearings however require caution because
problems such as excessive temperature rise and
wearing could occur depending on the load conditions.
Uses rollers for rolling elements, and therefore has a
high load capacity. The rollers are guided by the ribs of
the inner or outer ring. The inner and outer rings can be
separated to facilitate assembly, and both can be fit with
shaft or housing tightly. If there is no ribs, either the inner
or the outer ring can move freely in the axial direction.
Cylindrical roller bearings are therefore ideal to be used
as so-called "free side bearings" that absorb shaft
expansion. In the case where there is a ribs, the bearing
can bear a slight axial load between the end of the rollers
and the ribs. Cylindrical roller bearings include the HT
type which modifies the shape of roller end face and ribs
for increasing axial road capacity. And the E type with a
special internal design for enhancing radial load capacity.
The E type is standardized for small-diameter sizes.
Table 1.6 shows the basic configuration for cylindrical
roller bearings.
Table 1.3 Contact angle and symbol
In addition to these, there are cylindrical roller bearings
with multiple rows of rollers and the SL type of full
complement roller bearing without cage.
Contact angle
Contact angle and contact angle symbol
Contact angle
symbol
15°
C
30°
A
1）
Table 1.6 Types of cylindrical roller bearings
40°
B
Type
and
Symbol
NU type
N type
NJ type
NF type
NUP type
NH type
（NJ+HJ）
Drawings
Contact angle
NU type
NJ type
NUP type
N type
NF type
NH type
Note 1: Contact angle symbol has been abbreviated
as "A".
Table 1.4 Configuration of double row angular contact ball bearings
Type
Open
Shield
ZZ
Non-contact
sealed
LLM
Contact
sealed
LLD
Configuration
and
symbol
Type
and
symbol
Back-to-back
duplex
DB
Configuration
Table 1.5 Combinations of duplex angular contact ball bearings
r
Face-to-face
duplex
DF
Tandem duplex
DT
r
A-9
●Classification and Characteristics of Rolling Bearings
Tapered roller bearings
Spherical roller bearings
Tapered roller bearings are designed so the inner/outer
ring raceway and apex of the tapered rollers intersect at
one point on the bearing centerline. By receiving
combined load from inner and outer ring, the rollers are
pushed against the inner ring rib and roll guided with rib.
Induced force is produced in the axial direction when a
radial load is applied, so must be handled by using a pair
of bearings. The inner ring with rollers and outer ring
come apart, thus facilitating mounting with clearance or
preload. Assembled clearance is however hard to
manage and requires special attention. Tapered roller
bearings are capable of supporting large loads in both the
axial and radial directions.
NTN bearings with 4T-, ET-, T- and U attached to the
name conform to ISO and JIS standards for sub-unit
dimensions (nominal contact angle, nominal small end
diameter of outer ring) and are internationally
interchangeable.
NTN also has a line of case hardened steel bearings
designed for longer life (ETA-, ET-, etc.). NTN tapered
roller bearings also include bearings with two and four
rows of tapered rollers for extra-heavy loads.
Equipped with an outer ring with a spherical raceway
surface and an inner ring which holds two rows of barrelshaped rolling elements, NTN spherical roller bearings
are able to adjust center alignment to handle inclination of
the axle or shaft.
There are variety of bearing types that differ according
to internal design.
Spherical roller bearings include as type equipped with
an inner ring with a tapered bore. The bearing can easily
be mounted on a shaft by means of an adapter or
withdrawal sleeve. The bearing is capable of supporting
heavy loads, and is therefore often used in industrial
machinery. When heavy axial load is applied to the
bearing, the load on rollers of another row is disappeared,
and can cause problems. Attention must therefore be
paid to operating conditions.
Table 1.7 Types of spherical roller bearings
Standard
(B type)
C type
213 type
E type
Configuration
Type
Thrust bearings
There are many types of thrust bearings that differ
according to shape of rolling element and application.
Allowable rotational speed is generally low and special
attention must be paid to lubrication.
Sub-unit dimensions
2α
In addition to the ones given below, there are various
types of thrust bearings for special applications. For details,
see the catalog devoted to the concerned type of bearing.
E
Table 1.8 Types of thrust bearings
Type
E : nominal small end diameter of outer ring
α : Nominal contact angle
Single direction thrust ball
bearing
Needle roller thrust bearing
AXK type
Fig. 1.3 Tapered roller bearings
Configuration
AS type raceway disc
GS/WS type raceway disc
Cylindrical roller thrust bearing
Spherical roller thrust bearing
Center alignment
angle
A-10
●Classification and Characteristics of Rolling Bearings
Needle roller bearings
Bearing unit
Needle roller bearings use needle rollers as rolling
elements. The needle rollers are a maximum of 5 mm in
diameter and are 3 to 10 times as long as they are in
diameter. Because the bearings use needle rollers as
rolling elements, the cross-section is thin, but they have a
high load capacity for their size. Because of the large
number of rolling elements, the bearings have high rigidity
and are ideally suited to wobbling or pivoting motion.
A unit comprised of a ball bearing inserted into various
types of housings. The housing can be bolted onto
machinery and the inner ring can be easily mounted on
the shaft with a set screw.
This means the bearing unit can support rotating
equipment without special design to allow for mounting. A
variety of standardized housing shapes is available,
including pillow and flange types. The outer diameter of
the bearing is spherical just like the inner diameter of the
housing, so it capable of aligning itself on the shaft.
For lubrication, grease is sealed inside the bearing, and
particle generation is prevented by a double seal. For
details, see the catalog devoted to the concerned type of
bearing.
There is a profusion of types of needle roller bearings,
and just a few of the most representative types are
covered here. For details, see the catalog devoted to the
concerned type of bearing.
Table 1.9 Main types of needle roller bearings
Type
Needle roller bearing with cage
Grease fitting
Ball
Housing
Spherical outer ring
Solid type needle roller bearings
Slinger
Configuration
Special rubber seal
Setscrew with ball
Shell type needle roller bearings
Fig. 1.4 Oil-lubricated bearing unit
Roller follower
Cam follower
A-11
●Bearing Selection
2. Bearing Selection
Rolling element bearings are available in a variety of
types, configurations, and sizes. When selecting the
correct bearing for your application, it is important to
consider several factors, and analyse in various means.
A comparison of the performance characteristics for each
bearing type is shown in Table 2.1. As a general
guideline, the basic procedure for selecting the most
appropriate bearing is shown in the following flow chart.
2.1 Bearing selection flow chart
Procedure
Confirm operating
conditions and
operating
environment
●Function and construction of
components to house bearings
Confirmation items
●Bearing mounting location
●Bearing load (direction and
magnitude)
●Rotational speed
●Vibration and shock load
●Bearing temperature (Ambient
temperature / temperature
rise)
●Operating environment
(potential for corrosion, degree
of contamination, extent of
lubrication)
Select bearing
type and
configuration
●Dimensional limitations
(refer to page insert …A-30)
●Bearing load (magnitude,
direction, vibration; presence
of shock load)
(refer to page insert …A-21)
●Rotational speed
(refer to page insert …A-70)
●Bearing tolerances
(refer to page insert …A-35)
●Rigidity
(refer to page insert …A-67)
●Allowable misalignment of
inner/outer rings
(refer to page insert …A-87)
●Friction torque
(refer to page insert …A-71)
●Bearing arrangement (fixed
side, floating side)
(refer to page insert …A-15)
●Installation and disassembly
requirements
(refer to page insert …A-88)
●Bearing availability and cost
Selection of bearing type and configuration
(1) Dimensional limitations
The allowable space for bearings is generally limited.
In most cases, shaft diameter (or the bearing bore
diameter) has been determined according to the
machine’s other design specifications. Therefore,
bearing’s type and dimensions are determined
according to bearing bore diameters. For this reason all
dimension tables are organized according to standard
bore diameters. There is a wide range of standardized
bearing types and dimensions: the right one for a
particular application can usually be found in these
tables.
(2) Bearing load
The characteristics, magnitude, and direction of loads
acting upon a bearing are extremely variable. In
general, the basic load ratings shown in bearing
dimension tables indicate their load capacity. However,
in determining the appropriate bearing type,
consideration must also be given to whether the acting
load is a radial load only or combined radial and axial
load, etc. When ball and roller bearings within the same
dimension series are considered, the roller bearings
have a larger load capacity and are also capable of
withstanding greater vibration and shock loads.
A-12
Select bearing
dimensions
●Design life of components to
house bearings
(refer to page insert …A-19)
●Dynamic/static equivalent load
conditions
(refer to page insert …A-25)
●Safety factor
(refer to page insert …A-19)
●Allowable speed
(refer to page insert …A-70)
●Allowable axial load
(refer to page insert …A-19, 25)
●Allowable space
(refer to page insert …A-30)
Select bearing
tolerances
●Shaft runout tolerances
(refer to page insert …A-35)
●Rotational speed
(refer to page insert …A-70)
●Torque fluctuation
(3) Rotational speed
The allowable speed of a bearing will differ
depending upon bearing type, size, tolerances, cage
type, load, lubricating conditions, and cooling
conditions.
The allowable speeds listed in the bearing tables for
grease and oil lubrication are for normal tolerance NTN
bearings. In general, deep groove ball bearings,
angular contact ball bearings, and cylindrical roller
bearings are most suitable for high speed applications.
(4) Bearing tolerances
The dimensional accuracy and operating tolerances
of bearings are regulated by ISO and JIS standards.
For equipment requiring high tolerance shaft runout or
high speed operation, bearings with Class 5 tolerance
or higher are recommended. Deep groove ball
bearings, angular contact ball bearings, and cylindrical
roller bearings are recommended for high rotational
tolerances.
(5) Rigidity
Elastic deformation occurs along the contact surfaces
of a bearing’s rolling elements and raceway surfaces
under loading. With certain types of equipment it is
necessary to reduce this deformation as much as
●Bearing Selection
Select bearing’s
internal
clearance
●Material and shape of shaft
and housing
(refer to page insert …A-85)
●Fit
(refer to page insert …A-49)
●Temperature differential
between inner/outer rings
(refer to page insert …A-59)
●Allowable misalignment of
inner/outer rings
(refer to page insert …A-87)
●Load (magnitude, nature)
(refer to page insert …A-21)
●Amount of preload
(refer to page insert …A-66)
●Rotational speed
(refer to page insert …A-70)
Select cage
type and
material
●Rotational speed
(refer to page insert …A-70)
●Noise level
●Vibration and shock load
●Momentary load
●Lubrication type and method
(refer to page insert …A-72)
Select lubricant,
lubrication method,
sealing method
●Operating temperature
(refer to page insert …A-72)
●Rotational speed
(refer to page insert …A-70)
●Lubrication type and method
(refer to page insert …A-72)
●Sealing method
(refer to page insert …A-80)
●Maintenance and inspection
(refer to page insert …A-94)
possible. Roller bearings exhibit less elastic
deformation than ball bearings. Furthermore, in some
cases, bearings are given a load in advance
(preloaded) to increase their rigidity. This procedure is
commonly applied to deep groove ball bearings,
angular contact ball bearings, and tapered roller
bearings.
Confirm
handling
procedures
Select any
special bearing
specifications
●Operating environment
(high/low temperature,
vacuum, pharmaceutical, etc.)
●Requirement for high reliability
●Installation-related dimensions
(refer to page insert …A-86)
●Installation and disassembly
procedures
(refer to page insert …A-88)
(8) Installation and disassembly
Some applications require frequent disassembly and
reassembly to enable periodic inspections and repairs.
For such applications, bearings with separable
inner/outer rings, such as cylindrical roller bearings,
needle roller bearings, and tapered roller bearings are
most appropriate. Incorporation of adapter sleeves
simplifies the installation and disassembly of selfaligning ball bearings and spherical roller bearings with
tapered bores.
(6) Misalignment of inner and outer rings
Shaft flexure, variations in shaft or housing accuracy,
and fitting errors. result in a certain degree of
misalignment between the bearing’s inner and outer
rings. In cases where the degree of misalignment is
relatively large, self-aligning ball bearings, spherical
roller bearings, or bearing units with self-aligning
properties are the most appropriate choices.
(Refer to Fig. 2.1)
Allowable
misalignment
angle
(7) Noise and torque levels
Rolling bearings are manufactured and processed
according to high precision standards, and therefore
generally produce only slight amounts of noise and
torque. For applications requiring particularly low-noise
or low-torque operation, deep groove ball bearings and
cylindrical roller bearings are most appropriate.
Self-aligning ball bearing
Allowable
misalignment
angle
Spherical roller bearing
Fig. 2.1
A-13
●Bearing Selection
2.2 Type and characteristics
Table 2.1 shows types and characteristics of rolling bearings.
Table 2.1 Type of rolling bearings and performance comparison
Deep
Angular Double row
Duplex
SelfCylindrical
SingleDoubleDouble row Needle
groove
contact
angular
angular
aligning
roller
flange
flange
cylindrical
roller
ball
ball
contact
contact
ball
bearings
cylindrical
cylindrical
roller
bearings
bearings bearings ball bearings ball bearings bearings
roller bearings roller bearings bearings
Bearing types
Characteristics
Load Carrying Capacity
Radial load
Axial load
High speed
1
1
High rotating accuracy
Low noise/vibration
Low friction torque
High rigidity
1
1
☆☆☆☆ ☆☆☆☆ ☆☆
☆☆☆
☆☆☆
☆☆☆
☆☆☆
☆☆
☆☆☆☆ ☆☆☆
☆
☆☆☆☆ ☆☆☆
☆☆
1
☆☆
1
Vibration/shock resistance
☆☆
☆
2
◎
○
3
Moveable in axial direction ○
Separable inner/outer rings
Inner ring tapered bore
☆☆☆
☆☆☆
☆☆☆
☆☆
☆
☆☆☆
☆
☆
☆
☆
☆
☆
☆☆
☆☆
☆☆
☆☆
☆☆☆
☆☆
★
☆☆
☆☆
☆☆
☆☆
☆☆
☆☆☆
☆
◎
DB and DF
◎ For
arrangement ◎
○
◎
○
DB
○ For
arrangement
◎
◎
○
○
○
◎
4
○
5
○
Reference page
B-5
B-43
B-74
B-43
○
○
○
For duplex
arrangement
Remarks
☆☆☆
☆
Allowable misalignment 1
☆
for inner/outer rings
Stationary in axial direction
☆☆☆☆ ☆☆☆
○
NU, N
type
NJ, NF
type
B-91
B-91
B-79
Tapered Double-row, Spherical Thrust Double row Cylindrical Spherical
4-row
angular
roller
roller
ball
roller
roller
tapered bearings bearings
contact
bearings
thrust
thrust
roller
thrust ball bearings bearings
bearings
bearings
Reference
page
NUP, NP, NH NNU, NN
type
type
B-91
B-116
NA
type
E-2
Bearing types
Characteristics
Load Carrying Capacity
Radial load
Axial load
☆☆☆
☆☆
☆☆☆
☆
☆☆
☆
☆☆☆
☆
☆☆☆
☆
☆
☆
1
A-66
High speed
A-31
High rotating accuracy
―
Low noise/vibration
A-67
Low friction torque
1
1
1
1
☆☆
☆☆☆☆ ☆☆☆
☆☆
☆☆☆
☆☆☆
A-54
High rigidity
☆☆
☆☆☆
☆☆☆
★
☆☆☆
☆☆☆
A-18
Vibration/shock resistance
☆☆☆
★
★
☆☆☆
A-79
Allowable misalignment 1
for inner/outer rings
◎
○
○
A-13
Stationary in axial direction
A-13
Moveable in axial direction
☆
○
○
◎
◎
○
○
○
○
○
○
○
○
○
○
Including
needle roller
thrust bearing
For duplex
arrangement
B-133
B-133
B-233
B-269
B-269
E-48
A-14
2
3
4
―
Separable inner/outer rings
A-79
Inner ring tapered bore
―
B-269
1
Remarks
Reference page
5
1 ☆ The number of stars indicates
the degree to which that bearing
type displays that particular
characteristic.
★ Not applicable to that bearing
type.
2 ◎ Indicates dual direction. ○
Indicates single direction axial
movement only.
3 ◎ indicates movement in the axial
direction is possible for the
raceway surface; ○ indicates
movement in the axial direction is
possible for the fitting surface of
the outer ring or inner ring.
4 ○ Indicates both inner ring and
outer ring are detachable.
5 ○ Indicates inner ring with
tapered bore is possible.
●Bearing Selection
cylindrical roller bearings, and occurs on the fitting surface
for those which are not separable, such as deep groove
ball bearings.
In applications with short distances between bearings,
shaft expansion and contraction due to temperature
fluctuations is slight, therefore the same type of bearing
may be used for both the fixed-side and floating-side
bearing. In such cases it is common to use a set of
matching bearings, such as angular contact ball bearings,
to guide and support the shaft in one axial direction only.
Table 2.2 (1) shows typical bearing arrangements
where the bearing type differs on the fixed side and
floating side. Table 2.2 (2) shows some common bearing
arrangements where no distinction is made between the
fixed side and floating side. Vertical shaft bearing
arrangements are shown in Table 2.2 (3).
2.3 Selection of bearing arrangement
Shafts or axles are generally supported by a pair of
bearings in the axial and radial directions. The bearing
which prevents axial movement of the shaft relative to the
housing is called the "fixed side bearing" and the bearing
which allows axial movement relatively is called the
"floating-side bearing". This allows for expansion and
contraction of the shaft due to temperature variation and
enables error in bearing mounting clearance to be
absorbed.
The fixed side bearing is able to support radial and
axial loads. A bearing which can fix axial movement in
both directions should therefore be selected. A floatingside bearing that allows movement in the axial direction
while supporting a radial load is desirable. Movement in
the axial direction occurs on the raceway surface for
bearings with separable inner and outer rings such as
Table 2.2 (1) Bearing arrangement (distinction between fixed and floating-side)
Arrangement
Fixed
Comment
Floating
1. General arrangement for small machinery.
2. For radial loads, but will also accept axial loads.
Application
(Reference)
Small pumps,
auto-mobile
transmissions, etc.
1. Suitable when mounting error and shaft deflection are minimal or used
Medium-sized
for high rotational speed application.
electric motors,
2. Even with expansion and contraction of shaft, floating side moves
ventilators, etc.
smoothly.
1. Radial loading and dual direction of axial loading possible.
2. In place of duplex angular contact ball bearings, double-row angular
contact ball bearings are also used.
Worm reduction
gear
1. Heavy loading capable.
2. Shafting rigidity increased by preloading the two back-to-back
fixed bearings.
3. Requires high precision shafts and housings, and minimal fitting
errors.
Reduction gears for
general industrial
machinery
1. Allows for shaft deflection and fitting errors.
2. By using an adaptor on long shafts without screws or shoulders,
bearing mounting and dismounting can be facilitated.
3. Self-aligning ball bearings are used for positioning in the axial direction,
and not suitable for applications requiring support of axial load.
General industrial
machinery
1. Widely used in general industrial machinery with heavy and shock load demands.
2. Allows for shaft deflection and fitting errors.
3. Accepts radial loads as well as dual direction of axial loads.
Reduction gears for
general industrial
machinery
1. Accepts radial loads as well as dual direction axial loads.
2. Suitable when both inner and outer ring require tight fit.
Reduction gears for
general industrial
machinery
1. Capable of handling large radial and axial loads at high rotational
speeds.
2. Maintains clearance between the bearing’s outer diameter and
housing inner diameter to prevent deep groove ball bearings from
receiving radial loads.
Transmissions for
diesel locomotives
A-15
●Bearing Selection
Table 2.2 (2) Bearing arrangement (no distinction between fixed and floating-side)
Arrangement
Comment
1. General arrangement for use in small machines.
2. Preload is sometimes applied by placing a spring on the outer ring
side surface or inserting a shim.
(can be floating-side bearings.)
Application
(Reference)
Small electric motors,
small reduction
gears, etc.
1. Back to back arrangement is preferable to face to face arrangement
when moment load applied.
Machine tool
2. Able to support axial and radial loads; suitable for high-speed rotation. spindles, etc.
3. Rigidity of shaft can be enhanced by providing preload.
Back to back
1. Capable of supporting extra heavy loads and impact loads.
2. Suitable if inner and outer ring tight fit is required.
3. Care must be taken that axial clearance does not become too small
during operation.
Construction
equipment, mining
equipment sheaves,
agitators, etc.
1. Withstands heavy and shock loads. Wide range application.
2. Shaft rigidity can be enhanced by providing preload, but make sure
preload is not excessive.
3. Back-to-back arrangement for moment loads, and face-to-face
arrangement to alleviate fitting errors.
4. With face-to-face arrangement, inner ring tight fit is facilitated.
Reduction gears,
front and rear axle of
automobiles, etc.
Face to face
Table 2.2 (3) Bearing arrangement (Vertical shaft)
Arrangement
Comment
1. When fixing bearing is a duplex angular contact ball bearing, floating
bearing should be a cylindrical roller bearing.
Application
(Reference)
Vertically mounted
electric motors, etc.
1. Most suitable arrangement for very heavy axial loads.
Crane center shafts,
2. Shaft deflection and mounting error can be absorbed by matching the
etc.
center of the spherical surface with the center of spherical roller thrust
bearings.
A-16
●Load Rating and Life
3. Load Rating and Life
3.1 Bearing life
Even in bearings operating under normal conditions, the
surfaces of the raceway and rolling elements are
constantly being subjected to repeated compressive
stresses which causes flaking of these surfaces to occur.
This flaking is due to material fatigue and will eventually
cause the bearings to fail. The effective life of a bearing
is usually defined in terms of the total number of
revolutions a bearing can undergo before flaking of either
the raceway surface or the rolling element surfaces
occurs.
For ball bearings: L10 ＝（
C
3
） ……………（3.1）
P
C
For roller bearings: L10 ＝（
P
10/3
） …………（3.2）
where,
L10 : Basic rating life 106 revolutions
C : Basic dynamic load rating, N {kgf}
(Cr: radial bearings, Ca: thrust bearings)
P : Equivalent dynamic load, N {kgf}
(Pr: radial bearings, Pa: thrust bearings)
-1
n : Rotational speed, min
Other causes of bearing failure are often attributed to
problems such as seizing, abrasions, cracking, chipping,
scuffing, rust, etc. However, these so called "causes" of
bearing failure are usually themselves caused by
improper installation, insufficient or improper lubrication,
faulty sealing or inaccurate bearing selection. Since the
above mentioned "causes" of bearing failure can be
avoided by taking the proper precautions, and are not
simply caused by material fatigue, they are considered
separately from the flaking aspect.
The relationship between Rotational speed n and speed
factor fn as well as the relation between the basic rating
life L10h and the life factor fn is shown in Table 3.1 and
Fig. 3.1.
Table 3.1 Correlation of bearing basic rating life, life factor,
and speed factor
3.2 Basic rating life and basic dynamic load rating
A group of seemingly identical bearings when subjected
to identical load and operating conditions will exhibit a
wide diversity in their durability.
This "life" disparity can be accounted for by the
difference in the fatigue of the bearing material itself.
This disparity is considered statistically when calculating
bearing life, and the basic rating life is defined as follows.
Classification
Ball bearing
Basic rating life
L10h h
6
Roller bearing
3
10
60n
( CP ) = 500 f
6
h
Life factor
fh
fn C
P
Speed factor
fn
( 33.3
n )
10
60n
3
n
min-1
fn
60,000
0.082
1/3
60,000
( 33.3
n )
fh
n
min-1
fn
5.4
60,000
4.5
40,000
20,000
30,000
4
6,000
4,000
Basic dynamic load rating expresses a rolling bearing's
capacity to support a dynamic load. The basic dynamic
load rating is the load under which the basic rating life of
the bearing is 1 million revolutions. This is expressed as
pure radial load for radial bearings and pure axial load for
thrust bearings. These are referred to as "basic dynamic
load rating (Cr)" and "basic dynamic axial load rating (Ca)."
The basic dynamic load ratings given in the bearing
tables of this catalog are for bearings constructed of NTN
standard bearing materials, using standard manufacturing
techniques.
3,000
1,500
8,000
0.18
0.24
2,000
10,000
15,000
0.20
3
10,000
8,000
0.18
0.20
6,000
20,000
0.24
3,000
0.26
0.28
2,000
6,000
10,000
800
0.30
6,000
1,500
4,000
0.35
600
0.4
3,000
0.5
1.8
600
0.7
0.8
300
1.4
200
1.3
150
1.2
100
1,000
900
800
700
600
500
1.0
400
1.1
20
1.2
15
1.3
1.49
2,000
1.5
1,500
300
1.0
1.4
1.3
0.7
0.9
30
20
0.80
15
0.74
700
500
1.0
400
1.2
10
1.44
1.0
0.95
0.90
300
1.3
1.4
1.1
600
1.1
0.85
1.2
800
40
0.95
1,000
900
60
0.75
200
0.6
0.85
0.80
200
Fig. 3.1 Bearing life rating scale
A-17
1.7
1.6
0.5
0.8
0.90
1.4
10
1.8
3,000
80
1.1
0.9
40
30
1.9
1.5
0.6
80
The relationship between the basic rating life, the basic
dynamic load rating and the bearing load is given in
formula.
2
4,000
0.4
1.6
1,500
200
60
800
400
2,000
300
100
1,000
0.35
1.7
400
150
2
1.9
2.5
8,000
0.30
1,000
3
15,000
0.22
4,000
2.5
0.26
0.28
3.5
30,000
0.16
3.5
20,000
0.16
0.22
40,000
20,000
15,000
0.14
8,000
4
0.12
0.14
15,000
10,000
4.6
4.5
0.106
30,000
40,000
0.12
fh
60,000
40,000
0.10
L10h
h
80,000
5
0.09
30,000
= 500 fh
Roller bearings
L10h
h
80,000
10/3
fn C
P
Ball bearings
The basic rating life is based on a 90% statistical model
which is expressed as the total number of revolutions
90% of the bearings in an identical group of bearings
subjected to identical operating conditions will attain or
surpass before flaking due to material fatigue occurs. For
bearings operating at fixed constant speeds, the basic
rating life (90% reliability) is expressed in the total number
of hours of operation.
( CP )
0.76
3/10
10/3
●Load Rating and Life
3.3.1 Reliability factor a1
The value of reliability factor a1 is provided in Table 3.2
for reliability of 90% or greater.
When several bearings are incorporated in machines
or equipment as complete units, all the bearings in the
unit are considered as a whole when computing bearing
life (see formula 3.3).
3.3.2 Bearing characteristics factor a2
Bearing characteristics concerning life vary according to
bearing material, quality of material and if using special
manufacturing process. In this case, life is adjusted using
bearing characteristics factor a2.
1
L＝
…………（3.3）
1
1
1 1/e
（ e ＋ e ＋ … e）
L2
Ln
L1
where,
L : Total basic rating life of entire unit, h
L1 , L2 …Ln : Basic rating life of individual bearings, 1, 2,
…n, h
e = 10/9....................For ball bearings
e = 9/8......................For roller bearings
The basic dynamic load ratings listed in the catalog are
based on NTN's standard material and process,
therefore, the adjustment factor a2 ＝1. a2 ＞ 1 may be
used for specially enhanced materials and manufacturing
methods.If this applies, consult with NTN Engineering.
When the load conditions vary at regular intervals, the
life can be given by formula (3.4).
Lm ＝（
Φ1
L1
＋
Φ2
L2
＋…
Φj
Lj
Dimensions change significantly if bearings made of
high carbon chrome bearing steel with conventional heat
treatment are used at temperatures in excess of 120˚C
for an extended period of time. NTN Engineering
therefore offers a bearing for high-temperature
applications specially treated to stabilize dimensions at
the maximum operating temperature (TS treatment). The
treatment however makes the bearing softer and affects
life of the bearing. Life is adjusted by multiplying by the
values given in Table 3.3.
-1
） ……………（3.4）
where,
L m : Total life of bearing
Φ j : Frequency of individual load conditions
(ΣΦ j = 1)
L j : Life under individual conditions
If equivalent load P and rotational speed n are
operating conditions of the bearing, basic rated dynamic
load C that satisfies required life of the bearing is
determined using Table 3.1 and formula (3.5). Bearings
that satisfy the required C can be selected from the
bearing dimensions table provided in the catalog.
Table 3.2 Reliability factor a1
Reliability %
Ln
Reliability factor a1
90
L10
1.00
95
L5
0.62
96
L4
0.53
97
L3
0.44
98
L2
0.33
99
L1
0.21
fh
C ＝ P ――……………………………………（3.5）
fn
3.3 Adjusted rating life
Table 3.3 Treatment for stabilizing dimensions
The basic bearing rating life (90% reliability factor) can
be calculated through the formulas mentioned earlier in
Section 3.2. However, in some applications a bearing life
factor of over 90% reliability may be required. To meet
these requirements, bearing life can be lengthened by the
use of specially improved bearing materials or
manufacturing process. Bearing life is also sometimes
affected by operating conditions such as lubrication,
temperature and rotational speed.
Basic rating life adjusted to compensate for this is
called "adjusted rating life," and is determined using
formula (3.6).
Max. operating
Symbol temperature (C˚)
Bearing characteristics
factor a2
TS2
160
1.00
TS3
200
0.73
TS4
250
0.48
3.3.3 Operating conditions factor a3
Operating conditions factor a3 is used to compensate for
when lubrication condition worsens due to rise in
temperature or rotational speed, lubricant deteriorates, or
becomes contaminated with foreign matter.
Generally speaking, when lubricating conditions are
satisfactory, the a3 factor has a value of one; and when
lubricating conditions are exceptionally favorable, and all
other operating conditions are normal, a3 can have a
value greater than one. a3 is however less than 1 in the
following cases:
Lna ＝ a1・a2・a3・L10…（3.6）
where,
Lna : Adjusted rating life in millions of revolutions
(106)
a1 : Reliability factor
a2 : Bearing characteristics factor
a3 : Operating conditions factor
A-18
●Load Rating and Life
¡Dynamic viscosity of lubricating oil is too low for bearing
When a super heavy load is applied, harmful plastic
distortion could be produced on the contact surfaces of
the rolling elements and raceway. The formulae for
determining basic rating life (3.1, 3.2, and 3.6) do not
apply if Pr exceeds either Cor (Basic static load rating) or
0.5 Cr for radial bearings, or if Pa exceeds 0.5 Ca for thrust
bearings.
Operating conditions factor a3
operating temperature
2
2
(13 mm /s or less for ball bearings, 20 mm /s for roller
bearings)
¡Rotational speed is particularly low
-1
(If sum of rotational speed n min and rolling element
pitch diameter Dpw mm is Dpw・n ＜ 10,000)
¡Bearing operating temperature is too high
If bearing operating temperature is too high, the
raceway becomes softened, thereby shortening life.
Life is adjusted by multiplying by the values given in
Fig. 3.2 as the operating condition factor according to
operating temperature. This however does not apply to
bearings that have been treated to stabilize
dimensions.
¡Lubricant contaminated with foreign matter or moisture
If using special operating condition, consult with NTN
Engineering. Even if a2 ＞ 1 is used for specially
bearings made of enhanced materials or produced by
special manufacturing methods, a2×a3 ＜ 1 is used if
lubricating conditions are not favorable.
3.4 Machine applications and requisite life
When selecting a bearing, it is essential that the
requisite life of the bearing be established in relation to
the operating conditions. The requisite life of the bearing
is usually determined by the type of machine in which the
bearing will be used, and duration of service and
operational reliability requirements. A general guide to
these requisite life criteria is shown in Table 3.4. When
determining bearing size, the fatigue life of the bearing is
an important factor; however, besides bearing life, the
strength and rigidity of the shaft and housing must also be
taken into consideration.
3.5 Basic static load rating
When stationary rolling bearings are subjected to static
loads, they suffer from partial permanent deformation of
the contact surfaces at the contact point between the
rolling elements and the raceway. The amount of
deformity increases as the load increases, and if this
increase in load exceeds certain limits, the subsequent
smooth operation of the bearings is impaired.
1.0
0.8
0.6
0.4
0.2
It has been found through experience that a permanent
deformity of 0.0001 times the diameter of the rolling
element, occurring at the most heavily stressed contact
point between the raceway and the rolling elements, can
be tolerated without any impairment in running efficiency.
100
150
200
250
300
Operating temperature ˚C
Fig. 3.2 Operating conditions factor according to operating temperature
Table 3.4 Machine application and requisite life (reference)
Service
classification
∼4
4∼12
Machines used for short
periods or used only
occasionally
¡Household appliances
¡Electric hand tools
Short period or intermittent
use, but with high reliability
requirements
¡Medical appliances ¡Construction
¡Measuring instruments equipment
¡Elevators
¡Cranes
Machines not in constant
use, but used for long
periods
Machines in constant use
over 8 hours a day
×103 h
Machine application and requisite life (reference) L10h
12∼30
30∼60
60∼
¡Farm machinery
¡Office equipment
¡Home air conditioning motor
¡Automobiles
¡Two-wheeled vehicles
¡Crane (sheaves)
¡Small motors
¡Buses/trucks
¡General gear drives
¡Woodworking
machines
¡Machine spindles
¡Industrial motors
¡Crushers
¡Vibrating screens
¡Main gear drives
¡Rubber/plastic
¡Calender rolls
¡Printing machines
¡Rolling mills
¡Escalators
¡Conveyors
¡Centrifuges
¡Railway vehicle
axles
¡Air conditioners
¡Large motors
¡Compressor pumps
¡Locomotive axles
¡Traction motors
¡Mine hoists
¡Pressed flywheels
¡Papermaking
machines
¡Propulsion
equipment for
marine vessels
¡Water supply
equipment
¡Mine drain
pumps/ventilators
¡Power generating
equipment
24 hour continuous
operation, non-interruptable
A-19
●Load Rating and Life
The basic static load rating refers to a fixed static load
limit at which a specified amount of permanent
deformation occurs. It applies to pure radial loads for
radial bearings and to pure axial loads for thrust bearings.
The maximum applied load values for contact stress
occurring at the rolling element and raceway contact
points are given below.
For ball bearings
For self-aligning ball bearings
For roller bearings
This is generally determined by taking the safety factor
So given in Table 3.5 and formula (3.7) into account.
So =Co／Po…（3.7）
where,
So : Safety factor
Co : Basic static load rating, N {kgf}
(radial bearings: Cor, thrust bearings: Coa)
Po : Static equivalent load, N {kgf}
(radial: Por, thrust: Coa)
2
4,200 MPa {428kgf/mm }
2
4,600 MPa {469kgf/mm }
2
4,000 MPa {408kgf/mm }
Table 3.5 Minimum safety factor values S0
Referred to as "basic static radial load rating" for radial
bearings and "basic static axial load rating" for thrust
bearings, basic static load rating is expressed as Cor or
Coa respectively and is provided in the bearing dimensions
table.
Ball
bearings
Roller
bearings
High rotational accuracy demand
2
3
Normal rotating accuracy demand
(Universal application)
1
1.5
0.5
1
Operating conditions
Slight rotational accuracy
deterioration permitted
(Low speed, heavy loading, etc.)
3.6 Allowable static equivalent load
Generally the static equivalent load which can be
permitted (See page A-25) is limited by the basic static
rating load as stated in Section 3.5. However, depending
on requirements regarding friction and smooth operation,
these limits may be greater or lesser than the basic static
rating load.
Note 1: For spherical thrust roller bearings, min. S0 value=4.
2: For shell needle roller bearings, min. S0 value=3.
3: When vibration and/or shock loads are present, a load factor
based on the shock load needs to be included in the P0 max value.
4: If a large axial load is applied to deep groove ball bearings or
angular ball bearings, the contact oval may exceed the raceway
surface. For more information, please contact NTN Engineering.
A-20
●Bearing Load Calculation
4. Bearing Load Calculation
To compute bearing loads, the forces which act on the
shaft being supported by the bearing must be
determined. Loads which act on the shaft and its related
parts include dead load of the rotator, load produced
when the machine performs work, and load produced by
transmission of dynamic force. These can theoretically
be mathematically calculated, but calculation is difficult in
many cases.
Ks ＝ Kt・tanα（Spur gear） ……（4.3a）
tanα
＝ Kt・ cosβ（Helical gear）……（4.3b）
Kr ＝ √Kt ＋Ks ………………………（4.4）
2
2
Ka ＝ Kt・tanβ（Helical gear） ……（4.5）
where,
Kt ：Tangential gear load (tangential force), N {kgf}
Ks ：Radial gear load (separating force), N {kgf}
Kr ：Right angle shaft load (resultant force of
tangential force and separating force), N {kgf}
Ka：Parallel load on shaft, N {kgf}
H ：Transmission force , kW
-1
n ：Rotational speed, min
Dp：Gear pitch circle diameter, mm
α：Gear pressure angle, deg
β：Gear helix angle, deg
A method of calculating loads that act upon shafts that
convey dynamic force, which is the primary application of
bearings, is provided herein.
4.1 Load acting on shafts
4.1.1 Load factor
There are many instances where the actual operational
shaft load is much greater than the theoretically
calculated load, due to machine vibration and/or shock.
This actual shaft load can be found by using formula
(4.1).
Because the actual gear load also contains vibrations
and shock loads as well, the theoretical load obtained by
the above formula should also be adjusted by the gear
factor fz as shown in Table 4.2.
K ＝ fw・Kc ……………………………（4.1）
where,
K ：Actual shaft load N｛kgf｝
fw ：Load factor (Table 4.1)
Kc：Theoretically calculated value N｛kgf｝
Table 4.1 Load factor fw
Amount
of shock
fw
Application
Very little or
no shock
Electric machines, machine tools,
1.0∼1.2 measuring instruments.
Light shock
Railway vehicles, automobiles,
rolling mills, metal working machines,
1.2∼1.5 paper making machines, printing
machines, aircraft, textile machines,
electrical units, office machines.
Heavy shock
Crushers, agricultural equipment,
1.5∼3.0 construction equipment, cranes.
Ks
Kt
Fig. 4.1 Spur gear loads
4.1.2 Gear load
The loads operating on gears can be divided into three
main types according to the direction in which the load is
applied; i.e. tangential (Kt), radial (Ks), and axial (Ka).
The magnitude and direction of these loads differ
according to the types of gears involved. The load
calculation methods given herein are for two general-use
gear and shaft arrangements: parallel shaft gears, and
cross shaft gears.
Ks
Ka
Kt
Fig. 4.2
Helical gear loads
Kt
Kr
Ks
Dp
(1)Loads acting on parallel shaft gears
The forces acting on spur gears and helical gears are
depicted in Figs. 4.1, 4.2, and 4.3. The load magnitude
can be found by using or formulas (4.2), through (4.5).
6
Kt ＝
19.1×10 ・H
Dp・n
6
1.95×10 ・H
＝
Dp・n
N
｝
……（4.2）
Fig. 4.3
｛kgf｝
A-21
Radial resultant forces
●Bearing Load Calculation
Table 4.2 Gear factor fz
Gear type
fz
Precision ground gears
(Pitch and tooth profile errors of less than 0.02 mm)
1.05∼1.1
Ordinary machined gears
(Pitch and tooth profile errors of less than 0.1 mm)
1.1∼1.3
For spiral bevel gears, the direction of the load varies
depending on the direction of the helix angle, the direction
of rotation, and which side is the driving side or the driven
side. The directions for the separating force (Ks) and axial
load (Ka) shown in Fig. 4.5 are positive directions. The
direction of rotation and the helix angle direction are
defined as viewed from the large end of the gear. The
gear rotation direction in Fig. 4.5 is assumed to be
clockwise (right).
(2)Loads acting on cross shafts
Gear loads acting on straight tooth bevel gears and
spiral bevel gears on cross shafts are shown in Figs. 4.4
and 4.5. The calculation methods for these gear loads are
shown in Table 4.3. Herein, to calculate gear loads for
straight bevel gears, the helix angle β= 0.
K tp
Ka p
Ks p
The symbols and units used in Table 4.3 are as follows:
Ka g
Ks g
Kt ：Tangential gear load (tangential force), N {kgf}
Ks ：Radial gear load (separating force), N {kgf}
Ka ：Parallel shaft load (axial load), N {kgf}
H ：Transmission force, kW
n ：Rotational speed, min-1
Dpm ：Mean pitch circle diameter, mm
α ：Gear pressure angle, deg
β ：Helix angle, deg
δ ：Pitch cone angle, deg
Kt g
Fig. 4.4 Loads on bevel gears
Kt
Ka
Because the two shafts intersect, the relationship of
pinion and gear load is as follows:
Ks
δ β
D pm
2
Ksp＝Kag…………………（4.6）
Kap＝Ksg…………………（4.7）
where,
Ksp，Ksg ：Pinion and gear separating force, N {kgf}
Kap，Kag：Pinion and gear axial load, N {kgf}
Fig. 4.5 Bevel gear diagram
Table 4.3 Loads acting on bevel gears
Types of load
Rotation
direction
Helix
direction
Clockwise
Counter clockwise
Clockwise
Counter clockwise
Right
Left
Left
Right
6
Tangential load (tangential force)
Kt
Radial load
(separation force)
Ks
Parallel load on gear
shaft (axial load)
Ka
Kt=
6
19.1×10 ・H
Dpm・n
1.95×10 ・H
,
Dpm・n
Driving side
Ks=Kt
tanα cosδ + tanβsinδ
cosβ
Ks=Kt
tanα cosδ - tanβsinδ
cosβ
Driven side
Ks=Kt
tanα cosδ - tanβsinδ
cosβ
Ks=Kt
tanα cosδ + tanβsinδ
cosβ
Driving side
Ka=Kt
tanα sinδ - tanβcosδ
cosβ
Ka=Kt
tanα sinδ + tanβcosδ
cosβ
Driven side
Ka=Kt
tanα sinδ + tanβcosδ
cosβ
Ka=Kt
tanα sinδ - tanβcosδ
cosβ
A-22
●Bearing Load Calculation
4.1.3 Chain / belt shaft load
The tangential loads on sprockets or pulleys when
power (load) is transmitted by means of chains or belts
can be calculated by formula (4.8).
4.2 Bearing load distribution
For shafting, the static tension is considered to be
supported by the bearings, and any loads acting on the
shafts are distributed to the bearings.
6
19.1 ×10 ・H
Dp・n
Kt＝
N
｝
For example, in the gear shaft assembly depicted in
Fig. 4.7, the applied bearing loads can be found by using
formulas (4.10) and (4.11).
……………（4.8）
6
1.95×10 ・H
｛kgf｝
Dp・n
＝
This example is a simple case, but in reality, many of
the calculations are quite complicated.
where,
Kt ：Sprocket/pulley tangential load, N {kgf}
FrA＝
H ：Transmitted force, kW
a+b
d
F1＋
b
c+d
Dp：Sprocket/pulley pitch diameter, mm
FrB＝−
For belt drives, an initial tension is applied to give
sufficient constant operating tension on the belt and
pulley. Taking this tension into account, the radial loads
acting on the pulley are expressed by formula (4.9). For
chain drives, the same formula can also be used if
vibrations and shock loads are taken into consideration.
F2 ……………（4.10）
a
c
F1＋
F2 ……………（4.11）
b
c+d
where,
FrA：Radial load on bearing A, N {kgf}
FrB：Radial load on bearing B, N {kgf}
F1, F2：Radial load on shaft, N {kgf}
If directions of radial load differ, the vector sum of each
respective load must be determined.
Kr＝f b・Kt…（4.9）
where,
Kr：Sprocket or pulley radial load, N {kgf}
a
f b：Chain or belt factor (Table 4.4)
b
Bearing A
Bearing B
FrA
FrB
Table. 4.4 chain or belt factor f b
Chain or belt type
fb
Chain (single)
1.2∼1.5
V-belt
1.5∼2.0
Timing belt
1.1∼1.3
Flat belt (w / tension pulley)
2.5∼3.0
Flat belt
3.0∼4.0
F!
F@
c
Fig. 4.7
se side
F1 Loo
Dp
Kr
F2 Tens
ion s
ide
Fig. 4.6 Chain / belt loads
A-23
d
●Bearing Load Calculation
(3) Linear fluctuating load
The mean load, Fm, can be approximated by formula
(4.14).
4.3 Mean load
The load on bearings used in machines under normal
circumstances will, in many cases, fluctuate according to
a fixed time period or planned operation schedule. The
load on bearings operating under such conditions can be
converted to a mean load (Fm), this is a load which gives
bearings the same life they would have under constant
operating conditions.
Fm＝
Fmin＋2Fmax
…（4.14）
3
F
(1) Fluctuating stepped load
The mean bearing load, Fm, for stepped loads is
calculated from formula (4.12). F1 , F2 ....... Fn are the
loads acting on the bearing; n1, n2.......nn and t1, t2.......
tn are the bearing speeds and operating times
respectively.
Fmax
Fm
Fmin
p
Σ
（Fi ni ti） 1/p
…………………（4.12）
Σ
（ni ti）〕
Fm＝
〔
t
where:
Fig. 4.10 Linear fluctuating load
For ball bearings
For roller bearings
p＝3
p＝10/3
(4) Sinusoidal fluctuating load
The mean load, Fm, can be approximated by formulas
(4.15) and (4.16).
F
F1
F2
case (a)
case (b)
Fm
Fn
n1 t1
n2t2
Fm＝0.75 Fmax ………（4.15）
Fm＝0.65 Fmax ………（4.16）
F
nn tn
Fmax
Fig. 4.8 Stepped load
Fm
(2) Continuously fluctuating load
Where it is possible to express the function F(t) in
terms of load cycle to and time t, the mean load is
found by using formula (4.13).
Fm＝
〔
to
1
p
（t）d t
∫ F
to o
t
（a）
F
1/p
〕………………（4.13）
Fmax
where:
p＝3
p＝10/3
For ball bearings
For roller bearings
Fm
（b）
F
Fig. 4.11 Sinusoidal variable load
F(t)
Fm
0
to
2to
t
Fig. 4.9 Load that fluctuated as function of time
A-24
t
●Bearing Load Calculation
where,
4.4 Equivalent load
Por：Static equivalent radial load, N {kgf}
Fr ：Actual radial load, N {kgf}
Fa ：Actual axial load, N {kgf}
Xo ：Static radial load factor
Yo ：Static axial load factor
The values for Xo and Yo are given in the respective
bearing tables.
4.4.1 Dynamic equivalent load
When both dynamic radial loads and dynamic axial
loads act on a bearing at the same time, the hypothetical
load acting on the center of the bearing which gives the
bearings the same life as if they had only a radial load or
only an axial load is called the dynamic equivalent load.
(2) Static equivalent axial load
For spherical thrust roller bearings the static equivalent
axial load is expressed by formula (4.21).
Poa＝Fa＋2.7Fr…（4.21）
where,
Poa：Static equivalent axial load, N {kgf}
Fa ：Actual axial load, N {kgf}
Fr ：Actual radial load, N {kgf}
Provided that Fr / Fa ≦ 0.55 only.
For radial bearings, this load is expressed as pure
radial load and is called the dynamic equivalent radial
load. For thrust bearings, it is expressed as pure axial
load, and is called the dynamic equivalent axial load.
(1) Dynamic equivalent radial load
The dynamic equivalent radial load is expressed by
formula (4.17).
Pr＝XFr＋YFa………………（4.17）
where,
Pr：Dynamic equivalent radial load, N {kgf}
Fr：Actual radial load, N {kgf}
Fa：Actual axial load, N {kgf}
X ：Radial load factor
Y ：Axial load factor
The values for X and Y are listed in the bearing tables.
4.4.3 Load calculation for angular contact ball
bearings and tapered roller bearings
For angular contact ball bearings and tapered roller
bearings the pressure cone apex (load center) is located
as shown in Fig. 4.12, and their values are listed in the
bearing tables.
When radial loads act on these types of bearings the
component force is induced in the axial direction. For this
reason, these bearings are used in pairs. For load
calculation this component force must be taken into
consideration and is expressed by formula (4.22).
(2) Dynamic equivalent axial load
As a rule, standard thrust bearings with a contact angle
of 90˚ cannot carry radial loads. However, self-aligning
thrust roller bearings can accept some radial load. The
dynamic equivalent axial load for these bearings is
given in formula (4.18).
Fa ＝
Pa＝Fa＋1.2Fr………………（4.18）
where,
Pa：Dynamic equivalent axial load, N {kgf}
Fa：Actual axial load, N {kgf}
Fr ：Actual radial load, N {kgf}
Provided that Fr / Fa ≦ 0.55 only.
0.5Fr
Y …………………（4.22）
where,
Fa: Axial component force, N {kgf}
Fr: Radial load, N {kgf}
Y: Axial load factor
The dynamic equivalent radial loads for these bearing
pairs are given in Table 4.5.
4.4.2 Static equivalent load
The static equivalent load is a hypothetical load which
would cause the same total permanent deformation at the
most heavily stressed contact point between the rolling
elements and the raceway as under actual load
conditions; that is when both static radial loads and static
axial loads are simultaneously applied to the bearing.
α
α
Fa
For radial bearings this hypothetical load refers to pure
radial loads, and for thrust bearings it refers to pure centric
axial loads. These loads are designated static equivalent
radial loads and static equivalent axial loads respectively.
Load center
Fa
Fr
Load center
Fr
(1) Static equivalent radial load
For radial bearings the static equivalent radial load can
be found by using formula (4.19) or (4.20). The greater
of the two resultant values is always taken for Por.
Por＝Xo Fr＋Yo Fa… （4.19）
Por＝Fr …………… （4.20）
a
a
Fig. 4.12 Pressure cone apex and axial component force
A-25
●Bearing Load Calculation
Table 4.5 Bearing arrangement and dynamic equivalent load
Bearing arrangement
Rear
Brg1
Brg2
0.5Fr1 0.5Fr2
≦
＋ Fa
Y2
Y1
Fa
Fr 1
Front
Brg2
Brg1
Fr1
Fa2＝ 0.5Fr1 − Fa
Y1
Fr 2
Brg1
0.5Fr2 0.5Fr1
＞
＋ Fa
Y1
Y2
Fa
Pr2＝XFr2＋Y2 0.5Fr1 − Fa
Y1
Pr1＝Fr1
Fa
Brg2
Pr1＝XFr1＋Y1 0.5Fr2 ＋ Fa
Y2
Pr1＝Fr1
0.5Fr1 0.5Fr2
＞
＋ Fa
Y2
Y1
Brg2
Fr 1
Dynamic equivalent radial load
Pr2＝Fr2
0.5Fr2 0.5Fr1
≦
＋ Fa
Y1
Y2
Fr 2
Fa1＝ 0.5Fr2 ＋ Fa
Y2
Brg1
Fa
Front
Axial load
Fr2
Fr 2
Rear
Load condition
Fa2＝ 0.5Fr1 ＋ Fa
Y1
Pr2＝XFr2＋Y2 0.5Fr1 ＋ Fa
Y1
Fa1＝ 0.5Fr2 − Fa
Y2
Pr1＝XFr1＋Y1 0.5Fr2 − Fa
Y2
Pr2＝Fr2
Fr 1
Note 1: Applies when preload is zero.
2: Radial forces in the opposite direction to the arrow in the above illustration are also regarded as positive.
A-26
●Bearing Load Calculation
4.5 Bearing rating life and load calculation
examples
Therefore, with life factor fh = 2.46, from Fig. 3.1 the
rated life, L10h, is approximately 7,500 hours.
――――――――――――――――――――――――――――――――――――
In the examples given in this section, for the purpose of
calculation, all hypothetical load factors as well as all
calculated load factors may be presumed to be included
in the resultant load values.
(Example 3)
Determine the optimum model number for a
cylindrical roller bearing operating at the rotational
speed n = 450 min-1, with a radial load Fr of 200 kN
{20,400kgf}, and which must have a life (L10h) of over
20,000 hours.
――――――――――――――――――――――――――――――――――――
(Example 1)
What is the rating life in hours of operation (L10h)
for deep groove ball bearing 6208 operating at
rotational speed n = 650 min-1, with a radial load Fr of
3.2 kN {326 kgf} ?
――――――――――――――――――――――――――――――――――――
From Fig. 3.1 the life factor fh = 3.02 (L10h at 20,000),
and the speed factor fn = 0.46 (n = 450 min-1). To find the
required basic dynamic load rating, Cr, formula (3.1) is
used.
――――――――――――――――――――――――――――――――――――
From formula (4.17) the dynamic equivalent radial load:
fh
3.02
Pr ＝
×200
0.46
fn
＝1,313kN｛134,000kgf｝
Cr＝
Pr＝Fr＝3.2kN｛326kgf｝
Basic dynamic load rating Cr for bearing 6208 given on
page B-12 is 29.1 kN {2970 kgf}, ball bearing speed factor
fn relative to rotational speed n = 650 min-1 from Fig. 3.1
is fn = 0.37. Thus life factor fh from formula (3.5) is:
f h＝fn
From page B-106, the smallest bearing that fulfills all
the requirements is NU2336 (Cr = 1,380 kN {141,000kgf}).
29.1
Cr
＝0.37×
＝3.36
3.2
Pr
Therefore, with fh = 3.36 from Fig. 3.1 the rated life, L10h,
is approximately 19,000 hours.
――――――――――――――――――――――――――――――――――――
(Example 2)
What is the life rating L10h for the same bearing and
conditions as in Example 1, but with an additional
axial load Fa of 1.8 kN {184 kgf} ?
――――――――――――――――――――――――――――――――――――
To find the dynamic equivalent radial load value for Pr,
the radial load factor X and axial load factor Y are used.
Basic static load rating Cor for bearing 6208 given on page
B-12 is 17.8 kN {1820 kgf} and fo is 14.0. Therefore:
14×1.8
fo・Fa
＝
＝ 1.42
17.8
Cor
Calculating by the proportional interpolation method
given on page B-13, e = 0.30.
For the operating radial load and axial load:
1.8
Fa
＝
＝0.56＞e=0.30
3.2
Fr
From page B-13 X = 0.56 and Y = 1.44, and from
formula (4.17) the equivalent radial load, Pr, is:
Pr＝XFr＋YFa＝0.56×3.2＋1.43×1.8
＝4.38
kN｛447kgf｝
From Fig. 3.1 and formula (3.1) the life factor, fh, is:
f h＝fn
29.1
Cr
＝ 0.37×
＝ 2.46
4.38
Pr
A-27
●Bearing Load Calculation
Therefore: a2 ＝ 1.4（4T-tapered roller bearings shown in
B-144)
――――――――――――――――――――――――――――――――――――
(Example 4)
The spur gear shown in Fig. 4.13 (pitch diameter Dp =
150 mm, pressure angleα= 20˚) is supported by a pair
of tapered roller bearings, 4T-32206 (Cr = 54.5 kN
{5,600 kgf}) and 4T-32205 (Cr = 42 kN {4300 kfg}).
Find rating life for each bearing when gear transfer
power H = 150 kW and rotational speed n = 2,000 min-1.
Lh1 ＝13,200×a2
＝13,200×1.4
＝18,480 hour
Lh2 ＝11,600×a2
＝11,600×1.4
＝16,240 hour
――――――――――――――――――――――――――――――――――――
The combined bearing life, Lh, from formula (3.3) is:
Bearings1
(4T-32206)
Bearings2
(4T-32205)
1
Lh＝
〔 L1
150
h1
e
＋
1
e
Lh2
＝
1/e
〕
1
1
1
〔 18,480
9/8 ＋
16,2409/8
70
＝9,330 hour
100
170
Fig. 4.13 Spur gear diagram
The gear load from formulas (4.2), (4.3a) and (4.4) is:
6
19.1×10 ・H
19,100×150
＝
Dp・n
150×2,000
＝9.55kN｛974kgf｝
Kt ＝
Ks ＝Kt・tanα＝9.55×tan20˚
＝3.48kN｛355kgf｝
Kr ＝√Kt2 ＋Ks2 ＝√9.552 ＋3.482
＝10.16kN｛1,040kgf｝
The radial loads for bearings ! and @ are:
Fr1 ＝
100
100
Kr ＝
×10.16＝5.98kN｛610kgf｝
170
170
Fr2 ＝
70
70
Kr＝
×10.16＝4.18kN｛426kgf｝
170
170
0.5Fr2
0.5Fr1
＝1.87＞
＝1.25
Y2
Y1
From Table 4.5, equivalent radial load:
Pr1 ＝Fr1 ＝5.98kN｛610kgf｝
0.5Fr1
Y1
＝0.4×4.18＋1.67×1.87
Pr2 ＝XFr2 ＋Y2
＝4.79kN｛489kgf｝
From formula (3.5) and Fig. 3.1 the life factor, fh, for
each bearing is:
f h1＝ fn
Cr1
＝0.293×54.5／5.98＝2.67
Pr1
f h2＝ fn
Cr2
＝0.293×42.0／4.79＝2.57
Pr2
A-28
8/9
〕
●Bearing Load Calculation
――――――――――――――――――――――――――――――――――――
――――――――――――――――――――――――――――――――――――
(Example 5)
Find the mean load for spherical roller bearing 23932
(La = 320 kN {33,000 kgf}) when operated under the
fluctuating conditions shown in Table 4.6.
(Example 6)
Find the threshold values for rating life time and
allowable axial load when cylindrical roller bearing
NUP312 is used under the following conditions:
Provided that intermittent axial load and oil lubricant.
――――――――――――――――――――――――――――――――――――
Radial load Fr＝10kN｛1,020kgf｝
Table 4.6
Condition Operating
time
No.
φi
i
％
Radial load
Fri
kN｛ kgf ｝
Axial load
Fai
kN｛ kgf ｝
Revolution
ni
min-1
1
5
10｛ 1020 ｝
2｛ 204 ｝
1200
2
10
12｛ 1220 ｝
4｛ 408 ｝
1000
3
60
20｛ 2040 ｝
6｛ 612 ｝
800
4
15
25｛ 2550 ｝
7｛ 714 ｝
600
5
10
30｛ 3060 ｝
10｛ 1020 ｝
400
Rotational speed n ＝2,000 min-1
――――――――――――――――――――――――――――――――――――
Radial load is:
Pr＝Fr＝10kN｛1,020kgf｝
The speed factor of cylindrical roller bearing, fn , at n＝
2,000 min-1, from Table 3.1
fn ＝
〔
33.3
2,000
3/10
〕 ＝0.293
The life factor, f h, from formula (3.4)
The equivalent radial load, Pr, for each operating condition
is found by using formula (4.17) and shown in Table 4.7.
Because all the values for Fri and Fai from the bearing tables
are greater than Fa / Fr > e＝ 0.18, X ＝ 0.67, Y2 ＝ 5.50.
124
＝3.63
10
Therefore the basic rated life, L10h , from Table 3.1
f h＝0.293×
10/3
L10h ＝500×3.63
Pri ＝ XFri ＋Y2 Fai ＝ 0.67Fri ＋ 5.50Fai
From formula (4.12) the mean load, Fm, is:
And next, allowable axial load of cylindrical roller bearing is
shown in page B-93.
10/3
・ni・φi）3/10
〕 ＝48.1kN｛4,906kgf｝
i φi ）
Σ
（n・
Σ
（Pri
Fm =
〔
In formula (1) on page B-93, based on NUP312 from Table
4 on page B-93, k = 0.065.
Table 4.7
Condition No.
i
Equivalent radial load. Pri
kN｛ kgf ｝
1
2
3
4
5
17.7｛ 1805 ｝
30.0｛ 3060 ｝
46.4｛ 4733 ｝
55.3｛ 5641 ｝
75.1｛ 7660 ｝
≒37,000
（60＋130）
/2＝95mm，n＝2,000 min-1
d p＝
Take into consideration that intermittent axial load.
4
4
dp・n×10 ＝19×10
4
In Fig. 1 on page B-93, dp・n = 19×10 . In the case of
intermittent axial load, allowable surface pressure at the lip Pt
＝ 40 MPa.
Therefore the allowable axial load, Pt, following
2
Pz ＝0.065×60 ×40＝9,360N｛954kgf｝
Based on Table 4 of page B-93, it is within the limits of
Fa max ＜ 0.4×10,000 = 4,000 N. Therefore Pt ＜ 4,000 N
{408 kgf}.
A-29
●Boundary Dimensions and Bearing Number Codes
5. Boundary Dimensions and Bearing Number Codes
bearing internal construction dimensions are not covered by
these dimensions.
For metric series rolling bearings there are 90 standardized
bore diameters (d) ranging in size from 0.6mm - 2,500mm.
Outer diameter dimensions (D) for radial bearings with
standardized bore diameter dimensions are covered in the
"diameter series;" their corresponding width dimensions (B)
are covered in the "width series." For thrust bearings there is
no width series; instead, these dimensions are covered in the
"height series." The combination of all these series is known
as the "dimension series." All series numbers are shown in
Table 5.1.
Although many rolling bearing dimensions are
standardized, and have been listed here for purposes of
5.1 Boundary dimensions
A rolling bearing's major dimensions, known as "boundary
dimensions," are shown in Figs. 5.1 - 5.3. To facilitate
international bearing interchangeability and economical
bearing production, bearing boundary dimensions have been
standardized by the International Standards Organization
(ISO). In Japan, rolling bearing boundary dimensions are
regulated by Japanese Industrial Standards (JIS B 1512).
Those boundary dimensions which have been
standardized include: bearing bore diameter, outside
diameter, width/height, and chamfer dimensions - all
important dimensions when considering the compatibility of
shafts, bearings, and housings. However, as a general rule,
T
B
r
r
r1
C
φd1
r1
r
r
r
φd
r
r
r
r
r
r
r
φd φD
T
r
φd φD
E
B
φD
α
Fig. 5.1 Radial bearings
(excluding tapered roller bearings)
r
φD1
Fig. 5.2 Tapered roller bearings
Fig. 5.3 Single direction thrust bearings
Table 5.1 Dimension series numbers
Dimension series
Diameter series
(outer diameter dimensions)
Radial bearings
(excluding tapered roller
bearings)
Width series
(width dimensions)
Height series Reference
(height dimensions) diagram
number 7, 8, 9, 0, 1, 2, 3, 4 8, 0, 1, 2, 3, 4, 5, 6
dimensions small
number
Tapered roller bearings
large small
9, 0, 1, 2, 3
dimensions small
number
Thrust bearings
0, 1, 2, 3
large
small
Diagram 5.5
large
0, 1, 2, 3, 4
dimensions small
Diagram 5.4
large
7, 9, 1, 2
large
small
Diagram 5.6
large
Dimension Diameter
series
series
0
1
2
3
4
5
6
01 2 3
4
4
3
70
71
72
73
7
60
69
68
58
59
50
41
42
48
49
40
33
24
23
38
39
30
31
32
21
29
20
22
74
28
04
82
Dimension
series
18
19 10
12 11
13
83
2
1
0
9
8
08
09 00
01 02
03
Diameter
series
8
Height series
Width
series
90
92
91
93
9
94
10
11
12
Fig. 5.4 Dimension series for radial bearings
(excluding tapered roller bearings; diameter series 7 has been omitted)
1
13
14
3
Diameter
series
2
1
0
9
22
2
Fig. 5.5 Dimension series for tapered roller bearings
A-30
2
1
0
3
0
2
3
2
2
Width
series
3
23
24
Fig. 5.6 Dimension series for
thrust bearings
(excluding diameter series 5)
●Boundary Dimensions and Bearing Number Codes
future standardization, there are many standard bearing
dimensions which are not presently manufactured.
"basic number" followed by "supplementary codes." The
makeup and order of bearing numbers is shown in Table 5.2.
Boundary dimensions for radial bearings (excluding
tapered roller bearings) are shown in the attached tables.
The basic number indicates general information about a
bearing, such as its fundamental type, boundary dimensions,
series number, bore diameter code and contact angle. The
supplementary codes derive from prefixes and suffixes which
indicate a bearing's tolerances, internal clearances, and
related specifications.
5.2 Bearing numbers
Rolling bearing part numbers indicate bearing type,
dimensions, tolerances, internal construction, and other
related specifications. Bearing numbers are comprised of a
(Bearing number examples)
6205ZZC3／2A
23034BD1
Lubrication hole/lubrication groove
(when outer diameter is less than 320mm)
Type B
Nominal bore diameter 170mm
Dimension series 0
Width series 3
Spherical roller bearing
Shell Alvania 2 grease
Radial internal clearance C3
Shielded (both)
Nominal bore diameter 25mm
Diameter series 2
Deep groove ball bearing
240／750BK30
7012CDB／GMP4
Bore diameter: tapered inner
ring bore, standard taper ratio 1:30
Tolerances JIS Class 4
Medium preload
Back-to-back duplex arrangement
Contact angle 15°
Nominal bore diameter 60mm
Dimension series 0
Angular contact ball bearing
NU320G1C3
Type B
Bore diameter 750mm
Dimension series 0
Width series 4
Spherical roller bearing
51120L1P5
Radial internal clearance C3
High strength machined brass
rivetless cage with square holes
Tolerances JIS Class 5
High strength, machined
brass cage
Nominal bore diameter 100mm
Dimension series 3
Cylindrical roller bearing NU type
Nominal bore diameter 100mm
Diameter series 1
Height series 1
Thrust ball bearing
4T−30208
Nominal bore diameter 40mm
Diameter series 2
Width series 0
Tapered roller bearing
Spec. 4T
A-31
●Boundary Dimensions and Bearing Number Codes
Table 5.2 Bearing number composition and arrangement
Basic number
Supplementary prefix code
Special application/material/
heat treatment code
4T:
ET:
4T tapered roller bearings
ET tapered roller bearings
ETA: ET+special heat treatment
E:
Bearing using case
hardened steel
EA:
Bearing made of
nitride-treated case
hardened steel
TA:
Bearing made of
nitride-treated bearing
steel (SUJ3)
TM:
Bearing made of special
heat-treated bearing
steel (SUJ3)
F:
Stainless steel bearings
N:
High speed steel bearings
M:
Plated bearings
5S:
Ceramic rolling element
bearings
HL:
HL roller bearings
ECO: ECO-Top tapered roller
bearings
LH:
Bearing made of bearing
steel that provides long
life at high temperatures
(STJ2), which is treated to
stabilize dimensions at
temperatures up to 250°C
TS3:
Dimension stabilized
bearing for high
temperature use
(to 200°C)
TS4:
Dimension stabilized
bearing for high
temperature use
(to 250°C)
Bearing series
Bearing
series code
Dimension series code
1
Width/height series
Diameter series
Deep groove ball bearings (type code 6)
68
69
60
62
63
(1)
(1)
(1)
(0)
(0)
8
9
0
2
3
Angular contact ball bearings (type code 7)
78
79
70
72
73
(1)
(1)
(1)
(0)
(0)
8
9
0
2
3
Self-aligning ball bearings (type code 1,2)
12
13
22
23
(0)
(0)
(2)
(2)
2
3
2
3
Cylindrical roller bearings (type code NU, N, NF, NNU, NN, etc.)
NU10
NU2
NU22
NU3
NU23
NU4
NNU49
NN30
1
(0)
2
(0)
2
(0)
4
3
0
2
2
3
3
4
9
0
Tapered roller bearings (type code 3)
329X
320X
302
322
303
303D
313X
323
2
2
0
2
0
0
1
2
9
0
2
2
3
3
3
3
Bore diameter code
bore
Code
diameter mm
/0.6
/1.5
/2.5
0.6
1.5
2.5
1
1
⋮
⋮
9
9
00
01
02
03
10
12
15
17
/22
/28
/32
22
28
32
04
05
06
20
25
30
⋮
⋮
88
92
96
440
460
480
/500
/530
/560
500
530
560
/2,360
/2,500
2,360
2,500
Contact angle code
1
Code
Contact angle
Angular contact ball bearings
（A） Standard contact angle 30˚
B
Standard contact angle 40˚
Standard contact angle 15˚
C
Tapered roller bearings
（B） Contact angle over 10˚
C
to/including 17˚
D
Contact angle over 17˚
to/including 24˚
Contact angle over 24˚
to/including 32˚
⋮
Spherical roller bearings (type code 2)
239
230
240
231
241
222
232
213
223
3
3
4
3
4
2
3
1
2
9
0
0
1
1
2
2
3
3
Single direction thrust ball bearings (type code 5)
511
512
513
514
1
1
1
1
1
2
3
4
Cylindrical roller thrust bearings (type code 8)
811
812
893
1
1
9
1
2
3
Spherical thrust roller bearings (type code 2)
292
9
2
293
9
3
294
9
4
1 Codes in ( ) are not shown in nominal numbers.
Note: Please consult NTN Engineering concerning bearing series codes, and supplementary prefix/suffix codes not listed in the above table.
A-32
●Boundary Dimensions and Bearing Number Codes
Supplementary suffix codes
Internal
modifications code
U:
Internationally
interchangeable
tapered roller
bearings
R:
Noninternationally
interchangeable
tapered roller
bearings
ST:
Low torque
tapered roller
bearings
HT:
High axial load
use cylindrical
roller bearings
1
cage code
Seal /
Shield code
External
configuration code
Duplex
Internal clearance
arrangement code
/preload code
L1:
High strength,
machined brass
cage
LLB:
Synthetic rubber
seal (noncontact type)
K:
Tapered inner
ring bore,
standard taper
ratio 1:12
DB:
Back-to-back
arrangement
F1:
Machined
carbon steel
cage
G1:
High strength
machined brass
rivetless
cage with
square holes,
G2:
Pin type cage
J:
Pressed steel
cage
T2:
Plastic mold
cage
LLU:
Synthetic rubber K30:
seal
Tapered inner
(contact type)
ring bore,
standard taper
LLH:
ratio 1:30
Synthetic rubber
seal
N:
(low-torque type) With snap ring
groove
ZZ:
Steel shield
NR:
With snap ring
D:
With oil hole
D1:
Lubrication
hole/lubrication
groove
DF:
Face-to-face
arrangement
DT:
Tandem
arrangement
D2:
Two matched,
paired bearings
C2:
Internal
clearance less
than normal
(CN):
Normal clearance
C3:
Internal
clearance
greater than
normal
C4:
Internal
G: Flush ground clearance
greater than C3
＋α:
Spacer
C5:
(α= spacer’s
Internal
standard width
clearance
dimensions)
greater than C4
CM:
Radial internal
clearance for
electric motor
use
/GL:
Light preload
/GN:
Normal preload
/GM:
Medium preload
/GH:
Heavy preload
A-33
Tolerance code Lubrication code
P6:
JIS Class 6
P5:
JIS Class 5
P4:
JIS Class 4
P2:
JIS Class 2
2:
ABMA
Class 2
3:
ABMA
Class 3
0:
ABMA
Class 0
00:
ABMA
Class 00
/2A:
Shell Alvania 2
grease
/3A:
Shell Alvania 3
grease
/8A:
Shell Alvania
EP2 grease
/5K:
MULTEMP SRL
/LX11:
Barierta JFE552
/LP03:
Thermosetting
grease
(grease for
poly-lube
bearings)
●Bearing Tolerances
6. Bearing Tolerances
Running accuracy
Running accuracy constitutes the acceptable values for
inner and outer ring radial runout and axial runout, inner
ring side runout, and outer ring outer diameter runout.
Allowable rolling bearing tolerances have been
established according to precision classes. Bearing
precision is stipulated as JIS class 6, class 5, class 4, or
class 2, with precision rising from ordinary precision
indicated by class 0.
Table 6.1 indicates which standards and precision
classes are applicable to the major bearing types. Table
6.2 shows a relative comparison between JIS B 1514
precision class standards and other standards. For greater
detail on allowable limitations and values, refer to Tables
6.3 - 6.9. Allowable values for chamfer dimensions are
shown in Table 6.10, and allowable limitations and values
for radial bearing inner ring tapered bores are shown in
Table 6.11.
6.1 Dimensional accuracy and running accuracy
Bearing “tolerances” or dimensional accuracy and
running accuracy, are regulated by ISO and JIS B 1514
standards (rolling bearing tolerances). For dimensional
accuracy, these standards prescribe the tolerances
necessary when installing bearings on shafts or in
housings. Running accuracy is defined as the allowable
limits for bearing runout during operation.
Dimensional accuracy
Dimensional accuracy constitutes the acceptable values
for bore diameter, outer diameter, assembled bearing
width, and bore diameter uniformity as seen in chamfer
dimensions, allowable inner ring tapered bore deviation
and shape error. Also included are, average bore diameter
variation, outer diameter variation, average outer diameter
unevenness, as well as raceway width and height variation
(for thrust bearings).
Table 6.1 Bearing types and applicable tolerance
Bearing type
Applicable standard
Tolerance table
Tolerance class
Deep groove ball bearings
class 0
class 6
class 5
class 4
class 2
Angular contact ball bearings
class 0
class 6
class 5
class 4
class 2
ー
ー
Self-aligning ball bearings
class 0
ー
ー
class 0
class 6
class 5
class 4 class 2
Needle roller bearings
class 0
class 6
class 5
class 4
ー
Spherical roller bearings
class 0
ー
ー
ー
ー
JIS B 1514
(ISO492)
Cylindrical roller bearigns
Table 6.3
metric
JIS B 1514
class 0,6X
class 6
class 5
class 5
ー
Table 6.4
Inch
ANSI/ABMA Std.19
class 4
class 2
class 3
class 0
class 00
Table 6.5
J series
ANSI/ABMA Std.19.1
class K
class N
class C
class B
class A
Table 6.6
class 6
class 5
class 4
ー
Table 6.7
Spherical roller thrust bearings
JIS B 1514
(ISO199)
class 0
class 0
ー
ー
ー
ー
Table 6.8
Double direction angular contact thrust ball bearings
NTN standard
ー
class 5
class 4
ー
Table 6.9
Tapered
roller
bearings
Thrust ball bearings
ー
Table 6.2 Comparison of tolerance classifications of national standards
Standard
Japanese industrial
standard (JIS)
International Organization
for Standardization (ISO)
Applicable standerd
Tolerance Class
Class 0,6X
Class 6
Class 5
Class 4
Class 2
All type
ISO 492
Normal
class
Class 6X
Class 6
Class 5
Class 4
Class 2
Radial bearings
ISO 199
Normal
Class
Class 6
Class 5
Class 4
ー
ISO 578
Class 4
ー
Class 3
Class 0 Class 00 Tapered roller bearings (Inch series)
ー
ー
Class 5A Class 4A
P0
P6
JIS B 1514
ISO 1224
Deutsches Institut
fur Normung(DIN)
American National
Standards Institute (ANSI)
American Bearing
Manufacturer's Association
(ABMA)
Bearing Types
DIN 620
1
P5
P4
Thrust ball bearings
ー
Precision instrument bearings
P2
All type
ABEC-3 ABEC-5
ABEC-7 ABEC-9
RBEC-3 RBEC-5
Radial bearings
(Except tapered roller bearings)
Class K
Class N Class C Class B
Tapered roller bearings (Metric series)
Class 4
Class 2
ANSI/ABMA Std.20
ABEC-1
RBEC-1
ANSI/ABMA Std.19.1
ANSI/ABMA Std.19
Class 3
Class 0 Class 00 Tapered roller bearings (Inch series)
1 "ABEC" is applied for ball bearings and "RBEC" for roller bearings.
Notes 1: JIS B 1514, ISO 492 and 199, and DIN 620 have the same specification level.
2: The tolerance and allowance of JIS B 1514 are a little different from those of ABMA standards.
A-35
Class A
●Bearing Tolerances
Table 6.3 Tolerance of radial bearings (Except tapered roller bearings)
Table 6.3 (1) Inner rings
Nominal
bore
diameter
Vdp
∆dmp
d
Bore diameter variation
Dimensional tolerance of mean
bore diameter within plane
diameter series 9
mm
class 0
over
incl.
high
class 6
class 5
class 4
low high
1
class 2
1
diameter series 0.1
low high
low high
0.6 4
2.5
10
2.5
10
18
0
0
0
-8
-8
-8
0
0
0
-7
-7
-7
0
0
0
-5
-5
-5
0
0
0
-4
-4
-4
0
0
0
-2.5
-2.5
-2.5
10
10
10
9
9
9
5
5
5
4 2.5
4 2.5
4 2.5
18
30
50
30
50
80
0
0
0
-10
-12
-15
0
0
0
-8
-10
-12
0
0
0
-6
-8
-9
0
0
0
-5
-6
-7
0
0
0
-2.5
-2.5
-4
13 10
15 13
19 15
6
8
9
5 2.5
6 2.5
7 4
80
120
150
120
150
180
0
0
0
-20
-25
-25
0
0
0
-15
-18
-18
0
0
0
-10
-13
-13
0
0
0
-8
-10
-10
0
0
0
-5
-7
-7
180
250
315
250
315
400
0
0
0
-30
-35
-40
0
0
0
-22
-25
-30
0
0
0
-15
-18
-23
0
ー
ー
-12
ー
ー
0
ー
ー
400
500
630
500
630
800
0
0
0
-45
-50
-75
0
0
ー
-35
-40
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
800
1 000
1 250
1 600
1 000
1 250
1 600
2 000
0
0
0
0
-100
-125
-160
-200
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
low high
diameter series 2.3.4
class class class class class class class class class class class class class class class
0
6
5
4
2
0
6
5
4
2
0
6
5
4
2
max
low
max
max
7
7
7
4
4
4
3
3
3
2.5
2.5
2.5
6
6
6
5
5
5
4
4
4
3
3
3
2.5
2.5
2.5
10 8
12 10
19 15
5
6
7
4
5
5
2.5 8
2.5 9
4
11
6
8
9
5
6
7
4
5
5
2.5
2.5
4
25 19 10 8 5
31 23 13 10 7
31 23 13 10 7
25 19 8
31 23 10
31 23 10
6
8
8
5
7
7
15 11 8
19 14 10
19 14 10
6
8
8
5
7
7
-8
ー
ー
38 28 15 12 8
44 31 18 ー ー
50 38 23 ー ー
38 28 12 9 8
44 31 14 ー ー
50 38 18 ー ー
23 17 12 9 8
26 19 14 ー ー
30 23 18 ー ー
ー
ー
ー
ー
ー
ー
56 44 ー ー ー
63 50 ー ー ー
ー ー ー ー ー
56 44 ー ー ー
63 50 ー ー ー
ー ー ー ー ー
34 26 ー ー ー
38 30 ー ー ー
ー ー ー ー ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
8
8
8
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
1 The dimensional difference ∆ds of bore diameter to applied for class 4 and 2 is the same as the tolerance of dimentional difference ∆dmp of average bore diameter.
However, the dimensional difference is applied to diameter series 0, 1, 2, 3 and 4 against Class 4, and to all the diameter series against Class 2.
Table 6.3 (2) Outer rings
Nominal
outside
diameter
open type
diameter series 9
mm
class 0
over
VDp
∆Dmp
D
Outside diameter variation 6
Dimensional tolerance of mean outside
diameter within plane
class 6
class 5
class 4
5
class 2
5
incl.
high
6
18
30
0
0
0
-8
-8
-9
0
0
0
-7
-7
-8
0
0
0
-5
-5
-6
0
0
0
-4
-4
-5
0
0
0
-2.5
-2.5
-4
10 9
10 9
12 10
30
50
80
50
80
120
0
0
0
-11
-13
-15
0
0
0
-9
-11
-13
0
0
0
-7
-9
-10
0
0
0
-6
-7
-8
0
0
0
-4
-4
-5
14 11 7
16 14 9
19 16 10
120
150
180
150
180
250
0
0
0
-18
-25
-30
0
0
0
-15
-18
-20
0
0
0
-11
-13
-15
0
0
0
-9
-10
-11
0
0
0
-5
-7
-8
250
315
400
315
400
500
0
0
0
-35
-40
-45
0
0
0
-25
-28
-33
0
0
0
-18
-20
-23
0
0
ー
-13
-15
ー
0 -8
0 -10
ー ー
500
630
800
630
800
1 000
0
0
0
-50
-75
-100
0
0
0
-38
-45
-60
0
0
ー
-28
-35
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
1 000
1 250
1 600
2 000
1 250
1 600
2 000
2 500
0
0
0
0
-125
-160
-200
-250
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
2.5
6
18
8
low high
low high
low high
low high
diameter series 0.1
diameter series 2.3.4
class class class class class class class class class class class class class class class
0
6
5
4
2
0
6
5
4
2
0
6
5
4
2
max
low
5
5
6
max
4 2.5
4 2.5
5 4
7
7
8
4
4
5
3 2.5
3 2.5
4 4
11 9
13 11
19 16
5
7
8
23 19 11 9 5
31 23 13 10 7
38 25 15 11 8
23 19 8
31 23 10
38 25 11
44 31 18 13 8
50 35 20 15 10
56 41 23 ー ー
44 31 14 10 8
50 35 15 11 10
56 41 17 ー ー
6 4
7 4
8 5
8
8
9
max
5
5
6
4
4
5
3
3
4
2.5
2.5
4
5 4
5 4
6 5
8 7
10 8
11 10
5
7
8
5
5
6
4
4
5
7 5
8 7
8 8
14 11 8
19 14 10
23 15 11
7
8
8
5
7
8
63 48 28 ー ー
63 48 21 ー
94 56 35 ー ー
94 56 26 ー
125 75 ー ー ー 125 75 ー ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
6
6
7
26 19 14 10 8
30 21 15 11 10
34 25 17 ー ー
ー
ー
ー
38 29 21 ー ー
55 34 26 ー ー
75 45 ー ー ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
5 The dimensional difference ∆Ds of outer diameter to be applied for classes 4 and 2 is the same as the tolerance of dimensional difference ∆Dmp of average outer
diameter. However, the dimensional difference is applied to diameter series 0, 1, 2, 3 and 4 against Class 4, and also to all the diameter series against Class 2.
A-36
ー
ー
ー
ー
●Bearing Tolerances
Unitμm
Mean bore diameter
variation
Inner ring
radial runout
Side runout
with bore
Vdmp
Kia
Sd
Inner ring
axial runout
Sia
Inner ring width deviation
VBs
2
normal
class class class class class
0
6
5
4
2
class class class class class
0
6
5
4
2
class class class
5
4
2
class class class
5
4
2
max
max
max
max
6
6
6
5
5
5
3 2
3 2
3 2
8
9
11
6
8
9
3 2.5 1.5
4 3 1.5
5 3.5 2
5 4
7 5
7 5
15 11
19 14
19 14
1.5
1.5
1.5
2.5
3.5
3.5
Inner ring width
variation
∆Bs
class 0,6
high
class 5,4
modified
3
class 2 class 0,6 class 5,4
low high low high low
class class class class class
0
6
5
4
2
high low high low
max
4 2.5 1.5
4 2.5 1.5
4 2.5 1.5
7
7
7
3 1.5
3 1.5
3 1.5
7
7
7
3
3
3
1.5
1.5
1.5
0
0
0
-40 0
-120 0
-120 0
-40 ー ー
-40 0 -250
-80 0 -250
0 -250
0 -250
0 -250
12 12 5 2.5 1.5
15 15 5 2.5 1.5
20 20 5 2.5 1.5
13 8
15 10
20 10
4 3
5 4
5 4
2.5
2.5
2.5
8
8
8
4 1.5
4 1.5
5 1.5
8
8
8
4
4
5
2.5
2.5
2.5
0
0
0
-120 0 -120 0 -120 0 -250
-120 0 -120 0 -120 0 -250
-150 0 -150 0 -150 0 -380
0 -250
0 -250
0 -250
20 20 5 2.5 1.5
20 20 5 3 1.5
25 25 6 4 1.5
25 13
30 18
30 18
6 5
8 6
8 6
2.5
2.5
5
9
10
10
5 2.5
6 2.5
6 4
9
10
10
5
7
7
2.5
2.5
5
0
0
0
-200 0 -200 0 -200 0 -380
-250 0 -250 0 -250 0 -500
-250 0 -250 0 -250 0 -500
0 -380
0 -380
0 -380
25 25 7 4
30 30 8 5
30 30 8 5
10
10
10
5
6
7
-40 0
-40 0
-80 0
2.5
2.5
4
23 17 8 6 4
26 19 9 ー ー
30 23 12 ー ー
40 20 10 8 5
50 25 13 ー ー
60 30 15 ー ー
11 7 5
13 ー ー
15 ー ー
13
15
20
8 5
ー ー
ー ー
0
0
0
-300 0 -300 0 -300 0 -500
-350 0 ー ー ー
0 -500
-400 0 ー ー ー
0 -630
0 -500
0 ー
0 ー
30 30 10 6 5
35 35 13 ー ー
40 40 15 ー ー
34 26 ー
38 30 ー
55 ー ー
ー
ー
ー
ー
ー
ー
65 35 ー
70 40 ー
80 ー ー
ー ー
ー ー
ー ー
ー
ー
ー
ー ー
ー ー
ー ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
0
0
0
-450 ー ー
-500 ー ー
ー ー ー
50 45 ー ー
60 50 ー ー
70 ー ー ー
ー ー
ー ー
ー ー
ー ー
ー
ー
ー
ー
ー 90 ー ー
ー 100 ー ー
ー 120 ー ー
ー 140 ー ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
0
0
0
0
75
94
120
150
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー ー
ー ー
ー ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
80
100
120
140
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
2 Applies to ball bearings such as deep groove ball bearings and angular ball bearings.
3 To be applied for individual raceway rings manufactured for combined bearing use.
4 Nominal bore diameter of bearings of 0.6 mm is included in this dimensional division.
Unit μm
Outside diameter
variation VDP 6
Sealed/shield
bearings
diameter series
2,3,4 0,1,2,3,4
class 0
class 6
max
10
10
12
9
9
10
16
20
26
Mean bore diameter
variation
VDmp
Outer ring radial runout Outside surface
inclination
Kea
Outside ring
axial runout
Sea 7
SD
Outer ring
width
deviation
Outer ring width
variation
VCs
∆Cs
class
0
class
6
class
5
class
4
class
2
class
0
class
6
8
8
9
max
6
6
7
class
5
class
4
class
2
class
5
max
class
4
class
2
class
5
max
class
4
class 0,6
class
2
all type
max
class
5
class
4
class
2
max
5 2.5 1.5
5 2.5 1.5
5 2.5 1.5
5
5
6
3
3
3
2
1.5
2
1.5
2.5 2
15
15
15
5
5
6
3
3
4
1.5
1.5
2.5
8
8
8
4
4
4
1.5
1.5
1.5
8
8
8
5
5
5
1.5
1.5
2.5
13
16
20
8 7
10 8
11 10
4
5
5
3
2
3.5 2
4
2.5
20 10 7
25 13 8
35 18 10
5
5
6
2.5
4
5
8
8
9
4
4
5
1.5
1.5
2.5
8
10
11
5
5
6
2.5
4
5
30
38
―
25
30
―
14 11
19 14
23 15
6
7
8
5
5
6
2.5
3.5
4
40 20 11 7
45 23 13 8
50 25 15 10
5
5
7
10
10
11
5
5
7
2.5
2.5
4
13
14
15
7
8
10
5
5
7
―
―
―
―
―
―
26 19 9
30 21 10
34 25 12
7
8
―
4
5
―
60 30 18 11
70 35 20 13
80 40 23 ―
7
8
―
13
13
15
8
10
―
5
7
―
18
20
23
10
13
―
7
8
―
11 7 5
13 8 7
15 ― ―
―
―
―
―
―
―
38 29 14
55 34 18
75 45 ―
―
―
―
―
―
―
100 50 25 ―
120 60 30 ―
140 75 ― ―
―
―
―
18
20
―
―
―
―
―
―
―
25
30
―
―
―
―
―
―
―
18 ― ―
20 ― ―
― ― ―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
160
190
220
250
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
6 To be applied in case snap rings are not installed on the bearings.
7 Applies to ball bearings such as deep groove ball bearings and angular ball bearings.
8 Nominal outer diameter of bearings of 2.5 mm is included in this dimensional division.
A-37
Depends on
tolerance of
∆Bs in relation
to d of same
bearing
Depends
on
tolerance
of ∆Bs in
relation to
d of same
bearing
5 2.5 1.5
6 3 1.5
8 4 2.5
8 5
8 5
10 7
―
―
―
―
2.5
2.5
4
―
―
―
―
●Bearing Tolerances
Table 6.4 Tolerance of tapered roller bearings (Metric series)
Table 6.4 (1) Inner rings
Nominal
bore
diameter
∆dmp
d
Bore diameter
variation
Dimensional tolerance of mean
bore diameter within plane
Mean bore diameter
variation
Vdp
Inner ring radial runout
Kia
Vdmp
Side
runout
with bore
Sd
mm
over incl.
1
class 0,6X
class 5,6
class 4
high low
high low
high low
class
0,6X
class
6
class
5
class
4
class
0,6X
class
6
max
class
5
class
4
class
0,6X
class
6
max
class
5
class
4
max
class class
5
4
max
10
18
30
18
30
50
0
0
0
-12
-12
-12
0
0
0
-7
-8
-10
0
0
0
-5
-6
-8
12
12
12
7
8
10
5
6
8
4
5
6
9
9
9
5
6
8
5
5
5
4
4
5
15
18
20
7
8
10
5
5
6
3
3
4
7
8
8
3
4
4
50
80
120
80
120
180
0
0
0
-15
-20
-25
0
0
0
-12
-15
-18
0
0
0
-9
-10
-13
15
20
25
12
15
18
9
11
14
7
8
10
11
15
19
9
11
14
6
8
9
5
5
7
25
30
35
10
13
18
7
8
11
4
5
6
8
9
10
5
5
6
180
250
315
250
315
400
0
0
0
-30
-35
-40
0
―
―
-22
―
―
0
―
―
-15
―
―
30
35
40
22
―
―
17
―
―
11
―
―
23
26
30
16
―
―
11
―
―
8
―
―
50
60
70
20
―
―
13
―
―
8
―
―
11
―
―
7
―
―
400
500
630
500
630
800
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
800 1,000
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
1 The dimensional difference ∆ds of bore diameter to be applied for class 4 is the same as the tolerance of dimensional difference ∆dmp of average bore diameter.
Table 6.4 (2) Outer rings
Nominal
outside
diameter
Dimensional tolerance of mean
outside diameter within plane
Outside diameter
variation
Mean bore diameter
variation
DDmp
VDp
VDmp
D
Outer ring radial runout
Kea
Outside
surface
inclination
SD
mm
class 0,6X
class 5,6
class 4
3
class
0,6X
class
6
class
5
class
4
class
0,6X
class
6
class
5
class
4
class
0,6X
class
6
class
5
class
4
2
class class
5
4
over
incl.
18
30
50
30
50
80
0
0
0
-12
-14
-16
0
0
0
-8
-9
-11
0
0
0
-6
-7
-9
12
14
16
8
9
11
6
7
8
5
5
7
9
11
12
6
7
8
5
5
6
4
5
5
18
20
25
9
10
13
6
7
8
4
5
5
8
8
8
4
4
4
80
120
150
120
150
180
0
0
0
-18
-20
-25
0
0
0
-13
-15
-18
0
0
0
-10
-11
-13
18
20
25
13
15
18
10
11
14
8
8
10
14
15
19
10
11
14
7
8
9
5
6
7
35
40
45
18
20
23
10
11
13
6
7
8
9
10
10
5
5
5
180
250
315
250
315
400
0
0
0
-30
-35
-40
0
0
0
-20
-25
-28
0
0
0
-15
-18
-20
30
35
40
20
25
28
15
19
22
11
14
15
23
26
30
15
19
21
10
13
14
8
9
10
50
60
70
25
30
35
15
18
20
10
11
13
11
13
13
7
8
10
400
500
500
630
0
0
-45
-50
―
―
―
―
―
―
―
―
45
50
―
―
―
―
―
―
34
38
―
―
―
―
―
―
80
100
―
―
―
―
―
―
―
―
―
―
high low
high low high low
max
max
max
max
2 Does not apply to bearings with flange.
3 The dimensional difference DDs of outside diameter to be applied for class 4 is the same as the tolerance of dimensional difference DDmp of average outside diameter.
A-38
●Bearing Tolerances
Unitμm
Inner ring width deviation
Inner ring
axial runout
Combination width
deviation of double
row bearings
Assembly width deviation of single-row
tapered roller bearings
∆Bs
∆Ts
∆B1s,
Sia
class 4
max
class 0,6
class 6X
class 4,5
high low
high low
class 0,6
class 6X
class 4,5
Combination width
deviation of 4-row
bearings
∆C1s
∆B2s,
class 0,6,5
∆C2s
class 0,6,5
high
low
high
low
high
low
high
low
high
low
high
low
3
4
4
0
0
0
-120
-120
-120
0
0
0
-50
-50
-50
0
0
0
-200
-200
-240
+200
+200
+200
0
0
0
+100
+100
+100
0
0
0
+200
+200
+200
-200
-200
-200
ー
ー
+240
ー
ー
-240
ー
ー
ー
ー
ー
ー
4
5
7
0
0
0
-150
-200
-250
0
0
0
-50
-50
-50
0
0
0
-300
-400
-500
+200
+200
+350
0
-200
-250
+100
+100
+150
0
0
0
+200
+200
+350
-200
-200
-250
+300
+400
+500
-300
-400
-500
ー
+500
+600
ー
-500
-600
8
ー
ー
0
0
0
-300
-350
-400
0
0
0
-50
-50
-50
0
ー
ー
-600
ー
ー
+350
+350
+400
-250
-250
-400
+150
+200
+200
0
0
0
+350
ー
ー
-250
ー
ー
+600
+700
+800
-600
-700
-800
+750
+900
+1 000
-750
-900
-1 000
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー ー
ー ー
ー ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
+900
+1 000
+1 500
-900
-1 000
-1 500
+1 200
+1 200
+1 500
-1 200
-1 200
-1 500
ー
ー
ー
ー ー
ー
ー
ー
ー
ー
ー
ー
ー
+1 500
-1 500
+1 500
-1 500
Unitμm
Outer ring axial
runout
Outer ring width deviation
∆Cs
Sea
class 4
class 0,6,5,4
class 6X
4
Table 6.4 (3) Effective width of outer and inner rings with roller Unitμm
Nominal
bore
diameter
Effective width deviation
of roller and inner ring assembly
of tapererd roller bearing
d
∆T1s
Tapered roller bearing outer
ring effective width deviation
∆T2s
mm
class 0
class 6X
class 0
class 6X
inf.
over
incl.
high
low
high
low
high
low
0
0
0
-100
-100
-100
10
18
30
18
30
50
+100
+100
+100
0
0
0
+50
+50
+50
0
0
0
+100
+100
+100
0
0
0
+50
+50
+50
0
0
0
0
0
0
-100
-100
-100
50
80
120
80
120
180
+100
+100
+150
0
-100
-150
+50
+50
+50
0
0
0
+100
+100
+200
0
-100
-100
+50
+50
+100
0
0
0
10
10
13
0
0
0
-100
-100
-100
180
250
315
250
315
400
+150
+150
+200
-150
-150
-200
+50
+100
+100
0
0
0
+200
+200
+200
-100
-100
-200
+100
+100
+100
0
0
0
―
―
0
0
-100
-100
max
5
5
5
6
7
8
sup.
inf. sup.
Depends on
tolerance of
∆Bs in
relation to d
of same
bearing
4 Applies to bearing where d is greater than 10 mm
but is less than or equal to 400 mm.
T1
Master cup
sub-unit
φd
A-39
T2
high low
Master cone
sub-unit
φd
●Bearing Tolerances
Table 6.5 Tolerance of tapered roller bearings (Inch series)
Table 6.5 (1) Inner rings
Unitμm
Nominal bore diameter
Single bore diameter deviation
d
∆ds
mm (inch)
over
incl.
Class 2
Class 4
Class 3
Class 0
Class 00
high
low
high
low
high
low
high
low
high
low
76.2 ( 3 )
266.7 (10.5)
304.8 (12 )
+13
+25
+25
0
0
0
+13
+25
+25
0
0
0
+13
+13
+13
0
0
0
+13
+13
+13
0
0
0
+8
+8
―
0
0
―
304.8 (12 )
609.6 (24 )
609.6 (24 )
914.4 (36 )
914.4 (36 ) 1 219.2 (48 )
+51
+76
+102
0
0
0
+51
―
―
0
―
―
+25
+38
+51
0
0
0
―
―
―
―
―
―
―
―
―
―
―
―
+127
0
―
―
+76
0
―
―
―
―
−
76.2 ( 3 )
266.7 (10.5)
−
1 219.2 (48 )
Table 6.5 (2) Outer rings
Unitμm
Nominal outside diameter
Single outside diameter deviation
D
∆Ds
mm (inch)
Class 2
Class 4
Class 3
Class 0
Class 00
over
incl.
high
low
high
low
high
low
high
low
high
low
−
266.7 (10.5)
304.8 (12 )
266.7 (10.5)
304.8 (12 )
609.6 (24 )
+25
+25
+51
0
0
0
+25
+25
+51
0
0
0
+13
+13
+25
0
0
0
+13
+13
― 0
0
―
+8
― ― 0
―
―
609.6 (24 )
914.4 (36 )
1 219.2 (48 )
914.4 (36 )
1 219.2 (48 )
−
+76
+102
+127
0
0
0
+76
― ― 0
―
―
+38
+51
+76
0
0
0
― ― ― ―
―
―
― ― ― ―
―
―
Table 6.5 (3) Single-row tapered roller bearing assembly width, combination width of 4-row bearings,
effective width of inner ring with rollers, effective width of outer ring
Nominal
bore
diameter
Nominal
outside
diameter
d
D
mm (inch)
mm (inch)
Overall width deviation of assembled single row tapered roller bearing
∆B2s, ∆C2s
Class 4
over
incl.
over
101.6 ( 4)
−
101.6 ( 4) 304.8 (12)
304.8 (12) 609.6 (24)
−
Overall width deviation
of assembled 4-row
tapered roller bearings
∆Ts
Class 2
Class 3
Class 0,00
Class 4,2,3,0
incl.
high
low
high
low
high
low
high
low
high
low
508.0 (20)
+203
+356
+381
0
-254
-381
+203
+203
+381
0
0
-381
+203
+203
+203
-203
-203
-203
+203
+203
― -203
-203
― +1 524
+1 524
+1 524
-1 524
-1 524
-1 524
+381
+381
-381
-381
+381
― -381
― +381
+381
-381
-381
― ― ― ― +1 524
+1 524
-1 524
-1 524
304.8 (12) 609.6 (36) 508.0 (20)
−
609.6 (24)
−
Table 6.5 (4) Radial deflection of inner and outer rings
Unitμm
Nominal outside diameter
Inner ring radial runout Kia
D
Outer ring radial runout Kea
mm (inch)
Class 4
Class 2
Class 3
Class 0
Class 00
max
over
incl.
―
304.8 (14)
609.6 (24)
304.8 (14)
609.6 (24)
914.4 (36)
51
51
76
38
38
51
8
18
51
4
―
―
2
―
―
914.4 (36)
―
76
―
76
―
―
A-40
●Bearing Tolerances
Master cup
sub-unit
T1
Master cone
sub-unit
T2
φd
φd
Unitμm
Effective width deviation of roller and inner
ring assembly of tapered roller bearing
Tapered roller bearing outer ring effective width deviation
∆T2s
∆T1s
high
low
+102
+152
― 0
-152
― ― ― ― ― high
low
+102
+102
+178
0
0
1
-178
― ― ― ― high
+102
+102
+102
― ― low
high
+102
+203
― 0
-102
― ― ― ― ― ― ― A-41
Class 3
Class 2
-102
-102
1
-102
1 To be applied for nominal bore diameters d of 406.400 mm (16 inch) or less.
Class 4
Class 3
Class 2
Class 4
low
high
low
high
low
+102
+102
+203
0
0
1
-203
+102
+102
+102
-102
-102
1
-102
― ― ― ― ― ― ― ― ●Bearing Tolerances
Table 6.6 Tolerance of tapered roller bearings of J series (Metric series)
Table 6.6 (1) Inner rings
Nominal
bore
diameter
Mean bore diameter deviation
Bore diameter variation
∆dmp
Vdp
Mean bore diameter
variation
Vdmp
d
mm
Class
Class
Class
Class
Class
Class
Class
Class
Class
Class
Class
Class
K
N
C
B
K
N
C
B
K
N
C
B
over
incl.
high
low
high
low
high
low
high
low
10
18
30
18
30
50
0
0
0
-12
-12
-12
0
0
0
-12
-12
-12
0
0
0
-7
-8
-10
0
0
0
-5
-6
-8
12
12
12
12
12
12
max
4
4
4
3
3
3
9
9
9
9
9
9
max
5
5
5
4
4
5
50
80
120
80
120
180
0
0
0
-15
-20
-25
0
0
0
-15
-20
-25
0
0
0
-12
-15
-18
0
0
0
-9
-10
-13
15
20
25
15
20
25
5
5
5
3
3
3
11
15
19
11
15
19
5
5
5
5
5
7
180
250
0
-30
0
-30
0
-22
0
-15
30
30
6
4
23
23
5
8
Note: Please consult NTN Engineering for Class A bearings.
Table 6.6 (2) Outer rings
Mean outside diameter deviation
Nominal
outside
diameter
∆Dmp
Outside diameter
variation
Mean outside
diameter variation
outer ring
axial runout
VDp
VDmp
Sea
D
mm
Class
Class
Class
Class
K
N
C
B
Class Class Class Class
K
N
C
Class Class Class Class
B
K
N
C
max
Class
B
B
over
incl.
high
low
high
low
high
low
high
low
18
30
50
30
50
80
0
0
0
-12
-14
-16
0
0
0
-12
-14
-16
0
0
0
-8
-9
-11
0
0
0
-6
-7
-9
12
14
16
12
14
16
4
4
4
3
3
3
9
11
12
9
11
12
5
5
6
4
5
5
3
3
4
80
120
150
120
150
180
0
0
0
-18
-20
-25
0
0
0
-18
-20
-25
0
0
0
-13
-15
-18
0
0
0
-10
-11
-13
18
20
25
18
20
25
5
5
5
3
3
3
14
15
19
14
15
19
7
8
9
5
6
7
4
4
5
180
250
315
250
315
400
0
0
0
-30
-35
-40
0
0
0
-30
-35
-40
0
0
0
-20
-25
-28
0
0
0
-15
-18
-20
30
35
40
30
35
40
6
8
10
4
5
5
23
26
30
23
26
30
10
13
14
8
9
10
6
6
6
max
max
Note: Please consult NTN Engineering for Class A bearings.
Table 6.6 (3) Effective width of inner and outer rings
Nominal
bore
diameter
d
Tapered roller bearing outer ring
effective width deviation
∆T2s
Effective width deviation of roller and inner ring
assembly of tapered roller bearing
∆T1s
Class
mm
Unitμm
Class
Class
Class
Class
Class
Class
Class
N
C
B
K
N
C
B
K
over
incl.
high
low
high
low
high
low high
10
80
120
80
120
180
+100
+100
+150
0
-100
-150
+50
+50
+50
0
0
0
+100
+100
+100
-100
-100
-100
180
250
+150
-150
+50
0
+100
-150
low
high
low
high
low
high
low high
*
*
*
*
*
*
+100
+100
+200
0
-100
-100
+50
+50
+100
0
0
0
+100
+100
+100
-100
-100
-150
*
*
*
*
*
*
*
*
+200
-100
+100
0
+100
-150
*
*
Note 1: "*" mark are to be manufactured only for combined bearings.
2: Please consult NTN Engineering for Class A bearings.
A-42
low
●Bearing Tolerances
Unitμm
Overall width deviation of assembled
tapered roller bearing
Inner ring
axial runout
∆Ts
Sia
Class
Class
Class
Class
Class
B
K
N
C
B
max
sup
inf
sup
3
4
4
+200
+200
+200
inf
0 +100
0 +100
0 +100
sup
0
0
0
+200
+200
+200
-200 +200
-200 +200
-200 +200
inf
sup
-200
-200
-200
inf
4
5
7
+200
+200
+350
0 +100
-200 +100
-250 +150
0
0
0
+200
+200
+350
-200 +200
-200 +200
-250 +200
-200
-200
-250
8
+350
-250 +150
0
+350
-300 +200
-300
Table 6.6 (4) Radial runout of inner and outer rings
Unitμm
Nominal
outside
diameter
Inner ring radial runout Kia
and
Outer ring radial runout Kea
D
mm
Class
Class
Class
Class
K
N
C
B
max
over
incl.
18
30
50
30
50
80
18
20
25
18
20
25
5
6
6
3
3
4
80
120
150
120
150
180
35
40
45
35
40
45
6
7
8
4
4
4
180
250
315
250
315
400
50
60
70
50
60
70
10
11
13
5
5
5
Note: Please consult NTN Engineering for Class A bearings.
T1
Master cup
sub-unit
φd
T2
Master cone
sub-unit
φd
A-43
●Bearing Tolerances
Table 6.7 Tolerance of thrust ball bearings
Table 6.7 (1) Shaft raceway disc
Nominal
bore
diameter
Unitμm
Mean bore diameter deviation
Raceway thickness variation
Bore diameter
variation
∆dmp
Si
Vdp
d
mm
Class
Class
Class
Class
Class
Class
Class
Class
0,6,5
4
0,6,5
4
0
6
5
4
over
incl.
high
low
high
low
―
18
30
18
30
50
0
0
0
-8
-10
-12
0
0
0
-7
-8
-10
6
8
9
max
5
6
8
10
10
10
5
5
6
max
3
3
3
2
2
2
50
80
120
80
120
180
0
0
0
-15
-20
-25
0
0
0
-12
-15
-18
11
15
19
9
11
14
10
15
15
7
8
9
4
4
5
3
3
4
180
250
315
250
315
400
0
0
0
-30
-35
-40
0
0
0
-22
-25
-30
23
26
30
17
19
23
20
25
30
10
13
15
5
7
7
4
5
5
400
500
500
630
0
0
-45
-50
0
0
-35
-40
34
38
26
30
30
35
18
21
9
11
6
7
Table 6.7 (2) Housing raceway disc
Nominal
outside
diameter
Unitμm
Mean outside diameter deviation
Raceway thickness variation
Outside diameter
variation
∆Dmp
Se
VDp
D
Class
mm
Class
0,6,5
Class
4
0,6,5
Class
Class
Class
4
0
6
over
incl.
high
low
high
low
10
18
30
18
30
50
0
0
0
-11
-13
-16
0
0
0
-7
-8
-9
8
10
12
5
6
7
50
80
120
80
120
180
0
0
0
-19
-22
-25
0
0
0
-11
-13
-15
14
17
19
8
10
11
180
250
315
250
315
400
0
0
0
-30
-35
-40
0
0
0
-20
-25
-28
23
26
30
15
19
21
400
500
630
500
630
800
0
0
0
-45
-50
-75
0
0
0
-33
-38
-45
34
38
55
25
29
34
Table 6.7 (3) Bearing height
Nominal
bore
diameter
max
Unitμm
Single direction
Bearing height 1
deviation
d
∆Ts
mm
over
incl.
high
low
―
30
50
30
50
80
0
0
0
-75
-100
-125
80
120
180
120
180
250
0
0
0
-150
-175
-200
250
315
400
500
315
400
500
630
0
0
0
0
-225
-300
-350
-400
1 This standard is applied for flat back face bearing of class 0.
A-44
Class
Class
5
4
max
According to the tolerance
of S1 against "d" of the same
bearings
●Bearing Tolerances
Table 6.8 Tolerance of spherical thrust roller bearing
Table 6.8 (1) Shaft raceway disc
Nominal
bore diameter
d
mm
over
incl.
Table 6.8 (2) Housing raceway disc
Unitμm
Unitμm
Mean bore
Bore
Side
diameter deviation diameter runout
variation with bore
∆dmp
Vdp
Sd
Nominal
outside diameter
Bearing height
deviation
∆Ts
D
Single plane mean
outside diameter
deviation
mm
∆Dmp
high
low
max
max
high
low
over
incl.
high
low
50
80
120
80
120
180
0
0
0
-15
-20
-25
11
15
19
25
25
30
+150
+200
+250
-150
-200
-250
120
180
250
180
250
315
0
0
0
-25
-30
-35
180
250
315
250
315
400
0
0
0
-30
-35
-40
23
26
30
30
35
40
+300
+350
+400
-300
-350
-400
315
400
500
400
500
630
0
0
0
-40
-45
-50
400
500
0
-45
34
45
+450
-450
630
800
800
1,000
0
0
-75
-100
Table 6.9 Tolerance of double direction type angular contact thrust ball bearings
Table 6.9 (1) Inner rings and bearing height
Nominal
bore diameter
Mean bore diameter
deviation ∆dmp
Bore diameter deviation ∆ds
d
mm
Class 5
Class 4
Unitμm
Bearing height
deviation
Sia
Inner ring
width variation
VBs
Class 5 Class 4
Class 5 Class 4
Class 5, Class 4
Side runout
with bore
Sd
Inner ring axial
Class 5 Class 4
runout
over
incl.
high
low
high
low
18
30
50
30
50
80
0
0
0
-6
-8
-9
0
0
0
-5
-6
-7
8
8
8
max
4
4
5
5
5
6
max
3
3
5
5
5
6
max
80
120
180
120
180
250
0
0
0
-10
-13
-15
0
0
0
-8
-10
-12
9
10
11
5
6
7
6
8
8
5
6
6
250
315
315
400
0
0
-18
-23
0
0
-15
-18
13
15
8
9
10
13
8
10
∆Ts
high
low
2.5
3
4
0
0
0
-300
-400
-500
7
8
10
4
5
6
0
0
0
-600
-700
-800
13
15
7
9
0
0
-900
-1,000
Table 6.9 (2) Outer rings
Nominal
outside diameter
D
mm
Unitμm
Mean outside diameter
deviation ∆Dmp
Outside diameter
deviation ∆Ds
Outside surface inclination
Outer ring axial runout
Outer ring width variation
SD
Sea
VCs
Class 5
Class 4
over
incl.
high
low
Class 5
Class 4
30
50
80
50
80
120
-30
-40
-50
-40
-50
-60
8
8
9
4
4
5
120
150
180
150
180
250
-60
-60
-75
-75
-75
-90
10
10
11
5
5
7
250
315
400
315
400
500
-90
-110
-120
-105
-125
-140
13
13
15
8
10
13
max
A-45
Class 5
Class 4
Class 5
max
According to
tolerance of Sia
against "d" of the
same bearings
Class 4
max
5
6
8
2.5
3
4
8
8
10
5
5
7
11
13
15
7
8
10
●Bearing Tolerances
6.2 Chamfer measurements and tolerance or
allowable values of tapered bore
1
1
1
Bore diameter face rs min or r1s min
of bearing or outer
rs max or r1s max
diameter face of
bearing
(Axial direction)
Table 6.10 Allowable critical-value of bearing chamfer
Table 6.10 (1) Radial bearing (Except tapered roller bearing)
rs min or r s min
rs min or
r s min
(Radial direction)
rs max or r s max
Side face of inner
ring or center
washer, or side face
of outer ring
Table 6.10 (2) Tapered roller bearings of metric series
Unit mm
Unit mm
1
rs min
or
r1s min
Nominal
bore diameter
d
over
incl.
rs max or r1s max
rs min
Radial
direction
Axial
direction
0.2
―
―
0.1
0.08
―
―
0.16
0.3
0.1
―
―
0.2
0.4
0.15
―
―
0.3
0.6
0.2
―
―
0.5
0.8
―
40
0.6
1
40
―
0.8
1
―
40
1
2
40
―
1.3
2
―
50
1.5
3
50
―
1.9
3
―
120
2
3.5
0.05
0.3
0.6
1
1.1
1.5
2
2.1
2.5
120
―
2.5
4
―
120
2.3
4
120
―
3
5
―
80
3
4.5
or
r1s min
0.3
0.6
1
1.5
2
2.5
3
Nominal bore
diameter of bearing
"d" or nominal
outside diameter "D"
rs max or r1s max
over
incl.
Radial
direction
Axial
direction
―
40
0.7
1.4
40
―
0.9
1.6
―
40
1.1
1.7
40
―
1.3
2
―
50
1.6
2.5
50
―
1.9
3
―
120
2.3
3
120
250
2.8
3.5
250
―
3.5
4
―
120
2.8
4
120
250
3.5
4.5
250
―
4
5
―
120
3.5
5
120
250
4
5.5
250
―
4.5
6
―
120
4
5.5
80
220
3.5
5
120
250
4.5
6.5
220
―
3.8
6
250
400
5
7
400
―
5.5
7.5
―
120
5
7
120
250
5.5
7.5
250
400
6
8
400
―
6.5
8.5
―
280
4
6.5
280
―
4.5
7
―
100
3.8
6
100
280
4.5
6
280
―
5
7
―
280
5
8
280
―
5.5
8
4
―
―
6.5
5
―
―
8
10
6
―
―
10
13
7.5
―
―
12.5
17
9.5
3
2
3
4
5
9
―
―
15
19
12
―
―
18
24
15
―
―
21
30
19
―
―
25
38
6
―
180
6.5
8
180
―
7.5
9
―
180
7.5
10
180
―
9
11
2 These are the allowable minimum dimensions of the chamfer dimension
"r" or "r1" and are described in the dimensional table.
3 Inner rings shall be in accordance with the division of "d" and outer rings
with that of "D".
Note: This standard will be applied to the bearings whose dimensional series
(refer to the dimensional table) are specified in the standard of ISO 355
or JIS B 1512. For further information concerning bearings outside of
these standards or tapered roller bearings using US customary unit,
please contact NTN Engineering.
1 These are the allowable minimum dimensions of the chamfer dimension
"r" or "r1" and are described in the dimensional table.
A-46
φd1
φd
α
φ
（d+∆dmp） α
B
B
Tapered bore having dimensional
difference of the average bore
diameter within the flat surface
Theoretical tapered bore
Table 6.11 (1) Tolerance of and tolerance values for tapered bore of
radial bearings
Standard taper ratio 1:12 tapared hole (class 0) Unitμm
Table 6.10 (3) Thrust bearings
Unit mm
rs min or r1 min
4
φ
（d1+∆d1mp） ∆d1mp−∆dmp
2
●Bearing Tolerances
d
mm
rs max or r1s max
Radial and axial direcition
∆dmp
∆d1mp - ∆dmp
Vdp 1
over
incl.
high
low
high
low
max
10
18
10
18
30
+ 22
+ 27
+ 33
0
0
0
+ 15
+ 18
+ 21
0
0
0
9
11
13
30
50
80
50
80
120
+ 39
+ 46
+ 54
0
0
0
+ 25
+ 30
+ 35
0
0
0
16
19
22
120
180
250
180
250
315
+ 63
+ 72
+ 81
0
0
0
+ 40
+ 46
+ 52
0
0
0
40
46
52
315
400
500
400
500
630
+ 89
+ 97
+110
0
0
0
+ 57
+ 63
+ 70
0
0
0
57
63
70
630
800
1,000
1,250
800
1,000
1,250
1,600
+125
+140
+165
+195
0
0
0
0
+ 80
+ 90
+105
+125
0
0
0
0
―
―
―
―
0.05
0.1
0.08
0.16
0.1
0.2
0.15
0.3
0.2
0.5
0.3
0.8
0.6
1.5
1
2.2
1.1
2.7
1.5
3.5
2
4
2.1
4.5
3
5.5
4
6.5
over
incl.
low
high
low
max
5
8
6
10
50
80
120
80
120
180
+15
+20
+25
0
0
0
+30
+35
+40
0
0
0
19
22
40
7.5
12.5
9.5
15
180
250
315
250
315
400
+30
+35
+40
0
0
0
+46
+52
+57
0
0
0
46
52
57
12
18
15
21
19
25
2
Table 6.11 (2) Tolerance of and tolerance values for tapered bore of
radial bearings
Standard taper ratio 1:30 tapered bore (class 0) Units μm
∆dmp
d
mm
high
∆d1mp - ∆dmp
Vdp 1
400
500
+45
0
+63
0
63
500
630
+50
0
+70
0
70
1 Applies to all radial flat planes of inner ring tapered bore.
2 Does not apply to diameter series 7 and 8.
Note: Quantifiers
1
For a standard taper ratio of 1:12 d1＝d＋ B
12
4 These are the allowable minimum dimensions of the chamfer
dimension "r" or "r1" and are described in the dimensional table.
1
For a standard taper ratio of 1:30 d1＝d＋ B
30
∆dmp ：Dimensional difference of the average bore
diameter within the flat surface at the theoretical
small end of the tapered bore.
∆d1mp ：Dimensional difference of the average bore
diameter within the flat surface at the theoretical
large end of the tapered bore.
Vdp ：Unevenness of the bore diameter with the flat surface
B ：Nominal width of inner ring
α ：Half of the tapered bore’s nominal taper angle
For a standard taper ratio of 1:12 α＝2°
23′
9.4″
For a standard taper ratio of 1:30 α＝0°
57′
7.4″
A-47
2
●Bearing Tolerances
6.3 Bearing tolerance measurement methods
Table 6.12 shows some of the major methods of
measuring rotation tolerances.
For reference, measurement methods for rolling bearing
tolerances are in JIS B 1515.
Table 6.12 Rotation tolerance measurement methods
Characteristic tolerance
Measurement method
Measuring load
Measuring load
Inner ring radial runout
(Kia)
Measuring load
Measuring load
Outer ring radial runout
(Kea)
Measuring load
Measuring load
Inner ring axial runout
(Sia)
Radial runout of the inner ring is
the difference between the
maximum and minimum reading
of the measuring device when
the inner ring is turned one
revolution.
Radial runout of the outer ring is
the difference between the
maximum and minimum reading
of the measuring device when
the outer ring is turned one
revolution.
Axial runout of the inner ring is
the difference between the
maximum and minimum reading
of the measuring device when
the inner ring is turned one
revolution.
Outer ring axial runout
(Sea)
Axial runout of the outer ring is
the difference between the
maximum and minimum reading
of the measuring device when
the outer ring is turned one
revolution.
Inner ring side
runout with bore
(Sd)
Inner ring side runout with bore
is the difference between the
maximum and minimum reading
of the measuring device when
the inner ring is turned one
revolution together with the
tapered mandrel.
Measuring load
Measuring load
1.2rs max
Outer ring outside
surface inclination
(SD)
1.2rs max
Reinforcing
plate
A-48
Outer ring outside surface
inclination is the difference
between the maximum and
minimum reading of the measuring
device when the outside ring is
turned one revolution along the
reinforcing plate.
●Bearing Fits
7
Bearing Fits
¡Increased noise and deteriorated rotational accuracy
due to raceway groove deformation
7.1 Fitting
For rolling bearings, inner and outer rings are fixed on
the shaft or in the housing so that relative movement
does not occur between fitting surfaces during operation
or under load. This relative movement between the fitting
surfaces of the bearing and the shaft or housing can
occur in a radial direction, an axial direction, or in the
direction of rotation. Types of fitting include tight,
transition and loose fitting, which may be selected
depending on whether or not there is interference.
The most effective way to fix the fitting surfaces
between a bearing's raceway and shaft or housing is to
apply a "tight fit." The advantage of this tight fit for thin
walled bearings is that it provides uniform load support
over the entire ring circumference without any loss of load
carrying capacity. However, with a tight fit, ease of
installation and disassembly is lost; and when using a
non-separable bearing as the floating-side bearing, axial
displacement is not possible. For this reason, a tight fit
cannot be recommended in all cases.
Please refer to insert pages A-96 ∼ A-99 for
information concerning diagnosis of these conditions.
7.3 Fit selection
Selection of a proper fit is dependent upon thorough
analysis of bearing operating conditions, including
consideration of:
¡Shaft and housing material, wall thickness, finished
surface accuracy, etc.
¡Machinery operating conditions (nature and
magnitude of load, rotational speed, temperature,
etc.)
7.3.1 "Tight fit" or "Loose fit"
(1) For raceways under rotating loads, a tight fit is
necessary. (Refer to Table 7.1) "Raceways under
rotating loads" refers to raceways receiving loads
rotating relative to their radial direction. For raceways
under static loads, on the other hand, a loose fit is
sufficient.
(Example) Rotating inner ring load = the direction of
the radial load on the inner ring is rotating
relatively
(2) For non-separable bearings, such as deep groove ball
bearings, it is generally recommended that either the
inner ring or outer ring be given a loose fit.
7.2 The necessity of a proper fit
In some cases, improper fit may lead to damage and
shorten bearing life, therefore it is necessary to make a
careful investigation in selecting a proper fit. Some of the
bearing failure caused by improper fit are listed below.
¡Raceway cracking, early flaking and displacement of
raceway
¡Raceway and shaft or housing abrasion caused by
creeping and fretting corrosion
¡Seizing caused by negative internal clearances
Table 7.1 Radial load and bearing fit
Illustration
Static
load
Ring load
Fit
Rotating inner
ring load
Inner ring :
Tight fit
Static outer
ring load
Outer ring :
Loose fit
Outer ring:
Rotating
Static inner
ring load
Inner ring :
Loose fit
Inner ring:
Rotating
Rotating outer
ring load
Outer ring :
Tight fit
Bearing rotation
Inner ring:
Rotating
Outer ring:
Stationary
Unbalanced
load
Inner ring:
Stationary
Outer ring:
Rotating
Static
load
Unbalanced
load
Inner ring:
Stationary
Outer ring:
Stationary
A-49
●Bearing Fits
shown in formula (7.3).
7.3.2 Recommended Fits
Bearing fit is governed by the selection tolerances for
bearing shaft diameters and housing bore diameters.
Widely used fits for 0 Class tolerance bearings and
various shaft and housing bore diameter tolerances are
shown in Table 7.1.
Generally-used, standard fits for most types of bearings
and operating conditions are shown in Tables 7.2 - 7.7.
∆ dT = 0.0015・d・∆T ……………………………………(7.3)
∆ dT : Required effective interference for
temperature difference μm
∆T : Difference between bearing temperature
and ambient temperature ˚C
d : Bearing bore diameter mm
(3) Fitting surface variation and required interference
Interference decreases because the fitting surface is
smoothened by fitting (surface roughness is reduced).
The amount the interference decreases depends on
roughness of the fitting surface. It is generally necessary
to anticipate the following decrease in interference.
For ground shafts: 1.0∼2.5μm
For lathed shafts: 5.0∼7.0μm
Table 7.2: Fits for radial bearings
Table 7.3: Fits for thrust bearings
Table 7.4: Fits for electric motor bearings
Table 7.6: Fits for inch series tapered roller bearings
(ANSI Class 4)
Table 7.7: Fits for inch series tapered roller bearings
(ANSI Class 3 and 0)
Table 7.5. shows fits and their numerical values.
For special fits or applications, please consult NTN
Engineering.
(4) Maximum interference
When bearing rings are installed with an interference fit,
tension or compression stress may occur along their
raceways. If interference is too great, this may cause
damage to the rings and reduce bearing life. You should
try to obtain the previously described upper limit.
7.3.3 Interference minimum and maximum values
The following points should be considered when it is
necessary to calculate the interference for an application:
¡In calculating the minimum required amount of
interference keep in mind that:
1) interference is reduced by radial loads
2) interference is reduced by differences between
bearing temperature and ambient temperature
3) interference is reduced by variation of fitting
surfaces
¡The upper limit value should not exceed 1/1000 of
the shaft diameter.
Required interference calculations are shown below.
7.3.4 Other details
(1) Tight interference fits are recommended for,
¡Operating conditions with large vibration or shock
loads
¡Applications using hollow shafts or housings with
thin walls
¡Applications using housings made of light alloys or
plastic
(2) Small interference fits are preferable for,
¡Applications requiring high running accuracy
¡Applications using small sized bearings or thin
walled bearings
(3) Consideration must also be given to the fact that fit
selection will effect internal bearing clearance
selection. (refer to page insert A-58)
(1) Radial loads and required interference
Interference of the inner ring and shaft decreases when
a radial load is applied to the bearing. The interference
required to secure effective interference is expressed by
formulae (7.1) and (7.2).
Fr ≦ 0.3 Cor
1/2
∆ dF = 0.08 (d・Fr / B)
1/2
= 0.25 (d・Fr / B)
Fr ＞ 0.3 Cor
∆ dF = 0.02 (Fr / B)
= 0.2 (Fr / B)
N
｛kgf ｝
｝………(7.1)
N
｛kgf ｝
Housing
JIS class 0
bearing
｝
………(7.2)
G6
G7
H8
H7
H6
J6 J7
K6 K7
∆ Dmp
M6 M7
Where,
N6 N7
∆ dF : Required effective interference according to
radial load μm
d : Bearing bore diameter mm
B : Inner ring width mm
Fr : Radial load N｛kgf｝
Cor : Basic static load rating N｛kgf｝
P6 P7
Loose fit
Transition fit
Tight fit
Types of fits
Tight fit
Transition fit
p6
(2) Temperature difference and required interference
Interference between inner rings and steel shafts is
reduced as a result of temperature increases (difference
between bearing temperature and ambient temperature,
∆T) caused by bearing rotation. Calculation of the
minimum required amount of interference in such cases is
JIS class 0
bearing
k5
h5 h6
∆dmp
J5
k6
J6
g5 g6
Shafts
Fig 7.1 State of fitting
A-50
m5 m6
n5 n6
●Bearing Fits
(4) A particular type of fit is recommended for SL type
cylindrical roller bearings.(See page C-44.)
Table 7.2 General standards for radial bearing fits (JIS Class 0, 6X, 6)
Table 7.2 (1) Tolerance class of shafts commonly used for radial bearings (classes 0, 6X and 6)
Ball bearings
Conditions
Shaft diameter (mm)
1
Inner ring rotational load or load
of undetermined direction
Light load
or
fluctuating load
Ordinary
load
Cylindrical roller bearing Spherical roller bearing
Tapered roller bearing
1
Heavy load 1
or
impact load
Shaft
tolerance
class
Remarks
Over
Under
―
18
100
―
18
100
200
―
―
―
40
140
―
40
140
200
―
―
―
―
―
―
―
―
h5
js6
k6
m6
When greater accuracy is required
js5, k5, and m5 may be substituted
for js6, k6, and m6.
―
18
100
140
200
―
―
18
100
140
200
280
―
―
―
―
40
100
140
200
―
―
40
100
140
200
400
―
―
―
40
65
100
140
280
―
40
65
100
140
280
500
js5
k5
m5
m6
n6
p6
r6
Alteration of inner clearances to
accommodate fit is not a consideration
with single-row angular contact
bearings and tapered roller bearings.
Therefore, k5 and m5 may be
substituted for k6 and m6.
―
―
―
―
―
―
50
140
200
140
200
―
50
100
140
100
140
200
n6
p6
r6
Use bearings with larger internal
clearances than CN clearance bearings.
Over
Under
Over
Under
Cylindrical bore bearing (Classes 0, 6X and 6)
Inner ring
static load
Inner ring must
move easily
over shaft
Overall shaft diameter
g6
When greater accuracy is required use g5.
For large bearings, f6 will suffice for to
facilitate movement.
Inner does not
have to move
easily over shaft
Overall shaft diameter
h6
When greater accuracy is
required use h5.
Overall shaft diameter
js6
Generally, shaft and inner rings
are not fixed using interferance.
Center axial load
Tapered bore bearing (class 0) (with adapter or withdrawal sleeve)
2
Overall load
Overall shaft diameter
h9/IT5
2
h10/IT7 will suffice for power
transmitting shafts.
Table 7.2 (2) Fit with shaft (fits for tapered bore bearings (Class 0) with adapter assembly/withdrawal sleeve)
All loads
All bearing types
All shaft diameters
Tolerance
class
h9 / IT5 2
h10 / IT7
2
1 Standards for light loads, normal loads, and heavy loads
Light loads: equivalent radial load ≦ 0.06 Cr
Normal loads: 0.06 Cr ＜equivalent radial load ≦ 0.12 Cr
Heavy loads: 0.12 Cr ＜equivalent radial load
2 IT5 and IT7 show shaft roundness tolerances, cylindricity tolerances, and related values.
Note: All values and fits listed in the above tables are for solid steel shafts.
A-51
General applications
Transmission shafts, etc.
●Bearing Fits
Table 7.2 (3) Tolerance class of housing bore commonly used for radial bearings (classes 0, 6X and 6)
Conditions
Housing
Types of load
Single housing
or
divided housing
Outer ring
static load
Single housing
Outer ring
rotational load
Toleration class
of housing bore
Remarks
G7 will suffice for large bearings
or bearings with large
temperature differential between
the outer ring and housing.
All types of loads
Able to move.
H7
Light load 1
or
ordinary load 1
Able to move.
H8
Shaft and inner
ring become hot.
Able to move easily.
G7
F7 will suffice for large bearings
or bearings with large
temperature differential between
the outer ring and housing.
As a rule, cannot move.
K6
Primarily applies to
roller bearings.
Able to move.
JS6
Primarily applies to ball bearings.
Requires quiet operation.
Able to move.
H6
Light or ordinary load
Able to move.
JS7
Ordinary load or
heavy load 1
As a rule, cannot move.
K7
Large impact load
Cannot move.
M7
Light or fluctuating load
Cannot move.
M7
Ordinary or heavy load
Cannot move.
N7
Primarily applies to ball bearings.
Heavy load or large
impact load with
thin housing
Cannot move.
P7
Primarily applies to roller bearings.
Requires precision
rotation with light
or ordinary loads.
Indeterminate
load
Outer ring axial 2
direction movement
If precision is required, JS6
and K6 are used in place of
JS7 and K7.
1 Standards for light loads, normal loads, and heavy loads
Light loads: equivalent radial load ≦ 0.06 Cr
Normal loads: 0.06 Cr ＜equivalent radial load ≦ 0.12 Cr
Heavy loads: 0.12 Cr ＜ equivalent radial load
2 Indicates whether or not outer ring axial displacement is possible with non-separable type bearings.
Note 1: All values and fits listed in the above tables are for cast iron or steel housings.
2: If only center axial load is applied to the bearing, select a tolerance class that provides clearance for the outer ring in the axial direction.
A-52
●Bearing Fits
Table 7.3 Standard fits for thrust bearings (JIS Class 0 and 6)
Table 7.3 (1) Shaft fits
Load conditions
Fit
Shaft diameter
mm
over incl.
Tolerance class
All thrust bearings
Centered axial load only
Transition fit
All sizes
js6 or h6
Inner ring static load
Transition fit
All sizes
js6
Inner ring rotating load
or
Indeterminate load
Transition fit
∼ 200
200 ∼ 400
400 ∼ k6 or js6
m6 or k6
n6 or m6
Spherical roller
thrust bearings
Combined load
Bearing type
Tight fit
Table 7.3 (2) Housing fits
Bearing type
Load conditions
All thrust
bearings
Centered axial load only
Outer ring static load
Indeterminate
load or outer ring
rotating load
Remarks
Select a tolerance class that will provide clearance between outer ring and housing.
Loose fit
Combined load
Spherical
roller thrust
bearings
Tolerance
class
Fit
H8
Greater accuracy required with thrust ball bearings
H7
Transition fit
K7
Normal operating conditions
M7
For relatively large radial loads
Note: All values and fits listed in the above tables are for cast iron or steel housings.
Table 7.4 Fits for electric motor bearings
Bearing type
Shaft fits
Shaft diameter mm
Tolerance class
over incl.
Housing fits
Housing bore
Tolerance class
diameter
Deep groove
ball bearings
∼ 18
18 ∼ 100
100 ∼ 160
j5
k5
m5
All sizes
H6 or J6
Cylindrical
roller bearings
∼ 40
40 ∼ 160
160 ∼ 200
k5
m5
n6
All sizes
H6 or J6
A-53
●Bearing Fits
Table 7.5 Numeric value table of fitting for radial bearing of 0 class
Table 7.5 (1) Fitting against shaft
Nominal bore
diameter of
bearing
Mean bore 1
diameter
deviation
g5
bearing
g6
shaft
bearing
h5
shaft
bearing
h6
shaft
bearing
j5
shaft
bearing
js5
shaft
bearing
j6
shaft
bearing
shaft
∆dmp
d
mm
over
incl.
high
low
3
6
0
-8
4T∼ 9L
4T∼ 12L
8T∼ 5L
8T∼ 8L
11T∼ 2L
10.5T ∼ 2.5L
14T∼ 2L
6
10
0
-8
3T∼ 11L
3T∼ 14L
8T∼ 6L
8T∼ 9L
12T∼ 2L
11T ∼ 3L
15T∼ 2L
10
18
0
-8
2T∼ 14L
2T∼ 17L
8T∼ 8L
8T∼ 11L
13T∼ 3L
12T ∼ 4L
16T∼ 3L
18
30
0
-10
3T∼ 16L
3T∼ 20L
10T∼ 9L
10T∼ 13L
15T∼ 4L
14.5T ∼ 4.5L
19T∼ 4L
30
50
0
-12
3T∼ 20L
3T∼ 25L
12T∼ 11L
12T∼ 16L
18T∼ 5L
17.5T ∼ 5.5L
23T∼ 5L
50
80
0
-15
5T∼ 23L
5T∼ 29L
15T∼ 13L
15T∼ 19L
21T∼ 7L
21.5T ∼ 6.5L
27T∼ 7L
80
120
0
-20
8T∼ 27L
8T∼ 34L
20T∼ 15L
20T∼ 22L
26T∼ 9L
27.5T ∼ 7.5L
33T∼ 9L
120
140
160
140
160
180
0
-25
11T∼ 32L
11T∼ 39L
25T∼ 18L
25T∼ 25L
32T∼ 11L
34T ∼ 9L
39T∼ 11L
180
200
225
200
225
250
0
-30
15T∼ 35L
15T∼ 44L
30T∼ 20L
30T∼ 29L
37T∼ 13L
40T ∼10L
46T∼ 13L
250
280
280
315
0
-35
18T∼ 40L
18T∼ 49L
35T∼ 23L
35T∼ 32L
42T∼ 16L
46.5T∼11.5L
51T∼ 16L
315
355
355
400
0
-40
22T∼ 43L
22T∼ 54L
40T∼ 25L
40T∼ 36L
47T∼ 18L
52.5T∼12.5L
58T∼ 18L
400
450
450
500
0
-45
25T∼ 47L
25T∼ 60L
45T∼ 27L
45T∼ 40L
52T∼ 20L
58.5T∼13.5L
65T∼ 20L
J7
Js7
K6
1 Above table is not applicable to tapered roller bearings whose bore diameter d is 30mm or less.
Table 7.5 (2) Fitting against housing
Nominal
outside
diameter of
bearing
Mean outside2
diameter
deviation
D
∆Dmp
G7
housing
bearing
H6
housing
bearing
H7
housing
bearing
J6
housing
bearing
housing
bearing
housing
bearing
housing
bearing
mm
over
incl.
high
low
6
10
0
-8
5L∼ 28L
0∼ 17L
0∼ 23L
4T∼ 13L
7T∼ 16L
7.5T∼15.5L
7T∼ 10L
10
18
0
-8
6L∼ 32L
0∼ 19L
0∼ 26L
5T∼ 14L
8T∼ 18L
9T ∼17L
9T∼ 10L
18
30
0
-9
7L∼ 37L
0∼ 22L
0∼ 30L
5T∼ 17L
9T∼ 21L
10.5T∼19.5L
11T∼ 11L
30
50
0
-11
9L∼ 45L
0∼ 27L
0∼ 36L
6T∼ 21L
11T∼ 25L
12.5T∼23.5L
13T∼ 14L
50
80
0
-13
10L∼ 53L
0∼ 32L
0∼ 43L
6T∼ 26L
12T∼ 31L
15T ∼28L
15T∼ 17L
80
120
0
-15
12L∼ 62L
0∼ 37L
0∼ 50L
6T∼ 31L
13T∼ 37L
17.5T∼32.5L
18T∼ 19L
120
150
0
-18
14L∼ 72L
0∼ 43L
0∼ 58L
7T∼ 36L
14T∼ 44L
20T ∼38L
21T∼ 22L
150
180
0
-25
14L∼ 79L
0∼ 50L
0∼ 65L
7T∼ 43L
14T∼ 51L
20T ∼45L
21T∼ 29L
180
250
0
-30
15L∼ 91L
0∼ 59L
0∼ 76L
7T∼ 52L
16T∼ 60L
23T ∼53L
24T∼ 35L
250
315
0
-35
17L∼104L
0∼ 67L
0∼ 87L
7T∼ 60L
16T∼ 71L
26T ∼61L
27T∼ 40L
315
400
0
-40
18L∼115L
0∼ 76L
0∼ 97L
7T∼ 69L
18T∼ 79L
28.5T∼68.5L
29T∼ 47L
400
500
0
-45
20L∼128L
0∼ 85L
0∼108L
7T∼ 78L
20T∼ 88L
31.5T∼76.5L
32T∼ 53L
2 Above table is not applicable to tapered roller bearings whose outside diameter D is 150mm or less.
Note: Fitting symbol "L" indicates clearance and "T" indicates interference.
A-54
●Bearing Fits
Unitμm
js6
k5
bearing
shaft
k6
bearing
shaft
m5
bearing
shaft
bearing
m6
shaft
bearing
n6
shaft
bearing
p6
shaft
bearing
r6
shaft
bearing
shaft
Nominal bore
diameter of
bearing
d
mm
over
incl.
12T ∼ 4L
14T∼ 1T
17T∼ 1T
17T∼ 4T
20T∼ 4T
24T∼ 8T
28T∼ 12T
−
−
3
6
12.5T∼ 4.5L
15T∼ 1T
18T∼ 1T
20T∼ 6T
23T∼ 6T
27T∼10T
32T∼ 15T
−
−
6
10
13.5T∼ 5.5L
17T∼ 1T
20T∼ 1T
23T∼ 7T
26T∼ 7T
31T∼12T
37T∼ 18T
−
−
10
18
16.5T∼ 6.5L
21T∼ 2T
25T∼ 2T
27T∼ 8T
31T∼ 8T
38T∼15T
45T∼ 22T
−
−
18
30
20T ∼ 8L
25T∼ 2T
30T∼ 2T
32T∼ 9T
37T∼ 9T
45T∼17T
54T∼ 26T
−
−
30
50
24.5T∼ 9.5L
30T∼ 2T
36T∼ 2T
39T∼11T
45T∼11T
54T∼20T
66T∼ 32T
−
−
50
80
31T ∼11L
38T∼ 3T
45T∼ 2T
48T∼13T
55T∼13T
65T∼23T
79T∼ 37T
−
−
80
120
120
140
160
140
160
180
37.5T∼12.5L
46T∼ 3T
53T∼ 3T
58T∼15T
65T∼15T
77T∼27T
93T∼ 43T
113T∼ 63T
115T∼ 65T
118T∼ 68T
44.5T∼14.5L
54T∼ 4T
63T∼ 4T
67T∼17T
76T∼17T
90T∼31T
109T∼ 50T
136T∼ 77T
139T∼ 80T
143T∼ 84T
180
200
225
200
225
250
51T ∼16L
62T∼ 4T
71T∼ 4T
78T∼20T
87T∼20T
101T∼34T
123T∼ 56T
161T∼ 94T
165T∼ 98T
250
280
280
315
58T ∼18L
69T∼ 4T
80T∼ 4T
86T∼21T
97T∼21T
113T∼37T
138T∼ 62T
184T∼108T
190T∼114T
315
355
355
400
65T ∼20L
77T∼ 5T
90T∼ 4T
95T∼23T
108T∼23T
125T∼40T
153T∼ 68T
211T∼126T
217T∼132T
400
450
450
500
Unitμm
K7
housing
bearing
M7
housing
bearing
N7
housing
bearing
P7
housing
bearing
Nominal
outside
diameter of
bearing
D
mm
over
incl.
10T∼ 13L
15T∼ 8L
19T∼ 4L
24T∼ 1T
6
10
12T∼ 14L
18T∼ 8L
23T∼ 3L
29T∼ 3T
10
18
15T∼ 15L
21T∼ 9L
28T∼ 2L
35T∼ 5T
18
30
18T∼ 18L
25T∼ 11L
33T∼ 3L
42T∼ 6T
30
50
21T∼ 22L
30T∼ 13L
39T∼ 4L
51T∼ 8T
50
80
25T∼ 25L
35T∼ 15L
45T∼ 5L
59T∼ 9T
80
120
28T∼ 30L
40T∼ 18L
52T∼ 6L
68T∼10T
120
150
28T∼ 37L
40T∼ 25L
52T∼ 13L
68T∼ 3T
150
180
33T∼ 43L
46T∼ 30L
60T∼ 16L
79T∼ 3T
180
250
36T∼ 51L
52T∼ 35L
66T∼ 21L
88T∼ 1T
250
315
40T∼ 57L
57T∼ 40L
73T∼ 24L
98T∼ 1T
315
400
45T∼ 63L
63T∼ 45L
80T∼ 28L
400
500
108T∼ 0
A-55
●Bearing Fits
Table 7.6 General fitting standards for tapered roller bearings using US customary unit (ANSI class 4)
Table 7.6 (1) Fit with shaft
Unitμm
Nominal bearing
bore diameter
d mm
over
incl.
Bore diameter
tolerance
∆ds
high
low
Shaft diameter
tolerance
high
low
max
Ordinary load
∼ 76.2
76.2 ∼ 304.8
304.8 ∼ 609.6
609.6 ∼ 914.4
+13
+25
+51
+76
0
0
0
0
+ 38
+ 64
+127
+190
+ 25
+ 38
+ 76
+114
38T
64T
127T
190T
Heavy load
Impact load
∼ 76.2
76.2 ∼ 304.8
304.8 ∼ 609.6
609.6 ∼ 914.4
+13
+25
+51
+76
0
0
0
0
+ 64 + 38
38T ∼ 12T
0.5 μm mean interference per 1 mm of inner ring bore
diameter. Minimum interference is 25 μm. Tolerance for the
shaft is adjusted to match tolerance of bearing bore diameter.
Inner ring does
not have to
move easily
over shaft with
ordinary load.
∼ 76.2
76.2 ∼ 304.8
304.8 ∼ 609.6
609.6 ∼ 914.4
+13
+25
+51
+76
0
0
0
0
+
+
+
+
Inner ring must
move easily
over shaft with
ordinary load.
∼ 76.2
76.2 ∼ 304.8
304.8 ∼ 609.6
609.6 ∼ 914.4
+13
+25
+51
+76
0
0
0
0
Operating conditions
Inner ring rotational load
Outer ring rotational load
13
25
51
76
0
0
0
0
-
Fitting
1
Remark
min
∼
∼
∼
∼
12T
13T
25T
38T
0
0
0
0
13T
25T
51T
76T
∼
∼
∼
∼
13L
25L
51L
76L
13
25
51
76
0
0
0
0
∼
∼
∼
∼
13L
50L
102L
152L
Applicable when
slight impact
load is applied
as well.
Not applicable
when impact
load is applied.
Table 7.6 (2) Fit with housing
Operating conditions
Unitμm
Nominal bearing
outer diameter
D mm
over
incl.
Outer diameter
tolerance
∆Ds
high
low
Housing bore
diameter tolerance
Fitting
1
Types of fit
high
low
max
min
Inner ring rotational load
Outer ring
rotational load
When used on
floating- or
fixed side
76.2
127.0
304.8
609.6
∼
∼
∼
∼
∼
76.2
127.0
304.8
609.6
914.4
+25
+25
+25
+51
+76
0
0
0
0
0
+ 76
+ 76
+ 76
+152
+229
+ 51
+ 51
+ 51
+102
+152
26L
26L
26L
51L
76L
∼
∼
∼
∼
∼
76L
76L
76L
152L
229L
loose fit
When outer
ring is adjusted
in axial
direction
76.2
127.0
304.8
609.6
∼
∼
∼
∼
∼
76.2
127.0
304.8
609.6
914.4
+25
+25
+25
+51
+76
0
0
0
0
0
+ 25
+ 25
+ 51
+ 76
+127
0
0
0
+ 26
+ 51
25T
25T
25T
25T
25T
∼
∼
∼
∼
∼
25L
25L
51L
76L
127L
transition fit
When outer
ring is not
adjusted in
axial direction
76.2
127.0
304.8
609.6
∼
∼
∼
∼
∼
76.2
127.0
304.8
609.6
914.4
+25
+25
+25
+51
+76
0
0
0
0
0
-
13
25
25
25
25
- 38
- 51
- 51
- 76
-102
63T
76T
76T
127T
178T
∼
∼
∼
∼
∼
13T
25T
25T
25T
25T
76.2
127.0
304.8
609.6
∼
∼
∼
∼
∼
76.2
127.0
304.8
609.6
914.4
+25
+25
+25
+51
+76
0
0
0
0
0
-
13
25
25
25
25
- 38
- 51
- 51
- 76
-102
63T
76T
76T
127T
178T
∼
∼
∼
∼
∼
13T
25T
25T
25T
25T
When outer
ring is not
adjusted in
axial direction
1 Fitting symbol "L" indicates clearance and "T" indicates interference.
A-56
tight fit
●Bearing Fits
Table 7.7 General fitting standards for tapered roller bearings using US customary unit (ANSI classes 3 and 0)
Table 7. (1) Fit with shaft
Operating conditions
Unitμm
Nominal bearing
bore diameter
d mm
over
incl.
Bore diameter
tolerance
∆ds
high
low
Shaft diameter
tolerance
high
low
Fitting
max
1
min
Outer ring
Inner ring rotational load rotational
load
30T ∼ 5T
64T ∼ 13T
102T ∼ 26T
Precision
machine tool
spindles
∼ 304.8
304.8 ∼ 609.6
609.6 ∼ 914.4
+13
+25
+38
0
0
0
+ 30
+ 64
+102
Heavy load
Impact load
High-speed
rotation
∼ 76.2
76.2 ∼ 304.8
304.8 ∼ 609.6
609.6 ∼ 914.4
+13
+13
+25
+38
0
0
0
0
Minimum interference is 0.25 μm per
inner ring bore diameter.
Precision
machine tool
spindles
∼ 304.8
304.8 ∼ 609.6
609.6 ∼ 914.4
+13
+25
+38
0
0
0
+ 13
+ 25
+102
+ 18
+ 38
+ 64
0
0
0
30T ∼ 5T
64T ∼ 13T
102T ∼ 26T
Note: For class 0, bearing bore diameter d applies to 241.3 mm or less.
Table 7.7 (2) Fit with housing
Operating conditions
Unitμm
Nominal bearing
outer diameter
D mm
over
incl.
Outer diameter
tolerance
∆Ds
high
low
Housing bore
diameter tolerance
high
low
Fitting
1
Type of fit
max
min
∼
152.4 ∼
304.8 ∼
609.6 ∼
152.4
304.8
609.6
914.4
+13
+13
+25
+38
0
0
0
0
+
+
+
+
38
38
64
89
+
+
+
+
25
25
38
51
12L
12L
13L
13L
∼
∼
∼
∼
38L
38L
64L
89L
When used for
fixed side
∼
152.4 ∼
304.8 ∼
609.6 ∼
152.4
304.8
609.6
914.4
+13
+13
+25
+38
0
0
0
0
+
+
+
+
25
25
51
76
+
+
+
+
13
13
25
38
0
0
0
0
∼
∼
∼
∼
25L
25L
51L
76L
When outer
ring is adjusted
in axial direction
∼ 152.4
152.4 ∼ 304.8
304.8 ∼ 609.6
609.6 ∼ 914.4
+13
+13
+13
+38
0
0
0
0
+
+
+
+
13
13
25
38
0
0
0
0
13T
13T
25T
38T
∼
∼
∼
∼
13L
13L
25L
38L
When outer
ring is not
adjusted in
axial direction
∼ 152.4
152.4 ∼ 304.8
304.8 ∼ 609.6
609.6 ∼ 914.4
+13
+13
+25
+38
0
0
0
0
Ordinary load
When outer ring
is not adjusted
in axial direction
∼
152.4 ∼
304.8 ∼
609.6 ∼
+13
+13
+25
+38
0
0
0
0
When used for
floating-side
Inner ring rotational load
Outer ring
rotational load
152.4
304.8
609.6
914.4
-
0
0
0
0
-
13
25
25
38
26T
38T
50T
76T
∼
∼
∼
∼
0
0
0
0
13
13
13
13
-
25
38
38
51
38T
51T
63T
89T
∼
∼
∼
∼
13T
13T
13T
13T
1 Fitting symbol "L" indicates clearance and "T" indicates interference.
Note: For class 0, bearing outer diameter D applies to 304.8 mm or less.
A-57
loose fit
transition fit
tight fit
●Bearing Internal Clearance and Preload
8.
Bearing Internal Clearance and Preload
8.1
Bearing internal clearance
8.2.1 Criteria for selecting bearing internal clearance
A bearing's life is theoretically maximum when
operating clearance is slightly negative at steady
operation. In reality it is however difficult to constantly
maintain this optimal condition. If the negative clearance
becomes enlarged by fluctuating operating conditions,
heat will be produced and life will decrease dramatically.
Under ordinary circumstances you should therefore
select an initial internal clearance where the operating
clearance is slightly larger than zero.
For ordinary operating conditions, use fitting for
ordinary loads. If rotational speed and operating
temperature are ordinary, selecting normal clearance
enables you to obtain the proper operating clearance.
Table 8.2 gives examples applying internal clearances
other than CN (normal) clearance.
Bearing internal clearance is the amount of internal free
movement before mounting.
As shown in Fig. 8.1, when either the inner ring or the
outer ring is fixed and the other ring is free to move,
displacement can take place in either an axial or radial
direction. This amount of displacement (radially or axially)
is termed the internal clearance and, depending on the
direction, is called the radial internal clearance or the
axial internal clearance.
When the internal clearance of a bearing is measured, a
slight measurement load is applied to the raceway so the
internal clearance may be measured accurately.
However, at this time, a slight amount of elastic
deformation of the bearing occurs under the measurement
load, and the clearance measurement value (measured
clearance) is slightly larger than the true clearance. This
difference between the true bearing clearance and the
increased amount due to the elastic deformation must be
compensated for. These compensation values are given in
Table 8.1. For roller bearings the amount of elastic
deformation can be ignored.
8.2.2 Calculation of operating clearance
Operating clearance of a bearing can be calculated
from initial bearing internal clearance and decrease in
internal clearance due to interference and decrease in
internal clearance due to difference in temperature of the
inner and outer rings.
δeff ＝δo −（δf ＋δt ）…………………（8.1）
where,
δeff : Effective internal clearance, mm
δo : Bearing internal clearance, mm
δf : Reduced amount of clearance due to
The internal clearance values for each bearing class are
shown in Tables 8.3 through 8.11.
8.2
Internal clearance selection
The internal clearance of a bearing under operating
conditions (effective clearance) is usually smaller than the
same bearing's initial clearance before being installed and
operated. This is due to several factors including bearing
fit, the difference in temperature between the inner and
outer rings, etc. As a bearing's operating clearance has
an effect on bearing life, heat generation, vibration, noise,
etc.; care must be taken in selecting the most suitable
operating clearance.
Table 8.1 Adjustment of radial internal clearance based on
measured load (deep groove ball bearing)
Unitμm
Nominal Bore Diameter
Measuring Load Internal clearance adjustmen
d mm
N｛kgf｝
C2
CN C3 C4 C5
over
incl.
10 1
18
50
18
50
200
24.5
49
147
｛2.5｝
｛5｝
｛15｝
3∼4
4∼5
6∼8
4
5
8
4
6
9
4
6
9
1 This diameter is included in the group.
Table 8.2 Examples of applications where bearing clearances
other than CN (normal) clearance are used
δ2
Operating conditions
δ
Applications
Railway vehicle axles
With heavy or shock
load, clearance is large. Vibration screens
Railway vehicle traction
With indeterminate load, motors
both inner and outer
rings are tight-fitted.
Tractors and final speed
regulators
δ1
Axial clearance =δ1＋δ2
Fig. 8.1 Internal clearance
A-58
Selected clearance
C3
C3，C4
C4
C4
Paper making machines
and driers
C3，C4
Rolling mill table rollers
C3
Reduction of noise and
vibration when rotating.
Micromotors
C2，CM
Adjustment of clearance
to minimize shaft runout.
Main spindles of lathes
(Double-row cylindrical roller
bearings)
C9NA，
C0NA
Loose fitting for both
inner and outer rings.
Compressor roll neck
C2
Shaft or inner ring is
heated.
Radial clearance =δ
4
6
9
●Bearing Internal Clearance and Preload
interference, mm
δt : Reduced amount of clearance due to
temperature differential of inner and outer
rings, mm
shaft is connected to a heat source, or a heated
substance is conducted through the hollow shaft; the
temperature difference between the two rings can be
even greater. The amount of internal clearance is thus
further reduced by the differential expansion of the
two rings.
(1) Reduced clearance due to interference
When bearings are installed with interference fits on
shafts and in housings, the inner ring will expand and the
outer ring will contract; thus reducing the bearings'
internal clearance. The amount of expansion or
contraction varies depending on the shape of the
bearing, the shape of the shaft or housing, dimensions of
the respective parts, and the type of materials used. The
differential can range from approximately 70% to 90% of
the effective interference.
δt ＝α・∆T・Do ………………………… (8.3)
where,
δt : Amount of reduced clearance due to heat
differential, mm
α : Bearing material expansion coefficient
12.5 × 10-6/˚C
∆T : Inner/outer ring temperature differential, ℃
Do : Outer ring raceway diameter, mm
δf ＝ (0.70∼0.90) ∆deff …………………… (8.2)
where,
δf : Reduced amount of clearance due to
interference, mm
∆deff : Effective interference, mm
Outer ring raceway diameter, Do, values can be
approximated by using formula (8.4) or (8.5).
For ball bearings and spherical roller bearings,
Do ＝ 0.20 (d ＋ 4.0D) ……………………… (8.4)
For roller bearings (except Spherical roller bearing),
Do ＝ 0.25 (d ＋ 3.0D) ……………………… (8.5)
where,
d : Bearing bore diameter, mm
D : Bearing outside diameter, mm
(2) Reduced internal clearance due to inner/outer ring
temperature difference.
During operation, normally the outer ring will range
from 5 to 10˚C cooler than the inner ring or rotating parts.
However, if the cooling effect of the housing is large, the
Table 8.3 Radial internal clearance of deep groove ball bearings
Nominal bore diameter
d mm
over
incl.
C2
Unitμm
CN
C5
C4
C3
min
max
min
max
min
max
min
max
min
max
― 2.5
6
2.5
6
10
0
0
0
6
7
7
4
2
2
11
13
13
10
8
8
20
23
23
― ― 14
― ― 29
― ― 20
― ― 37
10
18
24
18
24
30
0
0
1
9
10
11
3
5
5
18
20
20
11
13
13
25
28
28
18
20
23
33
36
41
25
28
30
45
48
53
30
40
50
40
50
65
1
1
1
11
11
15
6
6
8
20
23
28
15
18
23
33
36
43
28
30
38
46
51
61
40
45
55
64
73
90
65
80
100
80
100
120
1
1
2
15
18
20
10
12
15
30
36
41
25
30
36
51
58
66
46
53
61
71
84
97
65
75
90
105
120
140
120
140
160
140
160
180
2
2
2
23
23
25
18
18
20
48
53
61
41
46
53
81
91
102
71
81
91
114
130
147
105
120
135
160
180
200
180
200
225
200
225
250
2
2
2
30
35
40
25
25
30
71
85
95
63
75
85
117
140
160
107
125
145
163
195
225
150
175
205
230
265
300
250
280
315
280
315
355
2
2
3
45
55
60
35
40
45
105
115
125
90
100
110
170
190
210
155
175
195
245
270
300
225
245
275
340
370
410
355
400
450
400
450
500
3
3
3
70
80
90
55
60
70
145
170
190
130
150
170
240
270
300
225
250
280
340
380
420
315
350
390
460
510
570
500
560
560
630
10
10
100
110
80
90
210
230
190
210
330
360
310
340
470
520
440
490
630
690
A-59
●Bearing Internal Clearance and Preload
Table 8.4 Radial internal clearance of self-aligning ball bearings
Nominal bore diameter
Bearing with cylindrical bore
d mm
over
incl.
C2
min
CN
max
min
C3
C4
C5
max
min
max
min
max
min
max
2.5
6
10
6
10
14
1
2
2
8
9
10
5
6
6
15
17
19
10
12
13
20
25
26
15
19
21
25
33
35
21
27
30
33
42
48
14
18
24
18
24
30
3
4
5
12
14
16
8
10
11
21
23
24
15
17
19
28
30
35
23
25
29
37
39
46
32
34
40
50
52
58
30
40
50
40
50
65
6
6
7
18
19
21
13
14
16
29
31
36
23
25
30
40
44
50
34
37
45
53
57
69
46
50
62
66
71
88
65
80
100
80
100
120
8
9
10
24
27
31
18
22
25
40
48
56
35
42
50
60
70
83
54
64
75
83
96
114
76
89
105
108
124
145
120
140
140
160
10
15
38
44
30
35
68
80
60
70
100
120
90
110
135
161
125
150
175
210
Table 8.5 (1) Radial internal clearance for duplex angular contact
ball bearings
Unit μm
Table 8.5 (2) Radial internal clearance of self-aligning ball bearings
Nominal bore
C1
diameter
d mm
min max
over incl.
Nominal bore
C2
diameter
d mm
min max
over incl.
―
10
18
C2
CN
C3
C4
min max
min max
min max
min max
10
18
30
3
3
3
8
8
10
6
6
6
12
12
12
8
8
10
15
15
20
15
15
20
22
24
32
22
30
40
30
40
55
30 50
50 80
80 100
3
3
3
10
11
13
8
11
13
14
17
22
14
17
22
25
32
40
25
32
40
40
50
60
55
75
95
3
3
3
3
15
16
18
20
15
16
18
20
30
33
35
40
30
35
35
40
50
55
60
65
50 75
55 80
60 90
65 100
110
130
150
180
100
120
150
180
120
150
180
200
Unit μm
CN
C3
C4
C5
min max
min max
min max
min max
10 only
10
18
18
24
0
1
1
10
11
11
5
6
6
15
16
16
10
12
13
21
23
24
16
19
21
28
31
33
24
28
31
36
40
43
75
95
120
24
30
40
30
40
50
1
2
2
13
15
15
6
7
9
19
22
24
13
15
17
26
30
32
21
24
28
35
39
45
31
35
40
45
50
57
140
170
200
240
50
65
80
65
80
100
0
1
3
15
17
20
7
11
13
24
31
36
16
21
25
33
42
49
28
34
40
48
56
65
41
50
58
61
74
67
Note: The clearance group in the table is applied only to contact angles in the table below.
Table 8.6 Radial internal clearance of bearings for electric motor
Unitμm
Contact angle
symbol
C
1
A
B
Nominal contact
angle
15˚
30˚
40˚
Applicable clearance group 2
Nominal bore
diameter
d mm
over
incl.
C1，C2
C2，CN，C3
CN，C3，C4
1 Not indicated for bearing number.
2 For information concerning clearance other than applicable
clearance, please contact NTN Engineering.
Radial internal clearance CM
Deep groove ball bearings Cylindrical roller bearings
min
max
min
max
10 (incl.)
18
24
18
24
30
4
5
5
11
12
12
―
―
15
―
―
30
30
40
50
40
50
65
9
9
12
17
17
22
15
20
25
30
35
40
65
80
100
80
100
120
12
18
18
22
30
30
30
35
35
45
55
60
120
140
160
140
160
180
24
24
―
38
38
―
40
50
60
65
80
90
180
200
―
―
65
100
Note 1: Suffix CM is added to bearing numbers.
Example: 6205ZZCM
2: Clearance not interchangeable for cylindrical roller bearings.
A-60
●Bearing Internal Clearance and Preload
Unitμm
Nominal bore diameter
Bearing with tapered bore
C2
min
max
CN
min
max
C3
min
max
C4
min
max
C5
min
max
d mm over
incl.
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
2.5
6
10
6
10
14
―
7
9
―
17
20
―
13
15
―
26
28
―
20
23
―
33
39
―
28
33
―
42
50
―
37
44
―
55
62
14
18
24
18
24
30
12
14
18
24
27
32
19
22
27
35
39
47
29
33
41
46
52
61
40
45
56
59
65
80
52
58
73
72
79
99
30
40
50
40
50
65
23
29
35
39
47
56
35
42
50
57
68
81
50
62
75
75
90
108
69
84
100
98
116
139
91
109
130
123
144
170
65
80
100
80
100
120
40
45
68
74
60
65
98
110
90
100
130
150
120
140
165
191
155
180
205
240
120
140
140
160
Table 8.7 Interchangeable radial internal clearance for cylindrical roller bearing (cylindrical bore)
Nominal bore diameter
d mm
over
incl.
CN
C2
C3
Unitμm
C4
C5
min
max
min
max
min
max
min
max
min
max
― 10
24
10
24
30
0
0
0
25
25
25
20
20
20
45
45
45
35
35
35
60
60
60
50
50
50
75
75
75
30
40
50
40
50
65
5
5
10
30
35
40
25
30
40
50
60
70
45
50
60
70
80
90
60
70
80
85
100
110
80
95
110
105
125
140
65
80
100
80
100
120
10
15
15
45
50
55
40
50
50
75
85
90
65
75
85
100
110
125
90
105
125
125
140
165
130
155
180
165
190
220
120
140
160
140
160
180
15
20
25
60
70
75
60
70
75
105
120
125
100
115
120
145
165
170
145
165
170
190
215
220
200
225
250
245
275
300
180
200
225
200
225
250
35
45
45
90
105
110
90
105
110
145
165
175
140
160
170
195
220
235
195
220
235
250
280
300
275
305
330
330
365
395
250
280
315
280
315
355
55
55
65
125
130
145
125
130
145
195
205
225
190
200
225
260
275
305
260
275
305
330
350
385
370
410
455
440
485
535
355
400
450
400
450
500
100
110
110
190
210
220
190
210
220
280
310
330
280
310
330
370
410
440
370
410
440
460
510
550
510
565
625
600
665
735
A-61
― 65
70
― 90
95
●Bearing Internal Clearance and Preload
Table 8.8 Non-interchangeable radial internal clearance for cylindrical roller bearing
Nominal bore
diameter
d mm
over
incl.
Bearing with cylindrical bore
C1NA
NA1
C2NA
min
max
min
max
min
max
C3NA
min
max
C4NA
min
max
C5NA
min
max
―
10
18
10
18
24
5
5
5
10
10
10
10
10
10
20
20
20
20
20
20
30
30
30
35
35
35
45
45
45
45
45
45
55
55
55
―
65
65
―
75
75
24
30
40
30
40
50
5
5
5
10
12
15
10
12
15
25
25
30
25
25
30
35
40
45
40
45
50
50
55
65
50
55
65
60
70
80
70
80
95
80
95
110
50
65
80
65
80
100
5
10
10
15
20
25
15
20
25
35
40
45
35
40
45
50
60
70
55
70
80
75
90
105
75
90
105
90
110
125
110
130
155
130
150
180
100
120
140
120
140
160
10
15
15
25
30
35
25
30
35
50
60
65
50
60
65
80
90
100
95
105
115
120
135
150
120
135
150
145
160
180
180
200
225
205
230
260
160
180
200
180
200
225
15
20
20
35
40
45
35
40
45
75
80
90
75
80
90
110
120
135
125
140
155
165
180
200
165
180
200
200
220
240
250
275
305
285
315
350
225
250
280
250
280
315
25
25
30
50
55
60
50
55
60
100
110
120
100
110
120
150
165
180
170
185
205
215
240
265
215
240
265
265
295
325
330
370
410
380
420
470
315
355
400
450
355
400
450
500
30
35
45
50
65
75
85
95
65
75
85
95
135
150
170
190
135
150
170
190
200
225
255
285
225
255
285
315
295
330
370
410
295
330
370
410
360
405
455
505
455
510
565
625
520
585
650
720
1 For bearings with normal clearance, only NA is added to bearing numbers. Ex. NU310NA
Table 8.9 Axial internal clearance for double row and duplex tapered roller bearings (metric series)
Nominal bore
diameter
d mm
over
incl.
Contact angleα≦27˚ (e ≦ 0.76)
C2
C3
CN
C4
min
max
min
max
min
max
min
max
18
24
30
24
30
40
25
25
25
75
75
95
75
75
95
125
125
165
125
145
165
170
195
235
170
195
210
220
245
280
40
50
65
50
65
80
20
20
20
85
85
110
85
110
130
150
175
220
175
195
240
240
260
325
240
280
325
305
350
410
80
100
120
100
120
140
45
45
45
150
175
175
150
175
175
260
305
305
280
350
390
390
480
520
390
455
500
500
585
630
140
160
180
160
180
200
60
80
100
200
220
260
200
240
260
340
380
420
400
440
500
540
580
660
520
600
660
660
740
820
200
225
250
225
250
280
120
160
180
300
360
400
300
360
400
480
560
620
560
620
700
740
820
920
720
820
920
900
1,020
1,140
280
315
355
400
315
355
400
500
200
220
260
300
440
480
560
600
440
500
560
620
680
760
860
920
780
860
980
1,100
1,020
1,120
1,280
1,400
1,020
1,120
1,280
1,440
1,260
1,380
1,580
1,740
Note1: This table applies to bearings contained in the catalog. For information concerning other bearings or bearings using US customary unit, please contact NTN Engineering.
2: The correlation of axial internal clearance (∆a) and radial internal clearance (∆r) is expressed as ∆r = 0.667 ・ e・∆a.
e: Constant (see dimensions table)
3: Bearing series 329X, 330, 322C and 323Cdo not apply to the table.
A-62
●Bearing Internal Clearance and Preload
Unitμm
Nominal bore
diameter
d mm
over
incl.
Bearing with tapered bore
2
C9NA
min
max
2
C0NA
min
max
C1NA
min
max
C2NA
min
max
1
NA
min
max
C3NA
min
max
5
5
5
5
10
10
7
7
7
17
17
17
10
10
10
20
20
20
20
20
20
30
30
30
35
35
35
45
45
45
45
45
45
55
55
55
―
10
18
10
18
24
5
5
5
10
12
15
10
10
10
20
20
20
10
12
15
25
25
30
25
25
30
35
40
45
40
45
50
50
55
65
50
55
65
60
70
80
24
30
40
30
40
50
5
10
10
15
20
25
10
15
20
20
30
35
15
20
25
35
40
45
35
40
45
50
60
70
55
70
80
75
90
105
75
90
105
90
110
125
50
65
80
65
80
100
10
15
15
25
30
35
20
25
30
35
40
45
25
30
35
50
60
65
50
60
65
80
90
100
95
105
115
120
135
150
120
135
150
145
160
180
100
120
140
120
140
160
15
20
20
35
40
45
30
30
35
45
50
55
35
40
45
75
80
90
75
80
90
110
120
135
125
140
155
165
180
200
165
180
200
200
220
240
160
180
200
180
200
225
25
25
30
50
55
60
40
40
45
65
65
75
50
55
60
100
110
120
100
110
120
150
165
180
170
185
205
215
240
265
215
240
265
265
295
325
225
250
280
250
280
315
30
35
45
50
65
75
85
95
45
50
60
70
75
90
100
115
65
75
85
95
135
150
170
190
135
150
170
190
200
225
255
285
225
255
285
315
295
330
370
410
295
330
370
410
360
405
455
505
315
355
400
450
355
400
450
500
2 C9NA, C0NA and C1NA are applied only to precision bearings of Class 5 and higher.
Unitμm
Contact angleα＞ 27˚ (e ＞ 0.76)
C2
min
Nominal bore diameter
C3
CN
C4
d mm
over
max
min
max
min
max
min
max
10
10
10
30
30
40
30
30
40
50
50
70
50
60
70
70
80
100
70
80
90
90
100
120
18
24
30
24
30
40
10
10
10
40
40
50
40
50
60
70
80
100
80
90
110
110
120
150
110
130
150
140
160
190
40
50
65
50
65
80
20
20
20
70
70
70
70
70
70
120
120
120
130
150
160
180
200
210
180
210
210
230
260
260
80
100
120
100
120
140
30
―
―
100
―
―
100
―
―
160
―
―
180
―
―
240
―
―
240
―
―
300
―
―
140
160
180
160
180
200
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
200
225
250
225
250
280
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
280
315
355
400
315
355
400
500
A-63
incl.
●Bearing Internal Clearance and Preload
Table 8.10 Radial internal clearance of spherical roller bearings
Nominal bore diameter
d mm
over
incl.
14
18
24
Bearing with cylindrical bore
C2
CN
C3
C4
C5
min
max
min
max
min
max
min
max
min
max
18
24
30
10
10
15
20
20
25
20
20
25
35
35
40
35
35
40
45
45
55
45
45
55
60
60
75
60
60
75
75
75
95
30
40
50
40
50
65
15
20
20
30
35
40
30
35
40
45
55
65
45
55
65
60
75
90
60
75
90
80
100
120
80
100
120
100
125
150
65
80
100
80
100
120
30
35
40
50
60
75
50
60
75
80
100
120
80
100
120
110
135
160
110
135
160
145
180
210
145
180
210
180
225
260
120
140
160
140
160
180
50
60
65
95
110
120
95
110
120
145
170
180
145
170
180
190
220
240
190
220
240
240
280
310
240
280
310
300
350
390
180
200
225
200
225
250
70
80
90
130
140
150
130
140
150
200
220
240
200
220
240
260
290
320
260
290
320
340
380
420
340
380
420
430
470
520
250
280
315
280
315
355
100
110
120
170
190
200
170
190
200
260
280
310
260
280
310
350
370
410
350
370
410
460
500
550
460
500
550
570
630
690
355
400
450
400
450
500
130
140
140
220
240
260
220
240
260
340
370
410
340
370
410
450
500
550
450
500
550
600
660
720
600
660
720
750
820
900
500
560
630
560
630
710
150
170
190
280
310
350
280
310
350
440
480
530
440
480
530
600
650
700
600
650
700
780
850
920
780
850
920
1,000
1,100
1,190
710
800
900
800
900
1,000
210
230
260
390
430
480
390
430
480
580
650
710
580
650
710
770
860
930
770
860
930
1,010
1,120
1,220
1,010
1,120
1,220
1,300
1,440
1,570
1,000
1,120
1,250
1,120
1,250
1,400
290
320
350
530
580
640
530
580
640
780
860
950
780
860
950
1,020
1,120
1,240
1,020
1,120
1,240
1,330
1,460
1,620
1,330
1,460
1,620
1,720
1,870
2,080
Table 8.11 Axial internal clearance of four points contact ball bearings
Nominal bore diameter
d mm
C2
Unit μm
CN
C3
C4
over
incl.
min
max
min
max
min
max
min
max
17
40
60
40
60
80
26
36
46
66
86
96
56
76
86
106
126
136
96
116
126
146
166
176
136
156
166
186
206
226
80
100
140
180
100
140
180
220
56
66
76
96
106
126
156
176
96
116
136
156
156
176
196
216
136
156
176
196
196
216
236
256
186
206
226
246
246
266
296
316
A-64
●Bearing Internal Clearance and Preload
Unitμm
Nominal bore diameter
Bearing with tapered bore
C2
min
max
CN
min
max
C3
min
max
C4
min
max
C5
min
max
d mm
over
incl.
―
15
20
―
25
30
―
25
30
―
35
40
―
35
40
―
45
55
―
45
55
―
60
75
―
60
75
―
75
95
14
18
24
18
24
30
25
30
40
35
45
55
35
45
55
50
60
75
50
60
75
65
80
95
65
80
95
85
100
120
85
100
120
105
130
160
30
40
50
40
50
65
50
55
65
70
80
100
70
80
100
95
110
135
95
110
135
120
140
170
120
140
170
150
180
220
150
180
220
200
230
280
65
80
100
80
100
120
80
90
100
120
130
140
120
130
140
160
180
200
160
180
200
200
230
260
200
230
260
260
300
340
260
300
340
330
380
430
120
140
160
140
160
180
110
120
140
160
180
200
160
180
200
220
250
270
220
250
270
290
320
350
290
320
350
370
410
450
370
410
450
470
520
570
180
200
225
200
225
250
150
170
190
220
240
270
220
240
270
300
330
360
300
330
360
390
430
470
390
430
470
490
540
590
490
540
590
620
680
740
250
280
315
280
315
355
210
230
260
300
330
370
300
330
370
400
440
490
400
440
490
520
570
630
520
570
630
650
720
790
650
720
790
820
910
1,000
355
400
450
400
450
500
290
320
350
410
460
510
410
460
510
540
600
670
540
600
670
680
760
850
680
760
850
870
980
1,090
870
980
1,090
1,100
1,230
1,360
500
560
630
560
630
710
390
440
490
570
640
710
570
640
710
750
840
930
750
840
930
960
1,070
1,190
960
1,070
1,190
1,220
1,370
1,520
1,220
1,370
1,520
1,500
1,690
1,860
710
800
900
800
900
1,000
530
570
620
770
830
910
770
830
910
1,030
1,120
1,230
1,030
1,120
1,230
1,300
1,420
1,560
1,300
1,420
1,560
1,670
1,830
2,000
1,670
1,830
2,000
2,050
2,250
2,470
1,000
1,120
1,250
1,120
1,250
1,400
A-65
●Bearing Internal Clearance and Preload
(1) Bearing's rigidity increases, internal clearance tends
not to be produced even when heavy load is applied.
(2) The particular frequency of the bearing increases and
is becomes suitable for high-speed rotation.
(3) Shaft runout is suppressed; rotation and position
precision are enhanced.
(4) Vibration and noise are controlled.
(5) Sliding of rolling elements by turning, spinning, or
pivoting, is controlled and smearing is reduced.
(6) Fretting produced by external vibration is prevented.
8.3 Preload
Normally, bearings are used with a slight internal
clearance under operating conditions. However, in some
applications, bearings are given an initial load; this means
that the bearings' internal clearance is negative before
operation. This is called "preload" and is commonly
applied to angular ball bearings and tapered roller
bearings.
8.3.1 Purpose of preload
The following results are obtained by constant elastic
compressive force applied to the contact points of rolling
elements and raceway by providing preload.
Applying excessive preload could result in
reduction of life, abnormal heating, or increase in
turning torque. You should therefore consider the
objectives before determining the amount of preload.
Table 8.12 Preloading methods and characteristics
Method
Basic pattern
Applicable bearings
Fixed position preload
Constant pressure preload
Δ
Note: In the above formulas
Characteristics
Applications
Maintaining
accuracy of
rotating shaft,
Angular contact preventing
ball bearings
vibration
increasing
rigidity
Preloading is accomplished by
a predetermined offset of the
rings or by using spacers. For
the standard preload see Table
8.13.
Grinding machines,
lathes,
milling machines,
measuring instruments
Tapered roller
bearings, thrust Increasing
ball bearings,
bearing rigidity
angular contact
ball bearings
Preload is accomplished by
adjusting a threaded screw.
The amount of preload is set by
measuring the starting torque or
axial displacement.
Lathes,
milling machines,
differential gears of automotives,
printing machines, wheel axles
Preloading is accomplished by
using coil or belleville springs.
for deep groove ball bearings:
4∼10 d N
0.4∼1.0 d ｛kgf｝
d: Shaft diameter mm
for angular contact ball bearings:
see Table 8.13.
Internal grinding machines,
electric motors,
high speed shafts in small machines,
tension reels
Angular contact
ball bearings,
deep groove
ball bearings,
tapered roller
bearings (high
speed)
Δ
Object
Maintaining
accuracy and
preventing
vibration and
noise with a
constant
amount of
preload without
being affected
by loads or
temperature
Preload is accomplished by
using coil or belleville springs.
Recommended preloads are as
follows:
Preload is
Spherical roller primarily used to for thrust ball bearings:
1.9
-13
thrust bearings, prevent
Rolling mills,
T1=0.42 (nCoa) ×10 N
1.9
-13 cylindrical roller smearing of
extruding machines
=3.275(nC
oa) ×10
｛kgf｝
thrust bearings, opposite axial
load side when T2=0.00083 Coa N｛kgf｝
thrust ball
bearing an axial which ever is greater
bearings
for spherical roller thrust bearings,
load.
cylindrical roller thrust bearing
T=0.025 Coa0.8 N
=0.0158 Coa0.8 ｛kgf｝
T = preload, N {kgf}
n = number of revolutions, min-1
Coa = basic static axial load rating, N {kgf}
A-66
●Bearing Internal Clearance and Preload
8.3.2 Preloading methods and amounts
The most common method of applying preload on a
bearing is change the relative position of the inner and
outer rings of the bearing in the axial direction while
applying an axial load between bearings on opposing
sides. There are two types of preload: fixed position
preload and constant pressure preload.
8.3.3 Preload and rigidity
The increased rigidity effect preloading has on bearings
is shown in Fig. 8.2. When the offset inner rings of the
two paired angular contact ball bearings are pressed
together, each inner ring is displaced axially by the
amount δ0 and is thus given a preload, F0, in the
direction. Under this condition, when external axial load
Fa is applied, bearing!will have an increased ,
displacement by the amount δa and bearing @s
displacement will decrease. At this time the loads applied
to bearing!and @ are F! and F@, respectively.
The basic pattern, purpose and characteristics of
bearing preloads are shown in Table 8.12. The fixed
position preload is effective for positioning the two
bearings and also for increasing the rigidity. Due to the
use of a spring for the constant pressure preload, the
preloading amount can be kept constantly, even when the
distance between the two bearings fluctuates under the
influence of operating heat and load.
Under the condition of no preload, bearing!will be
displaced by the amount δb when axial load Fa is
applied. Since the amount of displacement, δa, is less
than δb, it indicates a higher rigidity for δa.
Also, the standard preloading amount for the paired
angular contact ball bearings is shown in Table 8.13.
Light and normal preload is applied to prevent general
vibration, and medium and heavy preload is applied
especially when rigidity is required.
Bearing2 Bearing1
Axial load
Fa Fo
Fo
Bearing2
Outer ring Steel ball
Inner ring
(1) Before
preloading
δo
δb
δo
(2) Under
preloading
δo
Bearing1
δa
δo δo
δo
Fo
δa
F2
(3) Under preloading
and applied axial
load
δa
Inner ring axial
displacement
Fo : Preload
Fa
F1
Fa
Fo
Inner ring axial
displacement
F1= F2+ Fa
Fa: External axial load
δa
F2
Axial displacement
δ1
δo
δ2
δo
F1= F2+ Fa
Fig. 8.2 Fixed position preload model diagram and preload diagram
A-67
●Bearing Internal Clearance and Preload
Table 8.13 The normal preload of duplex angular contact ball bearings
Nominal
bore diameter
d mm
Bearing
78C
Low
GL
Normal
GN
79C, HSB9C
Central
GM
Heavy
GH
Low
GL
8｝
147｛ 15｝
20｛ 2｝
Normal
GN
70C, BNT0,
Central
GM
Heavy
GH
Low
GL
Normal
GN
over
inch
12
18
12
18
32
10
｛ 1｝
29｛ 3｝
32
40
50
40
50
65
10
｛ 1｝
20
｛ 2｝
29
｛ 3｝
29｛ 3｝
49｛ 5｝
98｛10｝
78
｛ 8｝
98
｛ 10｝
196
｛ 20｝
147｛ 15｝
196｛ 20｝
390｛ 40｝
65
80
90
80
90
95
29
｛ 3｝ 98｛10｝
49
｛ 5｝ 147
｛15｝
49
｛ 5｝ 147
｛15｝
196
｛ 20｝
294
｛ 30｝
294
｛ 30｝
390｛ 40｝
590｛ 60｝
590｛ 60｝
95
100
105
100
105
110
49
｛ 5｝ 147
｛15｝
49
｛ 5｝ 147
｛15｝
78
｛ 8｝ 196
｛20｝
294
｛ 30｝
294
｛ 30｝
490
｛ 50｝
110
120
140
120
140
150
78
｛ 8｝ 196
｛20｝
98
｛10｝ 294
｛30｝
147
｛15｝ 390
｛40｝
150
160
170
160
170
180
147｛15｝ 390
｛40｝
147
｛15｝ 490
｛50｝
147
｛15｝ 490
｛50｝
180
190
190
200
196
｛20｝ 590
｛60｝ 1,270
｛130｝ 2,450｛250｝ 294｛30｝ 880｛ 90｝ 1,960｛200｝ 3,900｛400｝ 590｛60｝ 1,470｛150｝
196
｛20｝ 590
｛60｝ 1,270｛130｝ 2,450
｛250｝ 490｛50｝ 1,270｛130｝ 2,940｛300｝ 5,900｛600｝ 590｛60｝ 1,470｛150｝
-
29｛
29｛
78｛
5｝
98｛ 10｝
29｛ 3｝
39｛ 4｝
49｛ 5｝
78｛ 8｝
98｛ 10｝
118｛ 12｝
196｛ 20｝
245｛ 25｝
294｛ 30｝
294｛ 30｝
490｛ 50｝
590｛ 60｝
49｛ 5｝
49｛ 5｝
98｛10｝
147｛ 15｝
147｛ 15｝
196｛ 20｝
78｛ 8｝
98｛10｝
98｛10｝
196｛ 20｝
245｛ 25｝
245｛ 25｝
390｛ 40｝
490｛ 50｝
490｛ 50｝
785｛ 80｝
98｛10｝
980｛100｝ 147｛15｝
980｛100｝ 147｛15｝
294｛ 30｝
390｛ 40｝
390｛ 40｝
590｛ 60｝ 118｛12｝
590｛ 60｝ 118｛12｝
980｛100｝ 118｛12｝
294｛ 30｝
294｛ 30｝
294｛ 30｝
685｛ 70｝ 1,470｛150｝ 147｛15｝
685｛ 70｝ 1,470｛150｝ 196｛20｝
685｛ 70｝ 1,470｛150｝ 196｛20｝
390｛ 40｝
590｛ 60｝
590｛ 60｝
490
｛ 50｝
980｛100｝ 147｛15｝
590
｛ 60｝ 1,270
｛130｝ 196｛20｝
785
｛ 80｝ 1,470｛150｝ 245｛25｝
390｛ 40｝
880｛ 90｝ 1,960｛200｝ 196｛20｝
490｛ 50｝
980｛100｝ 2,450｛250｝ 294｛30｝
685｛ 70｝ 1,470｛150｝ 2,940｛300｝ 294｛30｝
590｛ 60｝
785｛ 80｝
785｛ 80｝
785
｛ 80｝ 1,470
｛150｝ 245｛25｝
980
｛100｝ 1,960｛200｝ 245｛25｝
980
｛100｝ 1,960
｛200｝ 294｛30｝
685｛ 70｝ 1,470｛150｝ 2,940｛300｝ 490｛50｝
685｛ 70｝ 1,470｛150｝ 2,940｛300｝ 490｛50｝
880｛ 90｝ 1,960｛200｝ 3,900｛400｝ 490｛50｝
980｛100｝
980｛100｝
980｛100｝
49｛
-
20｛ 2｝
20｛ 2｝
29｛ 3｝
196｛ 20｝
78
｛
-
3｝
3｝
8｝
Bearing
Nominal bore diameter
d mm
79, HSB9
Normal
GN
Central
GM
70, HSB0
Heavy
GH
Low
GL
Normal
GN
Central
GM
Heavy
GH
over
inch
12
18
12
18
32
39
｛ 4｝
49｛ 5｝
98
｛ 10｝
78｛ 8｝
147
｛ 15｝
196
｛ 20｝
147｛ 15｝
196｛ 20｝
294｛ 30｝
29｛ 3｝
29｛ 3｝
49｛ 5｝
78｛ 8｝
78｛ 8｝
147｛ 15｝
147｛ 15｝
147｛ 15｝
294｛ 30｝
32
40
50
40
50
65
147
｛ 15｝
196
｛ 20｝
245
｛ 25｝
294
｛ 30｝
390
｛ 40｝
490
｛ 50｝
590｛ 60｝
635｛ 70｝
785｛ 80｝
78｛ 8｝
78｛ 8｝
147｛15｝
294｛ 30｝
294｛ 30｝
490｛ 50｝
590｛ 60｝
590｛ 60｝
880｛ 90｝
880｛ 90｝
980｛ 100｝
1,470｛ 150｝
65
80
90
80
90
95
390
｛ 40｝
490
｛ 50｝
490
｛ 50｝
785
｛ 80｝
980
｛100｝
980
｛100｝
1,180｛120｝
1,470｛150｝
1,470｛150｝
147｛15｝
196｛20｝
196｛20｝
590｛ 60｝
880｛ 90｝
880｛ 90｝
1,470｛150｝
1,960｛200｝
1,960｛200｝
1,960｛ 200｝
2,940｛ 300｝
2,940｛ 300｝
95
100
105
100
105
110
685
｛ 70｝
685
｛ 70｝
685
｛ 70｝
1,274
｛130｝
1,274
｛130｝
1,274
｛130｝
1,960｛200｝
1,960｛200｝
1,960｛200｝
196｛20｝
294｛30｝
294｛30｝
880｛ 90｝
980｛100｝
980｛100｝
1,960｛200｝
2,450｛250｝
2,450｛250｝
2,940｛ 300｝
3,900｛ 400｝
3,900｛ 400｝
110
120
140
120
140
150
880
｛ 90｝
980
｛100｝
1,270
｛130｝
1,780
｛180｝
1,960
｛200｝
2,450
｛250｝
2,940｛300｝
3,450｛350｝
4,400｛450｝
294｛30｝
490｛50｝
490｛50｝
980｛100｝
1,470｛150｝
1,470｛150｝
2,450｛250｝
3,450｛350｝
3,450｛350｝
3,900｛ 400｝
5,900｛ 600｝
5,900｛ 600｝
150
160
170
160
170
180
1,270
｛130｝
1,270
｛130｝
1,780
｛180｝
2,450
｛250｝
2,450
｛250｝
3,450
｛350｝
4,400｛450｝
4,400｛450｝
5,900｛600｝
685｛70｝
685｛70｝
685｛70｝
2,450｛250｝
2,450｛250｝
2,450｛250｝
4,900｛500｝
4,900｛500｝
4,900｛500｝
8,800｛ 900｝
8,800｛ 900｝
8,800｛ 900｝
180
190
190
200
1,780
｛180｝
2,450
｛250｝
3,450
｛350｝
4,900
｛500｝
5,900｛600｝
7,850｛800｝
880｛90｝
880｛90｝
3,450｛350｝
3,450｛350｝
6,850｛700｝
6,850｛700｝
9,800｛1,000｝
9,800｛1,000｝
A-68
196｛
294｛
490｛
20｝
30｝
50｝
●Bearing Internal Clearance and Preload
Unit N｛kgf｝
series
72C, BNT2
HSB0C
Central
GM
Heavy
GH
Low
GL
Normal
GN
73C
Central
GM
Heavy
GH
Low
GL
Normal
GN
Central
GM
Heavy
GH
98｛ 10｝
98｛ 10｝
147
｛ 15｝
147
｛ 15｝
196｛ 20｝
294｛ 30｝
20｛ 2｝
20｛ 2｝
49｛ 5｝
49｛ 5｝
49
｛ 5｝
98
｛ 10｝
294｛ 30｝
294
｛ 30｝
490｛ 50｝
590｛ 60｝
685｛ 70｝
980｛100｝
78｛ 8｝
98｛10｝
147
｛15｝
196
｛ 20｝
294
｛ 30｝
390
｛ 40｝
490
｛ 50｝
785｛ 80｝ 98｛ 10｝
590
｛ 60｝
980｛ 100｝ 145｛ 15｝
785
｛ 80｝ 1,470｛ 150｝ 196｛ 20｝
294｛ 30｝
590｛ 60｝
390｛ 40｝
980｛100｝
590｛ 60｝ 1,470｛150｝
980｛ 100｝
1,960｛ 200｝
2,940｛ 300｝
685
｛ 70｝
980｛100｝
980
｛100｝
1,470｛150｝
1,960｛200｝
1,960｛200｝
196
｛20｝
294
｛30｝
294
｛30｝
490
｛ 50｝
980
｛100｝ 1,960｛ 200｝ 294｛ 30｝
685
｛ 70｝ 1,470
｛150｝ 2,940｛ 300｝ 390｛ 40｝
685
｛ 70｝ 1,960
｛200｝ 3,900｛ 400｝ 390｛ 40｝
785｛ 80｝ 1,960｛200｝
980｛100｝ 2,450｛250｝
980｛100｝ 2,950｛300｝
3,900｛ 400｝
4,900｛ 500｝
5,900｛ 600｝
980｛100｝
1,470
｛150｝
1,470
｛150｝
1,960｛200｝
2,450｛250｝
2,450｛250｝
294
｛30｝
390
｛40｝
390
｛40｝
685
｛ 70｝ 1,960
｛200｝ 3,900｛ 400｝ 390｛ 40｝
980｛100｝ 2,950｛300｝
980
｛100｝ 2,450
｛250｝ 4,900｛ 500｝ 590｛ 60｝ 1,470｛150｝ 3,450｛350｝
980
｛100｝ 2,450
｛250｝ 4,900｛ 500｝ 590｛ 60｝ 1,470｛150｝ 3,450｛350｝
5,900｛ 600｝
6,850｛ 700｝
6,850｛ 700｝
1,470
｛150｝
1,960
｛200｝
1,960
｛200｝
2,450｛250｝
3,900｛400｝
3,900｛400｝
390
｛40｝
980
｛100｝ 2,450
｛250｝ 4,900｛ 500｝ 590｛ 60｝ 1,470｛150｝ 3,450｛350｝
490
｛50｝ 1,470
｛150｝ 2,940
｛300｝ 5,900｛ 600｝ 785｛ 80｝ 1,960｛200｝ 4,400｛450｝
490
｛50｝ 1,470
｛150｝ 2,940
｛300｝ 5,900｛ 600｝ 785｛ 80｝ 1,960｛200｝ 4,400｛450｝
6,850｛ 700｝
8,800｛ 900｝
8,800｛ 900｝
2,450
｛250｝
2,450
｛250｝
2,450
｛250｝
5,900｛600｝
5,900｛600｝
5,900｛600｝
685
｛70｝ 1,960
｛200｝ 4,400
｛450｝ 7,850｛ 800｝ 880｛ 90｝ 2,450｛250｝ 5,900｛600｝
685
｛70｝ 1,960
｛200｝ 4,400
｛450｝ 7,850｛ 800｝ 880｛ 90｝ 2,450｛250｝ 5,900｛600｝
685
｛70｝ 1,960
｛200｝ 4,400
｛450｝ 7,850｛ 800｝ 880｛ 90｝ 2,450｛250｝ 5,900｛600｝
9,800｛1,100｝
9,800｛1,100｝
9,800｛1,100｝
3,450
｛350｝
3,450
｛350｝
6,850｛700｝
6,850｛700｝
785
｛80｝ 2,450
｛250｝ 4,900
｛500｝ 9,800｛1,000｝ 980｛100｝ 2,940｛300｝ 6,850｛700｝ 11,800｛1,200｝
785
｛80｝ 2,450
｛250｝ 4,900
｛500｝ 9,800｛1,000｝ 980｛100｝ 2,940｛300｝ 6,850｛700｝ 11,800｛1,200｝
98｛ 10｝
147
｛ 15｝
294
｛ 30｝
196｛
294｛
490｛
20｝
30｝
50｝
29｛
29｛
76｛
3｝
3｝
8｝
78｛ 8｝
78｛ 8｝
147｛ 15｝
147｛ 15｝
196｛ 20｝
390｛ 40｝
294｛
390｛
685｛
30｝
40｝
70｝
Unit N｛kgf｝
series
72, 72B
Low
GL
29｛
29｛
78｛
Normal
GN
Central
GM
3｝
3｝
8｝
98
｛ 10｝
98｛ 10｝
196
｛ 20｝
196｛ 20｝
294
｛ 30｝
490
｛ 50｝
98｛ 10｝
147
｛ 15｝
196｛ 20｝
390
｛ 40｝
590
｛ 60｝
785
｛ 80｝
294
｛ 30｝
490｛ 50｝
490
｛ 50｝
73, 73B
Heavy
GH
294
｛
390
｛
785
｛
Low
GL
Normal
GN
30｝
40｝
80｝
49｛ 5｝
49｛ 5｝
98｛ 10｝
147｛ 15｝
147｛ 15｝
294｛ 30｝
880
｛ 90｝
980
｛100｝
1,470
｛150｝
1,470
｛ 150｝
1,960
｛ 200｝
2,940
｛ 300｝
147｛ 15｝
196｛ 20｝
294｛ 30｝
980
｛100｝
1,470
｛150｝
1,960
｛200｝
2,450
｛250｝
2,940
｛300｝
3,900
｛400｝
3,900
｛ 400｝
4,900
｛ 500｝
5,900
｛ 600｝
490｛ 50｝
590
｛ 60｝
590｛ 60｝
1,960
｛200｝
2,450
｛250｝
2,450
｛250｝
3,900
｛400｝
4,900
｛500｝
4,900
｛500｝
590
｛ 60｝
785｛ 80｝
785
｛ 80｝
2,450
｛250｝
2,940
｛300｝
2,940
｛300｝
880｛ 90｝
880
｛ 90｝
880｛ 90｝
980
｛100｝
980｛100｝
Central
GM
30｝
40｝
60｝
390｛ 40｝
490｛ 50｝
980｛ 100｝
490｛ 50｝
785｛ 80｝
980｛100｝
980｛ 100｝
1,470｛ 150｝
2,450｛ 250｝
1,960｛ 200｝
2,450｛ 250｝
3,900｛ 400｝
390｛ 40｝
590｛ 60｝
590｛ 60｝
1,470｛150｝
1,960｛200｝
2,450｛250｝
3,450｛ 350｝
3,900｛ 400｝
4,900｛ 500｝
4,900｛ 500｝
5,880｛ 600｝
6,854｛ 700｝
5,900
｛ 600｝
7,850
｛ 800｝
7,850
｛ 800｝
590｛ 60｝
685｛ 70｝
685｛ 70｝
2,450｛250｝
2,940｛300｝
2,940｛300｝
4,900｛ 500｝
5,900｛ 600｝
5,900｛ 600｝
6,860｛ 700｝
8,800｛ 900｝
8,800｛ 900｝
4,900
｛500｝
5,900
｛600｝
5,900
｛600｝
7,850
｛ 800｝
9,800
｛1,000｝
9,800
｛1,000｝
685｛ 70｝
880｛ 90｝
880｛ 90｝
2,940｛300｝
3,900｛400｝
3,900｛400｝
5,900｛ 600｝
7,850｛ 800｝
7,850｛ 800｝
8,800｛ 900｝
11,800｛1,200｝
11,800｛1,200｝
3,900
｛400｝
3,900
｛400｝
3,900
｛400｝
7,850
｛800｝
7,850
｛800｝
7,850
｛800｝
11,800
｛1,200｝
11,800
｛1,200｝
11,800
｛1,200｝
980｛100｝
980｛100｝
980｛100｝
4,400｛450｝
4,400｛450｝
4,400｛450｝
8,800｛ 900｝
8,800｛ 900｝
8,800｛ 900｝
13,700｛1,400｝
13,700｛1,400｝
13,700｛1,400｝
4,400
｛450｝
4,400
｛450｝
8,800
｛900｝
8,800
｛900｝
13,700
｛1,400｝
13,700
｛1,400｝
1,470｛150｝
1,470｛150｝
5,900｛600｝
5,900｛600｝
11,800｛1,200｝
11,800｛1,200｝
15,700｛1,600｝
15,700｛1,600｝
A-69
294｛
390｛
590｛
Heavy
GH
●Allowable Speed
9. Allowable Speed
As rotational speed of the bearing increase, the
temperature of the bearing also rises due to heat
produced inside the bearing by friction. This causes
damage to the bearing such as seizure, and the bearing
will be unable to continue stable operation. Therefore, the
maximum speed at which it is possible for the bearing to
continuously operate without the generation of excessive
heat beyond specified limits, is called the allowable
speed (min-1).
The allowable speed of a bearing depends on the type
of bearing, bearing dimensions, type of cage, load,
lubricating conditions, and cooling conditions.
Under such high speed operating conditions, when
special care is taken, the standard allowable speeds
given in the bearing tables can be adjusted upward. The
maximum speed adjustment values, f B, by which the
bearing table speeds can be multiplied, are shown in
Table 9.1. However, for any application requiring speeds
in excess of the standard allowable speed, please
consult NTN Engineering.
1.0
The bearing dimensions table gives approximate
allowable rotational speeds for grease and oil lubrication.
The values are based on the following:
¡The bearing must have the proper internal clearance
prescribed in the NTN Engineering standard design
specifications and must be properly installed.
¡A quality lubricant must be used. The lubricant must be
replenished and changed when necessary.
¡The bearing must be operated at normal operating
temperature under ordinary load conditions (P≦0.09
Cr, Fa / Fa≦0.3).
0.9
fL
0.8
0.7
0.6
0.5
5
6
7
8
9
10
11
Cr
P
If load is P≦0.04 Cor, the rolling elements may not turn
smoothly. If so, please contact NTN Engineering for more
information. Allowable rotational speed for deep groove
ball bearings with contact seal (LLU type) or low-torque
seal (LLH type) is determined according to the
circumferential speed of the seal.
Fig. 9.1 Value of adjustment factor fL depends on bearing load
1.0
Angular
For bearings to be used under heavier than normal load
conditions, the allowable speed values listed in the
bearing tables must be multiplied by an adjustment factor.
The adjustment factors f L and f C are given in Figs. 9.1
and 9.2.
contact ba
0.9
Deep g
roove b
ll bearings
all beari
ngs
fC
0.8
Cyli
Tap ndrical
ere
d ro roller b
ller
e
bea arings
ring
s (F
a/F
0.7
Also, when radial bearings are mounted on vertical
shafts, lubricant retentions and cage guidance are not
favorable compared to horizontal shaft mounting.
Therefore, the allowable speed should be reduced to
approximately 80% of the listed speed.
0.6
0.5
0
0.5
1.0
r≦
1.5
2e)
2.0
Fa
Fr
For speeds other than those mentioned above, and for
which data is incomplete, please consult NTN
Engineering.
Fig. 9.2 Value of adjustment factor fC depends on combined load
Table 9.1 Adjustment factor, fB, for allowable number
of revolutions
If rotational speed is to exceed allowable rotational
speed given in the dimensions table, it will require special
considerations such as using a bearing for which cage
specifications, internal clearance and precision have been
thoroughly checked. It will also require adopting forced
circulation, jet oil or mist oil lubrication as the lubrication
method.
Type of bearing
Deep groove ball bearings
Angular contact ball bearings
Cylindrical roller bearings
Tapered roller bearings
A-70
Adjustment factor fB
3.0
2.0
2.5
2.0
●Friction and Temperature Rise
10. Friction and Temperature Rise
10.1 Friction
10.2 Temperature rise
One of the main functions required of a bearing is that
it must have low friction. Under normal operating
conditions rolling bearings have a much smaller friction
coefficient than the slide bearings, especially starting
friction.
Almost all friction loss in a bearing is transformed into
heat within the bearing itself and causes the temperature
of the bearing to rise. The amount of thermal generation
caused by friction moment can be calculated using
formula (10.2).
The friction coefficient for rolling bearings is expressed
by formula (10.1).
Q＝0.105×10 Mn N
……………… (10.2)
-6
＝1.03×10 Mn｛kgf｝
where,
Q：Thermal value, kW
M：Friction moment, N・mm｛kgf・fmm｝
n：Rotational speed, min-1
-6
2M
μ＝ Pd …………………………………… (10.1)
where,
μ：Friction coefficient
M ：Friction moment, N・mm｛kgf・fmm｝
P ：Load, N｛kgf｝
d ：Bearing bore diameter, mm
Bearing operating temperature is determined by the
equilibrium or balance between the amount of heat
generated by the bearing and the amount of heat
conducted away from the bearing. In most cases the
temperature rises sharply during initial operation, then
increases slowly until it reaches a stable condition and
then remains constant. The time it takes to reach this
stable state depends on the amount of heat produced,
heat capacity/diffusion of the shaft and bearing housing,
amount of lubricant and method of lubrication. If the
temperature continues to rise and does not become
constant, it must be assumed that there is some improper
function.
Although the dynamic friction coefficient for rolling
bearings varies with the type of bearings, load,
lubrication, speed, and other factors; for normal operating
conditions, the approximate friction coefficients for
various bearing types are listed in Table 10.1.
Table 10.1 Friction coefficient for bearings (reference)
-3
Bearing type
Coefficient μ×10
Deep groove ball bearings
Angular contact ball bearings
Self-aligning ball bearings
Cylindrical roller bearings
Needle roller bearings
Tapered roller bearings
Spherical roller bearings
Thrust ball bearings
Thrust roller bearings
1.0∼1.5
1.2∼1.8
0.8∼1.2
1.0∼1.5
2.0∼3.0
1.7∼2.5
2.0∼2.5
1.0∼1.5
2.0∼3.0
｝
Possible causes of abnormal temperature include
bearing misalignment (due to moment load or
incorrect installation), insufficient internal clearance,
excessive preload, too much or too little lubricant, or
heat produced from sealed units. Check the
mechanical equipment, and if necessary, remove and
inspect the bearing.
A-71
●Lubrication
11. Lubrication
Fig. 11.1 shows the relationship between oil volume,
friction loss, and bearing temperature. Table 11.1 details
the characteristics of this relationship.
11.1 Purpose of lubrication
The purpose of bearing lubrication is to prevent direct
metallic contact between the various rolling and sliding
elements. This is accomplished through the formation of a
thin oil (or grease) film on the contact surfaces. However,
for rolling bearings, lubrication has the following
advantages:
11.2 Lubrication methods and characteristics
Lubrication method for bearings can be roughly divided
into grease and oil lubrication. Each of these has its own
features, so the lubrication method that best offers the
required function must be selected.
The characteristic are shown in Table 11.2.
(1) Reduction of friction and wear
(2) Dissipation of friction heat
(3) Prolonged bearing life
(4) Prevention of rust
(5) Protection against harmful elements
Table 11.2 Comparison of grease lubrication and
oil lubrication characteristics
Method
high
high
In order to exhibit these effects, a lubrication method
that matches service conditions. In addition to this, a
quality lubricant must be selected, the proper amount of
lubricant must be used and the bearing must be designed
to prevent foreign matter from getting in or lubricant from
leaking out.
Friction loss
A
B
C
D
Grease
lubrication
Handling
◎
△
Reliability
○
◎
Cooling effect
×
○ necessary)
Seal structure
○
△
Power loss
○
○
Environment contamination
○
△
High speed rotation
×
○
Oil lubrication
(Circulation
◎： Very good ○：Good △：Fair ×：Poor
Friction loss
Temperature increase
Temperature
increase
Concern
11.3 Grease lubrication
Grease lubricants are relatively easy to handle and
require only the simplest sealing devices. For these
reasons, grease is the most widely used lubricant for rolling
bearings. It is used a bearing that is pre-sealed with grease
(sealed/shield bearing), or if using an unsealed bearing, fill
the bearing and housing with the proper amount of grease,
and replenish or change the grease regularly.
E
Oil volume
great
Fig. 11.1
11.3.1 Types and characteristics of grease
Lubricating grease are composed of either a mineral oil
base or a synthetic oil base. To this base a thickener and
other additives are added. The properties of all greases
are mainly determined by the kind of base oil used and by
the combination of thickening agent and various
additives. Table 11.5 shows general grease varieties and
characteristics, and Table 11.6 shows grease brand
names and their natures. (See pages A-74 and A-75.) As
performance characteristics of even the same type of
grease will vary widely from brand to brand, it is
necessary to check the manufacturers' data when
selecting a grease.
Table 11.1 Oil volume, friction loss, bearing temperature
(See Fig. 11.1)
Range
Characteristics
Lubrication method
A
When oil volume is extremely low,
direct metallic contact occurs in places
between the rolling elements and
raceway surfaces. Bearing abrasion
and seizing occur.
――
B
A thin oil film develops over all
surfaces, friction is minimal and
bearing temperature is low.
Grease lubrication,
oil mist,
air-oil lubrication
C
As oil volume increases, heat buildup
is balanced by cooling.
Circulating
lubrication
D
Regardless of oil volume, temperature
increases at a fixed rate.
Circulating
lubrication
E
Forced circulation
As oil volume increases, cooling
predominates and bearing temperature lubrication,
Oil jet lubrication
decreases.
(1) Base oil
Mineral oil or synthetics such as ester or ether oil are
used as the base of the grease.
Mainly, the properties of any grease is determined by
the properties of the base oil. Generally, greases with low
A-72
●Lubrication
viscosity base oil are best suited for low temperatures and
high speeds; Grease using high-viscosity base oil has
superior high-temperature and high-load characteristics.
Table 11.3 Consistency of grease
(2) Thickening agents
Thickening agents are compounded with base oils to
maintain the semi-solid state of the grease. Thickening
agents consist of two types of bases, metallic soaps and
non-soaps. Metallic soap thickeners include: lithium,
sodium, calcium, etc.
NLGI
Consistency No.
JIS (ASTM)
60 times blend
consistency
0
355∼385
For centralized greasing use
1
310∼340
For centralized greasing use
2
265∼295
For general use and sealed bearing use
3
220∼250
For general use and high temperature use
4 175∼205 For special use
Applications
Non-soap base thickeners are divided into two groups;
inorganic (silica gel, bentonite, etc.) and organic (polyurea, fluorocarbon, etc.).
11.3.2 Amount of grease
The amount of grease used in any given situation will
depend on many factors relating to the size and shape of
the housing, space limitations, bearing's rotating speed
and type of grease used.
The various special characteristics of a grease, such as
limiting temperature range, mechanical stability, water
resistance, etc. depend largely on the type of thickening
agent used. For example, a sodium based grease is
generally poor in water resistance properties, while
greases with bentone, poly-urea and other non-metallic
soaps as the thickening agent are generally superior in
high temperature properties.
As a rule of thumb, bearings should be filled to 30 to 40%
of their space and housing should be filled 30 to 60%.
Where speeds are high and temperature rises need to
be kept to a minimum, a reduced amount of grease
should be used. Excessive amount of grease cause
temperature rise which in turn causes the grease to
soften and may allow leakage. With excessive grease
fills oxidation and deterioration may cause
lubricating efficiency to be lowered.
(3) Additives
Various additives are added to greases to improve
various properties and efficiency. For example, there are
anti-oxidents, high-pressure additives (EP additives), rust
preventives, and anti-corrosives.
For bearings subject to heavy loads and/or shock loads,
a grease containing high-pressure additives should be
used. For comparatively high operating temperatures or
in applications where the grease cannot be replenished
for long periods, a grease with an oxidation stabilizer is
best to use.
Moreover, the standard bearing space can be found by
formula (11.1)
V＝K・W ……………………………… (11.1)
where,
V : Quantity of bearing space open type (approx.), cm3
K : Bearing space factor (see value of K in Table 11.4)
W : Mass of bearing, kg
(4) Consistency
Consistency is an index that indicates hardness and
fluidity of grease. The higher the number, the softer the
grease is. The consistency of a grease is determined by
the amount of thickening agent used and the viscosity of
the base oil. For the lubrication of rolling bearings,
greases with the NLGI consistency numbers of 1, 2, and
3 are used.
Table 11.4 Bearing space factor K
General relationships between consistency and
application of grease are shown in Table 11.3.
(5) Mixing of greases
When greases of different kinds are mixed together, the
consistency of the greases will change (usually softer), the
operating temperature range will be lowered, and other
changes in characteristics will occur. As a rule, grease
should not be mixed with grease of any other brand.
Bearing type Cage type Pressed cage
61
NU-type cylindrical roller bearings 2
Pressed cage
Machined cage
50
36
N-type cylindrical roller bearings 3
Pressed cage
Machined cage
55
37
Tapered roller bearings
Pressed cage
46
Pressed cage
Machined cage
35
28
Spherical roller bearings
1 Does not apply top 160 series bearings.
2 Does not apply to NU4 series bearings.
3 Does not apply to N4 series bearings.
However, if different greases must be mixed, at least
greases with the same base oil and thickening agent
should be selected.
A-73
K
Ball bearings 1
●Lubrication
Table 11.5 Grease varieties and characteristics
Grease name
Lithium grease
Sodium grease
(Fiber grease)
Calcium compound
base grease
Thickener
Li soap
Na soap
Ca+Na soap
Ca+Li soap
Base oil
Mineral oil
Diester oil
Silicone oil
Mineral oil
Mineral oil
Dropping point ˚C
170 ∼ 190
170 ∼ 190
200 ∼ 250
150 ∼ 180
150 ∼ 180
Operating
temperature range ˚C
-30 ∼ +130
-50 ∼ +130
-50 ∼ +160
-20 ∼ +130
-20 ∼ +120
Mechanical stability
Excellent
Good
Good
Excellent ∼ Good
Excellent ∼ Good
Pressure resistance
Good
Good
Poor
Good
Excellent ∼ Good
Water resistance
Good
Good
Good
Good ∼ Poor
Good ∼ Poor
Widest range of
applications.
Applications
Grease used in all
types of rolling
bearings.
Excellent low
temperature and
wear characteristics.
Suitable for high
and low
temperatures.
Some emulsification
when water is
introduced.
Excellent pressure
resistance and
mechanical stability.
Suitable for small
sized and miniature
bearings.
Unsuitable for heavy
load applications due
to low oil film
strength.
Excellent
characteristics at
relatively high
temperatures.
Suitable for
bearings receiving
shock loads.
Table 11.6 Grease brands and their nature
Manufacturer
Showa Shell Sekiyu
Kyodo Yushi
Brand name
NTN
code
Thickener
Base oil
Alvania Grease 2
2A
Lithium
Mineral oil
Alvania Grease 3
3A
Lithium
Mineral oil
Alvania Grease RA
4A
Lithium
Mineral oil
Alvania EP Grease 2
8A
Lithium
Mineral oil
Aero Shell Grease 7
5S
Microgel
Diester
Multemp PS No. 2
1K
Lithium
Diester
Multemp SRL
5K
Lithium
Tetraesterdiester
E5
L417
Urea
Ether
Temprex N3 / Unilex N3
2E
Complex Li
Synthetic hydrocarbon
Beacon 325
3E
Lithium
Diester
Isoflex Super LDS18
6K
Lithium
Diester
Barrierta JFE552
LX11
Fluoride
Fluoride oil
Grease J
L353
Urea
Ester
SH33L
3L
Lithium
Methyl phenyl oil
SH44M
4M
Lithium
Methyl phenyl oil
Multi Nok wide No. 2
6N
Sodium lithium
Diester mineral oil
U-4
L412
Urea
Synthetic hydrocarbon + dialkyldiphenyl ether
MP-1
L448
Diurea
PAO + ester
Apolo Autolex A
5A
Lithium
Mineral oil
Mobile Grease 28
9B
Bentone
Synthetic hydrocarbon
Cosmo Wide Grease WR3
2M
Na terephthalate
Diester mineral oil
Demnum L200
LX23
PTFE
Fluoride oil
Esso Sekiyu
NOK Kluber
Toray Dow Corning,
Silicone
Nippon Oil
Nihon Grease
Idemitsu Kosan
Mobil Sekiyu
Cosmo Oil
Daikin
Note: For nature, see the manufacturer's catalog.
A-74
●Lubrication
Non-soap base grease
Aluminum grease
Bentone, silica gel, urea, carbon black,
fluorine compounds, etc.
AI soap
Mineral oil
Mineral oil
Synthetic oil
70 ∼ 90
250 or above
250 or above
-10 ∼ +80
-10 ∼ +130
-50 ∼ +200
Good ∼ Poor
Good
Good
Good
Good
Good
Good
Good
Good
Can be used in a wide range of low to high temperatures.
Shows excellent heat resistance, cold resistance, chemical
resistance, and other characteristics when matched with a
suitable base oil and thickener.
Excellent adhesion
Suitable for bearings Grease used in all types of rolling bearings.
receiving vibration
Base oil viscosity
Consistency
Dropping
point˚C
Operating
temperature˚C
Color
Characteristics
37.8˚C
140mm2/s
273
181
−25∼120
Amber
All-purpose grease
37.8˚C
140mm2/s
232
183
−25∼135
Amber
All-purpose grease
37.8˚C
45mm2/s
252
183
−40∼120
Amber
For low temperature
98.9˚C
15.3mm2/s
276
187
−20∼110
Brown
All-purpose extreme-pressure
98.9˚C
3.1mm /s
288
Min. 260
−73∼149
Yellow-brown
37.8˚C
15.3mm2/s
265∼295
190
−55∼130
White
For low temperature and low torque
40˚C
26mm2/s
250
192
−40∼150
White
Wide range
40˚C
72.3mm2/s
300
240
−30∼180
White
For high temperature
40˚C 113mm /s
220∼250
Min. 300
−30∼160
Green
For high temperature
40˚C
11.5mm2/s
265∼295
177
−60∼120
Brown
For low temperature and low torque
40˚C
16.0mm2/s
265∼295
Min. 180
−60∼130
Yellow-green
For low temperature and low torque
40˚C
400mm2/s
290
−35∼250
White
40˚C
75mm /s
280
−20∼180
Gray-white
For high temperature
25˚C
100mm2/s
300
200
−70∼160
Light red-gray
For low temperature
40˚C
32mm2/s
260
210
−40∼180
Brown
For high temperature
37.8˚C
30.9mm2/s
265∼295
215
−40∼135
Light brown
40˚C
58mm /s
255
260
−40∼180
Milk-white
40˚C
40.6mm2/s
243
254
−40∼150
Light brown
37.8˚C
50mm2/s
265∼295
192
−25∼150
Yellow
40˚C
28mm2/s
315
Min. 260
−62∼177
Red
37.8˚C
30.1mm /s
265∼295
Min. 230
−40∼150
Light brown
40˚C
200mm2/s
−60∼300
White
2
2
2
2
2
280
A-75
MIL-G-23827
Wide range
For high temperature
Wide range
All-purpose grease
MIL-G-81322C Wide range
Wide range
●Lubrication
therefore,
11.3.3 Grease replenishment
As the lubricating efficiency of grease declines with the
passage of time, fresh grease must be re-supplied at
proper intervals. The replenishment time interval depends
on the type of bearing, dimensions, bearing's rotating
speed, bearing temperature, and type of grease.
The point where vertical line!intersects a horizontal line
drawn from the point equivalent of d = 30 for the radial
ball bearing shown in Fig. 11.2 shall be point A. Find
intersection point C where vertical line@intersects the
straight line formed by joining point B (no/n = 2.93) with A
with a straight line. It shows that grease life in this case is
approximately 5,500 hours.
An easy reference chart for calculating grease
replenishment intervals is shown in Fig. 11.2.
11.4 Solid grease (For bearings with solid grease)
This chart indicates the replenishment interval for
standard rolling bearing grease when used under normal
operating conditions.
"Solid grease" is a lubricant composed mainly of lubricating
grease and ultra-high polymer polyethylene. Solid grease has
the same viscosity as grease at normal temperature, If
heated once and cooled (this process is referred to as
"calcination") the grease hardens while maintaining a large
quantity of lubricant. The result of this solidification is that the
grease does not easily leak from the bearing, even when the
bearing is subjected to strong vibrations or centrifugal force.
Bearings with solid grease are available in two types: the
spot-pack type in which solid grease is injected into the
cage, and the full-pack type in which all empty space
around the rolling elements is filled with solid grease.
Spot-pack solid grease is standard for deep groove ball
bearings, small diameter ball bearings, and bearing units.
Full-pack solid grease is standard for self-aligning ball
bearings, spherical roller bearings, and needle roller bearings.
Primary advantages:
(1) Grease leakage is minimal.
(2) Low bearing torque with spot-pack type solid grease
As operating temperatures increase, the grease resupply interval should be shortened accordingly.
Generally, for every 10˚C increase in bearing
temperature above 80˚C, the relubrication period is
reduced by exponent "1/1.5".
no /n
@
20.0
15.0
400
300
200
100
50
40
30
20
10
7
Bearing bore d, mm
!
Relubrication interval, h
#
20 000
10.0
9.0
8.0
7.0
6.0
10 000
5.0
30 000
A
200
20
10
100
50
30
20
500
300
200
100
50
30
20
Spherical roller bearings
Tapered roller bearings
Cylindrical roller bearings
100
50
30
Thrust ball bearings
Radial ball bearings
500
300
200
5 000
4 000
3 000
C
4.0
3.0
10,560
no
＝
＝2.93
n
3,600
For more details, please refer to NTN special catalog
of Solid grease bearings.
B
2 000
2.0
1 000
Solid grease
1.5
500
400
300
1.0
0.9
no: fL×fC×limiting speed for grease
(dimension tables)
see Fig. 9.1, Fig. 9.2
n : actual rotational speed
0.8
0.7
Fig. 11.2 Diagram for relubrication interval of greasing
Fig. 11.3 Deep groove ball bearing with spot-pack solid grease (Z shield)
(Standard for deep groove ball bearings)
――――――――――――――――――――――――――――――――――――
(Example)
Find the grease relubrication time limit for deep
groove ball bearing 6206, with a radial load of
2.0 kN {204kgf} operating at 3,600 min-1.
Solid grease
――――――――――――――――――――――――――――――――――――
Cr / Pr ＝ 19.5/2.0 kN ＝ 9.8 from Fig. 11.1, the
ajustment factor, fL, is 0.96.
Allowable rotational speed from the dimensions tables
for bearing 6206 is 11,000 min-1. Allowable rotational
speed no for a 2.0 kN {204 kgf} radial load is:
Fig. 11.4 Spherical roller bearing with full-pack solid grease
(Standard for spherical roller bearings)
no ＝ 0.96×11,000 ＝ 10,560 min-1
A-76
●Lubrication
11.5 Oil lubrication
dissipated to the outside.Table 11.7 shows the main
methods of oil lubrication.
Oil lubrication is suitable for applications requiring that
bearing-generated heat or heat applied to the bearing
from other sources be carried away from the bearing and
Table 11.7 Oil lubrication methods
Lubrication method
(Oil bath lubrication)
¡Oil bath lubrication is
the most generally used
method of lubrication
and is widely used for
low to moderate rotation
speed applications.
¡For horizontal shaft
applications, oil level
should be maintained at
approximately the
center of the lowest
rolling element,
according to the oil
gauge, when the
bearing is at rest. For
vertical shafts at low
speeds, oil level should
be maintained at 50 80% submergence of
the rolling elements.
Example
Lubrication method
(Disc lubrication)
¡In this method, a
partially submerged disc
rotates and pulls oil up
into a reservoir from
which it then drains
down through the
bearing, lubricating it.
(Oil spray lubrication)
¡In this method, an
impeller or similar
device mounted on the
shaft draws up oil and
sprays it onto the
bearing. This method
can be used at
considerably high
speeds.
(Oil mist lubrication)
¡Using pressurized air,
lubricating oil is
atomized before passing
through the bearing.
¡Due to the low lubricant
resistance, this method
is well suited to high
speed applications.
(Drip lubrication)
(Air-oil lubrication)
¡In this method, oil is
collected above the
bearing and allowed to
drip down into the
housing where it
becomes a lubricating
mist as it strikes the
rolling elements.
Another version allows
only slight amounts of
oil to pass through the
bearing.
¡Used at relatively high
speeds for light to
moderate load
applications.
¡In most cases, oil
volume is a few drops
per minute.
(Circulating lubrication)
Example
¡In this method, the
required minimum
amount of lubricating oil
is measured and fed to
each bearing at ideal
intervals using
compressed air.
¡With fresh lubricating oil
constantly being fed to
the bearing, and with
the cooling effect of the
compressed air, bearing
temperature rise can be
minimized.
¡Because the required oil
quantity is infinitesimal,
the working environment
can be kept clean.
Air-oil lubrication units
are available from NTN.
(Oil jet lubrication)
¡Used for bearing cooling
applications or for
automatic oil supply
systems in which the oil
supply is centrally
located.
¡One of the advantages
of this method is that oil
cooling devices and
filters to maintain oil
purity can be installed
within the system.
¡In order for oil to
thoroughly lubricate the
bearing, oil inlets and
outlets must be provided
on opposite sides of the
bearing.
¡This method lubricates
by injecting oil under
high pressure directly
into the side of the
bearing. This is a
reliable system for high
speed, high temperature
or otherwise severe
conditions.
¡Used for lubricating the
bearings in jet engines,
gas turbines, and other
high speed equipment.
¡Under-race lubrication
for machine tools is one
example of this type of
lubrication.
A-77
Mist
separator
Reservoir (level switch)
Oil
Air
Air filter
Air oil line
Solenoid valve
T Timer
Air
Pressure switch
Nozzle
●Lubrication
11.5.2 Oil quantity
In forced oil lubrication systems, the heat radiated away
by the housing and surrounding parts plus the heat
carried away by the lubricating oil is approximately equal
to the amount of heat generated by the bearing and other
sources.
11.5.1 Selection of lubricating oil
Under normal operating conditions, spindle oil,
machine oil, turbine oil, and other mineral oils are widely
used for the lubrication of rolling bearings. However, for
temperatures above 150˚C or below -30˚C, synthetic oils
such as diester oil, silicone oil, and fluorocarbon oil are
used.
For lubricating oils, viscosity is one of the most
important properties and determines an oil’s lubricating
efficiency. If viscosity is too low, formation of the oil film
will be insufficient, and damage will occur to the
raceways of the bearing. If viscosity is too high, viscous
resistance will also be great and result in temperature
increases and friction loss. In general, for higher speed
applications a lower viscosity oil should be used; for
heavier load applications, a higher viscosity oil should be
used.
In regard to operating temperature, Table 11.8 lists the
required oil viscosity for different types of rolling bearings.
Fig. 11.5 is an oil viscosity - operating temperature
comparison chart for the purpose of selecting a
lubrication oil with viscosity characteristics appropriate to
an application.
Table 11.9 lists the selection standards for lubricating
oil viscosity with reference to bearing operating
conditions.
For general housing applications, the required quantity
of oil can be found by formula (11.2).
Q＝K・q ……………………………… (11.2)
where,
Q: Quantity of oil for one bearing cm3/min.
K: Allowable oil temperature rise factor (Table 11.10)
q : Amount of lubrication determined by diagram
cm3/min. (Fig. 11.4)
Because the amount of heat radiated will vary
according to the type of housing, for actual operation it is
advisable that the quantity of oil calculated by formula
3,000
2,000
500
300
200
Viscosity mm2/s
100
Table 11.8 Required lubricating oil viscosity for bearings
Dynamic viscosity mm2 /s
Bearing type
Ball bearings, Cylindrical roller bearings,
Needle roller bearings
Spherical roller bearings, Tapered roller
bearings, Needle roller thrust bearings
Self-aligning roller thrust bearings
1:
2:
3:
4:
5:
6:
7:
1,000
30
20
15
1
2
10
6
5
6
4
20
VG 320
VG 150
VG 68
VG 46
VG 32
VG 22
VG 15
50
8
13
ISO
ISO
ISO
ISO
ISO
ISO
ISO
3
4
5
7
3
30
- 30
- 20
- 10
0
10
20
30
40
50
60
70
80
90
100 110 120 130 140 150 160
Temperature ˚C
FIg. 11.5 Relation between lubricating oil viscosity and
temperature
Table 11.8 Selection standards for lubricating oils (Reference)
Bearing operating
temperature
˚C
−30∼
0
0∼ 60
60∼100
dn-value
Up to allowable rotational speed
Lubricating oil ISO viscosity grade (VG)
Suitable bearing
Normal load
Heavy load or shock load
22，32
46
All types
Up to 15,000
46，68
100
All types
15,000 ∼80,000
32，46
68
All types
80,000 ∼150,000
22，32
32
All types but thrust ball bearings
150,000∼500,000
10
22，32
Single row radial ball bearings, cylindrical roller bearings
Up to 15,000
150
220
All types
15,000 ∼80,000
100
150
All types
80,000 ∼150,000
68
100，150
All types but thrust ball bearings
150,000∼500,000
32
68
Single row radial ball bearings, cylindrical roller bearings
100 ∼150
Up to allowable rotational speed
320
0∼ 60
Up to allowable rotational speed
46，68
60∼100
Up to allowable rotational speed
150
All types
Self-aligning roller bearings
Note 1: Applied when lubrication method is either oil bath or circulating lubrication.
2: Please consult NTN Engineering in cases where operating conditions fall outside the range covered by this table.
A-78
●Lubrication
11.5.3 Relubrication intervals
The intervals at which lubricating oil should be
changed varies depending upon operating
conditions, oil quantity, and type of oil used. In
general, for oil bath lubrication where the operating
temperature is 50˚C or less, oil should be replaced
once a year. When the operating temperature is
between 80˚C – 100˚C, oil should be replaced at least
every three months. For important equipment, it is
advisable that lubricating efficiency and oil purity
deterioration be checked regularly to determine when
oil replacement is necessary.
Table 11.9 Factor K
Expelled oil temp minus
supplied oil temp ˚C
K
10 1.5
15 1
20 0.75
25 0.6
(11.2) be multiplied by a factor or 1.5 or 2.0. Then, the
amount of oil can be adjusted to correspond to actual
operating conditions.
Furthermore, if it is assumed for calculation purposes
that no heat is radiated by the housing, and that all
bearing heat is removed by the oil, then the value for
shaft diameter, d ＝ 0.
――――――――――――――――――――――――――――――――――――
(Example) For tapered roller bearing 30220U
mounted on a flywheel shaft with a radial load of 9.5
kN｛969 kgf｝, operating at 1,800 r/min, what is the
amount of lubricating oil‘Q’required to keep the
bearing temperature rise below 15˚C.
――――――――――――――――――――――――――――――――――――
d ＝ 100 mm，
dn ＝ 100×1,800＝18×104
From Fig. 11.6 q ＝ 180cm3 / min
Assume the bearing temperature is approximately
equal to the expelled oil temperature,
from Table 11.10, since K ＝ 1
Q＝1×180＝180cm3 / min
r
1
2
dn×
10 4
3
4
5
6
Bearing type
Spherical roller bearings
Tapered roller bearings
Angular contact ball bearings
Deep groove ball bearings,
Cylindrical roller bearings
8
10
dP
Loa kgf
kN 30,000
00
300 20,0
200
Shaft
0
diameter
0,00
1
0
d
100
7,00
mm
0
7
0
6,00
160
0
0
0
60
,
4
140
40
0
3,00
30
100
0
80
2,00
60
20
0
0
5
40 20
1,
15
0
0
1,00
10
800
8
600
6
15
4
20
30
40
2
400
200
Oil quantity q
cm3/min
100
200
300
400
500
600
700
800
900
1,000
1,100
1,200
Fig. 11.6 Oil quantity guidelines
A-79
●External bearing sealing devices
12. External bearing sealing devices
formed synthetic rubber lip on a steel plate is pressed
against the shaft. Contact seals are generally far
superior to non-contact seals in sealing efficiency,
although their friction torque and temperature rise
coefficients are higher. Furthermore, because the lip
portion of a contact seal slides while in contact with the
shaft, the allowable seal peripheral speed varies
depending on seal type.
External seals have two main functions: to prevent
lubricating oil from leaking out, and, to prevent dust, water,
and other contaminants from entering the bearing. When
selecting a seal, the following factors need to be taken into
consideration: the type of lubricant (oil or grease), seal
peripheral speed, shaft fitting errors, space limitations,
seal friction and resultant heat increase, and cost.
Sealing devices for rolling bearings fall into two main
classifications: non-contact seals and contact seals.
Lubrication is required in the place where the seal lip
makes contact with the shaft. Ordinary bearing lubricant
can also be used for this purpose.
¡Non-contact seals: Non-contact seals utilize a small
clearance between the shaft and the housing cover.
Therefore friction is negligible, making them suitable for
high speed applications.
In order to improve sealing capability, clearance
spaces are often filled with lubricant.
The following chart lists the special characteristics of
seals and other points to be considered when choosing
an appropriate seal.
¡Contact seals: A contact seal is a seal whereby a
Type
Seal construction
Name
Seal characteristics and selection considerations
Clearance seal
This is an extremely simple seal
design with a small radial
clearance.
Oil groove seal
Several concentric oil grooves are
provided on the housing inner
diameter to greatly improve the
sealing effect. When the grooves
are filled with lubricant, the
intrusion of contaminants from the
outside is prevented.
(oil grooves on
housing side)
Oil groove seal
Non-contact seals
(oil grooves on
shaft and housing
side)
Oil grooves are provided on both
the shaft outer diameter and
housing inner diameter for a seal
with even greater sealing
efficiency.
Axial labyrinth
seal
This seal has a labyrinth
passageway on the axial side of
the housing.
Radial
labyrinth seal
A labyrinth passageway is affixed
to the radial side of the housing.
For use with split housings. This
offers better sealing efficiency than
axial labyrinth seals.
Aligning
labyrinth seal
The seal's labyrinth passageway is
slanted and has sufficient
clearance to prevent contact
between the housing projections
and the shaft even as the shaft
realigns.
A-80
Cautionary points regarding selection
・In order to improve sealing
efficiency, clearances between the
shaft and housing should be
minimized. However, care should
be taken to confirm shaft/bearing
rigidity and other factors to avoid
direct shaft-housing contact during
operation.
Oil groove clearance (reference)
Shaft diameter mm
Clearance mm
Up to 50 0.2∼0.4
50 or above 0.5∼1.0
・Oil groove width, depth (reference)
width : 2∼5 mm
depth : 4∼5 mm
・Three or more oil grooves should
be provided.
・Sealing efficiency can be further
improved by filling the oil groove
portion with grease of which the
consistency grade is 150 to 200.
・Grease is generally used as the
lubricant for labyrinth seals, and,
except in low speed applications,
is commonly used together with
other sealing devices.
Cautionary points regarding selection
・In order to improve sealing
efficiency, labyrinth passageway
clearances should be minimized.
However, care should be taken to
confirm shaft/bearing rigidity, fit,
internal clearances and other
factors to avoid direct contact
between labyrinth projections
during operation.
Labyrinth clearance (reference)
Shaft
Clearance mm
diameter
mm Radial direction Axial direction
ー∼ 50 0.2∼0.4 50∼200 0.5∼1.0 1.0∼2.0
3.0∼5.0
・Sealing efficiency can be further
improved by filling the labyrinth
passageway with grease of which
the consistency grade is 150 to 200.
・Labyrinth seals are suitable for
high speed applications.
●External bearing sealing devices
Type
Seal construction
Name
Oil comb sleeve
Oil
surface
Non-contact seals
Oil comb
sleeve
Oil flow
Slinger
In this design, lubricating oil that
makes its way out of the housing
along the shaft is thrown off by
projections on the oil comb sleeve
and recirculated.
Cautionary points regarding selection
・Seal type whereby a slinger that
utilizes centrifugal force is
provided on the rotating shaft.
・If mounted on the inside of the
housing, the slinger should
function to seal in lubricant by
centrifugal force produced by
rotation.
Slinger
provided in the
housing
Seal type whereby a slinger is
provided in the housing that
prevents lubricant from leaking by
centrifugal force produced by
rotation.
Slinger
provided
outside the
housing
By mounting a slinger on the outside
of the housing, centrifugal force
helps to prevent dust and other solid
contaminants from entering.
Z grease seal
In cross section resembling the letter "Z," this seal's empty spaces are filled with
grease.
The seal is commonly used with a plummer block (bearing housing).
V-ring seal
This design enhances sealing efficiency with a lip that seals from the axial direction.
With the aid of centrifugal force, this seal also offers effective protection against
dust, water, and other contaminants entering the bearing. Can be used for both oil
and grease lubrication.
At seal peripheral speeds in excess of 12 m/s, seal ring fit is lost due to centrifugal
force, and a clamping band is necessary to hold it in place.
Oil seal
Oil seals are widely used, and their
shapes and dimensions are
standardized under JIS B 2402.
In this design, a ring-shaped spring
is installed in the lip section. As a
result, optimal contact pressure is
exerted between the lip edge and
shaft surface, and sealing
efficiency is good.
Slinger
Air flow
Seal characteristics and selection considerations
・If mounted on the outside of the
housing, the slinger should
function to seal out foreign matter
by fan effect produced by rotation.
・These seal types are commonly
employed together with other
sealing devices.
Z grease seal
V-ring seal
Back up metal
Spring
Contact seals
Seal lip
Lip edge
When the bearing and oil seal are
in close proximity, the internal
clearance of the bearing may be
reduced by heat produced by the
oil seal. In addition to considering
the heat generated by contact
seals at various peripheral speeds,
internal bearing clearances must
also be selected with caution.
For dust proof
For preventing
lubricant leakage
Depending on its orientation, the
seal may function to prevent
lubricant from leaking out or
foreign matter from getting in.
Cautionary points regarding selection
Shaft surface roughness (reference)
Peripheral
speed m/s
∼ 5
5∼10
10∼
Surface roughness
Ra Rmax
0.8a 3.2s
0.4a 1.6s
0.2a 0.8s
Shaft material (reference)
Material
Machine structural
carbon steel, Low carbon
alloy steel, Stainless steel
Surface HRC 40 or higher necessary
hardness HRC 55 or higher advisable
Final grinding without
Processing repeat (moving), or buffed
method
after hard chrome plating
Allowable speed/temperature according to seal type/material (reference)
Seal type/material
Oil seals
Z-seal
V-ring
Nitrile rubber
Acrylic rubber
Fluorinated rubber
Nitrile rubber
Nitrile rubber
A-81
Allowable
peripheral speed
π×d(mm)×n(r/min)
m/s（V(m/s)＝――――――――――
）Allowable temp ˚C
60,000
16 or less
26 or less
32 or less
6 or less
40 or less
-25 ∼+120
-15 ∼+150
-30 ∼+200
-25 ∼+120
-25 ∼+120
●External bearing sealing devices
Type
Seal construction
Name
Seal characteristics and selection considerations
Combination seals
Z-seal +
Labyrinth seal
This is an example of an axial labyrinth seal which has been combined with a Zseal to increase its sealing efficiency. The axial labyrinth seal is affixed to the
shaft with a setting bolt or other method. In the diagram on the left, both the
direction of the Z-seal and the labyrinth seal are oriented to keep dust and other
contaminants out of the bearing.
Because a Z-seal has been incorporated, the allowable peripheral speed should
not exceed 6 m/s.
Labyrinth seal
+ Oil groove seal
+ Slinger
This is an example of a combination of three different non-contact seals.
It has the advantage of preventing both lubricant leakage from inside the
bearing and infiltration of dust and other contaminants from the outside.
It is widely used on mining equipment and as a sealing system with plummer
blocks in extremely dusty application conditions.
Oil groove seal
+ Slinger
+ Z-seal
This is an example where an oil groove seal and slinger have been
combined with a Z-seal to increase its sealing efficiency. In the diagram on
the left, all three seals have been oriented to keep dust and other
contaminants out of the bearing. The combination is widely used on mining
equipment and as a sealing system with plummer blocks in extremely dusty
application conditions.
A-82
●Bearing Materials
13. Bearing Materials
steel which have undergone standard heat treatment are
used at temperatures above 120˚C for long durations,
unacceptably large dimensional changes can occur. For this
reason, a dimension stabilizing treatment (TS treatment) has
been devised for very high temperature applications. This
treatment however reduces hardness of the material, thereby
reducing rolling fatigue life. (See item 3.3.2 on page A-18.)
13.1 Raceway and rolling element materials
While the contact surfaces of a bearing's raceways and
rolling elements are subjected to repeated heavy stress, they
still must maintain high precision and rotational accuracy. To
accomplish this, the raceways and rolling elements must be
made of a material that has high hardness, is resistant to
rolling fatigue, is wear resistant, and has good dimensional
stability. The most common cause of fatigue in bearings is
the inclusion of non-metallic impurities in the steel. Nonmetallic inclusion includes hard oxides that can cause fatigue
crack. Clean steel with minimal non-metallic inclusion must
therefore be used.
For standard high temperature bearings used at
temperatures from 150˚C – 200˚C, the addition of silicone to
the steel improves heat resistance and results in a bearing
with excellent rolling fatigue life with minimal dimensional
change or softening at high temperatures.
A variety of heat resistant steels are also incorporated in
bearings to minimize softening and dimensional changes
when used at high temperatures. Two of these are high
speed molybdenum steel and high speed tungsten steel. For
bearings requiring heat resistance in high speed
applications, there is also heat resistant case hardening
molybdenum steel. (refer to Table 13.3)
For all NTN bearings, steel low in oxygen content and nonmetallic impurities, then refined by a vacuum degassing
process as well as outside hearth smelting, is used. For
bearings requiring especially high reliability and long life,
steels of even higher in purity, such as vacuum melted steel
(VIM, VAR) and electro-slag melted steel (ESR), are used.
1) High/mid carbon alloy steel
In general, steel varieties which can be hardened not just
on the surface but also deep hardened by the so-called
"through hardening method" are used for the raceways and
rolling elements of bearings. Foremost among these is high
carbon chromium bearing steel, which is widely used. For
large type bearings and bearings with large cross sectional
dimensions, induction hardened bearing steel incorporating
manganese or molybdenum is used. Also in use is midcarbon chromium steel incorporating silicone and
manganese, which gives it hardening properties comparable
to high carbon chromium steel.
Table 13.1 gives chemical composition of representative
high carbon chrome bearing steel that meets JIS standards.
SUJ2 is frequently used. SUJ3 with enhanced hardening
characteristics containing a large quantity of Mn is used for
large bearings. SUJ5 is SUJ3 to which Mo has been added
to further enhance hardening characteristics, and is used for
oversized bearings or bearings with thick walls.
The chemical composition of SUJ2 is equivalent to AISI
52100 (US) and DIN 100Cr6 (Germany).
4) Corrosion resistant bearing steel
For applications requiring high corrosion resistance,
stainless steel is used. To achieve this corrosion resistance
a large proportion of the alloying element chrome is added to
martensite stainless steel. (Table 13.4)
5) Induction hardened steel
Besides the use of surface hardening steel, induction
hardening is also utilized for bearing raceway surfaces, and
for this purpose mid-carbon steel is used for its lower carbon
content instead of through hardened steel. For induction
hardening of the deep layers required for larger bearings and
bearings with large surface dimensions, mid-carbon steel is
fortified with chrome and molybdenum.
6) Other bearing materials
For ultra high speed applications and applications requiring
very high level corrosion resistance, ceramic bearing
materials such as Si3N4 are also available.
13.2 Cage materials
2) Case hardened (carburizing) steel
Carburizing hardens the steel from the surface to the
proper depth, forming a relatively soft core. This provides
hardness and toughness, making the material suitable for
impact loads. NTN uses case hardened steel for almost all of
its tapered roller bearings. In terms of case hardened steel
for NTN's other bearings, chromium steel and chrome
molybdenum steel are used for small to medium sized
bearings, and nickel chrome molybdenum steel is used for
large sized bearings.
Table 13.2 gives the chemical composition of
representative JIS case hardened steel.
Bearing cage materials must have the strength to
withstand rotational vibrations and shock loads. These
materials must also have a low friction coefficient, be light
weight, and be able to withstand bearing operation
temperatures.
For small and medium sized bearings, pressed cages of
cold or hot rolled steel with a low carbon content of approx.
0.1% are used. However, depending on the application,
austenitic stainless steel is also used.
Machined cages are generally used for large bearings.
Carbon steel for machine structures or high-strength cast
brass is frequently used for the cages, but other materials
such as aluminum alloy are also used.
3) Heat resistant bearing steel
When bearings made of ordinary high carbon chromium
A-83
●Bearing Materials
Tables 13.5 and 13.6 give the chemical composition for
these representative cage materials.
also widely used for cages. Polyamide resin reinforced with
glass fibers is generally used. Cages made of high-polymer
materials are lightweight and corrosion resistant. They also
have superior damping and characteristics and lubrication
performance. Heat resistant polyimide resins now enable
the production of cages that perform well in
applications ranging between -40˚C – 120˚C. However,
they are not recommended for use at temperatures
exceeding 120˚C.
Besides high-strength brass, medium carbon nickel,
chrome and molybdenum that has been hardened and
tempered at high temperatures are also used for bearings
used in aircraft. The materials are often plated with silver to
enhance lubrication characteristics.
High polymer materials that can be injection molded are
Table 13.1 Chemical composition of representative high carbon chrome bearing steels
Standard
JIS G 4805
ASTM A295
ASTM A485
Symbol
SUJ2
SUJ3
SUJ5
52100
Grade 1
Grade 3
C
0.95∼1.10
0.95∼1.10
0.95∼1.10
0.98∼1.10
0.90∼1.05
0.95∼1.10
Chemical composition (%)
Mn
P
S
Max. 0.50
Max. 0.025
Max. 0.025
0.90∼1.15
Max. 0.025
Max. 0.025
0.90∼1.15
Max. 0.025
Max. 0.025
0.25∼0.45
Max. 0.025
Max. 0.025
0.95∼1.25
Max. 0.025
Max. 0.025
0.65∼0.90
Max. 0.025
Max. 0.025
Si
0.15∼0.35
0.40∼0.70
0.40∼0.70
0.15∼0.35
0.45∼0.75
0.15∼0.35
Remarks
Cr
1.30∼1.60
0.90∼1.20
0.90∼1.20
1.30∼1.60
0.90∼1.20
1.10∼1.50
Mo
Max. 0.08
Max. 0.08
0.10∼0.25
Max. 0.10
Max. 0.10
0.20∼0.30
SUJ2 equivalent
SUJ3 equivalent
SUJ5 equivalent
Ni
―
―
0.40∼0.70
1.60∼2.00
4.00∼4.50
―
―
0.40∼0.70
1.65∼2.00
3.00∼3.50
Cr
0.90∼1.20
0.90∼1.20
0.40∼0.65
0.40∼0.65
0.70∼1.00
0.70∼0.90
0.40∼0.60
0.40∼0.60
0.40∼0.60
1.00∼1.40
Mo
―
0.15∼0.30
0.15∼0.30
0.15∼0.30
0.15∼0.30
―
0.08∼0.15
0.15∼0.25
0.20∼0.30
0.08∼0.15
Table 13.2 Chemical composition of representative case hardened steel (carburizing steel)
Standard
JIS G 4104
JIS G 4105
JIS G 4103
ASTM A534
Symbol
SCr420
SCM420
SNCM220
SNCM420
SNCM815
5120
4118
8620
4320
9310
C
0.18∼0.23
0.18∼0.23
0.17∼0.23
0.17∼0.23
0.12∼0.18
0.17∼0.22
0.18∼0.23
0.18∼0.23
0.17∼0.22
0.08∼0.13
Si
0.15∼0.35
0.15∼0.35
0.15∼0.35
0.15∼0.35
0.15∼0.35
0.15∼0.35
0.15∼0.35
0.15∼0.35
0.15∼0.35
0.15∼0.35
Chemical composition (%)
P
S
Max. 0.030
Max. 0.030
Max. 0.030
Max. 0.030
Max. 0.030
Max. 0.030
Max. 0.030
Max. 0.030
Max. 0.030
Max. 0.030
Max. 0.030
Max. 0.040
Max. 0.030
Max. 0.040
Max. 0.030
Max. 0.040
Max. 0.030
Max. 0.040
Max. 0.025
Max. 0.025
Mn
0.60∼0.85
0.60∼0.85
0.60∼0.90
0.40∼0.70
0.30∼0.60
0.70∼0.90
0.70∼0.90
0.70∼0.90
0.45∼0.65
0.45∼0.65
Table 13.3 Chemical composition of high-speed steel
Standard
AMS
6491 (M50)
5626
2315 (M50NiL)
Chemical composition (%)
C
Si
Mn
P
S
Cr
Mo
V
Ni
Cu
0.77∼0.85 Max. 0.25 Max. 0.35 Max. 0.015 Max. 0.015 3.75∼4.25 4.00∼4.50 0.90∼1.10 Max. 0.15 Max. 0.10
0.65∼0.80 0.20∼0.40 0.20∼0.40 Max. 0.030 Max. 0.030 3.75∼4.50 Max. 1.00 0.90∼1.30
―
―
0.11∼0.15 0.10∼0.25 0.15∼035 Max. 0.015 Max. 0.010 4.00∼4.25 4.00∼4.50 1.13∼1.33 3.20∼3.60 Max. 0.10
Co
W
Max. 0.25 Max. 0.25
17.25∼18.25
―
Max. 0.25 Max. 0.25
Table 13.4 Chemical composition of stainless steel
Standard
JIS G 4303
AISI
Symbol
C
0.95∼1.20
0.95∼1.20
SUS440C
440C
Si
Max. 1.00
Max. 1.00
Chemical composition (%)
Mn
P
Max. 1.00
Max. 0.040
Max. 1.00
Max. 0.040
S
Max. 0.030
Max. 0.030
Cr
16.00∼18.00
16.00∼18.00
Mo
Max. 0.75
Max. 0.75
Table 13.5 Chemical composition of steel plate for pressed cages and carbon steel for machined cages
Pressed
retainer
Machined retainer
Standard
Symbol
JIS G 3141
JIS G 3131
BAS 361
JIS G 4305
JIS G 4051
SPCC
SPHC
SPB2
SUS304
S25C
C
―
―
0.13∼0.20
Max. 0.08
0.22∼0.28
Si
―
―
Max. 0.04
Max. 1.00
0.15∼0.35
Chemical composition (%)
Mn
P
―
―
―
Max. 0.050
0.25∼0.60 Max. 0.030
Max. 2.00
Max. 0.045
0.30∼0.60 Max. 0.030
S
―
Max. 0.050
Max. 0.030
Max. 0.030
Max. 0.035
Ni
Cr
―
―
―
―
―
―
8.00∼10.50 18.00∼20.00
―
―
Table 13.6 Chemical composition of high-strength cast brass for machined cages
Standard
JIS H 5120
Symbol
CAC301
Cu
Zn
55.0∼60.0 33.0∼42.0
Chemical composition (%)
Mn
Fe
Al
0.1∼1.5
0.5∼1.5
0.5∼1.5
A-84
Sn
Max. 1.0
Ni
Max. 1.0
Impurities
Pb
Si
Max. 0.4
Max. 0.1
●Shaft and Housing Design
14. Shaft and Housing Design
14.1 Fixing of bearings
Depending upon the design of a shaft or housing, the
shaft may be influenced by an unbalanced load or other
factors which can then cause large fluctuations in bearing
efficiency. For this reason, it is necessary to pay attention
to the following when designing shaft and housing:
When fixing a bearing in position on a shaft or housing,
there are many instances where the interference fit alone
is not enough to hold the bearing in place. Bearings must
be fixed in place by various methods so that they do not
move axially when placed under load.
Moreover, even bearings which are not subjected to
axial loads (such as cylindrical roller bearings, etc.),
must be fixed in place axially because of the potential
for ring displacement due to shaft deflection by
moment load which may cause damage.
Table 14.1 shows general bearing fixing methods, and
Table 14.2 shows fixing methods for bearings with
tapered bores.
1) Bearing arrangement selection; most effective fixing
method for bearing arrangement
2) Selection of shoulder height and fillet radius of
housing and shaft.
3) Shape precision and dimensions of fitting; area
runout tolerance of shoulder.
4) Machining precision and mounting error of housing
and shaft suitable for allowable alignment angle and
inclination of bearing.
Table 14.1 General bearing fixing methods
Inner ring clamp
Outer ring clamp
Snap ring
The most common method of fixing bearings in place is to use
clamping nuts or bolts to hold the bearing or housing abutment
against the ring end face.
Use of snap rings regulated under JIS B 2804, B 2805, and B 2806,
makes construction very simple. However, interference with
chamfers, bearing installation dimensions, and other related
specifications must be considered carefully.
Snap rings are not suitable for applications requiring high accuracy
and where the snap ring receives large axial loads.
Table 14.2 Fixing methods for bearings with tapered bores
Adapter sleeve mounting
Withdrawal sleeve mounting
When installing bearings on cylindrical shafts, adapter sleeves or
withdrawal sleeves can be used to fix bearings in place axially.
Split ring mounting
For installation of tapered bore bearings directly on tapered shafts,
the bearing is held in place by a split ring inserted into a groove on
the shaft, and is fixed in place by a split ring nut or screw.
The adapter sleeve is fastened in place by frictional force between
the shaft and inner diameter of the sleeve.
A-85
●Shaft and Housing Design
14.2.2 For spacer and ground undercut
In cases where a fillet radius (ra max) larger than the
bearing chamfer dimension is required to strengthen the
shaft or to relieve stress concentration (Fig. 14.1a), or
where the shaft abutment height is too low to afford
adequate contact surface with the bearing (Fig. 14.1b),
spacers may be used effectively.
14.2 Bearing fitting dimensions
14.2.1 Abutment height and fillet radius
The shaft and housing abutment height (h) should be
larger than the bearings' maximum allowable chamfer
dimensions (rs max), and the abutment should be designed
so that it directly contacts the flat part of the bearing end
face. The fillet radius (ra) must be smaller than the
bearing's minimum allowable chamfer dimension (rs min)
so that it does not interfere with bearing seating. Table
14.3 lists abutment height (h) and fillet radius (ra).
For bearings to be applied to very large axial loads as
well, shaft abutments (h) should be higher than the values
in the table.
rs min
ra
Relief dimensions for ground shaft and housing fitting
surfaces are given in Table 14.4.
h
ra max
rs min
h
ra
rs min
rs min
rs min
rs min
（a）
（b）
Fig. 14.1 Bearing mounting with spacer
Table 14.3 Fillet radius and abutment height
rs min
ras max
0.05
0.08
0.1
0.15
0.2
0.3
0.6
1
1.1
1.5
2
2.1
2.5
3
4
5
6
7.5
9.5
12
15
19
0.05
0.08
0.1
0.15
0.2
0.3
0.6
1
1
1.5
2
2
2
2.5
3
4
5
6
8
10
12
15
Unit mm
h (min)
Normal use1
Special use2
0.3
0.3
0.4
0.6
0.8
1.25
2.25
2.75
3.5
4.25
5
6
6
7
9
11
14
18
22
27
32
42
b
rs min
t
rc
1
2
2.5
3.25
4
4.5
5.5
5.5
6.5
8
10
12
16
20
24
29
38
rc
t
rs min
b
Table 14.4 Relief dimensions for ground shaft
Unit mm
rs min
1
1.1
1.5
2
2.1
2.5
3
4
5
6
7.5
1 If bearing supports large axial load, the height of the shoulder must
exceed the value given here.
2 Used when axial load is light. These values are not suitable for
tapered roller bearings, angular ball bearings and spherical roller
bearings.
Note: ras max maximum allowable fillet radius.
A-86
Relief dimensions
b
t
rc
2
2.4
3.2
4
4
4
4.7
5.9
7.4
8.6
10
0.2
0.3
0.4
0.5
0.5
0.5
0.5
0.5
0.6
0.6
0.6
1.3
1.5
2
2.5
2.5
2.5
3
4
5
6
7
●Shaft and Housing Design
14.2.3 Thrust bearings and fitting dimensions
For thrust bearings, it is necessary to make the raceway
disc back face sufficiently broad in relation to load and
rigidity, and fitting dimensions from the dimension tables
should be adopted. (Figs. 14.2 and 14.3)
For this reason, shaft and abutment heights will be
larger than for radial bearings. (Refer to dimension tables
for all thrust bearing fitting dimensions.)
14.4 Allowable bearing misalignment
A certain amount of misalignment of a bearing's inner
and outer rings occurs as a result of shaft flexure, shaft
or housing finishing irregularities, and minor installation
error. In situations where the degree of misalignment is
liable to be relatively large, self-aligning ball bearings,
spherical roller bearings, bearing units and other
bearings with aligning properties are advisable. Although
allowable misalignment will vary according to bearing
type, load conditions, internal clearances, etc., Table
14.6 lists some general misalignment standards for
normal applications. In order to avoid shorter bearing life
and cage failure, it is necessary to maintain levels of
misalignment below these standard levels.
Table 14.6 Bearing type and allowable misalignment/alignment
allowance
Allowable misalignment
Fig. 14.2
Deep groove ball bearings
Angular contact ball bearings
Single row
Multi row
back to back arrangement
Face to face arrangement
Cylindrical roller bearings
Bearing series 2, 3, 4
Bearing series 22, 23, 49, 30
Fig. 14.3
14.3 Shaft and housing accuracy
Table 14.5 shows the accuracies for shaft and housing
fitting surface dimensions and configurations, as well as
fitting surface roughness and abutment squareness for
normal operating conditions.
Tapered roller bearings
Single row/back to back arrangement
Face-to-face arrangement
Needle roller bearings
Thrust bearings
excluding
self-aligning roller
thrust bearings
Table 14.5 Shaft and housing accuracy
Characteristics
Dimensional accuracy
Roundness (max.)
Cylindricity
Shaft
Housing
IT6 (IT5)
IT7 (IT5)
IT3
IT4
1/1,000∼1/300
1/1,000
1/10,000
1/10,000
1/1,000
1/1,000
1/2,000
1/2,000
1/1,000
1/2,000
1/10,000
Alignment allowance
Abutment squareness
IT3
IT3
Fitting
Small size bearings
surface
roughness Mid-large size bearings
0.8a
1.6a
1.6a
3.2a
Note: For precision bearings (P4, P5 accuracy), it is necessary to
increase the circularity and cylindricity accuracies in this table
by approximately 50%. For more specific information, please
consult the NTN precision rolling bearing catalog.
A-87
Self-aligning ball bearings
Spherical roller bearings
1/20∼1/15
1/50∼1/30
Self-aligning roller thrust bearings
Ball bearing units
Without cover
With cover
1/30
1/30
1/50
●Bearing Handling
15. Bearing Handling
Bearings are precision parts and, in order to preserve
their accuracy and reliability, care must be exercised in
their handling.
In particular, bearing cleanliness must be maintained,
sharp impacts avoided, and rust prevented.
15.2.1 Installation preparations
Bearings should be fitted in a clean, dry work area.
Especially for small and miniature bearings, a "clean
room" should be provided as any contamination particles
in the bearing will greatly affect bearing efficiency.
All dirt, burrs or metal filings must be removed from the
shaft, housing and tools used for mounting the bearings.
Shaft and housing fitting surfaces should also be checked
for roughness, dimensional and design accuracy, and to
ensure that they are within allowable tolerance limits.
Bearings should not be unwrapped until just prior to
installation. Normally, bearings to be used with grease
lubricant can be installed as is, without removing the rust
prevent oil. However, for bearings which will use oil
lubricant, or in cases where mixing the grease and rust
prevent oil would result in loss of lubrication efficiency,
the rust prevent oil should be removed by washing with
benzene or petroleum solvent and dried before
installation. Bearings should also be washed and dried
before installation if the package has been damaged or
there are other chances that the bearings have been
contaminated. Double shielded bearings and sealed
bearings should never be washed.
15.1 Bearing storage
Most rolling bearings are coated with a rust prevent oil
before being packed and shipped, and they should be
stored at room temperature with a relative humidity of
less than 60%.
15.2 Installation
When bearings are being installed on shafts or in
housings, the bearing rings should never be struck
directly with a hammer or a drift, as shown in Fig.
15.1, because damage to the bearing may result.
Any force applied to the bearing should always be
evenly distributed over the entire bearing ring
face. Also, when fitting both rings simultaneously,
applying pressure to one ring only, as shown in Fig.
15.2, should be avoided because indentations in the
raceway surface may be caused by the rolling
elements, or other internal damage may result.
15.2.2 Installing cylindrical bore bearings
For bearings with relatively small interference, the entire
circumference of the raceway can be uniformly press-fit at
room temperature as shown in Fig. 15.3. Usually,
bearings are installed by striking the sleeve with a
hammer; however, when installing a large number of
bearings, a mechanical or hydraulic press should be
used.
When installing non-separable bearings on a shaft and
in a housing simultaneously, a pad which distributes the
fitting pressure evenly over the inner and outer rings is
used as shown in Fig. 15.4. If the fitting is too tight or
bearing size is large, a considerable amount of force is
required to install the bearing at room temperature.
Installation can be facilitated by heating and expanding
the inner ring beforehand. The required relative
temperature difference between the inner ring and the
shaft depends on the amount of interference and the
shaft fitting surface diameter. FIg. 15.5 shows the relation
between the bearing inner bore diameter temperature
differential and the amount of thermal expansion. In any
Fig. 15.1
Pressure
distribution
pad
Fig. 15.3 Fitting sleeve
pressure against
inner ring
Fig. 15.2
A-88
Fig. 15.4 Fitting sleeve pressure
against inner /outer
ring simultaneously
●Bearing Handling
220
50
℃
℃
260
240
40
℃
Diametric expansion of inner ring bore μm
240
60
260
280
8 0℃
70
℃
Ris
diff e in te
bef erence mp.
hea ore/af
bea ting ter
ring
90℃
280
200
r6
inner ring
220
30
℃
180
200
180
160
160
140
p6
140
120
n6
120
100
m6
100
80
Removal pawl
Fig. 15.6 Removal of inner ring using an induction heater
80
60
k5
60
40
j5
40
20
20
50
100 150 200 250 300 350 400 450
500 550 600
Bearing bore diameter mm
Fig. 15.5 Temperature required for heat-fitting inner ring
event, bearings should never be heated above 120˚C.
The most commonly used method of heating bearings is
to immerse them in hot oil. This method must not be used
for sealed bearings or shield bearings with grease sealed
inside.
To avoid overheating parts of the bearings they should
never be brought into direct contact with the heat source,
but instead should be suspended inside the heating tank
or placed on a wire grid.
If heating the bearing with air in a device such as a
thermostatic chamber, the bearing can be handled while
dry.
For heating the inner rings of NU, NJ or NUP cylindrical
and similar type bearings without any ribs or with only a
single rib, an induction heater can be used to quickly heat
bearings in a dry state (must demagnetize).
When heated bearings are installed on shafts, the
inner rings must be held against the shaft abutment
until the bearing has been cooled in order to prevent
clearance between the ring and the abutment face.
As shown in Fig. 15.6, a removal pawl, or tool, can also
be used to dismount the inner ring when using the
induction heating method described above.
a) Installation on tapered bore b) Installation with adapter sleeve
c) Installation using withdrawal sleeve
Fig. 15.7 Installation methods using locknuts
15.2.3 Installation of tapered bore bearings
Small type bearings with tapered bores are installed
over a tapered shaft, withdrawal sleeves, or adapter
sleeves by driving the bearing into place using a locknut.
The locknut is tightened using a hammer or impact
wrench. (Fig. 15.7)
Large size bearings require considerable fitting force
and must be installed hydraulically.
In Fig. 15.8 the fitting surface friction and nut tightening
torque needed to install bearings with tapered bores
directly onto tapered shafts are decreased by injecting
Fig. 15.8 Installation utilizing oil injection
A-89
●Bearing Handling
Fig. 15.10 Installation using hydraulic withdrawal sleeve
a) Installation on tapered shaft
b) Installation with adapter sleeve
Thickness gauge
c) Installation with withdrawal sleeve
Fig. 15.11 Internal clearance measurement method for
spherical roller bearings
Fig. 15.9 Installation using hydraulic nut
high pressure oil between the fitting surfaces.
Fig. 15.9 a) shows one method of installation where a
hydraulic nut is used to drive the bearing onto a tapered
shaft.
Fig. 15.9 b) and c) show installation using a hydraulic
nut with adapter sleeves and withdrawal sleeves.
Fig. 15.10 shows an installation method using a
hydraulic withdrawal sleeve.
With tapered bore bearings, as the inner ring is driven
axially onto the shaft or adapter or withdrawal sleeve, the
interference will increase and the bearing internal radial
clearance will decrease. Interference can be estimated by
measuring decrease in internal radial clearance. As
shown in Fig. 15.11, the internal radial clearance
between the rollers and outer ring of spherical roller
bearings should be measured with a thickness gauge
under no load while the rollers are held in the correct
position. Instead of using the decrease in amount of
internal radial clearance to estimate the interference, it is
possible to estimate by measuring the distance the
bearing has been driven onto the shaft.
For spherical roller bearings, Table 15.1 indicates the
appropriate interference which will be achieved as a
result of the internal radial clearance decrease, or the
distance the bearing has been driven onto the shaft.
For conditions such as heavy loads, high speeds, or
when there is a large temperature differential between the
inner and outer rings, etc. which require large interference
fits, bearings which have a minimum internal radial
clearance of C3 or greater should be used. Table 15.1
lists the maximum values for internal radial clearance
decrease and axial displacement. For these applications,
the remaining clearance must be greater than the
minimum allowable residual clearance listed in Table 15.1.
15.2.4 Installation of outer ring
Even for tight interference fits, the outer rings of small
type bearings can be installed by driving them into
housings at room temperature. For large interference type
bearings, the housing can be heated before installing the
bearing, or the bearing's outer ring can be cooled with dry
ice, etc. before installing. If dry ice or other cooling agent
is used, atmospheric moisture will condense on bearing
surfaces, and therefore appropriate rust preventative
measures are necessary.
15.3 Internal clearance adjustment
As shown in Fig. 15.12, for angular contact ball
bearings and tapered roller bearings the desired amount
of axial internal clearance can be set at the time of
installation by tightening or loosening the adjustment nut.
To adjust the suitable axial internal clearance or amount
of bearing preload, the internal clearance can be
measured while tightening the adjusting nut as shown in
Fig. 15.13. Other methods are to check rotation torque by
rotating the shaft or housing while adjusting the nut, or to
insert shims of the proper thickness as shown in Fig.
15.14.
A-90
●Bearing Handling
Table 15.1 Installation of tapered bore spherical roller bearings
Nominal bearing
bore diameter
d
over
incl.
Reduction of radial
internal clearance
Units mm
Minimum allowable
residual clearance
Axial displacement drive up
Taper, 1:12
Taper, 1:30
Min
Max
Min
Max
Min
Max
CN
C3
C4
30
40
50
40
50
65
0.02
0.025
0.03
0.025
0.03
0.035
0.35
0.4
0.45
0.4
0.45
0.6
ー
ー
ー
ー
ー
ー
0.015
0.02
0.025
0.025
0.03
0.035
0.04
0.05
0.055
65
80
100
80
100
120
0.04
0.045
0.05
0.045
0.055
0.06
0.6
0.7
0.75
0.7
0.8
0.9
ー
1.75
1.9
ー
2.25
2.25
0.025
0.035
0.05
0.04
0.05
0.065
0.07
0.08
0.1
120
140
160
140
160
180
0.065
0.075
0.08
0.075
0.09
0.1
1.1
1.2
1.3
1.2
1.4
1.6
2.75
3
3.25
3
3.75
4
0.055
0.055
0.06
0.08
0.09
0.1
0.11
0.13
0.15
180
200
225
200
225
250
0.09
0.1
0.11
0.11
0.12
0.13
1.4
1.6
1.7
1.7
1.9
2
3.5
4
4.25
4.25
4.75
5
0.07
0.08
0.09
0.1
0.12
0.13
0.16
0.18
0.2
250
280
315
280
315
355
0.12
0.13
0.15
0.15
0.16
0.18
1.9
2
2.4
2.4
2.5
2.8
4.75
5
6
6
6.25
7
0.1
0.11
0.12
0.14
0.15
0.17
0.22
0.24
0.26
355
400
450
400
450
500
0.17
0.2
0.21
0.21
0.24
0.26
2.6
3.1
3.3
3.3
3.7
4
6.5
7.75
8.25
8.25
9.25
10
0.13
0.13
0.16
0.19
0.2
0.23
0.29
0.31
0.35
500
560
630
560
630
710
0.24
0.26
0.3
0.3
0.33
0.37
3.7
4
4.6
4.6
5.1
5.7
9.25
10
11.5
11.5
12.5
14.5
0.17
0.2
0.21
0.25
0.29
0.31
0.36
0.41
0.45
710
800
900
800
900
1,000
0.34
0.37
0.41
0.43
0.47
0.53
5.3
5.7
6.3
6.7
7.3
8.2
13.3
14.3
15.8
16.5
18.5
20.5
0.23
0.27
0.3
0.35
0.39
0.43
0.51
0.57
0.64
1,000
1,120
1,120
1,250
0.45
0.49
0.58
0.63
6.8
7.4
8.7
9.4
17
18.5
22.5
24.5
0.32
0.34
0.48
0.54
0.7
0.77
Fig. 15.12 Axial internal clearance adjustment
Shim
Fig. 15.13 Measurement of axial internal clearance adjustment
Fig. 15.14 Internal clearance adjustment using shims
A-91
●Bearing Handling
15.4 Post installation running test
To insure that the bearing has been properly installed, a
running test is performed after installation is completed.
The shaft or housing is first rotated by hand and if no
problems are observed low speed, no load power test is
performed. If no abnormalities are observed, the load
and speed are gradually increased to operating
conditions. During the test if any unusual noise,
vibration, or temperature rise is observed the test
should be stopped and examine the equipment. If
necessary, the bearing should be disassembled for
inspection.
To check bearing running noise, the sound can be
amplified and the type of noise ascertained with a
listening instrument placed against the housing. A clear,
smooth and continuous running sound is normal. A high,
metallic or irregular sound indicates some error in
function. Vibration can be accurately checked with a
vibration measuring instrument, and the amplitude and
frequency characteristics measured guantitatively.
Usually the bearing temperature can be estimated from
the housing surface temperature. However, if the bearing
outer ring is accessible through oil inlets, etc., the
temperature can be more accurately measured.
Under normal conditions, bearing temperature rises
with operation time and then reaches a stable operating
temperature after a certain period of time. If the
temperature does not stable and continues to rise, or if
there is a sudden temperature rise, or if the temperature
is extremely high, the bearing should be inspected.
a）
b）
Fig. 15.15 Puller disassembly
Fig. 15.16 Press disassembly
15.5 Bearing disassembly
Bearings are often removed as part of periodic
inspection procedures or during the replacement of other
parts. However, the shaft and housing are almost always
reinstalled, and in more than a few cases the bearings
themselves are reused. These bearings, shafts, housings,
and other related parts must be designed to prevent
damage during disassembly procedures, and the proper
disassembly tools must be employed. When removing
raceways with interference, pulling force should be
applied to the raceway only. Do not remove the
raceway through the rolling elements.
Groove
Groove
15.5.1 Disassembly of bearings with cylindrical bores
For small type bearings, the pullers shown in Fig. 15.15
a) and b) or the press method shown in Fig. 15.16 can be
used for disassembly. When used properly, these
methods can improve disassembly efficiency and prevent
damage to bearings.
To facilitate disassembly procedures, attention should
be given to planning the designs of shafts and housings,
such as providing extraction grooves on the shaft and
housing for puller claws as shown Figs. 15.17 and 15.18.
Threaded bolt holes should also be provided in housings
to facilitate the pressing out of outer rings as shown in
Fig. 15.19.
Fig. 15.17 Extracting grooves
Groove
Fig. 15.18 Extraction groove for outer ring disassembly
A-92
●Bearing Handling
15.5.2 Disassembly of bearings with tapered bores
Small bearings installed using an adapter are removed
by loosening the locknut, placing a block on the edge of
the inner ring as shown in Fig. 15.21, and tapping with a
hammer. Bearings which have been installed with
withdrawal sleeves can be disassembled by tightening
down the lock nut as shown in Fig. 15.22.
For large type bearings on tapered shafts, adapters, or
withdrawal sleeves, disassembly is greatly facilitated by
hydraulic methods. Fig. 15.23 shows the case where the
bearing is removed by applying hydraulic pressure on the
fitting surface of a bearing installed on a tapered shaft.
Large bearings, installed with tight fits, and having been
in service for a long period of time, will likely have
developed fretting corrosion on fitting surfaces and will
require considerable dismounting force. In such
instances, dismounting friction can be reduced by
injecting oil under high pressure between the shaft and
inner ring surfaces as shown in Fig. 15.20.
For NU, NJ and NUP type cylindrical roller bearings, the
induction heating unit shown in Fig. 15.6 can be used to
facilitate removal of the inner ring by means of thermal
expansion. This method is highly efficient for frequent
disassembly of bearings with identical dimensions.
Reinforcing plate
Fig. 15.19 Outer ring disassembly bolt
Fig. 15.21 Disassembly of bearing with adapter
Hydraulic
pressure
Hydraulic
pressure
Fig. 15.20 Removal by hydraulic pressure
Fig. 15.22 Disassembly of bearing with withdrawal sleeve
Reinforcing plate
Fig. 15.23 Removal of bearing by hydraulic pressure
A-93
●Bearing Handling
Fig. 15.24 shows two methods of disassembling
bearings with adapters or withdrawal sleeves using a
hydraulic nut. Fig. 15.25 shows a disassembly method
using a hydraulic withdrawal sleeve where high pressure
oil is injected between fitting surfaces and a nut is then
employed to remove the sleeve.
15.6 Bearing maintenance and inspection
In order to get the use the bearing to its full potential
and keep it in good working condition as long as possible,
maintenance and inspections should be performed. Doing
so will enable early detection of any problems with the
bearing.
This will enable you to prevent bearing failure before it
happens, and will enhance productivity and cost
performance.
The following measures are often taken as a general
method of maintaining and managing bearings.
Maintenance management requires inspection items
and frequency for performing routine inspections be
determined according to the importance of the device or
machine.
15.6.1 Inspection of machine while running
The interval for replenishing and replacing lubricant is
determined by a study of lubricant nature and checking
the bearing temperature, noise and vibration.
a) Disassembly of adapter sleeve
15.6.2 Observation of bearing after use
Take note of any problem that may appear after the
bearing is used or when performing routine inspections,
and take measures for preventing reoccurrence of any
damage discovered. For types of bearing damage and
countermeasures for preventing damage, see section 16.
b) Disassembly of withdrawal sleeve
fig. 15.24 Disassembly using hydraulic nut
Fig. 15.25 Disassembly using hydraulic withdrawal sleeve
A-94
A-95
●Bearing Damage and Corrective Measures
16. Bearing Damage and Corrective Measures
conditions and surrounding structure. By investigating
several possible causes surmised from the type of
damage and condition at the time the damage occurred, it
is possible to prevent the same kind of damage from
reoccurring. Table 16.1 gives the main causes of bearing
damage and remedies for correcting the problem.
If handled correctly, bearings can generally be used for
a long time before reaching their fatigue life. If damage
occurs prematurely, the problem could stem from
improper bearing selection, handling or lubrication. In this
occurs, take note of the type of machine on which the
bearings is used, the place where it is mounted, service
Table 16.1 Bearing damage, main causes of bearing damage and remedies for correcting the problem
Description
¡Riview lubricant type and quantity.
¡Check for proper clearance.
(Increase clearances.)
¡Take steps to prevent misalignment.
¡Review application conditions.
¡Improve assembly method and
handling.
Causes
¡Excessive shock loads.
¡Improper handling (use of steel hammer,
cutting by large particles of foreign matter)
¡Formation of decomposed surface
layer due to improper lubrication
¡Excessive interference.
¡Large flaking.
¡Friction cracking.
¡Imprecision of mounting mate
(oversized fillet radius)
Correction
A-96
¡Insufficient clearance (including
clearances made smaller by local
deformation).
¡Insufficient lubrication or improper
lubricant.
¡Excessive loads (excessive preload).
¡Skewed rollers.
¡Reduction in hardness due to
abnormal temperature rise
Correction
Localized flaking occurs.
Little cracks or notches appear.
¡Select a different type of bearing.
¡Reevaluate the clearance.
¡Improve the precision of the shaft and
housing.
¡Review application conditions.
¡Improve assembly method and
handling.
¡Reevaluate the layout (design) of the
area around the bearing.
¡Review lubricant type and lubrication methods.
Causes
Cracking and
notching
The bearing heats up and becomes discolored.
Eventually the bearing will seize up.
¡Excessive load, fatigue life, improper
handling
¡Improper mounting.
¡Improper precision in the shaft or housing.
¡Insufficient clearance.
¡Contamination.
¡Rust.
¡Improper lubrication
¡Drop in hardness due to abnormally
high temperatures.
Correction
Seizure
Surface of the raceway and rolling elements peels away in flakes
Conspicuous hills and valleys form soon afterward.
Causes
Flaking
¡Review lubricant (friction crack
prevention).
¡Select proper interference and review
materials.
¡Review service conditions.
¡Improve assembly procedures and
take more care in handling.
●Bearing Damage and Corrective Measures
Table 16.1 Bearing damage, main causes of bearing damage and remedies for correcting the problem
Description
¡Shaft or housing of insufficient
accuracy.
¡Improper installation.
¡Insufficient shaft or housing rigidity.
¡Shaft whirling caused by excessive
internal bearing clearances.
Correction
¡Reinspect bearing’s internal
clearances.
¡Review accuracy of shaft and housing
finish.
¡Review rigidity of shaft and housing.
Causes
¡Inadequate lubrication.
¡Entrapped foreign particles.
¡Roller skewing due to a misaligned
bearing.
¡Bare spots in the collar oil film due to
large axial loading.
¡Surface roughness.
¡Excessive slippage of the rolling
elements.
Correction
¡Reevaluation of the lubricant type and
lubrication method.
¡Bolster sealing performance.
¡Review preload.
¡Review service conditions.
¡Improve assembly method and
handling
Causes
¡Poor storage conditions.
¡Poor packaging.
¡Insufficient rust inhibitor.
¡Penetration by water, acid, etc.
¡Handling with bare hands.
Correction
Rust and corrosion
¡Reevaluation of lubrication conditions.
¡Review of cage type selection.
¡Investigate shaft and housing rigidity.
¡Review service conditions.
¡Improve assembly method and
handling.
Causes
Smearing and
scuffing
¡Excessive moment loading.
¡High speed or excessive speed
fluctuations.
¡Inadequate lubrication.
¡Impact with foreign objects.
¡Excessive vibration.
¡Improper mounting. (Mounted
misaligned)
Correction
Rolling path
skewing
Causes
Cage damage
¡Take measures to prevent rusting
while in storage.
¡Periodically inspect the lubricating oil.
¡Improve sealing performance.
¡Improve assembly method and
handling.
Rivets break or become loose resulting in cage damage.
Abrasion or an irregular, rolling path skewing left by rolling
elements along raceway surfaces.
The surface becomes rough and some small deposits form.
Scuffing generally refers to roughness on the race collar and the
ends of the rollers.
The surface becomes either partially or fully rusted, and occasionally
rust even occurs along the rolling element pitch lines.
A-97
●Bearing Damage and Corrective Measures
Table 16.1 Bearing damage, main causes of bearing damage and remedies for correcting the problem
Description
¡Electric current flowing through the
rollers.
Correction
¡Create a bypass circuit for the current.
¡Insulate the bearing.
Causes
¡Entrapment of foreign objects.
¡Bite-in on the flaked-off side.
¡Dropping or other mechanical shocks
due to careless handling.
¡Assembled misaligned.
Correction
A-98
¡Review lubricant type and lubrication
methods.
¡Improve sealing performance.
¡Take steps to prevent misalignment.
Causes
Scoring during assembly, gouges due to hard foreign objects, and
surface denting due to mechanical shock.
¡Entrapment of foreign particles in the
lubricant.
¡Inadequate lubrication.
¡Skewed rollers.
Correction
Dents and
scratches
Pits form on the raceway.
The pits gradually grow into ripples.
¡Select a different kind of bearing.
¡Select a different type of lubricant.
¡Review the interference and apply a
coat of lubricant to fitting surface.
¡Pack the inner and outer rings
separately for transport.
Causes
Electrolytic
corrosion
The surfaces wear and dimensional deformation results. Wear is
often accompanied by roughness and scratches.
¡Insufficient interference.
¡Small bearing oscillation angle.
¡Insufficient lubrication.(unlubricated)
¡Fluctuating loads.
¡Vibration during transport, vibration
while stopped.
Correction
Wear
There are two types of fretting. In one, a rusty wear powder forms
on the mating surfaces. In the other, brinelling indentations form
on the raceway at the rolling element pitch.
Causes
Fretting
¡Improve handling and assembly
methods.
¡Bolster sealing performance.
(measures for preventing foreign
matter from getting in)
¡Check area surrounding bearing.
(when caused by metal fragments)
●Bearing Damage and Corrective Measures
Table 16.1 Bearing damage, main causes of bearing damage and remedies for correcting the problem
Description
¡Reevaluation of lubricant type and
lubrication method.
¡Review sealing mechanisms.
¡Examine lubrication oil purity. (filter
may be excessively dirty, etc.)
Causes
¡Infiltration of bearing by foreign matter.
¡Insufficient lubrication.
Correction
A-99
¡Infiltration of bearing by foreign matter.
¡Insufficient lubrication.
Correction
Patches of minute flaking or peeling (size, approx. 10μm).
Innumerable hair-line cracks visible though not yet peeling.
(This type of damage frequently seen on roller bearings.)
¡Reevaluate the interference.
¡Reevaluate usage conditions.
¡Review the precision of the shaft and
housing.
¡Raceway end panel scuffing
Causes
Peeling
Luster of raceway surfaces is gone; surface is matted, rough, and / or
evenly dimpled. Surface covered with minute dents.
¡Insufficient interference in the mating
section.
¡Sleeve not fastened down properly.
¡Abnormal temperature rise.
¡Excessive loads.
Correction
Speckles and
discoloration
Surface becomes mirrored by sliding of inside and outside diameter
surfaces. May by accompanied by discoloration or score.
Causes
Creeping
¡Reevaluation of lubricant type and
lubrication method.
¡Improve sealing performance. (to
prevent infiltration of foreign matter)
¡Take care to operate smoothly.
●Technical Data
17. Technical data
0.50
0.50
0.40
0.40
Axial internal clearance mm
Axial internal clearance mm
17.1 Deep groove ball bearing radial internal clearances and axial internal clearances
0.30
0.20
30
68
20
68 15
05
68 10
68
68
00
68
0.10
0.08
0.06
0.05
0.003
0.005
0.01
0.02
0.03
0.30
0.10
0.08
0.06
0.05
0.003
0.05
30
60 20
60 15
05
60 10 60
60 00
60
0.20
0.005
0.50
0.50
0.40
0.40
0.30
30
69 0
2
69 15
69 10
69 05
69
00
69
0.08
0.06
0.05
0.003
0.005
0.01
0.02
0.03
0.05
Fig. 17.1.3 Series 60 radial internal/axial internal clearances
Axial internal clearance mm
Axial internal clearance mm
Fig. 17.1.1 Series 68 radial internal/axial internal clearances
0.10
0.02
Radial internal clearance mm
Radial internal clearance mm
0.20
0.01
0.03
0.30
0.20
0.10
0.08
0.06
0.05
0.003
0.05
30
62 20
2
6
15
62 10
62 05
62
00
62
0.005
0.01
0.02
0.03
0.05
Radial internal clearance mm
Radial internal clearance mm
Fig. 17.1.2 Series 69 radial internal/axial internal clearances
Fig. 17.1.4 Series 62 radial internal/axial internal clearances
17.2 Angular contact ball bearing axial load and axial displacement
1
79
C
15
79
0C
2
79
0C
793
0.03
mm
79
05
C
0.04
0C
Axial displacement
Axial displacement
mm
0.04
0.02
0.01
0
0.03
5
790
0.02
7910
7915
7920
0.01
7930
0
0
0.5
1.0
1.5
2.0
2.5
0
Axial load kN
0.5
1.0
1.5
2.0
2.5
Axial load kN
Fig. 17.2.1 Series 79 C axial load and axial displacement
Fig. 17.2.2 Series 79 axial load and axial displacement
A-100
●Technical Data
※This data is based on typical dimensions. NTN do not guarantee at this data.
0.01
0
0
0.5
1.0
1.5
Axial load kN
2.0
Fig. 17.2.3 Series 70 C axial load and axial displacement
mm
0.03
Axial displacement
Axial displacement mm
70
05
70
0.02
7010
015
7020
7
0.01
7030
0
0.5
1.0
1.5
Axial load kN
2.0
0
05
0.5
1.0
1.5
Axial load kN
2.0
2.5
00
72
0.03
5
720
0.02
7210
721
5
7220
7230
0.01
0
0.5
1.0
1.5
2.0
2.5
Axial load kN
Fig. 17.2.7 Series 72 axial load and axial displacement
0.04
mm
0.04
0.03
0.02
0B
700
0.01
B
7005
B
7010
Axial displacement
mm
C
0.01
0
2.5
Fig. 17.2.4 Series 70 axial load and axial displacement
Axial displacement
30
0.04
00
7015B 7020B
7030B
0
72
Fig. 17.2.6 Series 72 C axial load and axial displacement
0.04
0
C C
C
10 215
20
7
72
72
0.02
0
2.5
C
0C
0.02
0.03
72
C
15 0C
70 702 30C
70
720
70
C
10
Axial displacement mm
0.03
0.04
70
05
C
0C
700
Axial displacement mm
0.04
0
0.5
1.0
1.5
Axial load kN
2.0
0.03
7205B
Fig. 17.2.5 Series 70 B axial load and axial displacement
7210B
0.01
7215B
B
7220
7230B
0
2.5
0B
720
0.02
0
0.5
1.0
1.5
Axial load kN
2.0
2.5
Fig. 17.2.8 Series 72 B axial load and axial displacement
A-101
●Technical Data
※This data is based on typical dimensions. NTN do not guarantee at this data.
17.3 Tapered roller bearing axial load and axial displacement
17.4 Allowable axial load for ball bearings
4
0.01
4T-
10X
320
5XU
3201
rie
se
150
63
Allowable axial load kN
Axial displacement mm
5X
00
32
T-
s
200
0.02
100
62
ies
ies
ser
60
eries
69 s
50
eries
0XU
3202
68 s
0
0
0
0
2.0
1.0
3.0
ser
50
100
150
Bearing bore diameter mm
4.0
Fig. 17.4.1 Allowable axial load for deep groove ball bearings
Axial load kN
Allowable axial load kN
FIg. 17.3.1 Series 320 axial load and axial displacement
U
X
10
9
32
U
15X
9
32
U
20X
329
0.01
s
rie
2C
s
erie
72 s
ies
ser
72B
50
0
50
100
Bearing bore diameter mm
150
Fig. 17.4.2 Allowable axial load for angular contact ball
bearings (72, 72B, 72C series)
0
0
1.0
2.0
3.0
4.0
Axial load kN
Fig. 17.3.2 Series 329 axial load and axial displacement
150
100
s
e
seri
79C
es
79 seri
50
0
0
50
100
150
Bearing bore diameter mm
30
5
0.02
Fig. 17.4.3 Allowable axial load for angular contact ball
bearings (79, 79C series)
0
31
30
5U
Allowable axial load kN
30
4T
4T
-
Axial displacement mm
se
7
100
0
Allowable axial load kN
Axial displacement mm
0.02
150
31
30
0.01
20U
303
5D
3030
4T-
10D
4T-303
5D
3031 U
0
0
1.0
2.0
3.0
150
100
70C
50
ries
70 se
0
0
4.0
Axial load kN
ies
ser
50
100
Bearing bore diameter mm
150
FIg. 17.3.3 Series 303/303 D axial load and axial displacement
Fig. 17.4.4 Allowable axial load for angular contact ball
bearings (70, 70C series)
Note: Values when bearing and housing are rigid bodies.
Axial displacement may become large depending on shape of
shaft/housing and fitting conditions.
Note: When an axial load acts upon deep groove or angular contact
ball bearings, allowable axial load is the load whereby the
contact ellipse exceeds the shoulder of the raceway.
A-102
●Technical Data
interference ∆d derived from the measured valued for the
bearing bore diameter and shaft. This difference is due to
the roughness or variations of the finished surfaces to be
fitted, and therefore it is necessary to assume the
following reductions in effective interference:
17.5 Fitting surface pressure
Table 17.5.1 lists equations for calculating the pressure
and maximum stress between fitting surfaces.
Table 17.5.2 can be used to determine the approximate
average groove diameter for bearing inner and outer
rings.
The effective interference, in other words the actual
interference ∆deff after fitting, is smaller than the apparent
For ground shafts: 1.0 ∼ 2.5μm
For lathed shafts : 5.0 ∼ 7.0μm
Table 17.5.1 Fitting surface pressure and maximum stress
∆deff
2
d
d
1- (
Di
)
2
do
Di
Fitting
surface
pressure
Hollow steel shaft/
inner ring fit
P=
E
∆deff
2
2
2
［1- (d / Di) ］［1- (do / d) ］
2
［1 - (do / Di) ］
∆d
∆deff
E
D
2
2
E
∆Deff ［1 - (Do / D) ］［1 - (D / Dh) ］
2
D
Steel housing/
MPa
2
｛kgf / mm ｝ outer ring fit
P=
Maximum Shaft / inner ring fit
stress
σt max = P
MPa
｛kgf / mm2｝
σt max = P
2
Housing/
outer ring fit
1 + (d / Di)
2
Outer ring inner diameter face maximum
tangential stress
2
1 – (Do / D)
Average groove diameter
Bearing type
Deep groove
ball bearings
All types
Cylindrical
roller bearings1 All types
Spherical
All types
roller bearings
1.05
4d + D
Outer ring ( Do )
0.95
5
0.98
4
2d + D
3
d + 4D
5
3d + D
1.05
d + 3D
4
0.97
Dh
∆Deff
: Housing inner diameter,
bearing outer diameter
: Outer ring average
groove diameter
: Housing outer diameter
: Effective interference
Inner ring bore diameter face maximum
tangential stress
2
1 – (d / Di)
Table 17.5.2 Average groove diameter (approximate expression)
Inner ring ( Di )
Do
2
［1 - (Do /Dh) ］
: Shaft diameter, inner ring
bore diameter
: Hollow shaft inner
diameter
: Inner ring average groove
diameter
: Effective interference
: Elasticity factor
= 208,000 MPa｛ 21,200 kgf / mm2 ｝
d + 4D
5
d: Inner ring bore diameter mm
D: Outer ring outer diameter mm
1 Average groove diameter values shown for double-flange type.
A-103
D
Dh
P=
E
do
d
d
Solid steel shaft/
inner ring fit
Di
Codes (units: N
｛kgf｝, mm)
Equation
Do
Fit conditions
Pm
2
MPa kgf/mm
250 25
200 20
150 15
kgf/mm2 MPa
5 50
4 40
3 30
2
20
1
10
100
10
50
40
5
4
30
3
20
2
10
1
p6
n6
m5
k5
0.5
0.4
5
4
0.3
3
0.2
2
0.1
1
js5
5
20
30
50
70 100
200 300
17.6 Necessary press fit and pullout force
Equations (17.1) and (17.2) below can be used to
calculate the necessary pullout force for press fit for inner
rings and shafts or outer rings and housings.
For shaft and inner rings:
Kd = μ・P・π・d・B ………………………(17.1)
For housing and outer rings:
KD = μ・P・π・D・B ………………………(17.2)
Where,
Kd : Inner ring press fit or pullout force N｛kgf｝
KD : Outer ring press fit or pullout force N｛kgf｝
P : Fitting surface pressure MPa｛kgf/mm2｝
(Refer to Table 17.5.1)
d : Shaft diameter, inner ring bore diameter mm
D : Housing inner diameter, outer ring outer
diameter mm
B : Inner or outer ring width
μ : Sliding friction coefficient (Refer to Table 17.6.1)
Maximum stress
Fitting surface pressure
●Technical Data
σt max
0.5
500
Nominal bearing bore diameter (Class 0)
mm
Fig. 17.5.1 Average fit interference as it relates to surface
pressure Pm and max. stress σt max
Pm
5
4
50
40
3
30
2
1
MPa kgf/mm2
400 40
p6
20
n6
10
m5
k5
js5
0.5
0.4
5
4
0.3
3
0.2
2
20
30
50
70 100
200 300
300
250
200
30
25
20
150
15
100
10
50
5
40
30
4
3
20
2
10
1
Table 17.6.1 Press fit and pullout sliding friction coefficient
Maximum stress
Fitting surface pressure
kgf/mm2 MPa
10 100
σt max
500
Nominal bearing bore diameter (Class 0)
mm
Fig. 17.5.2 Maximum fit interference as it relates to surface
pressure Pm and max. stress σt max
1 For recommended fitting, see page A-50.
A-104
Type
μ
Inner (outer) ring press fit onto cylindrical shaft (bore)
Inner (outer) ring pullout from cylindrical shaft (bore)
Inner ring press fit onto tapered shaft or sleeve
Inner ring pullout from tapered shaft
Sleeve press fit onto shaft/bearing
Sleeve pullout from shaft/bearing
0.12
0.18
0.17
0.14
0.30
0.33
Ball and Roller Bearings
INDEX OF BEARING TABLES
Deep Groove Ball Bearings ………………………………………………………………… B-5
Deep groove ball bearings
67,68,69,160,60,62,63,64 …………………………………………… B-8
Expansion compensating bearings
AC bearings
EC-60,EC-62,EC-63………………………………………… B-26
AC-60, AC-A2, AC-63 ………………………………………………………………… B-28
Miniature and Extra Small Ball Bearings …………………………………………… B-31
Metric series
67,68,69,60,62,63,BC ……………………………………………………………… B-34
Inch series R,RA ……………………………………………………………………………………… B-38
With ring grooves, snap rings
SC…………………………………………………………………… B-40
Angular Contact Ball Bearings …………………………………………………………… B-43
Single and duplex angular contact ball bearings
79,70,72,72B,73,73B………………………… B-46
High speed single and duplex angular contact ball bearings
Ultra-high speed angular contact ball bearings
Ceramic ball angular contact ball bearings
Four-point contact ball bearings
78C,79C,70C,72C,73C………… B-58
BNT0,BNT2,HSB9C,HSB0C ………………… B-66
5S-BNT,5S-HSB …………………………………… B-70
QJ2,QJ3 ………………………………………………………… B-72
Double row angular contact ball bearings
52,53 ………………………………………………… B-74
Self-Aligning Ball Bearings ………………………………………………………………… B-79
12(K), 22(K), 13(K), 23(K) …………………………………………………………………………… B-80
Adapters for self-aligning ball bearings ……………………………………………………………… B-86
Cylindrical Roller Bearings ………………………………………………………………… B-91
NU,NJ,NUP,N,NF10,2,22,3,23,4 ……………………………………………………………………… B-94
L type loose rib
HJ2,22,3,23,4 ……………………………………………………………………… B-112
Double row cylindrical roller bearings
Four-row cylindrical roller bearings
NN49(K),NNU49(K),NN30(K),NNU30(K) ……………… B-116
4R …………………………………………………………… B-122
B-2
Tapered Roller Bearings …………………………………………………… B-133
Metric series
329X,320X,330,331,302,322,322C,332,303,303D,313X,323,323C …………… B-142
Inch series ……………………………………………………………………………………………… B-160
Double row tapered roller bearings (back-to-back arrangement)
4130,4230,4131,4231,4302,4322,4303,4303D,4323 ………………………… B-198
Double row tapered roller bearings (face-to-face arrangement) 3230,3231 …………………… B-212
Four-row tapered roller bearings
CR0 ……………………………………………………………… B-216
Spherical Roller Bearings …………………………………………………………………… B-233
239(K),230(K),240(K30),231(K),241(K30),222(K),232(K),213(K),223(K) ……………………… B-236
Adapters for spherical roller bearings………………………………………………………………… B-256
Withdrawal sleeves for spherical roller bearings …………………………………………………… B-261
Thrust Bearings …………………………………………………………………………………… B-269
Single direction thrust ball bearings
511,512,513,514 …………………………………………… B-274
Double row angular contact thrust ball bearings
5629(M),5620(M) …………………………… B-278
High speed duplex angular contact thrust ball bearings
Spherical roller thrust bearings
HTA9DB,HTA0DB …………………… B-282
292,293,294 ……………………………………………………… B-286
B-3
●Deep Groove Ball Bearings
Open type
Shielded type
Sealed type (non-contact)
Expansion Compensating Bearing
1. Design features and special characteristics
Deep groove ball bearings are very widely used. A deep
groove is formed on each inner and outer ring of the bearing
enabling them to sustain radial and axial loads in either
direction as well as well as the complex loads which result
from the combination of these forces. Deep groove ball
bearings are suitable for high speed applications.
In addition to unsealed bearings, deep groove ball
bearings include ball bearings with greased sealed inside
(sealed or shielded) and bearings with a snap ring that
simplify structure around the bearing and design.
Table 1 shows the construction and special characteristics
of various sealed deep groove ball bearings.
Table 1 Sealed ball bearings: construction and characteristics
Type, code no.
Shielded type
Non-contact type ZZ
Sealed type
Non-contact type LLB
Contact type LLU
Low torque type LLH
¡Metal shield plate is
affixed to outside ring;
inner ring incorporates
a V-groove and
labyrinth clearance.
¡Outer ring incorporates
synthetic rubber molded
to a steel plate; seal
edge is aligned with
V-groove along inner
ring surface with
labyrinth clearance.
¡Outer ring incorporates
synthetic rubber molded
to a steel plate; seal
edge contacts V-groove
along inner ring
surface.
¡Basic construction the
same as LU type, but
specially designed lip
on edge of seal
prevents penetration by
foreign matter; low
torque construction.
Torque
Low
Low
Rather high
Medium
Dust proofing
Very good
Better than ZZ-type
Excellent
Much better than LLB-type
Water proofing
Poor
Poor
Very good
Very good
High speed capacity
Same as open type
Same as open type
Limited by contact seals
Much better than LLU-type
Allowable temp.range 1
Depends on lubricant
-25 ℃∼120 ℃
-25 ℃∼110 ℃
-25 ℃∼120 ℃
Construction
Performance comparison
1 Please consult NTN Engineering about applications which exceed the allowable temperature range of products listed on this table.
Note : This chart lists double shielded and double sealed bearings, but single shielded (Z) and single sealed (LB, LU, LH) are also available.
Grease lubrication should be used with single shielded and single sealed bearings.
B-5
●Deep Groove Ball Bearings
2. Standard cage types
As shown in Table 2, pressed cages are generally used in
deep groove ball bearings. Machined cages are however
used for large bearings and high-speed bearings.
advantage is a large reduction in the occurrence of outer ring
creeping.
(1) Allowable load
Maximum allowable load Cp (refer to the table of boundary
dimensions) has been determined in accordance with outer
ring strength; therefore, it is necessary to select a bearing
with a maximum allowable load greater than the largest
anticipated bearing load.
Table 2 Standard cage for deep groove ball bearings
Bearing series
67
68
69
160
60
62
63
64
Pressed cages
Machined cages
6700∼ 6706
6800∼ 6834
6900∼ 6934
16001∼16052
6000∼ 6052
6200∼ 6244
6300∼ 6344
6403∼ 6416
―
6836∼ 68／600
6936∼ 69／500
16056∼
16072
6056∼
6084
―
―
―
(2) Housing and bearing fit
Table 3 shows the recommended fits for bearings with
light metal alloy housings.
In cases where the bearing is going to be interference fit
with the housing, it is very important not to damage the high
polymer material. Therefore it is essential that the lip of the
housing diameter be given a 10˚–15˚ chamfer as shown in
Diagram 2.
Furthermore, as shown in Diagram 2, it is also advisable to
apply the interference fit using a press in order not force the
bearing into the housing in a misaligned position. (Diagram 2)
3. Other bearing types
3. 1 Bearings with snap rings
Some bearings accommodate a snap ring which is
attached along the outer diameter of the outer ring. By using
snap rings, positioning in the axial direction is possible and
housing installation is simplified. In addition to open type,
shielded and sealed types are also manufactured. Consult
NTN Engineering.
(3) Radial internal clearance
Regulations for radial internal clearance are the same as
those for standard deep groove ball bearings. For standard
fit and application conditions, a C3 clearance is used with
3. 2 Expansion compensating bearings
(creep prevention bearings)
Table 3 Recommended fits for outer ring and housing bore
The boundary dimensions of expansion compensating deep
groove ball bearings are the same as for standard bearings,
but formed high polymer material with a high expansion rate
is provided in the grooves on the outer circumference of the
outer ring (see Diagram 1) .
Due to the extremely small difference of thermal expansion
attained between the fitted surfaces of the high polymer
equipped outer ring and the light alloy bearing housing, a
good interference fit can be achieved with stable
performance across a wide temperature range. Another
Conditions
High polymer material
Load type, etc.
Housing material
Rotating outer ring load
Rotating inner ring load;
light load
Direction indeterminate load;
ordinary load
Al alloy
Mg alloy
Other light alloys
Rotating outer ring load;
heavy load
Direction indeterminate load;
shock load
Al alloy
Mg alloy
Other light alloys
0.5mm
over
Diagram 1. Expansion compensating bearings
Suitable
bearing
Housing bore
tolerance class
Deep groove
ball bearing
H6
Cylindrical
roller bearing
Thickwalled type
deep groove
ball bearing
N6
10°
∼15°
Diagram 2. Fitting method and housing inner diameter chamfer
B-6
●Deep Groove Ball Bearings
this bearing.
For more detailed information concerning this bearing and
the availability of roller bearings contact NTN Engineering.
in the outside circumference of the outer ring. (Diagram 3)
This bearing has a steel housing, can withstand rotating
outer ring loads, and is suitable for applications where a "tight
fit" is not possible but the fear of creeping exists. With its
capacity for axial load displacement, an AC bearing can also
be installed as a floating side bearing to accommodate shaft
fluctuations. Before installing the bearing into the housing,
high viscosity oil (base oil viscosity, 100 mm2/s or more) or
grease should be applied to the space between the two Orings. This lubricant forms a thin oil layer inside the bearing
which prevents contact between the outer ring and housing,
lowers the coefficient of friction, and is still able to prevent
creeping by utilizing the friction force of the O-rings.Outer ring
spin is prevented by friction force of the O-ring and housing.
(4) Allowable temperature range
-20∼120˚C
3.3 Long-life bearings (TMB/TAB bearings)
Boundary dimensions of long-life bearings are the same as
those of standard deep groove ball bearings, but the
bearings have undergone special heat treatment that
considerably extends wear life.
These bearings are especially effective in countering
reduced wear life due to the effects of infiltration by dust and
other foreign matter.
Features are as follows:
¡Rated load is the same as standard bearings, but shaft
characteristics factor is a2 = 2.2 for TMB bearings and a2
= 3.6 for TAB.
¡TMB 62 series bearings can be used in place of
standard 63 series bearings enabling lighter weight,
more compact designs
¡Greater resistance to reduced wear life due to infiltration
by dust and other foreign matter
For dimensional specifications, handling procedures, and
other detailed information concerning AC bearings, contact
NTN Engineering.
(1) Allowable load
Because allowable load Cp that takes outer ring strength
into account (see dimensions table) is established, selection
must be made so that maximum load on the bearing does
not exceed Cp.
(2) Fit with housing
Table 4 gives recommended fit with steel housing.
Dimensions for these bearings are not provided in the
dimensions table. For details, please contact NTN
Engineering.
30˚
Oil
Min. 0.006D
AC bearings have the same boundary dimensions as
standard bearings with the addition of two O-rings imbedded
O-rings
φD G7
3.4 AC bearings (creep prevention bearings)
Diagram 4. Housing
Table 4 dimensions and shape
Housing bore tolerance
G7
Housing bore entrance chamfer
Max. 30˚C
Housing bore chamfer grinding undercut
Min. 0.006D
Housing bore finish roughness
Housing bore roundness
2.5μm Ra
1/2 bearing housing dimension tolerance
(3) Allowable temperature range
-25 ∼120˚C
Diagram 3. AC bearing
B-7
● Deep Groove Ball Bearings
B
r
r
φD
φd
Shielded type
(ZZ)
Open type
Non-contact
sealed type
(LLB, LLF)
Low torque
sealed type
(LLH)
Contact
sealed type
(LLU)
d 10 ∼ 20mm
Boundary dimensions
Basic load ratings
Factor
dynamic static dynamic static
Limiting speeds
Bearing numbers
-1
mm
kN
kgf
rNS
d
D
B
rs min1）
min
10
15
19
22
26
30
35
3
5
6
8
9
11
0.1
0.3
0.3
0.3
0.6
0.6
12
18
21
24
28
28
32
37
4
5
6
7
8
10
12
15
21
24
28
32
32
35
42
min
grease
oil
open type open type
ZZ LLB Z LB
LLH
LLU
noncontact
open shielded sealed
type type type
low
torque contact
sealed sealed
type
type
Cr
Cor
Cr
Cor
fo
―
―
0.3
―
0.5
0.5
0.855
1.83
2.7
4.55
5.10
8.20
0.435
0.925
1.27
1.96
2.39
3.50
87
187
275
465
520
835
44
94
129
200
244
355
15.7
14.8
14.0
12.4
13.2
11.4
10 000
32 000
30 000
29 000
25 000
23 000
12 000
38 000
36 000
34 000
30 000
27 000
―
―
―
25 000
21 000
20 000
―
24 000
21 000
21 000
18 000
16 000
6700
6800
6900
6000
6200
6300
―
ZZ
ZZ
ZZ
ZZ
ZZ
―
―
―
LLB ― LLU
LLB ― LLU
LLB LLH LLU
LLB LLH LLU
LLB LLH LLU
0.2
0.3
0.3
0.3
0.3
0.6
1
―
―
0.3
―
―
0.5
0.5
0.930
1.92
2.89
5.10
5.10
6.10
9.70
0.530
1.04
1.46
2.39
2.39
2.75
4.20
95
195
295
520
520
620
990
54
106
149
244
244
280
425
16.2
15.3
14.5
13.2
13.2
12.7
11.1
8 300
29 000
27 000
26 000
26 000
22 000
20 000
9 500
35 000
32 000
30 000
30 000
26 000
24 000
―
―
―
―
21 000
20 000
19 000
―
20 000
19 000
―
18 000
16 000
15 000
6701
6801
6901
16001
6001
6201
6301
―
ZZ
ZZ
―
ZZ
ZZ
ZZ
LLF ―
―
LLB ― LLU
LLB ― LLU
―
―
―
LLB LLH LLU
LLB LLH LLU
LLB LLH LLU
4
5
7
8
9
11
13
0.2
0.3
0.3
0.3
0.3
0.6
1
―
0.940
―
2.08
0.3 3.65
―
5.60
0.3 5.60
0.5 7.75
0.5 11.4
0.585
96
1.26
212
2.00
375
2.83
570
2.83
570
3.60
790
5.45 1 170
59
128
204
289
289
365
555
16.5
15.8
14.8
13.9
13.9
12.7
12.3
6 600
26 000
24 000
22 000
22 000
19 000
17 000
7 600
31 000
28 000
26 000
26 000
23 000
21 000
―
―
―
―
18 000
18 000
15 000
―
17 000
16 000
―
15 000
15 000
12 000
6702
6802
6902
16002
6002
6202
6302
―
ZZ
ZZ
―
ZZ
ZZ
ZZ
LLF ―
―
LLB ― LLU
LLB ― LLU
―
―
―
LLB LLH LLU
LLB LLH LLU
LLB LLH LLU
17
23
26
30
35
35
40
47
62
4
5
7
8
10
12
14
17
0.2
0.3
0.3
0.3
0.3
0.6
1
1.1
―
1.00 0.660 102
67
―
2.23 1.46
227 149
0.3 4.65 2.58
475 263
―
6.80 3.35
695 345
0.3 6.80 3.35
695 345
0.5 9.60 4.60
980 465
0.5 13.5
6.55 1 380 665
― 22.7 10.8 2 320 1 100
16.3
16.1
14.7
13.6
13.6
12.8
12.2
11.1
5 000
24 000
22 000
20 000
20 000
18 000
16 000
14 000
6 700
28 000
26 000
24 000
24 000
21 000
19 000
16 000
―
―
―
―
16 000
15 000
14 000
―
―
15 000
14 000
―
14 000
12 000
11 000
―
6703
6803
6903
16003
6003
6203
6303
6403
―
ZZ
ZZ
―
ZZ
ZZ
ZZ
―
LLF ―
―
LLB ― LLU
LLB ― LLU
―
―
―
LLB LLH LLU
LLB LLH LLU
LLB LLH LLU
―
―
―
20
27
32
37
42
42
47
52
4
7
9
8
12
14
15
0.2
0.3
0.3
0.3
0.6
1
1.1
―
1.04
0.3 4.00
0.3 6.40
―
7.90
0.5 9.40
0.5 12.8
0.5 15.9
16.1
15.5
14.7
14.5
13.9
13.2
12.4
5 000
21 000
19 000
18 000
18 000
16 000
14 000
5 700
25 000
23 000
21 000
21 000
18 000
17 000
―
―
―
―
13 000
12 000
12 000
―
13 000
12 000
―
11 000
10 000
10 000
6704
6804
6904
16004
6004
6204
6304
―
ZZ
ZZ
―
ZZ
ZZ
ZZ
LLF ―
―
LLB ― LLU
LLB ― LLU
―
―
―
LLB LLH LLU
LLB LLH LLU
LLB LLH LLU
0.730 106
2.47
410
3.70
650
4.50
810
5.05
955
6.65 1 310
7.90 1 620
74
252
375
455
515
680
805
1）Smallest allowable dimension for chamfer dimension r.
B-8
● Deep Groove Ball Bearings
CY
a
B
rN
f
b
rNa
r
ro
ro
r
φD φD1
Dynamic equivalent radial load
Pr＝XFr＋YFa
Fa
Fa
fo・Fa
≦e
Fr
Fr ＞e
e
Cor
X Y X
Y
0.172 0.19
2.30
0.345 0.22
1.99
0.689 0.26
1.71
1.03 0.28
1.55
0 0.56 1.45
1.38 0.30 1
2.07 0.34
1.31
3.45 0.38
1.15
5.17 0.42
1.04
6.89 0.44
1.00
CZ
ra
φd
With snap ring groove
Bearing
numbers
φda
Static equivalent radial load
Por＝0.6Fr＋0.5Fa
When Por＜Fr use Por＝Fr
With snap ring
Snap ring groove
dimensions
mm
snap2） snap2）
ring
ring
D1
groove
max
φDXφDa
φD2
Snap ring
dimensions
mm
Mass4）
Abutment and fillet dimensions
mm
a
b
ro
D2
f
max
min
max
max
max
min
da
max3）
kg
Da
DX
CY
CZ
ras
r Nas
max
(approx.)
max
min
max
max
(approx.)
―
―
N
―5）
N
N
―
―
NR
―5）
NR
NR
―
―
20.8
―
28.17
33.17
―
―
―
―
1.05 0.8
―
―
2.06 1.35
2.06 1.35
―
―
0.2
―
0.4
0.4
―
―
24.8
―
34.7
39.7
―
―
0.7
―
1.12
1.12
10.8
12
12
12
14
14
―
12.5
13
13.5
16
17
14.2
17
20
24
26
31
―
―
25.5
―
35.5
40.5
―
―
1.5
―
2.9
2.9
―
―
0.7
―
1.2
1.2
0.1
0.3
0.3
0.3
0.6
0.6
―
―
0.3
―
0.5
0.5
0.0015
0.005
0.009
0.019
0.032
0.053
―
―
N
―
―5）
N
N
―
―
NR
―
―5）
NR
NR
―
―
22.8
―
―
30.15
34.77
―
―
1.05
―
―
2.06
2.06
―
―
0.2
―
―
0.4
0.4
―
―
26.8
―
―
36.7
41.3
―
―
0.7
―
―
1.12
1.12
13.6
14
14
14
14
16
17
13.8
14.5
15
―
16
17
18.5
16.4
19
22
26
26
28
32
―
―
27.5
―
―
37.5
42
―
―
1.5
―
―
2.9
2.9
―
―
0.7
―
―
1.2
1.2
0.2
0.3
0.3
0.3
0.3
0.6
1
―
―
0.3
―
―
0.5
0.5
0.002
0.006
0.011
0.019
0.021
0.037
0.06
―
―
N
―
N
N
N
―
―
NR
―
NR
NR
NR
―
―
26.7
―
30.15
33.17
39.75
―
―
―
―
1.3
0.95
―
―
2.06 1.35
2.06 1.35
2.06 1.35
―
―
0.25
―
0.4
0.4
0.4
―
―
30.8
―
36.7
39.7
46.3
―
―
0.85
―
1.12
1.12
1.12
16.6
17
17
17
17
19
20
16.8
17.5
17.5
―
19
20
23
19.4
22
26
30
30
31
37
―
―
31.5
―
37.5
40.5
47
―
―
1.9
―
2.9
2.9
2.9
―
―
0.9
―
1.2
1.2
1.2
0.2
0.3
0.3
0.3
0.3
0.6
1
―
―
0.3
―
0.3
0.5
0.5
0.0025
0.007
0.016
0.025
0.03
0.045
0.082
―
―
N
―
N
N
N
―
―
―
NR
―
NR
NR
NR
―
―
―
28.7
―
33.17
38.1
44.6
―
―
―
1.3
―
2.06
2.06
2.46
―
―
―
0.95
―
1.35
1.35
1.35
―
―
―
0.25
―
0.4
0.4
0.4
―
―
―
32.8
―
39.7
44.6
52.7
―
―
―
0.85
―
1.12
1.12
1.12
―
18.6
19
19
19
19
21
22
23.5
18.8
19.5
20
―
21
23
25
―
21.4
24
28
33
33
36
42
55.5
―
―
33.5
―
40.5
45.5
53.5
―
―
―
1.9
―
2.9
2.9
3.3
―
―
―
0.9
―
1.2
1.2
1.2
―
0.2
0.3
0.3
0.3
0.3
0.6
1
1
―
―
0.3
―
0.3
0.5
0.5
―
0.0025
0.008
0.018
0.032
0.039
0.066
0.115
0.27
―
N
N
―
N
N
N
―
NR
NR
―
NR
NR
NR
―
30.7
35.7
―
39.75
44.6
49.73
―
―
1.3
0.95
1.7
0.95
―
―
2.06 1.35
2.46 1.35
2.46 1.35
―
0.25
0.25
―
0.4
0.4
0.4
―
34.8
39.8
―
46.3
52.7
57.9
―
0.85
0.85
―
1.12
1.12
1.12
21.6
22
22
22
24
25
26.5
22.3
22.5
24
―
26
28
28.5
25.4
30
35
40
38
42
45.5
―
35.5
40.5
―
47
53.5
58.5
―
1.9
2.3
―
2.9
3.3
3.3
―
0.9
0.9
―
1.2
1.2
1.2
0.2
0.3
0.3
0.3
0.6
1
1
―
0.3
0.3
―
0.5
0.5
0.5
0.0045
0.019
0.036
0.051
0.069
0.106
0.144
―
―
0.8
―
―
1.35
1.35
2）Sealed and shielded bearings are also available. 3）This dimension applies to sealed and shielded bearings. 4）Does not include bearings with snap rings. 5）See page B-40.
B-9
● Deep Groove Ball Bearings
B
r
r
φD
φd
Shielded type
(ZZ)
Open type
Non-contact
sealed type
(LLB, LLF)
Low torque
sealed type
(LLH)
Contact
sealed type
(LLU)
d 20 ∼ 35mm
Boundary dimensions
Basic load ratings
Factor
dynamic static dynamic static
Limiting speeds
Bearing numbers
-1
mm
kN
kgf
rNS
d
D
B
rs min1）
min
Cr
Cor
20
72
19
1.1
―
28.5
13.9
22
44
50
56
12
14
16
0.6
1
1.1
0.5 9.40
0.5 12.9
0.5 18.4
25
32
37
42
47
47
52
62
80
4
7
9
8
12
15
17
21
0.2
0.3
0.3
0.3
0.6
1
1.1
1.5
―
0.3
0.3
―
0.5
0.5
0.5
―
28
52
58
68
12
16
18
0.6
1
1.1
0.5 12.5
0.5 17.9
0.5 26.7
30
37
42
47
55
55
62
72
90
4
7
9
9
13
16
19
23
0.2
0.3
0.3
0.3
1
1
1.1
1.5
―
0.3
0.3
―
0.5
0.5
0.5
―
32
58
65
75
13
17
20
1
1
1.1
35
47
55
62
62
72
80
100
7
10
9
14
17
21
25
0.3
0.6
0.3
1
1.1
1.5
1.5
Cr
Cor
―
LLU
―
noncontact
open shielded sealed
type type type
―
―
―
―
12 000
14 000
515
690
945
13.9
13.5
12.4
17 000
14 000
13 000
20 000
17 000
15 000
13 000 10 000
12 000
9 700
11 000
9 200
112
86
435 300
715 460
855 520
1 030 595
1 430 800
2 160 1 110
3 550 1 780
15.8
16.1
15.4
15.1
14.5
13.9
12.6
11.6
4 000
18 000
16 000
15 000
15 000
13 000
12 000
10 000
4 600
21 000
19 000
18 000
18 000
15 000
14 000
12 000
―
―
―
―
11 000
11 000
9 700
―
―
10 000
9 800
―
9 400
8 900
8 100
―
6705
6805
6905
16005
6005
6205
6305
6405
―
ZZ
ZZ
―
ZZ
ZZ
ZZ
―
LLF ―
―
LLB ― LLU
LLB ― LLU
―
―
―
LLB LLH LLU
LLB LLH LLU
LLB LLH LLU
―
―
―
7.40 1 270 755
9.75 1 830 995
14.0 2 730 1 430
14.5
13.4
12.4
14 000
12 000
11 000
16 000
14 000
13 000
10 000
9 700
8 900
8 400
8 100
7 400
60/28
62/28
63/28
ZZ
ZZ
ZZ
LLB LLH LLU
LLB LLH LLU
LLB LLH LLU
117
97
480 370
740 510
1 150 750
1 350 845
1 980 1 150
2 720 1 530
4 400 2 440
15.7
16.5
15.8
15.2
14.8
13.8
13.3
12.3
3 300
15 000
14 000
13 000
13 000
11 000
10 000
8 800
3 800
18 000
17 000
15 000
15 000
13 000
12 000
10 000
―
―
―
―
9 200
8 800
7 900
―
―
8.800
8 400
―
7 700
7 300
6 600
―
6706
6806
6906
16006
6006
6206
6306
6406
―
ZZ
ZZ
―
ZZ
ZZ
ZZ
―
LLF ―
―
LLB ― LLU
LLB ― LLU
―
―
―
LLB LLH LLU
LLB LLH LLU
LLB LLH LLU
―
―
―
0.5 11.8
0.5 20.7
0.5 29.8
8.05 1 200 820
11.6 2 110 1 190
16.9 3 050 1 730
15.4
13.6
13.1
12 000
11 000
9 500
15 000
12 000
11 000
8 700
8 400
7 700
7 200
7 100
6 500
60/32
62/32
63/32
ZZ
ZZ
ZZ
LLB LLH LLU
LLB LLH LLU
LLB LLH LLU
0.3
0.5
―
0.5
0.5
0.5
―
4.05
6.85
8.20
10.3
15.3
19.1
31.0
16.4
15.8
15.6
14.8
13.8
13.1
12.3
13 000
12 000
12 000
12 000
9 800
8 800
7 800
16 000
15 000
14 000
14 000
11 000
10 000
9 100
―
―
―
8 200
7 600
7 300
―
7 600
7 100
―
6 800
6 300
6 000
―
6807
6907
16007
6007
6207
6307
6407
ZZ
ZZ
―
ZZ
ZZ
ZZ
―
LLB ― LLU
LLB ― LLU
―
―
―
LLB LLH LLU
LLB LLH LLU
LLB LLH LLU
―
―
―
5.05
955
6.80 1 320
9.25 1 880
1.10 0.840
4.30 2.95
7.05 4.55
8.35 5.10
10.1
5.85
14.0
7.85
21.2 10.9
34.5 17.5
1.14 0.950
4.70 3.65
7.25 5.00
11.2
7.35
13.2
8.3
19.5 11.3
26.7 15.0
43.5 23.9
500
975
1 190
1 630
2 620
3 400
5 600
410
695
835
1 050
1 560
1 950
3 150
1）Smallest allowable dimension for chamfer dimension r.
B-10
6404
low
torque contact
sealed sealed
type
type
11.4
4.90
9.55
11.7
16.0
25.7
33.5
55.0
2 900 1 420
fo
min
grease
oil
open type open type
ZZ LLB Z LB
LLH
60/22ZZ LLB LLH LLU
62/22 ZZ LLB LLH LLU
63/22 ZZ LLB LLH LLU
● Deep Groove Ball Bearings
CY
a
B
rN
f
Dynamic equivalent radial load
Pr＝XFr＋YFa
Fa
Fa
fo・Fa
≦e
Fr
Fr ＞e
e
Cor
X Y X
Y
0.172 0.19
2.30
0.345 0.22
1.99
0.689 0.26
1.71
1.03 0.28
1.55
0 0.56 1.45
1.38 0.30 1
2.07 0.34
1.31
3.45 0.38
1.15
5.17 0.42
1.04
6.89 0.44
1.00
CZ
b
rNa
r
ro
ro
r
φD φD1
ra
φd
With snap ring groove
Bearing
numbers
―
―
―
N
N
N
NR
NR
NR
41.75
47.6
53.6
―
N
N
―
N
N
N
―
―
NR
NR
―
NR
NR
NR
―
―
35.7
40.7
―
44.6
49.73
59.61
―
N
N
N
NR
NR
NR
49.73
55.6
64.82
―
N
N
―
N
N
N
―
―
NR
NR
―
NR
NR
NR
―
―
40.7
45.7
―
52.6
59.61
68.81
―
N
N
N
NR
NR
NR
55.6
62.6
71.83
N
N
―
N
N
N
NR
NR
―
NR
NR
NR
―
45.7
53.7
―
59.61
68.81
76.81
―
φda
Static equivalent radial load
Por＝0.6Fr＋0.5Fa
When Por＜Fr use Por＝Fr
With snap ring
Snap ring groove
dimensions
mm
snap2） snap2）
ring
ring
D1
groove
max
φDXφDa
φD2
Snap ring
dimensions
mm
a
b
ro
D2
f
max
min
max
max
max
―
2.06
2.46
2.46
―
1.35
1.35
1.35
―
―
1.3
0.95
1.7
0.95
―
―
2.06 1.35
2.46 1.35
3.28 1.9
―
―
2.06
2.46
3.28
1.35
1.35
1.9
―
―
1.3
0.95
1.7
0.95
―
―
2.08 1.35
3.28 1.9
3.28 1.9
―
―
2.08
3.28
3.28
1.35
1.9
1.9
1.3
0.95
1.7
0.95
―
―
2.08 1.9
3.28 1.9
3.28 1.9
―
―
―
―
―
Mass4）
Abutment and fillet dimensions
mm
da
min
max3）
kg
Da
DX
CY
CZ
ras
r Nas
max
(approx.)
max
min
max
max
26.5
―
65.5
―
―
―
1
―
(approx.)
0.4
0.4
0.4
0.4
48.3
55.7
61.7
1.12
1.12
1.12
26
27
28.5
26.5
29.5
31
40
45
49.5
49
56.5
62.5
2.9
3.3
3.3
1.2
1.2
1.2
0.6
1
1
0.5
0.5
0.5
0.074
0.117
0.176
―
0.25
0.25
―
0.4
0.4
0.6
―
―
39.8
44.8
―
52.7
57.9
67.7
―
―
0.85
0.85
―
1.12
1.12
1.7
―
26.6
27
27
27
29
30
31.5
33
27.3
28
29
―
30.5
32
35
―
30.4
35
40
45.0
43
47
55.5
72
―
40.5
45.5
―
53.5
58.5
68.5
―
―
1.9
2.3
―
2.9
3.3
4.6
―
―
0.9
0.9
―
1.2
1.2
1.7
―
0.2
0.3
0.3
0.3
0.6
1
1
1.5
―
0.3
0.3
―
0.5
0.5
0.5
―
0.005
0.022
0.042
0.06
0.08
0.128
0.232
0.53
0.4
0.4
0.6
57.9
63.7
74.6
1.12
1.12
1.7
32
33
34.5
34
35.5
38.5
48
53
61.5
58.5
64.5
76
2.9
3.3
4.6
1.2
1.2
1.7
0.6
1
1
0.5
0.5
0.5
0.098
0.171
0.284
―
0.25
0.25
―
0.4
0.6
0.6
―
―
44.8
49.8
―
60.7
67.7
78.6
―
―
0.85
0.85
―
1.12
1.7
1.7
―
31.6
32
32
32
35
35
36.5
38
32.3
33
34
―
37
39
43
―
35.4
40
45
53
50
57
65.5
82
―
45.5
50.5
―
61.5
68.5
80
―
―
1.9
2.3
―
2.9
4.6
4.6
―
―
0.9
0.9
―
1.2
1.7
1.7
―
0.2
0.3
0.3
0.3
1
1
1
1.5
―
0.3
0.3
―
0.5
0.5
0.5
―
0.006
0.026
0.048
0.091
0.116
0.199
0.36
0.735
0.4
0.6
0.6
63.7
70.7
81.6
1.12
1.7
1.7
37
37
38.5
39
40
43.5
53
60
68.5
64.5
71.5
83
2.9
4.6
4.6
1.2
1.7
1.7
0.5
0.5
0.5
0.129
0.226
0.382
0.25
0.25
―
0.6
0.6
0.6
―
49.8
57.8
―
67.7
78.6
86.6
―
0.85
0.85
―
1.7
1.7
1.7
―
37
39
37
40
41.5
43
43
38
40
―
42
45
47
―
45
51
60
57
65.5
72
92
50.5
58.5
―
68.5
80
88
―
1.9
2.3
―
3.4
4.6
4.6
―
0.9
0.9
―
1.7
1.7
1.7
―
0.3
0.5
―
0.5
0.5
0.5
―
0.029
0.074
0.11
0.155
0.288
0.457
0.952
1
1
1
0.3
0.6
0.3
1
1
1.5
1.5
2）Sealed and shielded bearings are also available. 3）This dimension applies to sealed and shielded bearings. 4）Does not include bearings with snap rings.
B-11
● Deep Groove Ball Bearings
B
r
r
φD
φd
Shielded type
(ZZ)
Open type
Non-contact
sealed type
(LLB, LLF)
Low torque
sealed type
(LLH)
Contact
sealed type
(LLU)
d 40 ∼ 60mm
Boundary dimensions
Basic load ratings
Factor
dynamic static dynamic static
Limiting speeds
Bearing numbers
-1
mm
kN
kgf
rNS
d
D
B
rs min1）
min
40
52
62
68
68
80
90
110
7
12
9
15
18
23
27
0.3
0.6
0.3
1
1.1
1.5
2
0.3
0.5
―
0.5
0.5
0.5
―
45
58
68
75
75
85
100
120
7
12
10
16
19
25
29
0.3
0.6
0.6
1
1.1
1.5
2
50
65
72
80
80
90
110
130
7
12
10
16
20
27
31
55
72
80
90
90
100
120
140
60
78
85
95
95
110
130
150
Cr
fo
LLU
noncontact
open shielded sealed
type type type
low
torque contact
sealed sealed
type
type
Cor
Cr
5.10
12.2
12.6
16.8
29.1
40.5
63.5
4.40
8.90
9.65
11.5
17.8
24.0
36.5
520
1 240
1 290
1 710
2 970
4 150
6 500
445
910
985
1 170
1 820
2 450
3 750
16.3
15.8
16.0
15.2
14.0
13.2
12.3
12 000
11 000
10 000
10 000
8 700
7 800
7 000
14 000
13 000
12 000
12 000
10 000
9 200
8 200
―
―
―
7 300
6 700
6 400
―
6 700
6 300
―
6 100
5 600
5 300
―
6808
6908
16008
6008
6208
6308
6408
ZZ
ZZ
―
ZZ
ZZ
ZZ
―
LLB ― LLU
LLB ― LLU
―
―
―
LLB LLH LLU
LLB LLH LLU
LLB LLH LLU
―
―
―
0.3
0.5
―
0.5
0.5
0.5
―
5.35
13.1
12.9
21.0
32.5
53.0
77.0
4.95
10.4
10.5
15.1
20.4
32.0
45.0
550
1 330
1 320
2 140
3 350
5 400
7 850
500
1 060
1 070
1 540
2 080
3 250
4 600
16.1
16.1
16.2
15.3
14.1
13.1
12.1
11 000
9 800
9 200
9 200
7 800
7 000
6 300
12 000
12 000
11 000
11 000
9 200
8 200
7 400
―
―
―
6 500
6 200
5 600
―
5 900
5 600
―
5 400
5 200
4 700
―
6809
6909
16009
6009
6209
6309
6409
ZZ
ZZ
―
ZZ
ZZ
ZZ
―
LLB ― LLU
LLB ― LLU
―
―
―
LLB LLH LLU
LLB LLH LLU
LLB LLH LLU
―
―
―
0.3
0.6
0.6
1
1.1
2
2.1
0.3
0.5
―
0.5
0.5
0.5
―
6.60
13.4
13.2
21.8
35.0
62.0
83.0
6.10
11.2
11.3
16.6
23.2
38.5
49.5
670
1 370
1 350
2 230
3 600
6 300
8 450
620
1 140
1 150
1 690
2 370
3 900
5 050
16.1
16.3
16.4
15.5
14.4
13.2
12.5
9 600
8 900
8 400
8 400
7 100
6 400
5 700
11 000
11 000
9 800
9 800
8 300
7 500
6 700
―
―
―
6 000
5 700
5 000
―
5 300
5 100
―
5 000
4 700
4 200
―
6810
6910
16010
6010
6210
6310
6410
ZZ
ZZ
―
ZZ
ZZ
ZZ
―
LLB ― LLU
LLB ― LLU
―
―
―
LLB LLH LLU
LLB LLH LLU
LLB LLH LLU
―
―
―
9
13
11
18
21
29
33
0.3
1
0.6
1.1
1.5
2
2.1
0.3
0.5
―
0.5
0.5
0.5
―
8.80
16.0
18.6
28.3
43.5
71.5
89.0
8.10
13.3
15.3
21.2
29.2
45.0
54.0
900
1 630
1 900
2 880
4 450
7 300
9 050
825
1 350
1 560
2 170
2 980
4 600
5 500
16.2
16.2
16.2
15.3
14.3
13.2
12.7
8 700
8 200
7 700
7 700
6 400
5 800
5 200
10 000
9 600
9 000
9 000
7 600
6 800
6 100
―
―
―
―
―
―
―
4 800
4 600
―
4 500
4 300
3 900
―
6811
6911
16011
6011
6211
6311
6411
ZZ
ZZ
―
ZZ
ZZ
ZZ
―
LLB
LLB
―
LLB
LLB
LLB
―
―
―
―
―
―
―
―
LLU
LLU
―
LLU
LLU
LLU
―
10
13
11
18
22
31
35
0.3
1
0.6
1.1
1.5
2.1
2.1
0.3
0.5
―
0.5
0.5
0.5
―
10.6 1 170
14.3 1 670
17.5 2 040
23.2 3 000
36.0 5 350
52.0 8 350
64.5 10 400
1 080
1 450
1 780
2 370
3 700
5 300
6 550
16.3
16.4
16.3
15.6
14.3
13.2
12.6
8 000
7 600
7 000
7 000
6 000
5 400
4 800
9 400
8 900
8 300
8 300
7 000
6 300
5 700
―
―
―
―
―
―
―
4 400
4 300
―
4 100
3 800
3 600
―
6812
6912
16012
6012
6212
6312
6412
ZZ
ZZ
―
ZZ
ZZ
ZZ
―
LLB
LLB
―
LLB
LLB
LLB
―
―
―
―
―
―
―
―
LLU
LLU
―
LLU
LLU
LLU
―
11.5
16.4
20.0
29.5
52.5
82.0
102
Cor
min
grease
oil
open type open type
ZZ LLB Z LB
LLH
1）Smallest allowable dimension for chamfer dimension r.
B-12
● Deep Groove Ball Bearings
CY
a
B
rN
f
b
rNa
r
ro
ro
r
φD φD1
Dynamic equivalent radial load
Pr＝XFr＋YFa
Fa
Fa
fo・Fa
≦e
Fr
Fr ＞e
e
Cor
X Y X
Y
0.172 0.19
2.30
0.345 0.22
1.99
0.689 0.26
1.71
1.03 0.28
1.55
0 0.56 1.45
1.38 0.30 1
2.07 0.34
1.31
3.45 0.38
1.15
5.17 0.42
1.04
6.89 0.44
1.00
CZ
ra
φd
With snap ring groove
Bearing
numbers
φda
Static equivalent radial load
Por＝0.6Fr＋0.5Fa
When Por＜Fr use Por＝Fr
With snap ring
Snap ring groove
dimensions
mm
snap2） snap2）
ring
ring
D1
groove
max
φDXφDa
φD2
Snap ring
dimensions
mm
Mass4）
Abutment and fillet dimensions
mm
a
b
ro
D2
f
max
min
max
max
max
min
da
max3）
kg
Da
DX
CY
CZ
ras
r Nas
max
(approx.)
max
min
max
max
50
58
66
63
73.5
82
101
(approx.)
N
N
―
N
N
N
―
NR
NR
―
NR
NR
NR
―
50.7
60.7
―
64.82
76.81
86.79
―
1.3
0.95
1.7
0.95
―
―
2.49 1.9
3.28 1.9
3.28 2.7
―
―
0.25
0.25
―
0.6
0.6
0.6
―
54.8
64.8
―
74.6
86.6
96.5
―
0.85
0.85
―
1.7
1.7
2.46
―
42
44
42
45
46.5
48
49
43
45
―
47
51
54
―
55.5
65.5
―
76
88
98
―
1.9
2.3
―
3.8
4.6
5.4
―
0.9
0.9
―
1.7
1.7
2.5
―
0.3
0.6
0.3
1
1
1.5
2.0
0.3
0.5
―
0.5
0.5
0.5
―
0.033
0.11
0.125
0.19
0.366
0.63
1.23
N
N
―
N
N
N
―
NR
NR
―
NR
NR
NR
―
56.7
66.7
―
71.83
81.81
96.8
―
1.3
0.95
1.7
0.95
―
―
2.49 1.9
3.28 1.9
3.28 2.7
―
―
0.25
0.25
―
0.6
0.6
0.6
―
60.8
70.8
―
81.6
91.6
106.5
―
0.85
0.85
―
1.7
1.7
2.46
―
47
49
49
50
51.5
53
54
48
56
61.5
51
64
72
―
71
―
52.5 70
83
55.5 78.5 93
61.5 92
108
―
111
―
1.9
2.3
―
3.8
4.6
5.4
―
0.9
0.9
―
1.7
1.7
2.5
―
0.3
0.6
0.6
1
1
1.5
2
0.3
0.5
―
0.5
0.5
0.5
―
0.04
0.128
0.171
0.237
0.398
0.814
1.53
N
N
―
N
N
N
―
NR 63.7
NR 70.7
―
―
NR 76.81
NR 86.79
NR 106.81
―
―
1.3
0.95
1.7
0.95
―
―
2.49 1.9
3.28 2.7
3.28 2.7
―
―
0.25
0.25
―
0.6
0.6
0.6
―
67.8
74.8
―
86.6
96.5
116.6
―
0.85
0.85
―
1.7
2.46
2.46
―
52
54
54
55
56.5
59
61
54
63
68.5
55.5 68
76
―
76
―
57.5 75
88
60
83.5 98
68.5 101
118
―
119
―
1.9
2.3
―
3.8
5.4
5.4
―
0.9
0.9
―
1.7
2.5
2.5
―
0.3
0.6
0.6
1
1
2
2
0.3
0.5
―
0.5
0.5
0.5
―
0.052
0.132
0.18
0.261
0.454
1.07
1.88
N
N
―
N
N
N
―
NR 70.7
NR 77.9
―
―
NR 86.79
NR 96.8
NR 115.21
―
―
1.7
0.95
2.1
1.3
―
―
2.87 2.7
3.28 2.7
4.06 3.1
―
―
0.25
0.4
―
0.6
0.6
0.6
―
74.8
84.4
―
96.5
106.5
129.7
―
0.85
1.12
―
2.46
2.46
2.82
―
57
60
59
61.5
63
64
66
59
70
76
61.5 75
86
―
86
―
64
83.5 98
67
92
108
74
111
131.5
―
129
―
2.3
2.9
―
5
5.4
6.5
―
0.9
1.2
―
2.5
2.5
2.9
―
0.3
1
0.6
1
1.5
2
2
0.3
0.5
―
0.5
0.5
0.5
―
0.083
0.18
0.258
0.388
0.601
1.37
2.29
N
N
―
N
N
N
―
NR 76.2
NR 82.9
―
―
NR 91.82
NR 106.81
NR 125.22
―
―
1.7
1.3
2.1
1.3
―
―
2.87 2.7
3.28 2.7
4.06 3.1
―
―
0.4
0.4
―
0.6
0.6
0.6
―
82.7
89.4
―
101.6
116.6
139.7
―
1.12
1.12
―
2.46
2.46
2.82
―
62
65
64
66.5
68
71
71
64.5 76
84
66.5 80
91
―
91
―
69
88.5 103
75
102
118
80.5 119
141.5
―
139
―
2.5
2.9
―
5
5.4
6.5
―
1.2
1.2
―
2.5
2.5
2.9
―
0.3
1
0.6
1
1.5
2
2
0.3
0.5
―
0.5
0.5
0.5
―
0.106
0.193
0.283
0.414
0.783
1.73
2.77
2）Sealed and shielded bearings are also available. 3）This dimension applies to sealed and shielded bearings. 4）Does not include bearings with snap rings.
B-13
● Deep Groove Ball Bearings
B
r
r
φD
φd
Open type
Shielded type
(ZZ)
Non-contact
sealed type
(LLB)
Contact
sealed type
（LLU）
d 65 ∼ 85mm
Boundary dimensions
Basic load ratings
dynamic static dynamic
Factor
Limiting speeds
-1
mm
kN
kgf
rNS
rs min1）
Cr
fo
LLU
B
65
85
90
100
100
120
140
160
10
13
11
18
23
33
37
0.6
1
0.6
1.1
1.5
2.1
2.1
0.5
0.5
―
0.5
0.5
0.5
―
11.6
17.4
20.5
30.5
57.5
92.5
111
11.0 1 180
16.1 1 770
18.7 2 090
25.2 3 100
40.0 5 850
60.0 9 450
72.5 11 300
1 120
1 640
1 910
2 570
4 100
6 100
7 400
16.2
16.6
16.5
15.8
14.4
13.2
12.7
7 400
7 000
6 500
6 500
5 500
4 900
4 400
8 700
8 200
7 700
7 700
6 500
5 800
5 200
4 100
4 000
―
3 900
3 600
3 300
―
6813
6913
16013
6013
6213
6313
6413
ZZ
ZZ
―
ZZ
ZZ
ZZ
―
LLB
LLB
―
LLB
LLB
LLB
―
LLU
LLU
―
LLU
LLU
LLU
―
70
90
100
110
110
125
150
180
10
16
13
20
24
35
42
0.6
1
0.6
1.1
1.5
2.1
3
0.5
0.5
―
0.5
0.5
0.5
―
12.1
23.7
24.4
38.0
62.0
104
128
11.9 1 230
21.2 2 420
22.6 2 480
31.0 3 900
44.0 6 350
68.0 10 600
89.5 13 100
1 220
2 160
2 300
3 150
4 500
6 950
9 100
16.1
16.3
16.5
15.6
14.5
13.2
12.7
6 900
6 500
6 100
6 100
5 100
4 600
4 100
8 100
7 700
7 100
7 100
6 000
5 400
4 800
3 800
3 700
―
3 600
3 400
3 100
―
6814
6914
16014
6014
6214
6314
6414
ZZ
ZZ
―
ZZ
ZZ
ZZ
―
LLB
LLB
―
LLB
LLB
LLB
―
LLU
LLU
―
LLU
LLU
LLU
―
75
95
105
115
115
130
160
190
10
16
13
20
25
37
45
0.6
1
0.6
1.1
1.5
2.1
3
0.5
0.5
―
0.5
0.5
0.5
―
12.5
24.4
25.0
39.5
66.0
113
138
12.9 1 280
22.6 2 480
24.0 2 540
33.5 4 050
49.5 6 750
77.0 11 600
99.0 14 000
1 310
2 300
2 450
3 400
5 050
7 850
10 100
16.0
16.5
16.6
15.8
14.7
13.2
12.7
6 400
6 100
5 700
5 700
4 800
4 300
3 800
7 600
7 200
6 700
6 700
5 600
5 000
4 500
3 600
3 500
―
3 300
3 200
2 900
―
6815
6915
16015
6015
6215
6315
6415
ZZ
ZZ
―
ZZ
ZZ
ZZ
―
LLB
LLB
―
LLB
LLB
LLB
―
LLU
LLU
―
LLU
LLU
LLU
―
80
100
110
125
125
140
170
200
10
16
14
22
26
39
48
0.6
1
0.6
1.1
2
2.1
3
0.5
0.5
―
0.5
0.5
0.5
―
12.7 13.3 1 290
24.9 24.0 2 540
25.4 25.1 2 590
47.5 40.0 4 850
72.5 53.0 7 400
123
86.5 12 500
164
125
16 700
1 360
2 450
2 560
4 050
5 400
8 850
12 800
16.0
16.6
16.4
15.6
14.6
13.3
12.3
6 000
5 700
5 300
5 300
4 500
4 000
3 600
7 100
6 700
6 200
6 200
5 300
4 700
4 200
3 400
3 200
―
3 100
3 000
2 700
―
6816
6916
16016
6016
6216
6316
6416
ZZ
ZZ
―
ZZ
ZZ
ZZ
―
LLB
LLB
―
LLB
LLB
LLB
―
LLU
LLU
―
LLU
LLU
LLU
―
110
120
130
130
150
180
13
18
14
22
28
41
1
1.1
0.6
1.1
2
3
0.5
0.5
―
0.5
0.5
0.5
18.7
32.0
25.9
49.5
83.5
133
1 940
3 000
2 670
4 400
6 500
9 850
16.2
16.4
16.4
15.8
14.7
13.3
5 700
5 400
5 000
5 000
4 200
3 800
6 700
6 300
5 900
5 900
5 000
4 500
3 100
3 000
―
2 900
2 800
2 600
6817
6917
16017
6017
6217
6317
ZZ
ZZ
―
ZZ
ZZ
ZZ
LLB
LLB
―
LLB
LLB
LLB
LLU
LLU
―
LLU
LLU
LLU
19.0 1 910
29.6 3 250
26.2 2 640
43.0 5 050
64.0 8 500
97.0 13 500
Cor
nonlowcontact torque contact
open shielded sealed sealed
type
type
type
type
D
85
Cor
min
grease
oil
open type open type
ZZ LLB Z LB
d
min
Cr
Bearing numbers
static
1）Smallest allowable dimension for chamfer dimension r.
B-14
● Deep Groove Ball Bearings
CY
a
B
rN
f
b
rNa
r
ro
ro
r
φD φD1
Dynamic equivalent radial load
Pr＝XFr＋YFa
Fa
Fa
fo・Fa
≦e
Fr
Fr ＞e
e
Cor
X Y X
Y
0.172 0.19
2.30
0.345 0.22
1.99
0.689 0.26
1.71
1.03 0.28
1.55
0 0.56 1.45
1.38 0.30 1
2.07 0.34
1.31
3.45 0.38
1.15
5.17 0.42
1.04
6.89 0.44
1.00
CZ
ra
φd
With snap ring groove
Bearing
numbers
φda
Static equivalent radial load
Por＝0.6Fr＋0.5Fa
When Por＜Fr use Por＝Fr
With snap ring
Snap ring groove
dimensions
mm
snap2） snap2）
ring
ring
D1
groove
max
φDXφDa
φD2
Snap ring
dimensions
mm
a
b
ro
D2
f
max
min
max
max
max
Mass4）
Abutment and fillet dimensions
mm
da
min
max3）
kg
Da
DX
CY
CZ
ras
r Nas
max
(approx.)
max
min
max
max
(approx.)
N
N
―
N
N
N
―
NR 82.9
1.7
1.3
NR 87.9
2.1
1.3
―
―
―
―
NR 96.8
2.87 2.7
NR 115.21 4.06 3.1
NR 135.23 4.9
3.1
―
―
―
―
0.4
0.4
―
0.6
0.6
0.6
―
89.4
94.4
―
106.5
129.7
149.7
―
1.12
1.12
―
2.46
2.82
2.82
―
69
70
69
71.5
73
76
76
70
81
91
71.5 85
96
―
96
―
74
93.5 108
80.5 112 131.5
86 129 152
― 149
―
2.5
2.9
―
5
6.5
7.3
―
1.2
1.2
―
2.5
2.9
2.9
―
0.6
1
0.6
1
1.5
2
2
0.5
0.5
―
0.5
0.5
0.5
―
0.128
0.206
0.307
0.421
0.99
2.08
3.3
N
N
―
N
N
N
―
NR 87.9
1.7
1.3
NR 97.9
2.5
1.3
―
―
―
―
NR 106.81 2.87 2.7
NR 120.22 4.06 3.1
NR 145.24 4.9
3.1
―
―
―
―
0.4
0.4
―
0.6
0.6
0.6
―
94.4
104.4
―
116.6
134.7
159.7
―
1.12
1.12
―
2.46
2.82
2.82
―
74
75
74
76.5
78
81
83
75.5
77.5
―
80.5
85
92.5
―
86
95
106
103.5
117
139
167
96
106
―
118
136.5
162
―
2.5
3.3
―
5
6.5
7.3
―
1.2
1.2
―
2.5
2.9
2.9
―
0.6
1
0.6
1
1.5
2
2.5
0.5
0.5
―
0.5
0.5
0.5
―
0.137
0.334
0.441
0.604
1.07
2.52
4.83
N
N
―
N
N
N
―
NR
NR
―
NR
NR
NR
―
92.9
1.7
1.3
102.6
2.5
1.3
―
―
―
111.81 2.87 2.7
125.22 4.06 3.1
155.22 4.9
3.1
―
―
―
0.4
0.4
―
0.6
0.6
0.6
―
99.4
110.7
―
121.6
139.7
169.7
―
1.12
1.12
―
2.46
2.82
2.82
―
79
80
79
81.5
83
86
88
80
82.5
―
85.5
90.5
99
―
91
100
111
108.5
122
149
177
101
112
―
123
141.5
172
―
2.5
3.3
―
5
6.5
7.3
―
1.2
1.2
―
2.5
2.9
2.9
―
0.6
1
0.6
1
1.5
2
2.5
0.5
0.5
―
0.5
0.5
0.5
―
0.145
0.353
0.464
0.649
1.18
3.02
5.72
N
N
―
N
N
N
―
NR
NR
―
NR
NR
NR
―
97.9
1.7
1.3
107.6
2.5
1.3
―
―
―
120.22 2.87 3.1
135.23 4.9
3.1
163.65 5.69 3.5
―
―
―
0.4
0.4
―
0.6
0.6
0.6
―
104.4
115.7
―
134.7
149.7
182.9
―
1.12
1.12
―
2.82
2.82
3.1
―
84
85
85
88
84
―
86.5 91.5
89
95.5
91 105
93
―
96
105
121
118.5
131
159
187
106
117
―
136.5
152
185
―
2.5
3.3
―
5.3
7.3
8.4
―
1.2
1.2
―
2.9
2.9
3.1
―
0.6
1
0.6
1
2
2
2.5
0.5
0.5
―
0.5
0.5
0.5
―
0.154
0.373
0.597
0.854
1.4
3.59
6.76
N
N
―
N
N
N
NR
NR
―
NR
NR
NR
107.6
2.1
1.3
117.6
3.3
1.3
―
―
―
125.22 2.87 3.1
145.24 4.9
3.1
173.66 5.69 3.5
0.4
0.4
―
0.6
0.6
0.6
115.7
125.7
―
139.7
159.7
192.9
1.12
1.12
―
2.82
2.82
3.1
90
91
91.5 94
89
―
91.5 97
94 103
98 112
105
113.5
126
123.5
141
167
117
127
―
141.5
162
195
2.9
4.1
―
5.3
7.3
8.4
1.2
1.2
―
2.9
2.9
3.1
1
1
0.6
1
2
2.5
0.5
0.5
―
0.5
0.5
0.5
0.27
0.536
0.626
0.89
1.79
4.23
2）Sealed and shielded bearings are also available. 3）This dimension applies to sealed and shielded bearings. 4）Does not include bearings with snap rings.
B-15
● Deep Groove Ball Bearings
B
r
r
φD
φd
Open type
Shielded type
(ZZ)
Non-contact
sealed type
(LLB)
Contact
sealed type
（LLU）
d 90 ∼ 120mm
Boundary dimensions
Basic load ratings
dynamic static dynamic
Factor
Limiting speeds
-1
mm
kN
Bearing numbers
static
kgf
rNS
min
grease
oil
open type open type
ZZ LLB Z LB
nonlowcontact torque contact
open shielded sealed sealed
type
type
type
type
d
D
B
rs min1）
min
90
115
125
140
140
160
190
13
18
16
24
30
43
1
1.1
1
1.5
2
3
0.5
0.5
―
0.5
0.5
0.5
19.0 19.7 1 940
33.0 31.5 3 350
33.5 33.5 3 400
58.0 49.5 5 950
96.0 71.5 9 800
143
107
14 500
2 010
3 200
3 400
5 050
7 300
10 900
16.1
16.5
16.5
15.6
14.5
13.3
5 400
5 100
4 700
4 700
4 000
3 600
6 300
6 000
5 600
5 600
4 700
4 200
3 000
2 900
―
2 800
2 600
2 400
6818
6918
16018
6018
6218
6318
ZZ
ZZ
―
ZZ
ZZ
ZZ
LLB
LLB
―
LLB
LLB
LLB
LLU
LLU
―
LLU
LLU
LLU
95
120
130
145
145
170
200
13
18
16
24
32
45
1
1.1
1
1.5
2.1
3
0.5
0.5
―
0.5
0.5
0.5
19.3 20.5 1 970
33.5 33.5 3 450
34.5 35.0 3 500
60.5 54.0 6 150
109
82.0 11 100
153
119
15 600
2 090
3 400
3 550
5 500
8 350
12 100
16.1
16.6
16.5
15.8
14.4
13.3
5 000
4 800
4 500
4 500
3 700
3 300
5 900
5 700
5 300
5 300
4 400
3 900
2 800
2 800
―
2 600
2 500
2 300
6819
6919
16019
6019
6219
6319
ZZ
ZZ
―
ZZ
ZZ
ZZ
LLB
LLB
―
LLB
LLB
―
LLU
LLU
―
LLU
LLU
LLU
100
125
140
150
150
180
215
13
20
16
24
34
47
1
1.1
1
1.5
2.1
3
0.5
0.5
―
0.5
0.5
―
19.6 21.2 2 000
41.0 39.5 4 200
35.0 36.5 3 600
60.0 54.0 6 150
122
93.0 12 500
173
141
17 600
2 160
4 050
3 750
5 500
9 450
14 400
16.0
16.4
16.4
15.9
14.4
13.2
4 800
4 500
4 200
4 200
3 500
3 200
5 600
5 300
5 000
5 000
4 200
3 700
2 700
2 600
―
2 600
2 300
2 200
6820
6920
16020
6020
6220
6320
ZZ
ZZ
―
ZZ
ZZ
ZZ
LLB
LLB
―
LLB
LLB
―
LLU
LLU
―
LLU
LLU
LLU
105
130
145
160
160
190
225
13
20
18
26
36
49
1
1.1
1
2
2.1
3
0.5
0.5
―
0.5
0.5
―
19.8 22.0 2 020
42.5 42.0 4 300
52.0 50.5 5 300
72.5 65.5 7 400
133
105
13 600
184
153
18 700
2 240
4 300
5 150
6 700
10 700
15 700
15.9
16.5
16.3
15.8
14.4
13.2
4 600
4 300
4 000
4 000
3 400
3 000
5 400
5 100
4 700
4 700
4 000
3 600
―
2 500
―
2 400
2 300
2 100
6821
6921
16021
6021
6221
6321
―
ZZ
―
ZZ
ZZ
ZZ
―
LLB
―
LLB
―
―
―
LLU
―
LLU
LLU
LLU
110
140
150
170
170
200
240
16
20
19
28
38
50
1
1.1
1
2
2.1
3
0.5
0.5
―
0.5
0.5
―
24.9 28.2 2 540
43.5 44.5 4 450
57.5 56.5 5 850
82.0 73.0 8 350
144
117
14 700
205
179
20 900
2 880
4 550
5 800
7 450
11 900
18 300
16.0
16.6
16.3
15.6
14.3
13.1
4 300
4 100
3 800
3 800
3 200
2 900
5 100
4 800
4 500
4 500
3 800
3 400
―
2 400
―
2 300
2 200
1 900
6822
6922
16022
6022
6222
6322
―
ZZ
―
ZZ
ZZ
ZZ
―
LLB
―
LLB
―
―
―
LLU
―
LLU
LLU
LLU
120
150
165
180
180
16
22
19
28
1
0.5
1.1 0.5
1
―
2
0.5
3 350
5 500
6 450
8 100
16.0
16.5
16.4
15.9
4 000
3 800
3 500
3 500
4 700
4 400
4 100
4 100
―
―
―
2 100
6824
6924
16024
6024
―
―
―
ZZ
―
―
―
LLB
―
―
―
LLU
Cr
28.9
53.0
63.0
85.0
Cor
33.0
54.0
63.5
79.5
Cr
2 950
5 400
6 450
8 650
Cor
fo
1）Smallest allowable dimension for chamfer dimension r.
B-16
LLU
● Deep Groove Ball Bearings
CY
a
B
rN
f
b
rNa
r
ro
ro
r
φD φD1
Dynamic equivalent radial load
Pr＝XFr＋YFa
Fa
Fa
fo・Fa
≦e
Fr
Fr ＞e
e
Cor
X Y X
Y
0.172 0.19
2.30
0.345 0.22
1.99
0.689 0.26
1.71
1.03 0.28
1.55
0 0.56 1.45
1.38 0.30 1
2.07 0.34
1.31
3.45 0.38
1.15
5.17 0.42
1.04
6.89 0.44
1.00
CZ
ra
φd
With snap ring groove
Bearing
numbers
φda
Static equivalent radial load
Por＝0.6Fr＋0.5Fa
When Por＜Fr use Por＝Fr
With snap ring
Snap ring groove
dimensions
mm
snap2） snap2）
ring
ring
D1
groove
max
φDXφDa
φD2
Snap ring
dimensions
mm
a
b
ro
D2
f
max
min
max
max
max
Mass4）
Abutment and fillet dimensions
mm
da
min
max3）
kg
Da
DX
CY
CZ
ras
r Nas
max
(approx.)
max
min
max
max
(approx.)
N
N
―
N
N
N
NR
NR
―
NR
NR
NR
112.6
2.1
1.3
122.6
3.3
1.3
―
―
―
135.23 3.71 3.1
155.22 4.9
3.1
183.64 5.69 3.5
0.4
0.4
―
0.6
0.6
0.6
120.7
130.7
―
149.7
169.7
202.9
1.12
1.12
―
2.82
2.82
3.1
95
96
96.5 99
95
―
98 102
99 109
103 118
110
118.5
135
132
151
177
122
132
―
152
172
205
2.9
4.1
―
6.1
7.3
8.4
1.2
1.2
―
2.9
2.9
3.1
1
1
1
1.5
2
2.5
0.5
0.5
―
0.5
0.5
0.5
0.285
0.554
0.848
1.02
2.15
4.91
N
N
―
N
N
N
NR
NR
―
NR
NR
NR
117.6
2.1
1.3
127.6
3.3
1.3
―
―
―
140.23 3.71 3.1
163.65 5.69 3.5
193.65 5.69 3.5
0.4
0.4
―
0.6
0.6
0.6
125.7
135.7
―
154.7
182.9
212.9
1.12
1.12
―
2.82
3.1
3.1
100
101.5
100
103
106
108
101
104
―
109
116
125
115
123.5
140
137
159
187
127
137
―
157
185
215
2.9
4.1
―
6.1
8.4
8.4
1.2
1.2
―
2.9
3.1
3.1
1
1
1
1.5
2
2.5
0.5
0.5
―
0.5
0.5
0.5
0.3
0.579
0.885
1.08
2.62
5.67
N
N
―
N
N
N
NR
NR
―
NR
NR
NR
122.6
2.1
1.3
137.6
3.3
1.9
―
―
―
145.24 3.71 3.1
173.66 5.69 3.5
208.6
5.69 3.5
0.4
0.6
―
0.6
0.6
1
130.7
145.7
―
159.7
192.9
227.8
1.12
1.7
―
2.82
3.1
3.1
105
106.5
105
108
111
113
106
110
―
110
122
133
120
133.5
145
142
169
202
132
147
―
162
195
230
2.9
4.7
―
6.1
8.4
8.4
1.2
1.7
―
2.9
3.1
3.1
1
1
1
1.5
2
2.5
0.5
0.5
―
0.5
0.5
0.5
0.313
0.785
0.91
1.15
3.14
7
N
N
―
N
N
N
NR
NR
―
NR
NR
NR
127.6
2.1
1.3
142.6
3.3
1.9
―
―
―
155.22 3.71 3.1
183.64 5.69 3.5
217.0
6.5
4.5
0.4
0.6
―
0.6
0.6
1
135.7
150.7
―
169.7
202.9
237
1.12
1.7
―
2.82
3.1
3.5
110
111.5
110
114
116
118
―
115
―
119
125
134
125
138.5
155
151
179
212
137
152
―
172
205
239
2.9
4.7
―
6.1
8.4
9.6
1.2
1.7
―
2.9
3.1
3.5
1
1
1
2
2
2.5
0.5
0.5
―
0.5
0.5
0.5
0.33
0.816
1.2
1.59
3.7
8.05
N
N
―
N
N
N
NR
NR
―
NR
NR
NR
137.6
2.5
1.9
147.6
3.3
1.9
―
―
―
163.65 3.71 3.5
193.65 5.69 3.5
232.0
6.5
4.5
0.6
0.6
―
0.6
0.6
1
145.7
155.7
―
182.9
212.9
252
1.7
1.7
―
3.1
3.1
3.5
115
116.5
115
119
121
123
―
120
―
126
132
149
135
143.5
165
161
189
227
147
157
―
185
215
254
3.9
4.7
―
6.4
8.4
9.6
1.7
1.7
―
3.1
3.1
3.5
1
1
1
2
2
2.5
0.5
0.5
―
0.5
0.5
0.5
0.515
0.849
1.46
1.96
4.36
9.54
N
N
―
N
NR 147.6
2.5
1.9
NR 161.8
3.7
1.9
―
―
―
―
NR 173.66 3.71 3.5
0.6
0.6
―
0.6
155.7
171.5
―
192.9
1.7
1.7
―
3.1
125
―
126.5 ―
125
―
129 136
145 157
158.5 173
175
―
171 195
3.9
5.1
―
6.4
1.7
1.7
―
3.1
1
1
1
2
0.5
0.5
―
0.5
0.555
1.15
1.56
2.07
2）Sealed and shielded bearings are also available. 3）This dimension applies to sealed and shielded bearings. 4）Does not include bearings with snap rings.
B-17
● Deep Groove Ball Bearings
B
r
r
φD
φd
Open type
Shielded type
(ZZ)
Contact
sealed type
（LLU）
d 120 ∼ 170mm
Boundary dimensions
dynamic
Basic load ratings
static
dynamic
Factor
Limiting speeds
Bearing numbers
static
-1
mm
kN
kgf
rNS
rs min1）
min
40
55
2.1
3
130
165
180
200
200
230
280
18
24
22
33
40
58
140
175
190
210
210
250
300
d
D
B
120
215
260
Cr
Cor
LLU
contact
open shielded sealed
type
type
type
Cr
Cor
―
―
155
207
131
185
15 900
21 100
13 400
18 800
14.4
13.5
2 900
2 600
3 400
3 100
2 000
―
6224
6324
ZZ
―
LLU
―
1.1
1.5
1.1
2
3
4
0.5
0.5
―
0.5
―
―
37.0
65.0
80.0
106
167
229
41.0
67.5
79.5
101
146
214
3 750
6 650
8 150
10 800
17 000
23 400
4 200
6 850
8 100
10 300
14 900
21 800
16.1
16.5
16.2
15.8
14.5
13.6
3 700
3 500
3 200
3 200
2 700
2 400
4 300
4 100
3 800
3 800
3 100
2 800
―
―
―
1 900
―
―
6826
6926
16026
6026
6226
6326
―
―
―
ZZ
―
―
―
―
―
LLU
―
―
18
24
22
33
42
62
1.1
1.5
1.1
2
3
4
0.5
0.5
―
―
―
―
38.5
66.5
82.0
110
166
253
44.5
71.5
85.0
109
150
246
3 900
6 800
8 350
11 200
17 000
25 800
4 550
7 300
8 650
11 100
15 300
25 100
16.0
16.6
16.4
15.9
14.8
13.6
3 400
3 200
3 000
3 000
2 500
2 200
4 000
3 800
3 500
3 500
2 900
2 600
―
―
―
1 800
―
―
6828
6928
16028
6028
6228
6328
―
―
―
ZZ
―
―
―
―
―
LLU
―
―
150
190
210
225
225
270
320
20
28
24
35
45
65
1.1
2
1.1
2.1
3
4
0.5
―
―
―
―
―
47.5
85.0
96.5
126
176
274
55.0
90.5
101
126
168
284
4 850
8 650
9 850
12 800
18 000
28 000
5 600
9 200
10 300
12 800
17 100
28 900
16.1
16.5
16.4
15.9
15.1
13.9
3 100
3 000
2 800
2 800
2 300
2 100
3 700
3 500
3 200
3 200
2 700
2 400
―
―
―
1 700
―
―
6830
6930
16030
6030
6230
6330
―
―
―
ZZ
―
―
―
―
―
LLU
―
―
160
200
220
240
240
290
340
20
28
25
38
48
68
1.1
2
1.5
2.1
3
4
0.5
―
―
―
―
―
48.5
87.0
99.0
143
185
278
57.0
96.0
108
144
186
286
4 950
8 850
10 100
14 500
18 900
28 300
5 800
9 800
11 000
14 700
19 000
29 200
16.1
16.6
16.5
15.9
15.4
13.9
2 900
2 800
2 600
2 600
2 100
1 900
3 400
3 300
3 000
3 000
2 500
2 300
―
―
―
1 600
―
―
6832
6932
16032
6032
6232
6332
―
―
―
ZZ
―
―
―
―
―
LLU
―
―
170
215
230
260
260
310
360
22
28
28
42
52
72
1.1
2
1.5
2.1
4
4
―
―
―
―
―
―
60.0
86.0
119
168
212
325
70.5
95.5
128
172
223
355
6 100
8 750
12 100
17 200
21 700
33 500
7 200
9 750
13 100
17 600
22 800
36 000
16.1
16.5
16.4
15.8
15.3
13.6
2 700
2 600
2 400
2 400
2 000
1 800
3 200
3 100
2 800
2 800
2 400
2 100
―
―
―
―
―
―
6834
6934
16034
6034
6234
6334
―
―
―
―
―
―
―
―
―
―
―
―
1）Smallest allowable dimension for chamfer dimension r.
B-18
fo
min
grease
oil
open type open type
ZZ
Z
● Deep Groove Ball Bearings
CY
a
B
rN
f
Dynamic equivalent radial load
Pr＝XFr＋YFa
Fa
Fa
fo・Fa
≦e
Fr
Fr ＞e
e
Cor
X Y X
Y
0.172 0.19
2.30
0.345 0.22
1.99
0.689 0.26
1.71
1.03 0.28
1.55
0 0.56 1.45
1.38 0.30 1
2.07 0.34
1.31
3.45 0.38
1.15
5.17 0.42
1.04
6.89 0.44
1.00
CZ
b
rNa
r
ro
ro
r
φD φD1
ra
φd
With snap ring groove
Bearing
numbers
Static equivalent radial load
Por＝0.6Fr＋0.5Fa
When Por＜Fr use Por＝Fr
Snap ring
dimensions
mm
a
b
ro
D2
f
max
min
max
max
max
6.5
―
4.5
―
N
―
NR 217.0
―
―
N
N
―
N
N
―
NR
NR
―
NR
NR
―
N
N
―
―
N
―
NR 171.8
NR 186.8
―
―
―
―
NR 242.0
―
―
3.3
3.7
―
―
6.,5
―
N
―
―
―
―
―
NR 186.8
―
―
―
―
―
―
―
―
―
―
N
―
―
―
―
―
―
―
―
―
―
―
mm
da
min
227.8
―
3.1
―
131
133
0.6
0.6
―
0.6
1
―
171.5
186.5
―
212.9
242
―
1.7
1.7
―
3.1
3.5
―
1.9
1.9
―
―
4.5
―
0.6
0.6
―
―
1
―
181.5
196.5
―
―
262
―
3.3
―
―
―
―
―
1.9
―
―
―
―
―
0.6
―
―
―
―
―
NR 196.8
―
―
―
―
―
―
―
―
―
―
3.3
―
―
―
―
―
1.9
―
―
―
―
―
0.6
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
161.8
3.3
1.9
176.8
3.7
1.9
―
193.65 5.69 3.5
222.0
6.5
4.5
―
―
―
Mass4）
Abutment and fillet dimensions
1
―
―
―
―
―
―
―
φda
With snap ring
Snap ring groove
dimensions
mm
snap2） snap2）
ring
ring
D1
groove
max
φDXφDa
φD2
max3）
Da
DX
CY
CZ
ras
r Nas
max
(approx.)
max
min
max
max
(approx.)
204
247
230
―
9.2
―
3.1
―
2
2.5
0.5
―
5.15
12.4
136.5 ―
138
―
136.5 ―
139 148
143
―
146
―
158.5
172
193.5
191
217
264
173
188
―
215
244
―
4.7
5.1
―
8.4
9.6
―
1.7
1.7
―
3.1
3.5
―
1
1.5
1
2
2.5
3
0.5
0.5
―
0.5
0.5
―
0.8
1.52
2.31
3.16
5.82
15.3
1.7
1.7
―
―
3.5
―
146.5 ―
148
―
146.5 ―
149 158
153
―
156
―
168.5 183
182 198
203.5 ―
201
―
237 264
284
―
4.7
5.1
―
―
9.6
―
1.7
1.7
―
―
3.5
―
1
1.5
1
2
2.5
3
0.5
0.5
―
―
0.5
―
0.85
1.62
2.45
3.35
7.57
18.5
196.5
―
―
―
―
―
1.7
―
―
―
―
―
156.5 ―
159
―
156.5 ―
161 169
163
―
166
―
183.5 198
201
―
218.5 ―
214
―
257
―
304
―
4.7
―
―
―
―
―
1.7
―
―
―
―
―
1
2
1
2
2.5
3
0.5
―
―
―
―
―
1.16
2.47
3.07
4.08
9.41
22
206.5
―
―
―
―
―
1.7
―
―
―
―
―
166.5 ―
169
―
168
―
171 183
173
―
176
―
193.5 208
211
―
232
―
229
―
277
―
324
―
4.7
―
―
―
―
―
1.7
―
―
―
―
―
1
2
1.5
2
2.5
3
0.5
―
―
―
―
―
1.23
2.61
3.64
5.05
11.7
26
―
―
―
―
―
―
176.5
179
178
181
186
186
―
―
―
―
―
―
―
―
―
―
―
―
1
2
1.5
2
3
3
―
―
―
―
―
―
1.63
2.74
4.93
6.76
14.5
30.7
―
―
―
―
―
―
143
―
kg
―
―
―
―
―
―
208.5
221
252
249
294
344
―
―
―
―
―
―
2）Sealed and shielded bearings are also available. 3）This dimension applies to sealed and shielded bearings. 4）Does not include bearings with snap rings.
B-19
● Deep Groove Ball Bearings
B
ra
r
ra
r
φD
φDa
φd
φda
Open Type
d 180 ∼ 260mm
Boundary dimensions
Basic load ratings
static
dynamic
dynamic
Factor
Limiting speeds
static
Bearing
numbers
-1
min
mm
kN
kgf
fo
grease
lubrication
oil
lubrication
open
type
7 450
12 200
13 600
20 300
24 600
41 500
16.1
16.5
16.5
15.6
15.1
13.9
2 600
2 400
2 300
2 300
1 900
1 700
3 000
2 900
2 700
2 700
2 200
2 000
6836
6936
16036
6036
6236
6336
7 450
11 500
13 700
20 100
26 000
36 000
9 000
13 000
15 900
21 900
28 700
42 500
16.1
16.6
16.6
15.8
15.0
14.1
2 400
2 300
2 100
2 100
1 800
1 600
2 900
2 700
2 500
2 500
2 100
1 900
6838
6938
16038
6038
6238
6338
91.5
168
160
243
310
500
7 550
16 000
14 400
22 200
27 400
42 000
9 300
17 100
16 300
24 800
31 500
51 000
16.1
16.2
16.6
15.6
15.2
13.8
2 300
2 200
2 000
2 000
1 700
1 500
2 700
2 600
2 400
2 400
2 000
1 800
6840
6940
16040
6040
6240
6340
76.5
160
181
241
297
410
98.0
180
216
289
365
520
7 800
16 400
18 500
24 600
30 500
42 000
10 000
18 400
22 000
29 400
37 000
53 000
16.0
16.4
16.5
15.8
15.3
14.3
2 100
2 000
1 800
1 800
1 500
1 400
2 400
2 300
2 200
2 200
1 800
1 600
6844
6944
16044
6044
6244
6344
2
2.1
2.1
3
85.0
170
178
249
112
203
217
310
8 650
17 300
18 200
25 400
11 400
20 700
22 100
32 000
15.9
16.5
16.5
16.0
1 900
1 800
1 700
1 700
2 200
2 100
2 000
2 000
6848
6948
16048
6048
2
2.1
3
4
87.0
222
227
291
120
280
299
375
8 900
22 600
23 200
29 700
12 200
28 500
30 500
38 500
15.8
16.3
16.5
15.8
1 700
1 600
1 500
1 500
2 000
1 900
1 800
1 800
6852
6952
16052
6052
rs min1）
d
D
B
180
225
250
280
280
320
380
22
33
31
46
52
75
1.1
2
2
2.1
4
4
190
240
260
290
290
340
400
24
33
31
46
55
78
200
250
280
310
310
360
420
Cr
Cor
Cr
Cor
60.5
110
117
189
227
355
73.0
119
134
199
241
405
6 200
11 200
11 900
19 300
23 200
36 000
1.5
2
2
2.1
4
5
73.0
113
134
197
255
355
88.0
127
156
215
281
415
24
38
34
51
58
80
1.5
2.1
2
2.1
4
5
74.0
157
142
218
269
410
220
270
300
340
340
400
460
24
38
37
56
65
88
1.5
2.1
2.1
3
4
5
240
300
320
360
360
28
38
37
56
260
320
360
400
400
28
46
44
65
1）Smallest allowable dimension for chamfer dimension r.
B-20
● Deep Groove Ball Bearings
Dynamic equivalent radial load
Pr＝XFr＋YFa
Fa
Fa
fo・Fa
≦e
Fr
Fr ＞e
e
Cor
X Y X
Y
0.172 0.19
2.30
0.345 0.22
1.99
0.689 0.26
1.71
1.03 0.28
1.55
0 0.56 1.45
1.38 0.30 1
2.07 0.34
1.31
3.45 0.38
1.15
5.17 0.42
1.04
6.89 0.44
1.00
Static equivalent radial load
Por＝0.6Fr＋0.5Fa
When Por＜Fr use Por＝Fr
Abutment and fillet
dimensions
mm
Mass
kg
da
Da
ras
min
max
max
(approx.)
186.5
189
189
191
196
196
218.5
241
271
269
304
364
1
2
2
2
3
3
2.03
4.76
6.49
8.8
15.1
35.6
198
199
199
201
206
210
232
251
281
279
324
380
1.5
2
2
2
3
4
2.62
4.98
6.77
9.18
18.2
41
208
211
209
211
216
220
242
269
301
299
344
400
1.5
2
2
2
3
4
2.73
7.1
8.68
11.9
21.6
46.3
228
231
231
233
236
240
262
289
329
327
384
440
1.5
2
2
2.5
3
4
3
7.69
11.3
15.7
30.2
60.8
249
251
251
253
291
309
349
347
2
2
2
2.5
4.6
8.28
12.1
16.8
269
271
273
276
311
349
387
384
2
2
2.5
3
5
13.9
18.5
25
B-21
● Deep Groove Ball Bearings
B
ra
r
ra
r
φD
φDa
φd
φda
Open Type
d 280 ∼ 440mm
Boundary dimensions
Basic load ratings
static
dynamic
dynamic
Factor
Limiting speeds
static
Bearing
numbers
-1
min
mm
d
D
kN
B
rs min1）
Cr
kgf
Cor
Cr
Cor
fo
grease
lubrication
oil
lubrication
open
type
280
350
380
420
420
33
46
44
65
2
2.1
3
4
137
227
232
325
177
299
315
420
13 900
23 200
23 700
33 000
18 100
30 500
32 500
43 000
16.1
16.5
16.5
15.5
1 600
1 500
1 400
1 400
1 900
1 800
1 600
1 600
6856
6956
16056
6056
300
380
420
460
460
38
56
50
74
2.1
3
4
4
162
276
292
355
210
375
410
480
16 500
28 200
29 800
36 000
21 500
38 500
42 000
49 000
16.1
16.2
16.3
15.6
1 500
1 400
1 300
1 300
1 700
1 600
1 500
1 500
6860
6960
16060
6060
320
400
440
480
480
38
56
50
74
2.1
3
4
4
168
285
300
370
228
405
440
530
17 200
29 000
30 500
38 000
23 200
41 000
45 000
54 000
16.1
16.4
16.4
15.7
1 400
1 300
1 200
1 200
1 600
1 500
1 400
1 400
6864
6964
16064
6064
340
420
460
520
520
38
56
57
82
2.1
3
4
5
170
293
340
420
236
430
515
610
17 400
29 800
35 000
42 500
24 000
44 000
52 500
62 500
16.0
16.5
16.3
15.6
1 300
1 200
1 100
1 100
1 500
1 400
1 300
1 300
6868
6968
16068
6068
360
440
480
540
540
38
56
57
82
2.1
3
4
5
187
300
350
440
258
455
550
670
19 100
30 500
36 000
44 500
26 300
46 500
56 000
68 000
16.0
16.5
16.4
15.7
1 200
1 100
1 100
1 100
1 400
1 300
1 200
1 200
6872
6972
16072
6072
380
480
520
560
46
65
82
2.1
4
5
231
325
455
340
510
725
23 600
33 000
46 500
34 500
52 000
74 000
16.1
16.6
15.9
1 100
1 100
990
1 300
1 200
1 200
6876
6976
6076
400
500
540
600
46
65
90
2.1
4
5
226
335
510
340
535
825
23 100
34 000
52 000
34 500
54 500
84 000
16.0
16.5
15.7
1 100
990
930
1 200
1 200
1 100
6880
6980
6080
420
520
560
620
46
65
90
2.1
4
5
260
340
530
405
560
895
26 500
35 000
54 000
41 500
57 000
91 000
16.1
16.4
15.8
1 000
940
880
1 200
1 100
1 000
6884
6984
6084
440
540
600
46
74
2.1
4
264
365
420
615
26 900
37 500
43 000
63 000
16.0
16.4
950
890
1 100
1 000
6888
6988
1）Smallest allowable dimension for chamfer dimension r.
B-22
● Deep Groove Ball Bearings
Dynamic equivalent radial load
Pr＝XFr＋YFa
Fa
Fa
fo・Fa
≦e
Fr
Fr ＞e
e
Cor
X Y X
Y
0.172 0.19
2.30
0.345 0.22
1.99
0.689 0.26
1.71
1.03 0.28
1.55
0 0.56 1.45
1.38 0.30 1
2.07 0.34
1.31
3.45 0.38
1.15
5.17 0.42
1.04
6.89 0.44
1.00
Static equivalent radial load
Por＝0.6Fr＋0.5Fa
When Por＜Fr use Por＝Fr
Abutment and fillet
dimensions
mm
da
Da
ras
min
max
max
Mass
kg
(approx.)
289
291
293
296
341
369
407
404
2
2
2.5
3
7.4
14.8
23
31
311
313
316
316
369
407
444
444
2
2.5
3
3
10.5
23.5
32.5
43.8
331
333
336
336
389
427
464
464
2
2.5
3
3
10.9
24.8
34.2
46.1
351
353
356
360
409
447
504
500
2
2.5
3
4
11.5
26.2
47.1
61.8
371
373
376
380
429
467
524
520
2
2.5
3
4
12.3
27.5
49.3
64.7
391
396
400
469
504
540
2
3
4
19.7
39.8
67.5
411
416
420
489
524
580
2
3
4
20.6
41.6
87.6
431
436
440
509
544
600
2
3
4
21.6
43.4
91.1
451
456
529
584
2
3
22.5
60
B-23
● Deep Groove Ball Bearings
B
ra
r
ra
r
φD
φDa
φd
φda
Open Type
d 460 ∼ 600mm
Boundary dimensions
Basic load ratings
static
dynamic
dynamic
Factor
Limiting speeds
static
Bearing
numbers
-1
min
mm
kN
rs min1）
kgf
grease
lubrication
oil
lubrication
open
type
d
D
B
460
580
620
56
74
3
4
315
375
515
645
32 000
38 500
52 500
66 000
16.2
16.4
900
850
1 100
1 000
6892
6992
480
600
650
56
78
3
5
320
430
540
770
32 500
44 000
55 000
78 500
16.1
16.5
860
810
1 000
950
6896
6996
500
620
670
56
78
3
5
325
445
560
805
33 500
45 500
57 000
82 500
16.1
16.5
820
770
970
910
68/500
69/500
530
650
56
3
330
580
34 000
59 500
16.0
770
900
68/530
560
680
56
3
335
600
34 000
61 500
16.0
710
840
68/560
600
730
60
3
375
705
38 500
72 000
16.0
660
780
68/600
Cr
Cor
Cr
Cor
1）Smallest allowable dimension for chamfer dimension r.
B-24
fo
● Deep Groove Ball Bearings
Dynamic equivalent radial load
Pr＝XFr＋YFa
Fa
Fa
fo・Fa
≦e
Fr
Fr ＞e
e
Cor
X Y X
Y
0.172 0.19
2.30
0.345 0.22
1.99
0.689 0.26
1.71
1.03 0.28
1.55
0 0.56 1.45
1.38 0.30 1
2.07 0.34
1.31
3.45 0.38
1.15
5.17 0.42
1.04
6.89 0.44
1.00
Static equivalent radial load
Por＝0.6Fr＋0.5Fa
When Por＜Fr use Por＝Fr
Abutment and fillet
dimensions
mm
Mass
kg
da
Da
ras
min
max
max
(approx.)
473
476
567
604
2.5
3
34.8
62.2
493
500
587
630
2.5
4
36.2
73.0
513
520
607
650
2.5
4
37.5
75.5
543
637
2.5
39.5
573
667
2.5
41.5
613
717
2.5
51.7
B-25
● Expansion Compensating Bearings
B
r
r
φD
φd
Open type
Shielded type
(ZZ)
Non-contact
sealed type
(LLB)
d 10 ∼ 50mm
Boundary dimensions
Basic load ratings
dynamic static dynamic static
Contact
sealed type
（LLU）
d
D
B
rs min2）
Cr
Cor
Cr
Cor
Allowable Factor Limiting speeds
load
min-1
kN
kgf
grease
oil
open type open type
Cp
Cp
fo
ZZ,LLB Z,LB
LU,LLU
10
26
30
35
8
9
11
0.3
0.6
0.6
4.55
5.10
8.20
1.96
2.39
3.50
465
520
835
200
244
355
1.65
2.39
3.45
168
244
355
12.4 29 000
13.2 25 000
11.4 23 000
34 000
30 000
27 000
21 000
18 000
16 000
EC-6000
EC-6200
EC-6300
ZZ
ZZ
ZZ
LLB
LLB
LLB
LLU
LLU
LLU
12
28
32
37
8
10
12
0.3
0.6
1
5.10
6.10
9.70
2.39
2.75
4.20
520
620
990
244
280
425
1.78
2.29
3.65
181
233
375
13.2 26 000
12.7 22 000
11.1 20 000
30 000
26 000
24 000
18 000
16 000
15 000
EC-6001
EC-6201
EC-6301
ZZ
ZZ
ZZ
LLB
LLB
LLB
LLU
LLU
LLU
15
32
35
42
9
11
13
0.3
0.6
1
5.60
7.75
11.4
2.83
570
3.60
790
5.45 1 170
289
365
555
2.83
2.78
4.40
289
284
450
13.9 22 000
12.7 19 000
12.3 17 000
26 000
23 000
21 000
15 000
15 000
12 000
EC-6002
EC-6202
EC-6302
ZZ
ZZ
ZZ
LLB
LLB
LLB
LLU
LLU
LLU
17
35
40
47
10
12
14
0.3
0.6
1
6.80
9.60
13.5
3.35
695
4.60
980
6.55 1 380
345
465
665
2.88
3.45
6.55
294
350
665
13.6 20 000
12.8 18 000
12.2 16 000
24 000
21 000
19 000
14 000
12 000
11 000
EC-6003
EC-6203
EC-6303
ZZ
ZZ
ZZ
LLB
LLB
LLB
LLU
LLU
LLU
20
42
47
52
12
14
15
0.6
1
1.1
9.40
12.8
15.9
5.05
955
6.65 1 310
7.90 1 620
515
680
805
5.05
5.05
7.90
515
515
805
13.9 18 000
13.2 16 000
12.4 14 000
21 000
18 000
17 000
11 000
10 000
10 000
EC-6004
EC-6204
EC-6304
ZZ
ZZ
ZZ
LLB
LLB
LLB
LLU
LLU
LLU
25
47
52
62
12
15
17
0.6
1
1.1
10.1
14.0
21.2
5.85 1 030
7.85 1 430
10.9 2 160
595 5.85
595
800 6.55
665
1 110 10.9 1 110
14.5 15 000
13.9 13 000
12.6 12 000
18 000
15 000
14 000
9 400
8 900
8 100
EC-6005
EC-6205
EC-6305
ZZ
ZZ
ZZ
LLB
LLB
LLB
LLU
LLU
LLU
30
55
62
72
13
16
19
1
1
1.1
13.2
19.5
26.7
8.30 1 350
11.3 1 980
15.0 2 720
845 8.30
845
1 150 9.85 1 000
1 530 15.0 1 530
14.8 13 000
13.8 11 000
13.3 10 000
15 000
13 000
12 000
7 700
7 300
6 600
EC-6006
EC-6206
EC-6306
ZZ
ZZ
ZZ
LLB
LLB
LLB
LLU
LLU
LLU
35
62
72
80
14
17
21
1
1.1
1.5
16.0
25.7
33.5
10.3
15.3
19.1
1 630
2 620
3 400
1 050 10.3
1 560 14.5
1 950 18.5
1 050
1 480
1 890
14.8 12 000
13.8 9 800
13.1 8 800
14 000
11 000
10 000
6 800
6 300
6 000
EC-6007
EC-6207
EC-6307
ZZ
ZZ
ZZ
LLB
LLB
LLB
LLU
LLU
LLU
40
68
80
90
15
18
23
1
1.1
1.5
16.8
29.1
40.5
11.5
17.8
24.0
1 710
2 970
4 150
1 170 11.5
1 820 17.5
2 450 23.4
1 170
1 780
2 380
15.2 10 000
14.0 8 700
13.2 7 800
12 000
10 000
9 200
6 100
5 600
5 300
EC-6008
EC-6208
EC-6308
ZZ
ZZ
ZZ
LLB
LLB
LLB
LLU
LLU
LLU
45
75
85
100
16
19
25
1
1.1
1.5
21.0
32.5
53.0
15.1
20.4
32.0
2 140
3 350
5 400
1 540 15.1
2 080 20.3
3 250 27.4
1 540
2 070
2 790
15.3
14.1
13.1
9 200
7 800
7 000
11 000
9 200
8 200
5 400
5 200
4 700
EC-6009
EC-6209
EC-6309
ZZ
ZZ
ZZ
LLB
LLB
LLB
LLU
LLU
LLU
50
80
90
110
16
20
27
1
1.1
2
21.8
35.0
62.0
16.6
23.2
38.5
2 230
3 600
6 300
1 690 16.6
2 370 17.7
3 900 33.0
1 690
1 810
3 350
15.5
14.4
13.2
8 400
7 100
6 400
9 800
8 300
7 500
5 000
4 700
4 200
EC-6010
EC-6210
EC-6310
ZZ
ZZ
ZZ
LLB
LLB
LLB
LLU
LLU
LLU
mm
kN
kgf
Bearing numbers
non-1）
contact contact
open shielded1）sealed sealed
type
type
type
type
1）This bearing number is for double sealed and double shielded type bearings, but single sealed and single shielded type are also available. 2）Smallest allowable dimension for chamfer dimension r.
B-26
● Expansion Compensating Bearings
ra
ra
φDa
φda
Dynamic equivalent radial load
Pr＝XFr＋YFa
Fa
Fa
fo・Fa
≦e
Fr
Fr ＞e
e
Cor
X Y X
Y
0.172 0.19
2.30
0.345 0.22
1.99
0.689 0.26
1.71
1.03 0.28
1.55
0 0.56 1.45
1.38 0.30 1
2.07 0.34
1.31
3.45 0.38
1.15
5.17 0.42
1.04
6.89 0.44
1.00
Static equivalent radial load
Por＝0.6Fr＋0.5Fa
When Por＜Fr use Por＝Fr
Abutment and fillet
dimensions
mm
Mass
kg
Da
ras
open type
min
max3）
max
max
(approx.)
12
14
14
13.5
16
17
24
26
31
0.3
0.6
0.6
0.019
0.031
0.051
14
16
17
16
17.5
18.5
26
28
32
0.3
0.6
1
0.021
0.036
0.058
17
19
20
19
20.5
23
30
31
37
0.3
0.6
1
0.029
0.043
0.079
19
21
22
21
23
25
33
36
42
0.3
0.6
1
0.037
0.062
0.11
24
25
26.5
26
28
28.5
38
42
45.5
0.6
1
1
0.066
0.101
0.139
29
30
31.5
30.5
32
35
43
47
55.5
0.6
1
1
0.075
0.122
0.223
35
35
36.5
37
39
43
50
57
65.5
1
1
1
0.11
0.191
0.334
40
41.5
43
42
45
47
57
65.5
72
1
1
1.5
0.148
0.277
0.44
45
46.5
48
47
51
54
63
73.5
82
1
1
1.5
0.183
0.352
0.609
50
51.5
53
52.5
55.5
61.5
70
78.5
92
1
1
1.5
0.233
0.391
0.80
55
56.5
59
57.5
60
68.5
75
83.5
101
1
1
2
0.246
0.444
1.03
da
3）This dimension applies to sealed and shielded bearings.
B-27
● AC Bearings
B
r
r
φD
φd
Open type
Shielded type
(ZZ)
Non-contact
sealed type
(LLB)
d 10 ∼ 45mm
Boundary dimensions
Basic load ratings
dynamic static dynamic static
Contact
sealed type
（LLU）
d
D
B
rs min2）
Cr
Cor
Cr
Cor
Allowable Factor Limiting speeds
load
min-1
kN
kgf
grease
oil
open type open type
Cp
Cp
fo
ZZ,LLB Z,LB
LU,LLU
10
26
30
35
8
9
11
0.3
0.6
0.6
4.55
5.10
8.20
1.96
2.39
3.50
465
520
835
200
244
355
1.53
2.39
2.98
156
244
305
12.4 29 000
13.2 25 000
11.4 23 000
34 000
30 000
27 000
21 000
18 000
16 000
AC-6000
AC-6200
AC-6300
ZZ
ZZ
ZZ
LLB
LLB
LLB
LLU
LLU
LLU
12
28
32
37
8
10
12
0.3
0.6
1
5.10
6.10
9.70
2.39
2.75
4.20
520
620
990
244
280
425
1.73
2.75
3.00
177
280
310
13.2 26 000
12.7 22 000
11.1 20 000
30 000
26 000
24 000
18 000
16 000
15 000
AC-6001
AC-6201
AC-6301
ZZ
ZZ
ZZ
LLB
LLB
LLB
LLU
LLU
LLU
15
32
35
42
9
11
13
0.3
0.6
1
5.60
7.75
11.4
2.83
570
3.60
790
5.45 1 170
289
365
555
2.43
2.71
3.90
247
277
400
13.9 22 000
12.7 19 000
12.3 17 000
26 000
23 000
21 000
15 000
15 000
12 000
AC-6002
AC-6202
AC-6302
ZZ
ZZ
ZZ
LLB
LLB
LLB
LLU
LLU
LLU
17
35
40
47
10
12
14
0.3
0.6
1
6.80
9.60
13.5
3.35
695
4.60
980
6.55 1 380
345
465
665
2.44
3.50
5.10
249
355
520
13.6 20 000
12.8 18 000
12.2 16 000
24 000
21 000
19 000
14 000
12 000
11 000
AC-6003
AC-6203
AC-6303
ZZ
ZZ
ZZ
LLB
LLB
LLB
LLU
LLU
LLU
20
42
47
52
12
14
15
0.6
1
1.1
9.40
12.8
15.9
5.05
955
6.65 1 310
7.90 1 620
515
680
805
3.80
4.20
5.40
385
430
550
13.9 18 000
13.2 16 000
12.4 14 000
21 000
18 000
17 000
11 000
10 000
10 000
AC-6004
AC-6204
AC-6304
ZZ
ZZ
ZZ
LLB
LLB
LLB
LLU
LLU
LLU
25
47
52
62
12
15
17
0.6
1
1.1
10.1
14.0
21.2
5.85 1 030
7.85 1 430
10.9 2 160
595
800
1 110
4.50
5.80
7.30
460
590
745
14.5 15 000
13.9 13 000
12.6 12 000
18 000
15 000
14 000
9 400
8 900
8 100
AC-6005
AC-6205
AC-6305
ZZ
ZZ
ZZ
LLB
LLB
LLB
LLU
LLU
LLU
30
55
62
72
13
16
19
1
1
1.1
13.2
19.5
26.7
8.30 1 350
11.3 1 980
15.0 2 720
845 6.85
695
1 150 7.55
770
1 530 11.0 1 120
14.8 13 000
13.8 11 000
13.3 10 000
15 000
13 000
12 000
7 700
7 300
6 600
AC-6006
AC-6206
AC-6306
ZZ
ZZ
ZZ
LLB
LLB
LLB
LLU
LLU
LLU
35
62
72
80
14
17
21
1
1.1
1.5
16.0
25.7
33.5
10.3
15.3
19.1
1 630
2 620
3 400
1 050 8.95
910
1 560 9.65
985
1 950 13.4 1 360
14.8 12 000
13.8 9 800
13.1 8 800
14 000
11 000
10 000
6 800
6 300
6 000
AC-6007
AC-6207
AC-6307
ZZ
ZZ
ZZ
LLB
LLB
LLB
LLU
LLU
LLU
40
80
90
18
23
1.1
1.5
29.1
40.5
17.8
24.0
2 970
4 150
1 820 11.6
2 450 16.6
1 190
1 690
14.0
13.2
8 700
7 800
10 000
9 200
5 600
5 300
AC-6208
AC-6308
ZZ
ZZ
LLB
LLB
LLU
LLU
45
85
100
19
25
1.1
1.5
32.5
53.0
20.4
32.0
3 350
5 400
2 080 14.7
3 250 21.8
1 500
2 200
14.1
13.1
7 800
7 000
9 200
8 200
5 200
4 700
AC-6209
AC-6309
ZZ
ZZ
LLB
LLB
LLU
LLU
mm
kN
kgf
Bearing numbers
non-1）
contact contact
open shielded1）sealed sealed
type
type
type
type
1）This bearing number is for double sealed and double shielded type bearings, but single sealed and single shielded type are also available. 2）Smallest allowable dimension for chamfer dimension r.
B-28
● AC Bearings
ra
ra
φDa
φda
Dynamic equivalent radial load
Pr＝XFr＋YFa
Fa
Fa
fo・Fa
≦e
Fr
Fr ＞e
e
Cor
X Y X
Y
0.172 0.19
2.30
0.345 0.22
1.99
0.689 0.26
1.71
1.03 0.28
1.55
0 0.56 1.45
1.38 0.30 1
2.07 0.34
1.31
3.45 0.38
1.15
5.17 0.42
1.04
6.89 0.44
1.00
Static equivalent radial load
Por＝0.6Fr＋0.5Fa
When Por＜Fr use Por＝Fr
Abutment and fillet
dimensions
mm
Mass
kg
Da
ras
open type
min
max3）
max
max
(approx.)
12
14
14
13.5
16
17
24
26
31
0.3
0.6
0.6
0.019
0.031
0.051
14
16
17
16
17.5
18.5
26
28
32
0.3
0.6
1
0.021
0.036
0.058
17
19
20
19
20.5
23
30
31
37
0.3
0.6
1
0.029
0.043
0.079
19
21
22
21
23
25
33
36
42
0.3
0.6
1
0.037
0.062
0.11
24
25
26.5
26
28
28.5
38
42
45.5
0.6
1
1
0.066
0.101
0.139
29
30
31.5
30.5
32
35
43
47
55.5
0.6
1
1
0.075
0.122
0.223
35
35
36.5
37
39
43
50
57
65.5
1
1
1
0.11
0.191
0.334
40
41.5
43
42
45
47
57
65.5
72
1
1
1.5
0.148
0.277
0.44
46.5
48
51
54
73.5
82
1
1.5
0.352
0.609
51.5
53
55.5
61.5
78.5
92
1
1.5
0.391
0.80
da
3）This dimension applies to sealed and shielded bearings.
B-29
●Miniature and Extra Small Bearings
Open type
Shielded type
Shielded type with snap ring
1. Design features and special characteristics
The dimensional range of miniature and extra small ball
bearings is given in Table 1. Boundary dimensions for both
metric and inch systems are in accordance with the
internationally specified ISO and ANSI/ABMA standards. The
most widely used sealed and shielded type ball bearings
have a 1–2 mm wider width dimension than open type
bearings.
The main variations of these bearings are shown in Table
2. Bearings with snap rings, which simplify the bearing
housing construction and design, have also been serialized
and are listed in dimension tables. Among the most generally
used sealed and shielded bearings are standard ZZ and ZZA
type which incorporate non-contact steel shield plates.
Diagram 1 also shows non-contact type rubber sealed LLB
and resin sealed SSA type bearings, and the contact-type
rubber sealed LLU bearing.
Table 1 Dimensional range
Bearing
Dimensional range
Miniature ball bearings
Nominal outer diameter D＜9mm
Extra small
ball bearings
Nominal bore diameter d＜10mm
Nominal outer diameter D≧9mm
Rubber sealed
(non-contact type)
LLB
Rubber sealed
(contact type)
LLU
Resin sealed
(non-contact type)
SSA
Diagram 1.
Table 2 Main types and construction
Standard type code
Type
Open type
Shielded type
Construction
Metric series
6
BC
6 X X ZZ
W 6 X X ZZ
WBC X X X ZZ
Flange-attached type code
Inch series
Construction
Metric series
Inch series
R
FL6
FLBC
FLR
RA X X ZZ
FL 6 X X X ZZ
FLW 6 X X X ZZ
FLWBC X X ZZ
FLRA X X ZZ
Note: 1. Representative type codes are shown. For further details, please refer to dimension tables.
2. May change to ZA or SA for shielded type bearings, according to the bearing number.
B-31
●Miniature and Extra Small Bearings
2. Standard cage types
3. Dimensional and rotational accuracy
Pressed cage are standard for these bearings. However,
molded resin cage are used for some bearings depending on
the application.
The accuracy of miniature and extra small ball bearings
complies with JIS standards. Accuracy standards are listed
in the Bearings Tolerances clause on page A-35. Flange
accuracies are listed in Table 3.
Table 3 Tolerance and tolerance values for outer ring flange
Accuracy class
Outer diameter
dimensional
tolerance
∆D1S or ∆D2S
Upper Lower
Class 0
Class 6
ISO standard
Class 5
Class 4
＊
(see table below)
Class 2
Units
Outer ring
surface runout
for rear surface
SD1
Max.
Back face
axial runout
Width dimension
tolerance
Width
unevenness
Sea1
Max.
∆C1S or ∆C2S
Upper Lower
VC1S or VC2S
Max.
―
―
―
―
8
11
4
7
1.5
31
4
1 Nominal outer diameter, 18 mm or less.
＊
Units
Flange nominal
outer diameter
D1 or D2
mm
over
incl.
μm
Outer diameter
dimensional tolerance
∆D1S or ∆D2S
Upper
Lower
―
10
＋220
−36
10
18
＋270
−43
18
30
＋330
−52
30
50
＋390
−62
μm
B-32
Identical to same
bearing's inner ring
VBS
Identical to same
bearing's inner
ring VBS
5
2.5
1.5
●Miniature and Extra Small Bearings
4. Radial internal clearance
Radial internal clearance values should be applied as
listed in the table regarding the Bearing Internal Clearance
and Preload clause on page A-58.
However, for miniature and extra small bearings, the radial
clearance values for high precision bearings given in Table 4
are applied in many cases.
For more specific selection information, please refer to the
NTN Miniature and Extra Small Ball Bearings Catalog, or
contact NTN Engineering.
Table 4 Radial internal clearance for high precision bearings
MIL Standard
Code
Internal
clearance
Tight
C2S
Min.
Max.
0 5
Units
Standard
CNS
Min.
Max.
3 8
CNM
Min.
Max.
5
10
CNL
Min.
Max.
8 13
Loose
C3S
Min.
Max.
10 15
Note: 1. These standards are specified in accordance with MIL B-23063. However, NTN codes are shown.
2. Clearance values do not include compensation for measuring load.
B-33
C3M
Min.
Max.
13 20
μm
Extra Loose
C3L
Min.
Max.
20 28
● Miniature and Extra Small Ball Bearings
Metric series
B
B
B1
B1
C1
B1
C2
r
r
r
r
φD
φd
φD
Open type
With single shield
(Z)
With double shield
(ZZ)
φdφD1
Open type
with flange
(FL)
φD2
With flanged outer ring
and single shield
(FL…Z)
d 1.5 ∼ 5mm
Boundary dimensions
Basic load ratings
dynamic
static dynamic
static
N
kgf
mm
1）
s min
Factor
Limiting speeds
min-1
fo
grease
oil
3.00
5.00
9.00
13.6
13.3
12.3
88 000
79 000
71 000
100 000
93 000
84 000
11.0
17.0
17.0
28.0
28.0
40.0
39.0
4.00
5.00
5.00
9.00
9.00
12.0
13.0
14.8
13.3
13.3
12.8
12.8
11.9
12.4
83 000
74 000
74 000
67 000
67 000
59 000
62 000
98 000
87 000
87 000
79 000
79 000
70 000
73 000
59.0
73.0
96.0
96.0
152
174
16.0
21.0
29.0
29.0
44.0
56.0
6.00
7.50
10.0
10.0
16.0
18.0
15.0
14.2
13.8
13.8
13.2
11.5
70 000
65 000
59 000
59 000
56 000
56 000
82 000
76 000
70 000
70 000
66 000
66 000
242
390
560
560
635
635
640
94.0
130
180
180
219
219
224
25.0
40.0
57.0
57.0
65.0
65.0
65.0
9.50
13.0
18.0
18.0
22.0
22.0
23.0
14.7
13.0
11.9
11.9
12.4
12.4
12.7
60 000
58 000
54 000
54 000
50 000
50 000
50 000
71 000
68 000
63 000
63 000
59 000
59 000
58 000
0.08
0.08
0.15
0.15
0.15
0.2
0.2
0.3
222
395
640
650
715
970
1 310
1 760
88.0
140
224
235
276
360
490
680
23.0
40.0
65.0
66.0
73.0
99.0
134
179
9.00
14.0
23.0
24.0
28.0
36.0
50.0
69.0
15.3
13.9
12.7
13.3
13.7
12.8
12.4
12.4
54 000
52 000
49 000
46 000
45 000
43 000
42 000
37 000
63 000
61 000
57 000
55 000
52 000
51 000
49 000
44 000
0.08
0.15
0.15
217
500
715
91.0
211
276
22.0
51.0
73.0
9.50
21.0
28.0
15.8
14.6
13.7
49 000
46 000
45 000
57 000
55 000
52 000
d
D
B
B1
D1
D2
C1
C2
r
Cr
1.5
4
5
6
1.2
2
2.5
2
2.6
3
5
6.5
7.5
5
6.5
7.5
0.4
0.6
0.6
0.6
0.8
0.8
0.15
0.15
0.15
102
171
274
29.0
51.0
86.0
10.0
17.0
28.0
2
4
5
5
6
6
7
7
1.2
1.5
2
2.3
2.5
2.5
2.8
2
2.3
2.5
3
―
―
3.5
―
6.1
―
7.5
7.2
―
8.5
―
6.1
―
7.5
―
―
8.5
―
0.5
―
0.6
0.6
―
0.7
―
0.6
―
0.8
―
―
0.9
0.05
0.08
0.1
0.15
0.15
0.15
0.15
104
171
171
279
279
390
380
37.0
51.0
51.0
89.0
89.0
120
125
2.5
5
6
7
7
8
8
1.5
1.8
3
2.5
2.5
2.8
2.3
2.6
3
3.5
2.8
4
―
7.1
―
8.5
9.2
9.5
―
7.1
8.2
8.5
―
9.5
―
0.5
―
0.7
0.6
0.7
―
0.8
0.6
0.9
―
0.9
0.08
0.08
0.15
0.15
0.15
0.15
153
209
284
284
430
550
3
6
7
8
8
9
9
10
2
2
2.5
3
2.5
3
4
2.5
3
―
4
4
5
4
7.2
8.1
9.2
9.5
10.2
10.5
11.5
7.2
8.1
―
9.5
10.6
10.5
11.5
0.6
0.5
0.6
0.7
0.6
0.7
1
0.6
0.8
―
0.9
0.8
1
1
0.08
0.1
0.15
0.15
0.15
0.15
0.15
4
7
8
9
10
11
12
13
16
2
2
2.5
3
4
4
5
5
2.5
3
4
4
4
4
5
5
8.2
9.2
10.3
11.2
12.5
13.5
15
―
8.2
9.2
10.3
11.6
12.5
13.5
15
―
0.6
0.6
0.6
0.6
1
1
1
―
0.6
0.6
1
0.8
1
1
1
―
5
8
9
10
2
2.5
3
2.5
3
4
9.2
10.2
11.2
9.2
10.2
11.6
0.6
0.6
0.6
0.6
0.6
0.8
1）Smallest allowable dimension for chamfer dimension r.
B-34
Cor
Cr
Cor
● Miniature and Extra Small Ball Bearings
Dynamic equivalent radial load
Pr＝XFr＋YFa
Fa
Fa
fo・Fa
≦e
Fr
Fr ＞e
e
Cor
X Y X
Y
0.172 0.19
2.30
0.345 0.22
1.99
0.689 0.26
1.71
1.03 0.28
1.55
0 0.56 1.45
1.38 0.30 1
1.31
2.07 0.34
3.45 0.38
1.15
5.17 0.42
1.04
1.00
6.89 0.44
Static equivalent radial load
Por＝0.6Fr＋0.5Fa
B1
C2
ra
ra
ra
φD2
φda φda
φDa
With flanged outer ring
and double shield
(FL…ZZ)
When Por＜Fr use Por＝Fr
Bearing numbers
open
with single
shield
with double unsealed type
shield
with flange
Abutment and fillet dimensions
mm
with flanged OR and with flanged OR and
da
Da
ras
single shield
double shield
min
Mass (approx.)
g
unsealed type
max2）
max
max
open
with flange
68/1.5
69/1.5A
60/1.5
W68/1.5SA
W69/1.5ASA
W60/1.5ZA
SSA
SSA
ZZA
FL68/1.5
FL69/1.5A
FL60/1.5
FLW68/1.5SA
FLW69/1.5ASA
FLW60/1.5ZA
SSA
SSA
ZZA
2.3
2.7
2.7
2.4
2.9
3.0
3.2
3.8
4.8
0.05
0.15
0.15
0.07
0.18
0.35
0.09
0.24
0.42
672
682
BC2-5
692
BC2-6
BC2-7A
602
―
W682SA
WBC2-5SA
W692SA
―
―
W602ZA
―
SSA
SSA
SSA
―
―
ZZA
―
FL682
―
FL692
FLBC2-6
―
FL602
―
FLW682SA
―
FLW692SA
―
―
FLW602ZA
―
SSA
―
SSA
―
―
ZZA
2.5
2.8
2.8
3.2
3.2
3.2
3.2
2.6
2.9
2.9
3.3
3.3
3.6
3.7
3.5
4.2
4.2
4.8
4.8
5.8
5.8
0.05
0.08
0.10
0.15
0.15
0.15
0.15
0.06
0.13
0.16
0.31
0.32
0.44
0.54
―
0.17
―
0.38
0.38
―
0.64
67/2.5
68/2.5
―
69/2.5
BC2.5-8
60/2.5
W67/2.5ZA
W68/2.5ZA
WBC2.5-7ZA
W69/2.5SA
WBC2.5-8ZA
W60/2.5ZA
ZZA
ZZA
ZZA
SSA
ZZA
ZZA
―
FL68/2.5
―
FL69/2.5
FLBC2.5-8
FL60/2.5
―
FLW68/2.5ZA
FLWBC2.5-7ZA
FLW69/2.5SA
―
FLW60/2.5ZA
―
ZZA
ZZA
SSA
―
ZZA
3.1
3.1
3.7
3.7
3.7
3.7
3.3
3.6
4.0
4.0
4.3
4.1
4.4
4.8
5.8
5.8
6.8
6.8
0.08
0.08
0.15
0.15
0.15
0.15
0.11
0.22
0.63)
0.43
0.57
0.72
―
0.26
0.673)
0.53
0.65
0.83
673
683
BC3-8
693
BC3-9
603
623
WA673SA
W683ZA
―
W693Z
WBC3-9ZA
W603Z
623Z
SSA
ZZA
―
ZZ
ZZA
ZZ
ZZ
FL673
FL683
FLBC3-8
FL693
FLBC3-9
FL603
FL623
FLWA673SA
FLW683ZA
―
FLW693Z
FLAWBC3-9ZA
FLW603Z
FL623Z
SSA
ZZA
―
ZZ
ZZA
ZZ
ZZ
3.6
3.9
4.2
4.2
4.2
4.2
4.2
4.1
4.1
4.4
4.4
5.0
5.0
5.2
5.4
5.8
6.8
6.8
7.8
7.8
8.8
0.08
0.1
0.15
0.15
0.15
0.15
0.15
0.2
0.33
0.52
0.61
0.71
0.92
1.6
0.26
0.38
0.6
0.72
0.79
1
1.8
674A
BC4-8
684AX50
BC4-10
694
604
624
634
WA674ASA
WBC4-8Z
W684AX50Z
WBC4-10Z
694Z
604Z
624Z
634Z
SSA
ZZ
ZZ
ZZ
ZZ
ZZ
ZZ
ZZ
FL674A
FLBC4-8
FL684AX50
FLBC4-10
FL694
FL604
FL624
―
FLWA674ASA
FLWBC4-8Z
FLW684AX50Z
FLAWBC4-10Z
FL694Z
FL604Z
FL624Z
―
SSA
ZZ
ZZ
ZZ
ZZ
ZZ
ZZ
―
4.6
4.8
5.0
5.2
5.2
5.6
5.6
6
5.0
5.0
5.2
6.0
6.4
6.6
6.2
7.6
6.4
6.8
7.8
8.8
9.8
10.4
11.4
14
0.08
0.08
0.1
0.15
0.15
0.2
0.2
0.3
0.28
0.38
0.67
1
1.8
2.1
3.2
5.1
0.35
0.46
0.76
1.1
2
2.3
3.5
―
675
BC5-9
BC5-10
WA675Z
WBC5-9Z
WBC5-10Z
ZZ
ZZ
ZZ
FL675
FLBC5-9
FLBC5-10
FLWA675Z
FLWBC5-9Z
FLAWBC5-10Z
ZZ
ZZ
ZZ
5.6
5.2
6.2
6.0
6.1
6.4
7.4
7.8
8.8
0.08
0.15
0.15
0.32
0.55
0.88
0.4
0.63
0.97
2）This dimension applies to sealed and shielded bearings. 3）Values for double shielded bearings shown.
B-35
● Miniature and Extra Small Ball Bearings
B
B
B1
B1
C1
B1
C2
r
r
r
r
φD
φd
φD
Open type
With single shield
(Z)
With double shield
(ZZ)
φdφD1
Open type
with flange
(FL)
φD2
With flanged outer ring
and single shield
(FL…Z)
d 5 ∼ 9mm
Boundary dimensions
Basic load ratings
dynamic
static dynamic
static
N
kgf
mm
d
D
B
5
11
11
13
13
14
16
19
4
3
4
5
5
5
6
6
10
12
13
15
16
17
19
B1
1）
s min
Factor
Limiting speeds
min-1
Cr
Cor
fo
grease
oil
282
282
430
430
505
680
885
73.0
73.0
110
110
135
179
238
29.0
29.0
44.0
44.0
52.0
69.0
90.0
14.0
14.0
13.4
13.4
12.8
12.4
12.1
43 000
43 000
40 000
40 000
39 000
37 000
34 000
51 000
51 000
47 000
47 000
46 000
44 000
40 000
196
365
440
530
695
865
885
47.0
85.0
110
137
181
224
238
20.0
37.0
45.0
54.0
71.0
88.0
90.0
15.2
14.5
13.7
13.3
12.7
12.3
12.1
43 000
40 000
39 000
37 000
36 000
35 000
34 000
51 000
47 000
46 000
44 000
42 000
42 000
40 000
0.1
0.15
0.15
0.3
0.3
0.3
555
269
825
375
1 170
505
1 610
715
2 240
910
3 350 1 400
56.0
84.0
120
164
228
340
27.0
38.0
51.0
73.0
93.0
142
15.6
14.9
14.0
14.0
12.9
12.5
40 000
38 000
37 000
35 000
34 000
32 000
47 000
45 000
44 000
41 000
40 000
37 000
0.8
0.8
1.1
1.5
1.5
―
0.1
0.15
0.2
0.3
0.3
0.3
515
252
820
385
1 610
715
1 990
865
3 350 1 400
4 000 1 590
52.0
84.0
164
202
340
410
26.0
39.0
73.0
88.0
142
162
15.9
15.2
14.0
13.8
12.5
11.7
38 000
36 000
35 000
33 000
32 000
31 000
45 000
43 000
41 000
39 000
37 000
36 000
―
1.1
―
―
―
0.1
0.2
0.3
0.3
0.6
920
465
1 720
820
2 480 1 090
3 400 1 450
4 550 1 960
94.0
176
253
345
465
48.0
83.0
111
148
200
15.5
14.4
13.5
12.9
12.4
36 000
33 000
32 000
31 000
30 000
42 000
39 000
38 000
36 000
35 000
D1
D2
C1
C2
r
Cr
4
5
4
5
5
5
6
―
12.5
15
―
16
18
―
12.6
12.5
15.2
15
16
18
―
―
0.8
1
―
1
1
―
0.8
1
1
1
1
1
―
0.15
0.15
0.2
0.2
0.2
0.3
0.3
715
715
1 080
1 080
1 330
1 760
2 340
2.5
3
3.5
5
6
6
6
3
4
5
5
6
6
6
11.2
13.2
15
17
―
19
22
11.2
13.6
15
17
―
19
22
0.6
0.6
1.0
1.2
―
1.2
1.5
0.6
0.8
1.1
1.2
―
1.2
1.5
0.1
0.15
0.15
0.2
0.2
0.3
0.3
465
830
1 080
1 350
1 770
2 190
2 340
7
11
13
14
17
19
22
2.5
3
3.5
5
6
7
3
4
5
5
6
7
12.2
14.2
16
19
―
―
12.2
14.6
16
19
―
―
0.6
0.6
1
1.2
―
―
0.6
0.8
1.1
1.2
―
―
8
12
14
16
19
22
24
2.5
3.5
4
6
7
8
3.5
4
5
6
7
8
13.2
15.6
18
22
25
―
13.6
15.6
18
22
25
―
0.6
0.8
1
1.5
1.5
―
9
14
17
20
24
26
3
4
6
7
8
4.5
5
6
7
8
―
19
―
―
―
―
19
―
―
―
―
1
―
―
―
1）Smallest allowable dimension for chamfer dimension r.
B-36
Cor
● Miniature and Extra Small Ball Bearings
Dynamic equivalent radial load
Pr＝XFr＋YFa
Fa
Fa
fo・Fa
≦e
Fr
Fr ＞e
e
Cor
X Y X
Y
0.172 0.19
2.30
0.345 0.22
1.99
0.689 0.26
1.71
1.03 0.28
1.55
0 0.56 1.45
1.38 0.30 1
1.31
2.07 0.34
3.45 0.38
1.15
5.17 0.42
1.04
1.00
6.89 0.44
Static equivalent radial load
Por＝0.6Fr＋0.5Fa
B1
C2
ra
ra
ra
φD2
φda φda
φDa
With flanged outer ring
and double shield
(FL…ZZ)
When Por＜Fr use Por＝Fr
Bearing numbers
open
with single
shield
with double unsealed type
shield
with flange
WBC5-11Z
W685Z
695Z
WBC5-13Z
605Z
625Z
635Z
ZZ
ZZ
ZZ
ZZ
ZZ
ZZ
ZZ
676A
BC6-12
686
696
BC6-16A
606
626
WA676AZ
WBC6-12Z
W686Z
696Z
BC6-16AZ
606Z
626Z
677
BC7-13
687A
697
607
627
Abutment and fillet dimensions
mm
with flanged OR and with flanged OR and
da
Da
ras
max2）
single shield
double shield
min
―
FL685
FL695
―
FL605
FL625
―
FLWBC5-11Z
FLW685Z
FL695Z
FLWBC5-13Z
FL605Z
FL625Z
―
ZZ
ZZ
ZZ
ZZ
ZZ
ZZ
―
6.2
6.2
6.6
6.6
6.6
7
7
6.8
6.8
6.9
6.9
7.4
7.6
9.5
ZZ
ZZ
ZZ
ZZ
ZZ
ZZ
ZZ
FL676A
FLBC6-12
FL686
FL696
―
FL606
FL626
FLWA676AZ
FLAWBC6-12Z
FLW686Z
FL696Z
―
FL606Z
FL626Z
ZZ
ZZ
ZZ
ZZ
―
ZZ
ZZ
6.6
7.2
7.0
7.6
7.6
8
8
WA677Z
WBC7-13Z
W687AZ
697Z
607Z
627Z
ZZ
ZZ
ZZ
ZZ
ZZ
ZZ
FL677
FLBC7-13
FL687A
FL697
―
―
FLWA677Z
FLAWBC7-13Z
FLW687AZ
FL697Z
―
―
ZZ
ZZ
ZZ
ZZ
―
―
678A
BC8-14
688A
698
608
628
W678AZ
WBC8-14Z
W688AZ
698Z
608Z
628Z
ZZ
ZZ
ZZ
ZZ
ZZ
ZZ
FL678A
FLBC8-14
FL688A
FL698
FL608
―
FLAW678AZ
FLWBC8-14Z
FLW688AZ
FL698Z
FL608Z
―
679
689
699
609
629X50
W679Z
W689Z
699Z
609Z
629X50Z
ZZ
ZZ
ZZ
ZZ
ZZ
―
FL689
−
−
−
―
FLW689Z
−
−
−
−
685
695
−
605
625
635
max
open
with flange
9.8
9.8
11.4
11.4
12.4
14
17
0.2
0.15
0.2
0.2
0.2
0.3
0.3
1.8
1.1
2.4
3.43)
3.5
4.8
8
2
1.3
2.7
3.73)
3.9
5.2
―
6.7
7.9
7.2
7.8
8.0
8.6
9.5
9.2
10.8
11.8
13.4
14.4
15
17
0.1
0.15
0.15
0.2
0.2
0.3
0.3
0.65
1.3
1.9
3.8
5.2
6
8.1
0.74
1.4
2.2
4.3
―
6.5
9.2
7.8
8.2
8.2
9
9
9
8.1
8.9
8.7
10.0
10.4
12.2
10.2
11.8
12.8
15
17
20
0.1
0.67
0.15
1.4
0.15
2.1
0.3
5.2
0.3
8
0.3
13
0.77
1.5
2.4
5.7
―
―
ZZ
ZZ
ZZ
ZZ
ZZ
―
8.8
9.2
9.6
10
10
10
9.1
9.5
10.0
10.6
12.2
12.1
11.2
12.8
14.4
17
20
22
0.1
0.75
0.15
1.8
0.2
3.1
0.3
7.3
0.3
12
0.3
17
0.86
1.9
3.5
8.4
13
―
―
ZZ
−
−
−
9.8
10.6
11
11
13
10.4
10.7
11.6
13.1
13.9
13.2
15.4
18
22
22
0.1
0.2
0.3
0.3
0.3
―
3.6
―
―
―
2）This dimension applies to sealed and shielded bearings. 3）Values for double shielded bearings shown.
B-37
Mass (approx.)
g
unsealed type
max
1.4
3.2
8.2
14
20
● Miniature and Extra Small Ball Bearings
Inch series
B
B
B1
B1
C1
B1
C2
r
r
r
r
φD
φd
φD
Open type
With single shield
(Z)
With double shield
(ZZ)
φd φD1
Open type
with flange
(FL)
φD1
With flanged outer ring
and single shield
(FL…Z)
d 1.984 ∼
Boundary dimensions
Basic load ratings
Factor
dynamic static dynamic static
N
kgf
mm
1）
Limiting speeds
min-1
fo
grease
oil
9
12.8
67 000
79 000
13
44
4.5
16
14.8
13.2
73 000
56 000
85 000
66 000
96.0
29
180
57
224
65
224
65
395
117
10
18
23
23
40
13.7
11.9
12.7
12.7
11.7
59 000
54 000
49 000
49 000
43 000
70 000
63 000
58 000
58 000
51 000
335
133
34
14
14.8
51 000
60 000
0.08
0.08
0.3
0.3
395
710
1 310
1 310
143
268
490
490
40
72
134
134
15
27
50
50
14.2
13.3
12.4
12.4
49 000
46 000
41 000
41 000
58 000
55 000
48 000
48 000
0.91
1.14
1.07
―
0.08
0.13
0.3
0.41
210
830
1 480
2 340
94.0
21
370
84
615
151
885
238
9.5
38
63
90
16.4
14.7
13.6
12.1
43 000
39 000
36 000
34 000
51 000
46 000
43 000
40 000
1.57
0.41
3 300 1 400
142
12.7
31 000
37 000
d
D
B
B1
D1
C1
C2
1.984
6.35
2.38
3.571
7.52
0.58
0.79
2.380
4.762
7.938
1.588
2.779
2.38
3.571
5.94
9.12
0.46
0.58
3.175
6.35
7.938
9.525
9.525
12.7
2.38
2.779
2.779
3.967
4.366
2.779
3.571
3.571
3.967
4.366
7.52
9.12
10.72
11.18
―
3.967
7.938
2.779
3.175
4.762
7.938
9.525
12.7
12.7
2.779
3.175
3.967
4.978
6.350
9.525
12.7
15.875
19.05
9.525
22.225
rs min
Cr
Cor
Cr
0.08
279
89.0
28
0.79
0.79
0.08
0.13
124
430
42.0
152
0.58
0.58
0.53
0.76
―
0.79
0.79
0.79
0.76
―
0.08
0.08
0.13
0.3
0.3
284
560
640
640
1 150
9.12
0.58
0.91
0.08
3.175
3.175
―
4.978
9.12
10.72
―
14.35
0.58
0.58
―
1.07
0.91
0.79
―
1.07
3.175
3.175
4.978
―
3.175
4.762
4.978
7.142
10.72
13.89
17.53
―
0.58
0.58
1.07
―
―
7.142
24.61
―
1）Smallest allowable dimension for chamfer dimension r.
B-38
340
Cor
● Miniature and Extra Small Ball Bearings
Dynamic equivalent radial load
Pr＝XFr＋YFa
Fa
Fa
fo・Fa
≦e
Fr
Fr ＞e
e
Cor
X Y X
Y
0.172 0.19
2.30
0.345 0.22
1.99
0.689 0.26
1.71
1.03 0.28
1.55
0 0.56 1.45
1.38 0.30 1
1.31
2.07 0.34
3.45 0.38
1.15
5.17 0.42
1.04
1.00
6.89 0.44
Static equivalent radial load
Por＝0.6Fr＋0.5Fa
B1
C2
ra
ra
ra
φD1
φda φda
Da
With flanged outer ring
and double shield
(FL…ZZ)
When Por＜Fr use Por＝Fr
Bearing numbers
open
with single
with double unsealed type
Abutment and fillet dimensions
mm
with flanged OR and with flanged OR and
da
Da
ras
Mass (approx.)
g
unsealed type
double shield
min
max2）
max
max
open
with flange
FLRA1-4ZA
ZZA
2.8
3.3
5.5
0.08
0.35
0.41
FLR133
FLR1-5
FLRA133ZA
FLRA1-5ZA
ZZA
ZZA
2.9
3.2
3.1
4.3
4
7.1
0.08
0.1
0.12
0.69
0.16
0.76
ZZA
ZZ
ZZA
ZZA
ZZ
FLR144
FLR2-5
FLR2-6
FLR2
―
FLRA144ZA
FLRA2-5Z
FLRA2-6ZA
FLRA2ZA
―
ZZA
ZZ
ZZA
ZZA
―
3.9
4
4
4.8
4.8
4.0
4.4
5.2
5.2
5.4
5.5
7
8.7
7.8
11
0.08
0.08
0.1
0.3
0.3
0.27
0.61
0.88
1.3
2.5
0.33
0.68
0.96
1.5
―
RA155ZA
ZZA
FLR155
FLRA155ZA
ZZA
4.8
5.3
7
0.08
0.54
0.61
R156
R166
R3
RA3
RA156Z
R166Z
―
RA3Z
ZZ
ZZ
―
ZZ
FLR156
FLR166
―
FLRA3
FLRA156Z
FLRA166Z
―
FLRA3Z
ZZ
ZZ
―
ZZ
5.5
5.6
6.4
6.0
5.6
5.9
7.2
6.4
7
8.7
11
11
0.08
0.08
0.3
0.3
0.44
0.8
2.2
2.4
0.51
0.89
―
2.7
R168A
R188
R4
―
R168AZ
RA188ZA
R4Z
RA4Z
AZZ
ZZA
ZZ
ZZ
―
FLR188
FLR4
―
FLRA168AZ
FLRA188ZA
FLR4Z
―
ZZ
ZZA
ZZ
―
7.1
7.2
8
8.4
7.3
8.2
8.6
9.5
8.7
11.8
14.2
17
0.08
0.1
0.3
0.4
0.6
1.6
4.4
112）
―
R6Z
ZZ
―
FLR6Z
ZZ
11.5
11.9
20.2
0.4
143）
shield
shield
with flange
R1-4
RA1-4ZA
ZZA
FLR1-4
R133
R1-5
RA133ZA
RA1-5ZA
ZZA
ZZA
R144
R2-5
R2-6
R2
RA2
RA144ZA
RA2-5Z
RA2-6ZA
RA2ZA
RA2Z
R155
single shield
2）This dimension applies to sealed and shielded bearings. 3）Values for double shielded bearings shown.
B-39
0.69
1.7
4.8
―
153）
● Miniature and Extra Small Ball Bearings
With Snap Ring Grooves,
Snap Rings
a
f
b
rN
r
ro
ro
r
φD φD1
φD2
φd
B
Snap ring groove
Shielded type
(ZZ)
Snap ring
Shielded type
(ZZ)
d 5 ∼ 12mm
Boundary dimensions
dynamic
mm
Basic load ratings
static dynamic static
N
kgf
Limiting speeds
Bearing numbers
min-1
rNa
d
D
B
rs min1）
min
Cr
Cor
Cr
Cor
fo
grease
oil
5
13
14
4
5
0.2
0.2
0.1
0.2
1 080
1 330
430
505
110
135
44
52
13.4
12.8
40 000
39 000
47 000
46 000
6
12
13
15
19
4
5
5
6
0.15
0.15
0.2
0.3
0.1
0.1
0.2
0.3
640
1 080
1 350
2 340
365
440
530
885
65
110
137
238
37
45
54
90
14.5
13.7
13.3
12.1
40 000
39 000
37 000
34 000
47 000
46 000
44 000
40 000
8
16
22
5
7
0.2
0.3
0.1
0.4
1 260
3 350
585
1 400
128
340
60
142
14.6
12.5
35 000
32 000
10
26
8
0.3
0.3
4 550
1 960
465
200
12.4
12
28
8
0.3
0.3
5 100
2 390
520
204
13.2
1）Smallest allowable dimension for chamfer dimension r.
Note: " ＊ " mark indicates stainless steel is used.
B-40
with snap ring groove
shielded type
SC559ZZN
SC571ZZN
＊ F-SC6A06ZZ1N
with snap ring
shielded type
ZZNR
ZZNR
SC6A04ZZN
SC6A17ZZN
SC669ZZN
ZZ1NR
ZZNR
ZZNR
ZZNR
41 000
37 000
SC890ZZN
SC850ZZN
ZZNR
ZZNR
29 000
34 000
SC0039ZZN
ZZNR
26 000
30 000
SC0142ZZN
ZZNR
● Miniature and Extra Small Ball Bearings
CY
Dynamic equivalent radial load
Pr＝XFr＋YFa
Fa
Fa
fo・Fa
≦e
Fr
Fr ＞e
e
Cor
X Y X
Y
0.172 0.19
2.30
0.345 0.22
1.99
0.689 0.26
1.71
1.03 0.28
1.55
0 0.56 1.45
1.38 0.30 1
1.31
2.07 0.34
3.45 0.38
1.15
5.17 0.42
1.04
1.00
6.89 0.44
Static equivalent radial load
Por＝0.6Fr＋0.5Fa
CZ
rNa
ra
ra
φDX φDa
φda
When Por＜Fr use Por＝Fr
Snap ring groove dimensions
mm
Snap ring dimensions
mm
Abutment and fillet dimensions
mm
Mass
kg
D1
a
b
ro
D2
f
Da
DX
CY
CZ
ras
rNas with snap ring
max
max
min
max
max
max
min
max
max
(approx.)
max
min
max
max
da
(approx.)
12.15
13.03
0.88
1.28
0.55
0.65
0.2
0.06
15.2
16.13
0.55
0.54
6.6
6.6
6.9
7.4
11.4
12.4
15.9
16.9
1.2
1.6
0.6
0.6
0.2
0.2
0.1
0.2
0.002
0.004
11.15
12.15
14.03
17.9
0.78
1.08
1.03
0.93
0.60
0.55
0.65
0.80
0.02
0.2
0.06
0.2
14.2
15.2
17.2
22.0
0.55
0.55
0.60
0.70
7.2
7.0
7.6
8.0
7.9
7.2
7.8
9.5
10.8
11.8
13.4
17.0
14.9
15.9
17.9
22.8
1.1
1.4
1.4
1.4
0.6
0.6
0.7
0.7
0.15
0.15
0.2
0.3
0.1
0.1
0.2
0.3
0.001
0.002
0.004
0.008
14.95
20.8
0.53
2.35
0.65
0.80
0.05
0.2
18.2
24.8
0.54
0.70
9.6
10.0
10.0
12.7
14.4
20
18.9
25.5
0.9
2.8
0.6
0.7
0.2
0.3
0.1
0.4
0.003
0.013
24.5
2.20
0.90
0.3
28.8
0.85
12
13.5
24
29.5
2.8
0.9
0.3
0.3
0.02
26.44
2.20
0.90
0.3
32.7
0.85
14
16
26
33.4
2.8
0.9
0.3
0.3
0.022
B-41
●Angular Contact Ball Bearings
Angular contact ball bearing
High speed use angular
contact ball bearing
Ultra high speed use angular
contact ball bearing
Four-point contact ball
bearing
1. Design features and special characteristics
Double row angular contact
ball bearing
Contact angle
1.1 Angular contact ball bearing
Angular contact ball bearings are non-separable bearings
which have a certain contact angle in the radial direction
relative to the straight line that runs through the point where
each ball makes contact with the inner and outer rings (see
Diagram 1). Table 1 gives contact angle and contact angle
symbol.
In addition to radial loads, single direction axial loads can
also be accommodated by angular contact ball bearings.
Furthermore, since an axial load is generated from a radial
force, these bearings are generally used in pairs facing each
other. Standard type, high speed use type and ultra high speed
varieties of angular contact ball bearings are available through
NTN, and there are also many duplex varieties. A bearing
accuracy of JIS Class 5 or higher is applied to duplex type
angular contact ball bearings, and in many cases they are
given a preload, in compliance with standard preload levels,
before being used in an application. Table 2 shows information
concerning angular contact ball bearings, and Table 3 shows
similar information for duplex angular contact ball bearings.
Diagram 1.
Table 1 Contact angle and contact angle codes
Contact angle
15˚
Code
C
30˚
A1
40˚
B
1 Contact angle symbol A is omitted.
Table 2 Angular contact ball bearing types and characteristics
Type
Design
Characteristics
Standard
type
¡Available in bearing series 79, 70, 72, 72B, 73, and 73B.
¡Contact angles: 30˚and 40˚ (with B) available.
¡Standard bearing cage type differs depending on bearing no. (Refer to Table 4)
High speed
use
¡Available in bearing series 78C, 79C, 70C, 72C, and 73C.
¡Contact angles: 15˚
¡All bearing accuracies JIS Class 5 or higher.
¡Standard bearing cage type differs depending on bearing no. (Refer to Table 4)
Ultra high speed use
BNT type
HSB type
¡Available in bearing series HSB9C, HSB0C, BNT0, and BNT2; all boundary dimensions agree with JIS
series dimensions.
¡Contact angles: 15˚; HSB type HSB9 and HSB0: 15˚and 30˚.
¡All bearing accuracies JIS Class 5 or higher.
¡BNT type internal design can be altered; suitable for higher speed applications than high speed use bearings.
¡HSB series bearings have smaller diameter of balls than high speed use type bearings, so benefit by less
torque for high precision, high speed applications.
¡The inner ring bore diameter and outer ring inner diameter of the HSB series have a ground undercut on
one side enabling easy oil flow.
¡For even higher speed applications, there is a bearing in this series equipped with ceramic ball bearings.
¡For standard cage types refer to Table 4; molded resin cages are also available for some varieties.
B-43
●Angular Contact Ball Bearings
Table 3 Duplex angular contact ball bearings ― types and characteristics
Duplex type
Back-to-back
duplex
(DB)
Face-to face
duplex
(DF)
Characteristics
¡Can accommodate radial loads and axial loads in either direction.
¡Has a large distanceRbetween the acting load center of the bearing, and therefore a large
momentary force load capacity.
¡Allowable misalignment angle is small.
r
r
¡Can accommodate radial loads and axial loads in either direction.
¡Has a smaller distanceRbetween the acting load center of the bearing, and therefore a smaller
momentary force load capacity.
¡Has a larger allowable misalignment angle than back-to-back duplex type.
¡Can accommodate radial loads and single direction axial loads.
¡Axial loads are received by both bearings as a set, and therefore heavy axial loads can be
accommodated.
Tandem duplex
(DT)
Note: 1. Duplex bearings are manufactured in a set to specified clearance and preload values, therefore they must be assembled together with
identically numbered bearings and not mixed with other arrangements.
2. Triplex arrangements of angular contact bearings are also available. Consult NTN Engineering for details.
loads, axial loads in either direction, and have a high
capacity for momentary loads as well.
As shown in Diagram 3, sealed and shielded type double
row angular contact ball bearings are also available.
Standard loads vary from those of open type bearings.
1.2 Four-point angular contact ball bearings
Four-point angular contact ball bearings have a contact
angle of 30˚ and inner rings which are separated in half. As
shown in Diagram 2, when the inner and outer rings receive
a radial load the ball bearings contact the inner and outer
rings at four points. This construction enables a single
bearing to accommodate axial loads from either direction,
and when generally under a simple axial load or heavy axial
load, the bearing functions in reliance on two contact points
like ordinary bearings.
■Flush ground
"Flush ground" is the name given to the finishing
method shown in Diagram 4 where the offset of the
front and back faces of the bearing are ground to the
same value. By doing this, a stated clearance or
preload value can be achieved by using bearings with
identical codes for these values, in other words by
combining either DB or DF series bearings. DT series
bearings can also be used in various arrangements to
achieve uniform load distribution.
All BNT type bearings are flush ground, but other
angular contact ball bearing series are not. If it is
necessary to flush grind any of these other bearings,
please consult NTN Engineering.
Diagram 2.
Offset B
Back face
Front face
1.3 Double row angular contact ball bearings
The structure of double row angular contact ball bearings
is designed by arranging two single row angular contact
bearings back-to-back in duplex (DB) to form one united
bearing with a contact angle of 25˚.
These bearings are capable of accommodating radial
Open type
Shielded type
(ZZ)
Offset A
A=B
Diagram 4.
Non-contact sealed type
(LLM)
Diagram 3.
B-44
Contact sealed type
(LLD)
●Angular Contact Ball Bearings
2. Standard cage types
Table 4 lists the standard cage types for angular contact
ball bearings. For high speed use angular contact ball
bearings, molded resin cages and machined cages are
widely used.
Table 4 Standard cages for angular contact ball bearings
Type
Standard
High
speed
use
Ultra high
speed use
Bearing series
Molded resin cage
Pressed cage
―
―
7200 ∼7222
7300 ∼7322
7200B∼7222B
7300B∼7322B
Machined cage
7914 ∼ 7960
7026 ∼ 7040
7224 ∼ 7240
7324 ∼ 7340
7224B ∼ 7240B
7324B ∼ 7340B
79
70
72
73
72B
73B
7904∼7913
7000∼7024
―
―
―
―
78C
79C
70C
72C
73C
―
7904C∼7913C
7000C∼7024C
7200C∼7220C
7303C∼7312C
―
―
―
―
―
7805C ∼ 7834C
7914C ∼ 7934C
∼ 7040C
7026C 7221C ∼ 7240C
7300C ∼ 7302C
7313C ∼ 7340C
―
―
―
HSB010C∼HSB032C
―
―
―
―
BNT000 ∼ BNT009
BNT200 ∼ BNT209
HSB910C ∼ HSB934C
HSB034C
BNT0
BNT2
HSB9C
HSB0C
4-point
contact
QJ2
QJ3
―
―
―
―
QJ208 ∼ QJ224
QJ306 ∼ QJ324
Double
row
52
53
―
―
5200S∼5217S
5302S∼5314S
―
―
Note: 1. Standard cages for 5S-BNT and 5S-HSB type bearings are the same as cages for BNT and HSB type bearings.
2. Due to the material characteristics of molded resin cages, use at application temperatures in excess of
120˚C is not possible.
B-45
● Single and Duplex Angular Contact Ball Bearings
2B
B
r
ra
r1
r1
ra
r
φD
a
a
Single
φda
φDa
φd
a
a
Back-to-back
arrangement
(DB)
Tandem
arrangement
(DT)
Face-to-face
arrangement
(DF)
d 10 ∼ 30mm
Boundary dimensions
Basic load ratings
dynamic static
dynamic static
kN
kgf
d
D
B
mm
2B
10
26
30
30
35
35
8
9
9
11
11
16
18
18
22
22
0.3
0.6
0.6
0.6
0.6
0.15
0.3
0.3
0.3
0.3
12
28
32
32
37
37
8
10
10
12
12
16
20
20
24
24
0.3
0.6
0.6
1
1
15
32
35
35
42
42
9
11
11
13
13
18
22
22
26
26
17
35
40
40
47
47
10
12
12
14
14
20
42
47
47
52
52
rs min3） rls min3）
Limiting speeds1）
Bearing2） Load
numbers centerkg
min-1
Mass
mm
kg
single
a
(approx.)
grease
oil
212
279
257
500
470
29 000
28 000
24 000
26 000
22 000
39 000
37 000
32 000
34 000
29 000
7000
7200
7200B
7300
7300B
9
10.5
13
12
15
0.023
0.029
0.029
0.04
0.041
515
775
775
1 140
1 080
251
405
405
535
505
26 000
25 000
21 000
23 000
19 000
35 000
33 000
28 000
30 000
26 000
7001
7201
7201B
7301
7301B
10
11.5
14
13
16.5
0.025
0.035
0.036
0.044
0.045
3.15
4.70
4.35
7.20
6.65
590
925
855
1 370
1 270
320
480
445
735
680
23 000
22 000
18 000
19 000
17 000
31 000
29 000
25 000
26 000
22 000
7002
7202
7202B
7302
7302B
11.5
12.5
16
15
19
0.035
0.046
0.046
0.055
0.057
7.15
12.0
11.0
15.9
14.8
3.85
6.60
6.10
8.65
8.00
730
1 220
1 120
1 630
1 510
390
675
625
880
820
21 000
19 000
17 000
18 000
15 000
28 000
26 000
22 000
24 000
20 000
7003
7203
7203B
7303
7303B
12.5
14.5
18
16
20.5
0.046
0.064
0.066
0.107
0.109
0.3
0.6
0.6
0.6
0.6
9.70
14.5
13.3
18.7
17.3
5.60
8.40
7.70
10.4
9.65
990
1 480
1 360
1 910
1 770
570
855
785
1 060
985
19 000
17 000
15 000
16 000
13 000
25 000
23 000
20 000
21 000
18 000
7004
7204
7204B
7304
7304B
15
17
21.5
18
22.5
0.08
0.1
0.102
0.138
0.141
0.3
0.6
1
1
1.1
1.1
0.15
0.3
0.6
0.6
0.6
0.6
7.15
10.7
16.2
14.8
26.4
24.4
4.95
6.85
10.3
9.40
15.8
14.6
730
1 100
1 650
1 510
2 690
2 490
505
700
1 050
960
1 610
1 490
17 000
16 000
14 000
12 000
13 000
11 000
22 000
21 000
19 000
16 000
17 000
15 000
7905
7005
7205
7205B
7305
7305B
14
16.5
19
24
21
27
0.05
0.093
0.125
0.129
0.23
0.234
0.3
1
0.15
0.6
7.55
13.9
5.75
9.45
770
1 410
585
965
14 000
13 000
19 000
18 000
7906
7006
15.5
19
0.058
0.135
Cr
Cor
Cr
4.65
5.45
5.00
10.1
9.50
2.07
2.74
2.52
4.95
4.60
470
555
510
1 030
970
0.15
0.3
0.3
0.6
0.6
5.05
7.60
7.00
11.2
10.5
2.46
3.95
3.65
5.25
4.95
0.3
0.6
0.6
1
1
0.15
0.3
0.3
0.6
0.6
5.80
9.05
8.35
13.5
12.5
20
24
24
28
28
0.3
0.6
0.6
1
1
0.15
0.3
0.3
0.6
0.6
12
14
14
15
15
24
28
28
30
30
0.6
1
1
1.1
1.1
25
42
47
52
52
62
62
9
12
15
15
17
17
18
24
30
30
34
34
30
47
55
9
13
18
26
Cor
1）This value achieved with machined cages; when pressed cages are used, 80% of this value is acceptable.
2）Bearing numbers appended with the code "B" have a contact angle of 40˚; bearings with this code have a contact angle of 30˚.
3）Smallest allowable dimension for chamfer dimension r.
B-46
● Single and Duplex Angular Contact Ball Bearings
r1 a
Dynamic equivalent radial load
Pr＝XFr＋YFa
ra
Contact
angle
ra
r1a
φDb
φDa
φda
Single, DT
DB, DF
Fa / Fr≦e Fa / Fr＞e Fa / Fr≦e Fa / Fr＞e
X
Y
X
Y
X
Y
X
Y
e
30˚ 0.80
40˚ 1.14
φdb
1
1
0
0
0.39 0.76
0.35 0.57
1
1
0.78 0.63 1.24
0.55 0.57 0.93
Static equivalent radial load
Por＝Xo Fr＋Yo Fa
Contact
angle
30˚
40˚
Single, DT
Xo
Yo
0.5
0.5
DB, DF
Xo
0.33
0.26
1
1
Yo
0.66
0.52
For single and DT arrangement,
When Por＜Fr use Por＝Fr
dynamic
Basic load ratings
static
dynamic static
(duplex)
(duplex)
kN
kgf
Cr
Cor
Cr
Limiting speeds1）
Bearing numbers2）
Abutment and fillet dimensions
(duplex)
min-1
mm
da
db
Da
Db
ras
r1as
Cor
grease
oil
DB
DF
DT
min
min
max
max
max
max
7.50
8.80
8.10
16.5
15.4
4.15
5.45
5.05
9.85
9.20
765
900
825
1 680
1 570
425
560
515
1 000
940
23 000
22 000
19 000
20 000
18 000
31 000
30 000
26 000
27 000
24 000
DB
DB
DB
DB
DB
DF
DF
DF
DF
DF
DT
DT
DT
DT
DT
12.5
14.5
14.5
14.5
14.5
12.5
12.5
12.5
12.5
12.5
23.5
25.5
25.5
30.5
30.5
24.8
27.5
27.5
32.5
32.5
0.3
0.6
0.6
0.6
0.6
0.15
0.3
0.3
0.3
0.3
8.20
12.3
11.4
18.2
17.1
4.90
7.95
7.35
10.5
9.90
840
1 260
1 160
1 850
1 750
500
810
750
1 070
1 010
21 000
20 000
17 000
18 000
16 000
28 000
26 000
23 000
24 000
21 000
DB
DB
DB
DB
DB
DF
DF
DF
DF
DF
DT
DT
DT
DT
DT
14.5
16.5
16.5
17.5
17.5
14.5
14.5
14.5
16.5
16.5
25.5
27.5
27.5
31.5
31.5
26.8
29.5
29.5
32.5
32.5
0.3
0.6
0.6
1
1
0.15
0.3
0.3
0.6
0.6
9.40
14.7
13.6
21.9
20.3
6.30
9.40
8.70
14.4
13.3
960
1 500
1 390
2 230
2 070
640
960
885
1 470
1 360
18 000
17 000
15 000
15 000
13 000
24 000
23 000
20 000
21 000
18 000
DB
DB
DB
DB
DB
DF
DF
DF
DF
DF
DT
DT
DT
DT
DT
17.5
19.5
19.5
20.5
20.5
17.5
17.5
17.5
19.5
19.5
29.5
30.5
30.5
36.5
36.5
30.8
32.5
32.5
37.5
37.5
0.3
0.6
0.6
1
1
0.15
0.3
0.3
0.6
0.6
11.6
19.4
17.9
25.9
24.0
7.65
13.2
12.2
17.3
16.0
1 190
1 980
1 830
2 640
2 450
780
1 350
1 250
1 760
1 640
17 000
15 000
13 000
14 000
12 000
22 000
21 000
18 000
19 000
16 000
DB
DB
DB
DB
DB
DF
DF
DF
DF
DF
DT
DT
DT
DT
DT
19.5
21.5
21.5
22.5
22.5
19.5
19.5
19.5
21.5
21.5
32.5
35.5
35.5
41.5
41.5
33.8
37.5
37.5
42.5
42.5
0.3
0.6
0.6
1
1
0.15
0.3
0.3
0.6
0.6
15.8
23.6
21.6
30.5
28.2
11.2
16.8
15.4
20.8
19.3
1 610
2 400
2 200
3 100
2 870
1 140
1 710
1 570
2 130
1 970
15 000
14 000
12 000
12 000
11 000
20 000
18 000
16 000
17 000
14 000
DB
DB
DB
DB
DB
DF
DF
DF
DF
DF
DT
DT
DT
DT
DT
24.5
25.5
25.5
27
27
24.5
24.5
24.5
24.5
24.5
37.5
41.5
41.5
45
45
39.5
42.5
42.5
47.5
47.5
0.6
1
1
1
1
0.3
0.6
0.6
0.6
0.6
11.6
17.5
26.3
24.0
43.0
39.5
9.95
13.7
20.6
18.8
31.5
29.3
1 180
1 780
2 690
2 450
4 400
4 050
1 010
1 400
2 100
1 920
3 250
2 980
13 000
12 000
11 000
10 000
10 000
9 100
18 000
17 000
15 000
13 000
14 000
12 000
DB
DB
DB
DB
DB
DB
DF
DF
DF
DF
DF
DF
DT
DT
DT
DT
DT
DT
27.5
29.5
30.5
30.5
32
32
27.5
29.5
29.5
29.5
29.5
29.5
39.5
42.5
46.5
46.5
55
55
40.8
44.5
47.5
47.5
57.5
57.5
0.3
0.6
1
1
1
1
0.15
0.3
0.6
0.6
0.6
0.6
12.3
22.5
11.5
18.9
1 250
2 300
1 170
1 930
12 000
11 000
15 000
14 000
DB
DB
DF
DF
DT
DT
32.5
35.5
32.5
35.5
44.5
49.5
45.8
50.5
0.3
1
0.15
0.6
Note: For bearing series 79 and 70, inner rings are constructed with groove abutments on both sides. Therefore, the inner ring chamfer dimension r1 is identical to dimension r.
Furthermore, the radius r1a of the shaft corner roundness is likewise identical to ra.
B-47
● Single and Duplex Angular Contact Ball Bearings
2B
B
r
ra
r1
r1
ra
r
φD
a
a
Single
φda
φDa
φd
a
a
Back-to-back
arrangement
(DB)
Tandem
arrangement
(DT)
Face-to-face
arrangement
(DF)
d 30 ∼ 55mm
Boundary dimensions
d
D
B
mm
2B
30
62
62
72
72
16
16
19
19
32
32
38
38
1
1
1.1
1.1
35
55
62
72
72
80
80
10
14
17
17
21
21
20
28
34
34
42
42
40
62
68
80
80
90
90
12
15
18
18
23
23
45
68
75
85
85
100
100
Basic load ratings
dynamic static
dynamic static
kN
kgf
rs min3） rls min3）
Limiting speeds1）
Bearing2） Load
numbers centerkg
min-1
Mass
mm
kg
single
a
(approx.)
Cr
Cor
grease
oil
14.8
13.5
22.3
20.5
2 300
2 090
3 450
3 150
1 510
1 380
2 280
2 090
12 000
11 000
11 000
9 600
16 000
14 000
15 000
13 000
7206
7206B
7306
7306B
21.5
27.5
24.5
31.5
0.193
0.197
0.345
0.352
12.0
17.5
29.7
27.1
40.0
36.5
8.85
12.6
20.1
18.4
26.3
24.2
1 220
1 790
3 050
2 760
4 050
3 750
905
1 280
2 050
1 870
2 680
2 470
13 000
12 000
11 000
9 300
9 800
8 400
17 000
16 000
14 000
12 000
13 000
11 000
7907
7007
7207
7207B
7307
7307B
18
21
24
31
27
34.5
0.088
0.18
0.281
0.287
0.462
0.469
0.3
0.6
0.6
0.6
1
1
12.7
18.8
35.5
32.0
49.0
45.0
10.2
14.6
25.1
23.0
33.0
30.5
1 290
1 910
3 600
3 250
5 000
4 550
1 040
1 490
2 560
2 340
3 350
3 100
11 000
10 000
9 600
8 300
8 600
7 400
15 000
14 000
13 000
11 000
12 000
9 900
7908
7008
7208
7208B
7308
7308B
20.5
23
26.5
34
30.5
39
0.13
0.222
0.355
0.375
0.625
0.636
0.6
1
1.1
1.1
1.5
1.5
0.3
0.6
0.6
0.6
1
1
15.7
22.3
39.5
36.0
63.5
58.5
12.9
17.7
28.7
26.2
44.0
40.0
1 600
2 270
4 050
3 650
6 450
5 950
1 310
1 800
2 930
2 680
4 500
4 100
10 000
9 500
8 700
7 400
7 800
6 600
14 000
13 000
12 000
9 900
10 000
8 900
7909
7009
7209
7209B
7309
7309B
22.5
25.5
28.5
37
33.5
43.0
0.15
0.282
0.404
0.41
0.837
0.854
24
32
40
40
54
54
0.6
1
1.1
1.1
2
2
0.3
0.6
0.6
0.6
1
1
16.6
23.7
41.5
37.5
74.5
68.0
14.5
20.1
31.5
28.6
52.5
48.0
1 690
2 410
4 200
3 800
7 600
6 950
1 470
2 050
3 200
2 920
5 350
4 950
9 200
8 600
7 900
6 700
7 100
6 000
12 000
11 000
10 000
9 000
9 400
8 100
7910
7010
7210
7210B
7310
7310B
23.5
27
30
39.5
36.5
47
0.157
0.306
0.457
0.466
1.09
1.11
26
36
42
42
58
58
1
1.1
1.5
1.5
2
2
0.6
0.6
1
1
1
1
17.3
31.0
51.0
46.5
86.0
79.0
16.1
26.3
39.5
36.0
61.5
56.5
1 770
3 150
5 200
4 700
8 750
8 050
1 640
2 680
4 050
3 700
6 300
5 800
8 400
7 900
7 100
6 100
6 400
5 500
11 000
11 000
9 500
8 200
8 600
7 300
7911
7011
7211
7211B
7311
7311B
26
30
33
43
40
52
0.214
0.447
0.6
0.612
1.39
1.42
Cr
Cor
0.6
0.6
0.6
0.6
22.5
20.5
33.5
31.0
0.6
1
1.1
1.1
1.5
1.5
0.3
0.6
0.6
0.6
1
1
24
30
36
36
46
46
0.6
1
1.1
1.1
1.5
1.5
12
16
19
19
25
25
24
32
38
38
50
50
50
72
80
90
90
110
110
12
16
20
20
27
27
55
80
90
100
100
120
120
13
18
21
21
29
29
1）This value achieved with machined cages; when pressed cages are used, 80% of this value is acceptable.
2）Bearing numbers appended with the code "B" have a contact angle of 40˚; bearings with this code have a contact angle of 30˚.
3）Smallest allowable dimension for chamfer dimension r or rl.
B-48
● Single and Duplex Angular Contact Ball Bearings
r1 a
Dynamic equivalent radial load
Pr＝XFr＋YFa
ra
Contact
angle
ra
r1a
φDb
φDa
φda
Single, DT
DB, DF
Fa / Fr≦e Fa / Fr＞e Fa / Fr≦e Fa / Fr＞e
X
Y
X
Y
X
Y
X
Y
e
30˚ 0.80
40˚ 1.14
φdb
1
1
0
0
0.39 0.76
0.35 0.57
1
1
0.78 0.63 1.24
0.55 0.57 0.93
Static equivalent radial load
Por＝Xo Fr＋Yo Fa
Contact
angle
30˚
40˚
Single, DT
Xo
Yo
0.5
0.5
DB, DF
Xo
0.33
0.26
1
1
Yo
0.66
0.52
For single and DT arrangement,
When Por＜Fr use Por＝Fr
dynamic
Basic load ratings
static
dynamic static
(duplex)
(duplex)
kN
kgf
Limiting speeds1）
Bearing numbers2）
Abutment and fillet dimensions
(duplex)
min-1
mm
Db
ras
r1as
oil
DB
DF
DT
min
min
max
max
max
max
9 800
8 600
8 900
7 700
13 000
11 000
12 000
10 000
DB
DB
DB
DB
DF
DF
DF
DF
DT
DT
DT
DT
35.5
35.5
37
37
34.5
34.5
34.5
34.5
56.5
56.5
65
65
57.5
57.5
67.5
67.5
1
1
1
1
0.6
0.6
0.6
0.6
1 810
2 560
4 100
3 750
5 350
4 950
10 000
9 400
8 600
7 500
7 800
6 800
13 000
13 000
11 000
10 000
10 000
9 000
DB
DB
DB
DB
DB
DB
DF
DF
DF
DF
DF
DF
DT
DT
DT
DT
DT
DT
39.5
40.5
42
42
43.5
43.5
39.5
40.5
39.5
39.5
40.5
40.5
50.5
56.5
65
65
71.5
71.5
52.5
57.5
67.5
67.5
74.5
74.5
0.6
1
1
1
1.5
1.5
0.3
0.6
0.6
0.6
1
1
2 100
3 100
5 850
5 300
8 100
7 400
2 080
2 970
5 150
4 700
6 700
6 200
9 000
8 300
7 700
6 700
6 900
6 000
12 000
11 000
10 000
8 900
9 200
8 000
DB
DB
DB
DB
DB
DB
DF
DF
DF
DF
DF
DF
DT
DT
DT
DT
DT
DT
44.5
45.5
47
47
48.5
48.5
44.5
45.5
44.5
44.5
45.5
45.5
57.5
62.5
73.0
73
81.5
81.5
59.5
63.5
75.5
75.5
84.5
84.5
0.6
1
1
1
1.5
1.5
0.3
0.6
0.6
0.6
1
1
25.7
35.5
57.5
52.5
88.0
80.5
2 600
3 700
6 550
5 950
10 500
9 650
2 620
3 600
5 850
5 350
8 950
8 250
8 100
7 500
6 900
6 000
6 200
5 400
11 000
10 000
9 200
8 000
8 200
7 200
DB
DB
DB
DB
DB
DB
DF
DF
DF
DF
DF
DF
DT
DT
DT
DT
DT
DT
49.5
50.5
52
52
53.5
53.5
49.5
50.5
49.5
49.5
50.5
50.5
63.5
69.5
78
78
91.5
91.5
65.5
70.5
80.5
80.5
94.5
94.5
0.6
1
1
1
1.5
1.5
0.3
0.6
0.6
0.6
1
1
27.0
38.5
67.0
60.5
121
111
28.9
40.0
63.0
57.0
105
96.0
2 750
3 900
6 850
6 200
12 300
11 300
2 950
4 100
6 400
5 850
10 700
9 850
7 300
6 800
6 300
5 500
5 600
4 900
9 800
9 100
8 300
7 300
7 500
6 500
DB
DB
DB
DB
DB
DB
DF
DF
DF
DF
DF
DF
DT
DT
DT
DT
DT
DT
54.5
55.5
57
57
60
60
54.5
55.5
54.5
54.5
55.5
55.5
67.5 69.5
74.5 75.5
83
85.5
83
85.5
100
104.5
100
104.5
0.6
1
1
1
2
2
0.3
0.6
0.6
0.6
1
1
28.1
50.5
83.0
75.0
139
128
32.0
52.5
79.0
72.0
123
113
2 870
5 150
8 450
7 650
14 200
13 000
3 300
5 350
8 050
7 350
12 600
11 600
6 700
6 300
5 700
5 000
5 100
4 500
8 900
8 400
7 600
6 600
6 800
5 900
DB
DB
DB
DB
DB
DB
DF
DF
DF
DF
DF
DF
DT
DT
DT
DT
DT
DT
60.5
62
63.5
63.5
65
65
60.5
62
60.5
60.5
60.5
60.5
74.5 75.5
83
85.5
91.5 94.5
91.5 94.5
110
114.5
110
114.5
1
1
1.5
1.5
2
2
0.6
0.6
1
1
1
1
Cr
Cor
Cr
Cor
36.5
33.5
54.5
50.0
29.6
27.1
44.5
41.0
3 750
3 400
5 550
5 100
3 000
2 760
4 550
4 200
19.5
28.5
48.5
44.0
65.0
59.5
17.7
25.1
40.0
36.5
52.5
48.5
1 990
2 900
4 900
4 500
6 600
6 100
20.6
30.5
57.5
52.0
79.5
73.0
20.4
29.2
50.5
46.0
66.0
60.5
25.5
36.0
64.5
58.5
103
95.0
grease
da
db
Da
Note: For bearing series 79 and 70, inner rings are constructed with groove abutments on both sides. Therefore, the inner ring chamfer dimension r1 is identical to dimension r.
Furthermore, the radius r1a of the shaft corner roundness is likewise identical to ra.
B-49
● Single and Duplex Angular Contact Ball Bearings
2B
B
r
ra
r1
r1
ra
r
φD
a
a
Single
φda
φDa
φd
a
a
Back-to-back
arrangement
(DB)
Tandem
arrangement
(DT)
Face-to-face
arrangement
(DF)
d 60 ∼ 85mm
Boundary dimensions
D
B
mm
2B
60
85
95
110
110
130
130
13
18
22
22
31
31
26
36
44
44
62
62
1
1.1
1.5
1.5
2.1
2.1
65
90
100
120
120
140
140
13
18
23
23
33
33
26
36
46
46
66
66
70
100
110
125
125
150
150
16
20
24
24
35
35
75
105
115
130
130
160
160
d
Basic load ratings
dynamic static
dynamic static
kN
kgf
rs min3） rls min3）
Limiting speeds1）
Bearing2） Load
numbers centerkg
min-1
Mass
mm
kg
single
a
(approx.)
Cor
grease
oil
1 840
3 250
6 300
5 700
10 000
9 200
1 780
2 860
5 000
4 550
7 300
6 700
7 800
7 200
6 600
5 700
5 900
5 100
10 000
9 600
8 800
7 600
7 900
6 800
7912
7012
7212
7212B
7312
7312B
27.5
31.5
36
47.5
43
56
0.23
0.478
0.765
0.78
1.74
1.77
18.0
31.5
58.0
52.5
82.0
75.0
1 860
3 450
7 150
6 500
11 300
10 400
1 840
3 200
5 900
5 350
8 350
7 700
7 200
6 700
6 100
5 200
5 500
4 700
9 600
9 000
8 100
7 000
7 300
6 300
7913
7013
7213
7213B
7313
7313B
29
33
38
50.5
46
59.5
0.245
0.509
0.962
0.981
2.11
2.15
26.2
39.5
63.5
58.0
93.5
86
2 670
4 350
7 800
7 050
12 700
11 700
2 670
4 000
6 500
5 900
9 550
8 800
6 700
6 200
5 700
4 900
5 100
4 400
9 000
8 300
7 600
6 500
6 800
5 800
7914
7014
7214
7214B
7314
7314B
32.5
36
40
53
49.5
63.5
0.397
0.705
1.09
1.11
2.56
2.61
26.50 27.1
43.50 41.5
79.0
68.5
71.5
62.0
136
106
125
97.5
2 710 2 760
4 450 4 250
8 050 7 000
7 300 6 350
13 800 10 800
12 700 9 900
6 300
5 800
5 300
4 500
4 800
4 100
8 400
7 800
7 100
6 000
6 300
5 400
7915
7015
7215
7215B
7315
7315B
34
37.5
42.5
56
52.5
68
0.42
0.745
1.17
1.19
3.07
3.13
0.6
0.6
1
1
1.1
1.1
26.9
53.5
89.0
80.5
147
135
28.0
50.5
76.0
69.5
119
109
2 740 2 860
5 450 5 150
9 100 7 750
8 200 7 050
15 000 12 100
13 800 11 100
5 900
5 500
5 000
4 300
4 500
3 800
7 800
7 300
6 600
5 700
5 900
5 100
7916
7016
7216
7216B
7316
7316B
35.5
40.5
45
59
55.5
72
0.444
0.994
1.39
1.42
3.65
3.72
0.6
0.6
1
1
36.0
54.5
99.5
90.0
38.0
53.5
88.5
80.5
3 700
5 600
10 100
9 150
5 500
5 100
4 700
4 000
7 400
6 900
6 200
5 300
7917
7017
7217
7217B
38.5
42
48
63.5
0.628
1.04
1.78
1.82
Cr
Cor
0.6
0.6
1
1
1.1
1.1
18.1
32.0
61.5
56.0
98.0
90.0
17.4
28.1
49.0
44.5
71.5
66.0
1
1.1
1.5
1.5
2.1
2.1
0.6
0.6
1
1
1.1
1.1
18.3
33.5
70.5
63.5
111
102
32
40
48
48
70
70
1
1.1
1.5
1.5
2.1
2.1
0.6
0.6
1
1
1.1
1.1
26.2
42.5
76.5
69.0
125
114
16
20
25
25
37
37
32
40
50
50
74
74
1
1.1
1.5
1.5
2.1
2.1
0.6
0.6
1
1
1.1
1.1
80
110
125
140
140
170
170
16
22
26
26
39
39
32
44
52
52
78
78
1
1.1
2
2
2.1
2.1
85
120
130
150
150
18
22
28
28
36
44
56
56
1.1
1.1
2
2
Cr
3 850
5 450
9 050
8 200
1）This value achieved with machined cages; when pressed cages are used, 80% of this value is acceptable.
2）Bearing numbers appended with the code "B" have a contact angle of 40˚; bearings with this code have a contact angle of 30˚.
3）Smallest allowable dimension for chamfer dimension r or rl.
B-50
● Single and Duplex Angular Contact Ball Bearings
r1 a
Dynamic equivalent radial load
Pr＝XFr＋YFa
ra
Contact
angle
ra
r1a
φDb
φDa
φda
Single, DT
DB, DF
Fa / Fr≦e Fa / Fr＞e Fa / Fr≦e Fa / Fr＞e
X
Y
X
Y
X
Y
X
Y
e
30˚ 0.80
40˚ 1.14
φdb
1
1
0
0
0.39 0.76
0.35 0.57
1
1
0.78 0.63 1.24
0.55 0.57 0.93
Static equivalent radial load
Por＝Xo Fr＋Yo Fa
Contact
angle
30˚
40˚
Single, DT
Xo
Yo
0.5
0.5
DB, DF
Xo
0.33
0.26
1
1
Yo
0.66
0.52
For single and DT arrangement,
When Por＜Fr use Por＝Fr
dynamic
Cr
Basic load ratings
static
dynamic static
(duplex)
(duplex)
kN
kgf
Cor
Cr
Cor
Limiting speeds1）
Bearing numbers2）
Abutment and fillet dimensions
(duplex)
min-1
grease
mm
da
db
Da
Db
ras
r1as
oil
DB
DF
DT
min
min
max
max
max
max
29.3
52.0
100
91.0
159
146
35.0
56.0
98.0
89.0
143
132
2 990
5 300
10 200
9 250
16 200
14 900
3 550
5 700
10 000
9 100
14 600
13 400
6 200
5 800
5 300
4 600
4 700
4 100
8 300
7 700
7 000
6 100
6 300
5 500
DB
DB
DB
DB
DB
DB
DF
DF
DF
DF
DF
DF
DT
DT
DT
DT
DT
DT
65.5
67
68.5
68.5
72
72
65.5
67
65.5
65.5
67
67
79.5
88
101.5
101.5
118
118
80.5
90.5
104.5
104.5
123
123
1
1
1.5
1.5
2
2
0.6
0.6
1
1
1
1
29.7
55.0
114
103
180
166
36.0
62.5
116
105
164
151
3 050
5 600
11 600
10 500
18 400
16 900
3 700
6 400
11 800
10 700
16 700
15 400
5 700
5 400
4 900
4 200
4 400
3 800
7 600
7 100
6 500
5 600
5 800
5 100
DB
DB
DB
DB
DB
DB
DF
DF
DF
DF
DF
DF
DT
DT
DT
DT
DT
DT
70.5
72
73.5
73.5
77
77
70.5
72
70.5
70.5
72
72
84.5
93
111.5
111.5
128
128
85.5
95.5
114.5
114.5
133
133
1
1
1.5
1.5
2
2
0.6
0.6
1
1
1
1
42.5
69.5
124
112
203
186
52.5
78.5
127
116
187
172
4 350
7 050
12 600
11 500
20 700
19 000
5 350
8 050
13 000
11 800
19 100
17 600
5 300
5 000
4 500
3 900
4 100
3 500
7 100
6 600
6 000
5 200
5 400
4 700
DB
DB
DB
DB
DB
DB
DF
DF
DF
DF
DF
DF
DT
DT
DT
DT
DT
DT
75.5
77
78.5
78.5
82
82
75.5
77
75.5
75.5
77
77
94.5
103
116.5
116.5
138
138
95.5
105.5
119.5
119.5
143
143
1
1
1.5
1.5
2
2
0.6
0.6
1
1
1
1
43.0
71.0
128
116
221
202
54.0
83.5
137
124
212
195
4 400
7 250
13 100
11 800
22 500
20 600
5 500
8 500
14 000
12 700
21 600
19 800
5 000
4 600
4 200
3 700
3 800
3 300
6 700
6 200
5 600
4 900
5 000
4 400
DB
DB
DB
DB
DB
DB
DF
DF
DF
DF
DF
DF
DT
DT
DT
DT
DT
DT
80.5
82
83.5
83.5
87
87
80.5
82
80.5
80.5
82
82
99.5
108
121.5
121.5
148
148
100.5
110.5
124.5
124.5
153
153
1
1
1.5
1.5
2
2
0.6
0.6
1
1
1
1
43.5
86.5
145
131
239
219
56.0
101
152
139
238
218
4 450
8 850
14 700
13 300
24 400
22 300
5 700
10 300
15 500
14 100
24 200
22 300
4 700
4 400
3 900
3 400
3 500
3 100
6 200
5 800
5 300
4 600
4 700
4 100
DB
DB
DB
DB
DB
DB
DF
DF
DF
DF
DF
DF
DT
DT
DT
DT
DT
DT
85.5
87
90
90
92
92
85.5
87
85.5
85.5
87
87
104.5
118
130
130
158
158
105.5
120.5
134.5
134.5
163
163
1
1
2
2
2
2
0.6
0.6
1
1
1
1
59.0
89.0
162
146
76.0
107
177
161
6 000
9 050
16 500
14 900
7 750
10 900
18 100
16 400
4 400
4 100
3 700
3 200
5 900
5 500
5 000
4 300
DB
DB
DB
DB
DF
DF
DF
DF
DT
DT
DT
DT
92
92
95
95
92
92
90.5
90.5
113
123
140
140
115.5
125.5
144.5
144.5
1
1
2
2
0.6
0.6
1
1
Note: For bearing series 79 and 70, inner rings are constructed with groove abutments on both sides. Therefore, the inner ring chamfer dimension r1 is identical to dimension r.
Furthermore, the radius r1a of the shaft corner roundness is likewise identical to ra.
B-51
● Single and Duplex Angular Contact Ball Bearings
2B
B
r
ra
r1
r1
ra
r
φD
a
a
Single
φda
φDa
φd
a
a
Tandem
arrangement
(DT)
Face-to-face
arrangement
(DF)
Back-to-back
arrangement
(DB)
d 85 ∼ 120mm
Boundary dimensions
Basic load ratings
dynamic static
dynamic static
kN
kgf
D
B
mm
2B
85
180
180
41
41
82
82
3
3
1.1
1.1
159
146
133
122
90
125
140
160
160
190
190
18
24
30
30
43
43
36
48
60
60
86
86
1.1
1.5
2.0
2.0
3.0
3.0
0.6
1
1
1
1.1
1.1
36.0
65.0
118
107
171
156
95
130
145
170
170
200
200
18
24
32
32
45
45
36
48
64
64
90
90
1.1
1.5
2.1
2.1
3
3
0.6
1
1.1
1.1
1.1
1.1
100
140
150
180
180
215
215
20
24
34
34
47
47
40
48
68
68
94
94
1.1
1.5
2.1
2.1
3
3
105
145
160
190
190
225
225
20
26
36
36
49
49
40
52
72
72
98
98
110
150
170
200
200
240
240
20
28
38
38
50
50
120
165
22
d
rs min3） rls min3）
Limiting speeds1）
Bearing2） Load
numbers centerkg
min-1
Mass
mm
kg
single
a
(approx.)
grease
oil
16 200 13 500
14 800 12 400
4 200
3 600
5 600
4 800
7317
7317B
59
76
4.34
4.43
38.0
63.5
103
94.0
147
135
3 650 3 850
6 650 6 450
12 000 10 500
10 900 9 550
17 400 15 000
15 900 13 800
5 200
4 900
4 400
3 800
4 000
3 400
7 000
6 500
5 900
5 000
5 300
4 500
7918
7018
7218
7218B
7318
7318B
40
45
51
67.5
62
80.5
0.658
1.35
2.18
2.22
5.06
5.16
37.0
67.0
133
121
183
167
40.5
67.0
118
107
162
149
3 800
6 800
13 600
12 300
18 600
17 100
4 150
6 800
12 000
11 000
16 600
15 200
5 000
4 600
4 100
3 500
3 700
3 200
6 600
6 100
5 500
4 700
5 000
4 200
7919
7019
7219
7219B
7319
7319B
41.5
46.5
54.5
71.5
65
84.5
0.688
1.41
2.67
2.72
5.89
6
0.6
1
1.1
1.1
1.1
1.1
48.0
68.5
144
130
207
190
52.5
70.5
126
114
193
178
4 900
6 950
14 700
13 300
21 100
19 400
5 350
7 200
12 800
11 700
19 700
18 100
4 700
4 400
3 900
3 400
3 500
3 000
6 200
5 800
5 200
4 500
4 700
4 000
7920
7020
7220
7220B
7320
7320B
44.5
48
57.5
76
69
89.5
0.934
1.47
3.2
3.26
7.18
7.32
1.1
2
2.1
2.1
3
3
0.6
1
1.1
1.1
1.1
1.1
48.5
80.0
157
142
220
202
54.5
81.5
142
129
210
194
4 950
8 150
16 000
14 500
22 400
20 600
5 550
8 350
14 400
13 100
21 500
19 700
4 400
4 100
3 700
3 200
3 400
2 900
5 900
5 500
5 000
4 300
4 500
3 800
7921
7021
7221
7221B
7321
7321B
46
51.5
60.5
80
72
93.5
0.972
1.86
3.79
3.87
8.2
8.36
40
56
76
76
100
100
1.1
2
2.1
2.1
3
3
0.6
1
1.1
1.1
1.1
1.1
49.5
92.0
170
154
246
226
56.0
93.0
158
144
246
226
5 050
9 350
17 300
15 700
25 100
23 000
5 700
9 450
16 100
14 700
25 100
23 100
4 200
3 900
3 500
3 000
3 200
2 700
5 700
5 300
4 700
4 000
4 300
3 700
7922
7022
7222
7222B
7322
7322B
47.5
54.5
64
84
76
99
1.01
2.3
4.45
4.54
9.6
9.8
44
1.1
0.6
61.0
69.5
6 200
7 100
3 900
5 200
7924
52
1.66
Cr
Cor
Cr
Cor
1）This value achieved with machined cages; when pressed cages are used, 80% of this value is acceptable.
2）Bearing numbers appended with the code "B" have a contact angle of 40˚; bearings with this code have a contact angle of 30˚.
3）Smallest allowable dimension for chamfer dimension r or rl.
B-52
● Single and Duplex Angular Contact Ball Bearings
r1 a
Dynamic equivalent radial load
Pr＝XFr＋YFa
ra
Contact
angle
ra
r1a
φDb
φDa
φda
Single, DT
DB, DF
Fa / Fr≦e Fa / Fr＞e Fa / Fr≦e Fa / Fr＞e
X
Y
X
Y
X
Y
X
Y
e
30˚ 0.80
40˚ 1.14
φdb
1
1
0
0
0.39 0.76
0.35 0.57
1
1
0.78 0.63 1.24
0.55 0.57 0.93
Static equivalent radial load
Por＝Xo Fr＋Yo Fa
Contact
angle
30˚
40˚
Single, DT
Xo
Yo
0.5
0.5
DB, DF
Xo
0.33
0.26
1
1
Yo
0.66
0.52
For single and DT arrangement,
When Por＜Fr use Por＝Fr
dynamic
Cr
Basic load ratings
static
dynamic static
(duplex)
(duplex)
kN
kgf
Cor
Cr
Cor
Limiting speeds1）
Bearing numbers2）
Abutment and fillet dimensions
(duplex)
min-1
grease
mm
oil
DB
DF
DT
da
db
Da
Db
ras
r1as
min
min
max
max
max
max
258
236
265
244
26 300
24 100
27 000
24 900
3 300
2 900
4 500
3 900
DB
DB
DF
DF
DT
DT
99
99
92
92
166
166
173
173
2.5
2.5
1
1
58.0
106
191
173
277
254
75.5
127
206
188
294
270
5 900
10 800
19 500
17 700
28 300
25 900
7 700
12 900
21 000
19 100
30 000
27 600
4 200
3 900
3 500
3 100
3 200
2 700
5 500
5 200
4 700
4 100
4 200
3 700
DB
DB
DB
DB
DB
DB
DF
DF
DF
DF
DF
DF
DT
DT
DT
DT
DT
DT
97
98.5
100
100
104
104
97
98.5
95.5
95.5
97
97
118
131.5
150
150
176
176
120.5
134.5
154.5
154.5
183
183
1
1.5
2
2
2.5
2.5
0.6
1
1
1
1
1
60.5
109
217
196
297
272
81.5
134
236
215
325
298
6 150
11 100
22 100
20 000
30 500
27 700
8 300
13 600
24 100
21 900
33 000
30 500
3 900
3 700
3 300
2 900
3 000
2 600
5 300
4 900
4 400
3 800
3 900
3 400
DB
DB
DB
DB
DB
DB
DF
DF
DF
DF
DF
DF
DT
DT
DT
DT
DT
DT
102
103.5
107
107
109
109
102
103.5
102
102
102
102
123
136.5
158
158
186
186
125.5
139.5
163
163
193
193
1
1.5
2
2
2.5
2.5
0.6
1
1
1
1
1
78.0
111
233
212
335
310
105
141
251
229
385
355
7 950
11 300
23 800
21 600
34 500
31 500
10 700
14 400
25 600
23 300
39 500
36 000
3 700
3 500
3 100
2 700
2 800
2 400
5 000
4 600
4 200
3 600
3 700
3 300
DB
DB
DB
DB
DB
DB
DF
DF
DF
DF
DF
DF
DT
DT
DT
DT
DT
DT
107
108.5
112
112
114
114
107
108.5
107
107
107
107
133
141.5
168
168
201
201
135.5
144.5
173
173
208
208
1
1.5
2
2
2.5
2.5
0.6
1
1
1
1
1
79.0
130
254
231
355
330
109
163
283
258
420
385
8 050
13 300
25 900
23 500
36 500
33 500
11 100
16 700
28 900
26 300
43 000
39 500
3 500
3 300
3 000
2 600
2 700
2 300
4 700
4 400
4 000
3 500
3 600
3 100
DB
DB
DB
DB
DB
DB
DF
DF
DF
DF
DF
DF
DT
DT
DT
DT
DT
DT
112
115
117
117
119
119
112
115
112
112
112
112
138
150
178
178
211
211
140.5
154.5
183
183
218
218
1
2
2
2
2.5
2.5
0.6
1
1
1
1
1
80.0
149
276
250
400
365
112
186
315
289
490
455
8 150
15 200
28 100
25 500
41 000
37 500
11 400
18 900
32 500
29 400
50 000
46 000
3 400
3 100
2 800
2 500
2 600
2 200
4 500
4 200
3 800
3 300
3 400
3 000
DB
DB
DB
DB
DB
DB
DF
DF
DF
DF
DF
DF
DT
DT
DT
DT
DT
DT
117
120
122
122
124
124
117
120
117
117
117
117
143
160
188
188
226
226
145.5
164.5
193
193
233
233
1
2
2
2
2.5
2.5
0.6
1
1
1
1
1
99.0
139
10 100
14 200
3 100
4 100
DB
DF
DT
127
127
158
160.5
1
0.6
Note: For bearing series 79 and 70, inner rings are constructed with groove abutments on both sides. Therefore, the inner ring chamfer dimension r1 is identical to dimension r.
Furthermore, the radius r1a of the shaft corner roundness is likewise identical to ra.
B-53
● Single and Duplex Angular Contact Ball Bearings
2B
B
r
ra
r1
r
ra
r
φD
a
a
Single
φda
φDa
φd
a
a
Tandem
arrangement
(DT)
Face-to-face
arrangement
(DF)
Back-to-back
arrangement
(DB)
d 120 ∼ 170mm
Boundary dimensions
D
B
mm
2B
120
180
215
215
260
260
28
40
40
55
55
56
80
80
110
110
2
2.1
2.1
3
3
130
180
200
230
230
280
280
24
33
40
40
58
58
48
66
80
80
116
116
140
190
210
250
250
300
300
24
33
42
42
62
62
150
210
225
270
270
320
320
d
Basic load ratings
dynamic static
dynamic static
kN
kgf
rs min2） rls min2）
Limiting speeds
Bearing1） Load
numbers centerkg
min-1
Mass
mm
kg
single
a
(approx.)
grease
oil
10 000
18 100
16 500
25 700
23 600
3 600
3 200
2 800
2 900
2 500
4 800
4 300
3 700
3 900
3 300
7024
7224
7224B
7324
7324B
57.5
68.5
90.5
82.5
107
2.47
6.26
6.26
14.7
14.7
7 650
12 000
20 000
18 100
27 900
25 500
8 900
12 800
20 200
18 300
29 800
27 400
3 600
3 300
3 000
2 500
2 700
2 300
4 700
4 400
4 000
3 400
3 600
3 100
7926
7026
7226
7226B
7326
7326B
56.5
64
72
95.5
88
115
1.82
3.73
7.15
7.15
17.6
17.6
90.0
133
215
195
335
310
7 700
12 200
20 700
18 700
30 500
28 100
9 150
13 500
21 900
19 900
34 500
31 500
3 300
3 100
2 700
2 300
2 500
2 100
4 400
4 100
3 600
3 100
3 300
2 800
7928
7028
7228
7228B
7328
7328B
59.5
67
77.5
103
94.5
123
1.94
3.96
8.78
8.78
21.5
21.5
97.5
137
232
210
330
300
117
154
259
235
380
350
9 900
14 000
23 700
21 400
33 500
30 500
11 900
15 700
26 400
24 000
39 000
36 000
3 100
2 800
2 500
2 200
2 300
2 000
4 100
3 800
3 400
2 900
3 100
2 600
7930
7030
7230
7230B
7330
7330B
66
71.5
83
111
100
131
2.96
4.82
11
11
25.1
25.1
1
1.1
1.1
1.1
1.5
1.5
98.5
155
263
238
345
315
121
176
305
279
420
385
10 000
15 800
26 800
24 200
35 500
32 000
12 300
18 000
31 500
28 400
43 000
39 500
2 800
2 700
2 400
2 000
2 100
1 800
3 800
3 600
3 200
2 700
2 800
2 400
7932
7032
7232
7232B
7332
7332B
69
77
89
118
106
139
3.13
5.96
13.7
13.7
29.8
29.8
1
1.1
1.5
1.5
1.5
102
186
295
266
390
129
214
360
325
485
10 400
18 900
30 000
27 200
39 500
13 100
21 900
36 500
33 000
49 500
2 700
2 500
2 200
1 900
2 000
3 600
3 300
3 000
2 500
2 700
7934
7034
7234
7234B
7334
71.5
83
95.5
127
113
3.29
7.96
17
17
35.3
Cr
Cor
Cr
1
1.1
1.1
1.1
1.1
93.5
183
165
246
225
98.5
177
162
252
231
9 550
18 600
16 900
25 100
23 000
1.5
2
3
3
4
4
1
1
1.1
1.1
1.5
1.5
75.0
117
196
177
273
250
87.5
125
198
180
293
268
48
66
84
84
124
124
1.5
2
3
3
4
4
1
1
1.1
1.1
1.5
1.5
75.5
120
203
183
300
275
28
35
45
45
65
65
56
70
90
90
130
130
2
2.1
3
3
4
4
1
1.1
1.1
1.1
1.5
1.5
160
220
240
290
290
340
340
28
38
48
48
68
68
56
76
96
96
136
136
2
2.1
3
3
4
4
170
230
260
310
310
360
28
42
52
52
72
56
84
104
104
144
2
2.1
4
4
4
Cor
1）Bearing numbers appended with the code "B" have a contact angle of 40˚; bearings with this code have a contact angle of 30˚.
2）Smallest allowable dimension for chamfer dimension r or rl.
B-54
● Single and Duplex Angular Contact Ball Bearings
r1 a
Dynamic equivalent radial load
Pr＝XFr＋YFa
ra
Contact
angle
ra
r1a
φDb
φDa
φda
Single, DT
DB, DF
Fa / Fr≦e Fa / Fr＞e Fa / Fr≦e Fa / Fr＞e
X
Y
X
Y
X
Y
X
Y
e
30˚ 0.80
40˚ 1.14
φdb
1
1
0
0
0.39 0.76
0.35 0.57
1
1
0.78 0.63 1.24
0.55 0.57 0.93
Static equivalent radial load
Por＝Xo Fr＋Yo Fa
Contact
angle
30˚
40˚
Single, DT
Xo
Yo
0.5
0.5
0.33
0.26
DB, DF
Xo
Yo
0.66
0.52
1
1
For single and DT arrangement,
When Por＜Fr use Por＝Fr
dynamic
Cr
Basic load ratings
static
dynamic
Limiting speeds
static
(duplex)
(duplex)
kN
kgf
Cor
Bearing numbers1）
Abutment and fillet dimensions
(duplex)
min-1
Cr
Cor
grease
oil
DB
DF
DT
da
Da
mm
Db
ras
r1as
min
max
max
max
max
152
297
269
400
365
197
355
325
505
460
15 500
30 500
27 400
41 000
37 500
20 100
36 000
33 000
51 500
47 000
2 900
2 600
2 300
2 300
2 000
3 800
3 400
3 000
3 100
2 700
DB
DB
DB
DB
DB
DF
DF
DF
DF
DF
DT
DT
DT
DT
DT
130
132
132
134
134
170
203
203
246
246
174.5
208
208
253
253
2
2
2
2.5
2.5
1
1
1
1
1
121
191
320
288
445
405
175
251
395
360
585
535
12 400
19 400
32 500
29 400
45 500
41 500
17 800
25 600
40 500
36 500
59 500
54 500
2 800
2 600
2 400
2 100
2 100
1 900
3 800
3 500
3 100
2 700
2 800
2 500
DB
DB
DB
DB
DB
DB
DF
DF
DF
DF
DF
DF
DT
DT
DT
DT
DT
DT
138.5
140
144
144
148
148
171.5
190
216
216
262
262
174.5
194.5
223
223
271.5
271.5
1.5
2
2.5
2.5
3
3
1
1
1
1
1.5
1.5
123
194
330
297
490
445
180
265
430
390
670
615
12 500
19 800
33 500
30 500
50 000
45 500
18 300
27 000
44 000
40 000
68 500
63 000
2 600
2 400
2 200
1 900
2 000
1 700
3 500
3 300
2 900
2 500
2 600
2 300
DB
DB
DB
DB
DB
DB
DF
DF
DF
DF
DF
DF
DT
DT
DT
DT
DT
DT
148.5
150
154
154
158
158
181.5
200
236
236
282
282
184.5
204.5
243
243
291.5
291.5
1.5
2
2.5
2.5
3
3
1
1
1
1
1.5
1.5
158
222
375
340
535
490
234
305
515
470
765
700
16 100
22 700
38 500
34 500
54 500
50 000
23 900
31 500
53 000
48 000
78 000
71 500
2 400
2 300
2 000
1 800
1 800
1 600
3 300
3 000
2 700
2 400
2 400
2 100
DB
DB
DB
DB
DB
DB
DF
DF
DF
DF
DF
DF
DT
DT
DT
DT
DT
DT
160
162
164
164
168
168
200
213
256
256
302
302
204.5
218
263
263
311.5
311.5
2
2
2.5
2.5
3
3
1
1
1
1
1.5
1.5
160
252
425
385
565
515
241
355
615
555
845
770
16 300
25 700
43 500
39 500
57 500
52 500
24 600
36 000
62 500
57 000
86 000
79 000
2 300
2 100
1 900
1 600
1 700
1 500
3 000
2 800
2 500
2 200
2 300
2 000
DB
DB
DB
DB
DB
DB
DF
DF
DF
DF
DF
DF
DT
DT
DT
DT
DT
DT
170
172
174
174
178
178
210
228
276
276
322
322
214.5
233
283
283
331.5
331.5
2
2
2.5
2.5
3
3
1
1
1
1
1.5
1.5
165
300
480
435
630
257
430
715
650
970
16 900
31 000
49 000
44 000
64 500
26 200
43 500
73 000
66 500
99 000
2 100
2 000
1 800
1 500
1 600
2 800
2 600
2 400
2 100
2 100
DB
DB
DB
DB
DB
DF
DF
DF
DF
DF
DT
DT
DT
DT
DT
180
182
188
188
188
220
248
292
292
342
224.5
253
301.5
301.5
351.5
2
2
3
3
3
1
1
1.5
1.5
1.5
B-55
● Single and Duplex Angular Contact Ball Bearings
2B
B
r
ra
r1
r
ra
r
φD
a
a
Single
φda
φDa
φd
a
a
Tandem
arrangement
(DT)
Face-to-face
arrangement
(DF)
Back-to-back
arrangement
(DB)
d 170 ∼ 300mm
Boundary dimensions
Basic load ratings
dynamic static
dynamic static
kN
kgf
D
B
mm
2B
170
360
72
144
4
1.5
355
445
180
250
280
320
320
380
380
33
46
52
52
75
75
66
92
104
104
150
150
2
2.1
4
4
4
4
1
1.1
1.5
1.5
1.5
1.5
131
219
305
276
410
375
190
260
290
340
340
400
400
33
46
55
55
78
78
66
92
110
110
156
156
2
2.1
4
4
5
5
1
1.1
1.5
1.5
2
2
200
280
310
360
360
420
420
38
51
58
58
80
80
76
102
116
116
160
160
2.1
2.1
4
4
5
5
220
300
38
76
240
320
38
260
360
280
300
d
rs min2） rls min2）
Limiting speeds
Bearing1） Load
numbers centerkg
min-1
Mass
mm
kg
single
a
(approx.)
grease
oil
36 000 45 500
1 700
2 300
7334B
147
35.3
163
266
385
350
535
490
13 400
22 300
31 000
28 100
41 500
38 000
16 600
27 100
39 000
35 500
54 500
50 000
2 500
2 300
2 100
1 800
1 900
1 600
3 300
3 100
2 800
2 400
2 500
2 100
7936
7036
7236
7236B
7336
7336B
78.5
89.5
98
131
118
155
4.87
10.4
17.7
17.7
40.9
40.9
133
224
305
273
430
390
169
280
390
355
585
535
13 500
22 800
31 000
27 800
44 000
40 000
17 200
28 600
39 500
36 000
59 500
54 500
2 400
2 200
2 000
1 700
1 800
1 500
3 200
2 900
2 600
2 200
2 300
2 000
7938
7038
7238
7238B
7338
7338B
81.5
92.5
104
139
124
163
5.1
10.8
21.3
21.3
47
47
1.1
1.1
1.5
1.5
2
2
185
252
335
305
450
410
231
325
450
410
605
555
18 900
25 700
34 500
31 000
46 000
42 000
23 600
33 000
46 000
41 500
62 000
56 500
2 200
2 100
1 900
1 600
1 700
1 400
3 000
2 800
2 500
2 100
2 200
1 900
7940
7040
7240
7240B
7340
7340B
88.5
99
110
146
130
170
7.15
14
25.3
25.3
53.1
53.1
2.1
1.1
187
239
19 000 24 300
2 000
2 700
7944
94
7.74
76
2.1
1.1
193
255
19 600 26 000
1 800
2 400
7948
100
8.34
46
92
2.1
1.1
258
375
26 300 38 000
1 700
2 200
7952
112
14
380
46
92
2.1
1.1
261
385
26 600 39 500
1 500
2 100
7956
118
14.8
420
56
112
3
1.1
325
520
33 500 53 000
1 400
1 900
7960
132
23.7
Cr
Cor
Cr
Cor
1）Bearing numbers appended with the code "B" have a contact angle of 40˚; bearings with this code have a contact angle of 30˚.
2）Smallest allowable dimension for chamfer dimension r or rl.
B-56
● Single and Duplex Angular Contact Ball Bearings
r1 a
Dynamic equivalent radial load
Pr＝XFr＋YFa
ra
Contact
angle
ra
r1a
φDb
φDa
φda
Single, DT
DB, DF
Fa / Fr≦e Fa / Fr＞e Fa / Fr≦e Fa / Fr＞e
X
Y
X
Y
X
Y
X
Y
e
30˚ 0.80
40˚ 1.14
φdb
1
1
0
0
0.39 0.76
0.35 0.57
1
1
0.78 0.63 1.24
0.55 0.57 0.93
Static equivalent radial load
Por＝Xo Fr＋Yo Fa
Contact
angle
30˚
40˚
Single, DT
Xo
Yo
0.5
0.5
0.33
0.26
DB, DF
Xo
Yo
0.66
0.52
1
1
For single and DT arrangement,
When Por＜Fr use Por＝Fr
Basic load ratings
static
dynamic
dynamic
Cr
Limiting speeds
static
(duplex)
(duplex)
kN
kgf
Cor
Bearing numbers1）
Abutment and fillet dimensions
(duplex)
min-1
da
Da
mm
Db
ras
r1as
min
max
max
max
max
Cr
Cor
grease
oil
DB
DF
DT
59 000
90 500
1 400
1 800
DB
DF
DT
188
342
351.5
3
1.5
575
890
213
355
495
450
665
605
325
530
770
700
1 070
975
21 700 33 500
36 500 54 000
50 500 78 500
45 500 71 000
68 000 109 000
62 000 99 500
2 000
1 900
1 700
1 400
1 500
1 300
2 700
2 500
2 200
1 900
2 000
1 700
DB
DB
DB
DB
DB
DB
DF
DF
DF
DF
DF
DF
DT
DT
DT
DT
DT
DT
190
192
198
198
198
198
240
268
302
302
362
362
244.5
273
311.5
311.5
371.5
371.5
2
2
3
3
3
3
1
1
1.5
1.5
1.5
1.5
216
365
495
445
695
635
335
560
780
705
1 170
1 070
22 000 34 500
37 000 57 000
50 000 79 500
45 000 72 000
71 000 119 000
64 500 109 000
1 900
1 800
1 600
1 400
1 400
1 200
2 500
2 300
2 100
1 800
1 900
1 600
DB
DB
DB
DB
DB
DB
DF
DF
DF
DF
DF
DF
DT
DT
DT
DT
DT
DT
200
202
208
208
212
212
250
278
322
322
378
378
254.5
283
331.5
331.5
390
390
2
2
3
3
4
4
1
1
1.5
1.5
2
2
300
410
550
495
730
665
465
650
900
815
1 210
1 110
30 500 47 000
41 500 66 000
56 000 92 000
50 500 83 000
74 500 124 000
68 000 113 000
1 800
1 700
1 500
1 300
1 300
1 200
2 400
2 200
2 000
1 700
1 800
1 500
DB
DB
DB
DB
DB
DB
DF
DF
DF
DF
DF
DF
DT
DT
DT
DT
DT
DT
212
212
218
218
222
222
268
298
342
342
398
398
273
303
351.5
351.5
410
410
2
2
3
3
4
4
1
1
1.5
1.5
2
2
305
475
31 000
48 500
1 600
2 100
DB
DF
DT
232
288
293
2
1
315
510
32 000
52 000
1 500
1 900
DB
DF
DT
252
308
313
2
1
420
750
42 500
76 500
1 300
1 800
DB
DF
DT
272
348
353
2
1
425
775
43 000
79 000
1 200
1 600
DB
DF
DT
292
368
373
2
1
530
1 040
54 000 106 000
1 100
1 500
DB
DF
DT
314
406
413
2.5
1
B-57
● High Speed Single and Duplex Angular Contact Ball Bearings
2B
B
r
ra
r1
r
ra
r
φd
φD
φDa
a
a
Single
Back-to-back
arrangement
(DB)
d 10 ∼ 40mm
Boundary dimensions
a
φda
a
Tandem
arrangement
(DT)
Face-to-face
arrangement
(DF)
rs min2）
Basic load ratings
dynamic static
dynamic static
kN
kgf
rls min2） Cr
Cor
Cr
Cor
Factor
Limiting speeds1）
min-1
grease
Bearing
numbers
Load
center
kg
single
d
D
B
mm
2B
10
26
30
8
9
16
18
0.3
0.6
0.15
0.3
4.90
5.40
2.20
2.64
500
555
225
269
12.6
13.4
43 000
41 000
58 000
55 000
7000C
7200C
6.5
7
0.019
0.029
12
28
32
8
10
16
20
0.3
0.6
0.15
0.3
5.40
7.10
2.64
3.45
555
720
269
355
13.4
12.9
39 000
36 000
52 000
49 000
7001C
7201C
6.5
8
0.021
0.036
15
32
35
42
9
11
13
18
22
26
0.3
0.6
1
0.15
0.3
0.6
6.25
9.00
13.30
3.40
4.50
6.85
635
915
1 360
345
460
700
14.1
12.9
12.5
34 000
32 000
28 000
45 000
42 000
38 000
7002C
7202C
7302C
7.5
9
10.5
0.029
0.045
0.081
17
35
40
47
10
12
14
20
24
28
0.3
0.6
1
0.15
0.3
0.6
7.70
11.2
15.7
4.10
5.75
8.25
785
1 140
1 600
420
590
840
13.8
13.0
12.5
31 000
29 000
26 000
41 000
38 000
35 000
7003C
7203C
7303C
8.5
10
11.5
0.038
0.062
0.109
20
42
47
52
12
14
15
24
28
30
0.6
1
1.1
0.3
0.6
0.6
10.5
14.6
18.5
6.05
8.15
9.95
1 070
615
1 490
835
1 890 1 020
14.1
13.4
12.6
27 000
25 000
23 000
36 000
34 000
31 000
7004C
7204C
7304C
10
11.5
12.5
0.066
0.1
0.14
25
37
42
47
52
62
7
9
12
15
17
14
18
24
30
34
0.3
0.3
0.6
1
1.1
0.15
0.15
0.3
0.6
0.6
5.05
7.85
11.7
16.6
26.4
3.85
5.40
7.45
10.2
15.3
515
390
800
555
1 190
755
1 690 1 050
2 690 1 560
16.2
15.5
14.7
14.0
12.8
27 000
25 000
23 000
21 000
19 000
36 000
33 000
31 000
28 000
26 000
7805C
7905C
7005C
7205C
7305C
7.5
9
11
12.5
14.5
0.021
0.042
0.078
0.121
0.222
30
42
47
55
62
72
7
9
13
16
19
14
18
26
32
38
0.3
0.3
1
1
1.1
0.15
0.15
0.6
0.6
0.6
5.35
8.30
15.1
23.0
32.5
4.50
6.25
10.3
14.7
20.3
545
460
845
640
1 540 1 050
2 350 1 500
3 300 2 070
16.5
15.9
14.9
14.0
13.4
23 000
21 000
20 000
18 000
16 000
31 000
28 000
26 000
24 000
22 000
7806C
7906C
7006C
7206C
7306C
8.5
9.5
12.5
14
16.5
0.025
0.048
0.112
0.191
0.33
35
47
55
62
72
80
7
10
14
17
21
14
20
28
34
42
0.3
0.6
1
1.1
1.5
0.15
0.3
0.6
0.6
1
5.80
13.2
19.1
30.5
40.5
5.25
9.65
13.7
19.9
25.8
590
535
1 340
985
1 950 1 390
3 100 2 030
4 100 2 630
16.4
15.5
15.0
13.9
13.3
20 000
19 000
17 000
16 000
14 000
27 000
25 000
23 000
21 000
19 000
7807C
7907C
7007C
7207C
7307C
9
11
13.5
15.5
18
0.028
0.073
0.149
0.273
0.44
40
52
62
68
80
7
12
15
18
14
24
30
36
0.3
0.6
1
1.1
0.15
0.3
0.6
0.6
6.05
14.0
20.6
36.5
5.75
11.1
15.9
25.2
615
585
1 420 1 140
2 100 1 620
3 700 2 570
16.2
15.9
15.4
14.2
18 000
17 000
15 000
14 000
24 000
22 000
21 000
19 000
7808C
7908C
7008C
7208C
9.5
13
14.5
17
0.031
0.109
0.184
0.35
fo
mm
a
Mass
oil
(approx.)
1）This value was achieved with laminated phenol resin machined cages; in the case of molded resin cages,with oil lubricant, the value will be 75% of this.
2）Minimal allowable dimension for chamfer dimension r or r1.
B-58
● High Speed Single and Duplex Angular Contact Ball Bearings
Dynamic equivalent radial load
Pr＝XFr＋YFa
r1 a
3）
ra
i fo・Fa
e
Cor
ra
0.178
0.357
0.714
1.07
1.43
2.14
3.57
5.35
7.14
ra
φda
φDb
φda
φDa
0.38
0.40
0.43
0.46
0.47
0.50
0.55
0.56
0.56
Single, DT
DB, DF
Fa/Fr≦e Fa/Fr＞e Fa/Fr≦e Fa/Fr＞e
X
Y
X
Y
X
Y
X
Y
1
0
1.47
1.40
1.30
1.23
0.44 1.19
1.12
1.02
1.00
1.00
2.39
1.65
2.28
1.57
2.11
1.46
2.00
1.38
1.34 0.72 1.93
1.82
1.26
1.66
1.14
1.63
1.12
1.63
1.12
1
Static equivalent radial load
Por＝Xo Fr＋Yo Fa
Single, DT
Xo
Yo
0.5
DB, DF
Xo
0.46
Yo
0.92
1
For single and DT arrangement,
When Por＜Fr use Por＝Fr
Basic load ratings
dynamic static dynamic static
(duplex)
(duplex)
kN
kgf
Limiting speeds1）
Bearing numbers
Abutment and fillet dimensions
(duplex)
min-1
mm
Db
da
Da
ras
r1as
min
max
max
max
max
DB
DF
DT
46 000
43 000
DB
DB
DF
DF
DT
DT
12.5
14.5
23.5
25.5
24.8
27.5
0.3
0.6
0.15
0.3
31 000
29 000
41 000
38 000
DB
DB
DF
DF
DT
DT
14.5
16.5
25.5
27.5
26.8
29.5
0.3
0.6
0.15
0.3
690
920
1 400
27 000
25 000
23 000
36 000
33 000
30 000
DB
DB
DB
DF
DF
DF
DT
DT
DT
17.5
19.5
20.5
29.5
30.5
36.5
30.8
32.5
37.5
0.3
0.6
1
0.15
0.3
0.6
1 280
1 850
2 610
840
1 180
1 680
24 000
23 000
21 000
33 000
30 000
27 000
DB
DB
DB
DF
DF
DF
DT
DT
DT
19.5
21.5
22.5
32.5
35.5
41.5
33.8
37.5
42.5
0.3
0.6
1
0.15
0.3
0.6
12.1
16.3
19.9
1 740
2 420
3 050
1 230
1 670
2 030
22 000
20 000
18 000
29 000
27 000
24 000
DB
DB
DB
DF
DF
DF
DT
DT
DT
24.5
25.5
27
37.5
41.5
45
39.5
42.5
47.5
0.6
1
1
0.3
0.6
0.6
8.20
12.7
19.0
27.0
43.0
7.65
10.8
14.9
20.5
30.5
835
1 300
1 940
2 750
4 350
780
1 110
1 510
2 090
3 100
21 000
19 000
18 000
17 000
15 000
28 000
26 000
24 000
22 000
20 000
DB
DB
DB
DB
DB
DF
DF
DF
DF
DF
DT
DT
DT
DT
DT
27.5
27.5
29.5
30.5
32
34.5
39.5
42.5
46.5
55
35.8
40.8
44.5
47.5
57.5
0.3
0.3
0.6
1
1
0.15
0.15
0.3
0.6
0.6
8.70
13.5
24.6
37.5
52.5
9.00
12.5
20.6
29.5
40.5
890
1 380
2 510
3 800
5 350
920
1 280
2 100
3 000
4 150
18 000
17 000
16 000
14 000
13 000
24 000
22 000
21 000
19 000
17 000
DB
DB
DB
DB
DB
DF
DF
DF
DF
DF
DT
DT
DT
DT
DT
32.5
32.5
35.5
35.5
37
39.5
44.5
49.5
56.5
65
40.8
45.8
50.5
57.5
67.5
0.3
0.3
1
1
1
0.15
0.15
0.6
0.6
0.6
9.40
21.4
31.0
49.5
65.5
10.5
19.3
27.3
40.0
51.5
960
2 180
3 150
5 050
6 700
1 070
1 970
2 790
4 050
5 250
16 000
15 000
14 000
13 000
11 000
21 000
20 000
18 000
17 000
15 000
DB
DB
DB
DB
DB
DF
DF
DF
DF
DF
DT
DT
DT
DT
DT
37.5
39.5
40.5
42
43.5
44.5
50.5
56.5
65
71.5
45.8
52.5
57.5
67.5
74.5
0.3
0.6
1
1
1.5
0.15
0.3
0.6
0.6
1
9.80
22.7
33.5
59.0
11.5
22.3
32.0
50.5
1 000
2 310
3 400
6 000
1 170
2 270
3 250
5 150
14 000
13 000
12 000
11 000
19 000
18 000
16 000
15 000
DB
DB
DB
DB
DF
DF
DF
DF
DT
DT
DT
DT
42.5
44.5
45.5
47
49.5
57.5
62.5
73
50.8
59.5
63.5
75.5
0.3
0.6
1
1
0.15
0.3
0.6
0.6
grease
oil
450
540
34 000
32 000
900
1 170
540
705
6.75
9.05
13.7
1 030
1 490
2 200
12.5
18.1
25.6
8.25
11.5
16.5
17.0
23.7
30.0
Cr
Cor
Cr
7.95
8.80
4.40
5.25
815
900
8.80
11.5
5.25
6.95
10.1
14.6
21.6
Cor
3）i is 2 for rear or front combination and 1 for single or parallel combination.
Note: This bearing has a contact angle of 15˚ and is manufactured with accuracies of JIS Class 5 or higher.
B-59
● High Speed Single and Duplex Angular Contact Ball Bearings
2B
B
r
ra
r1
r
ra
r
φd
φD
φDa
a
a
Single
a
d 40 ∼ 75mm
Boundary dimensions
a
Face-to-face
arrangement
(DF)
Back-to-back
arrangement
(DB)
φda
rs min2）
Basic load ratings
dynamic static
dynamic static
kN
kgf
rls min2） Cr
Cor
Cr
Cor
Tandem
arrangement
(DT)
Factor
Limiting speeds1）
min-1
grease
Bearing
numbers
Load
center
kg
single
d
D
B
mm
2B
40
90
23
46
1.5
1
49.5
32.5
5 050 3 300
13.4
13 000
17 000
7308C
20
0.606
45
58
68
75
85
100
7
12
16
19
25
14
24
32
38
50
0.3
0.6
1
1.1
1.5
0.15
0.3
0.6
0.6
1
6.25
17.3
24.4
41.0
64.0
6.25
14.1
19.3
28.8
43.0
640
1 760
2 490
4 150
6 550
640
1 430
1 960
2 940
4 400
16.0
15.8
15.4
14.2
13.3
16 000
15 000
14 000
13 000
11 000
21 000
20 000
19 000
17 000
15 000
7809C
7909C
7009C
7209C
7309C
10.4
13.5
16
18
22.5
0.030
0.126
0.233
0.4
0.83
50
65
72
80
90
110
7
12
16
20
27
14
24
32
40
54
0.3
0.6
1
1.1
2
0.15
0.3
0.6
0.6
1
7.90
18.3
26.0
43.0
75.0
8.05
15.8
21.9
31.5
51.5
805
1 870
2 650
4 350
7 650
820
1 620
2 230
3 250
5 250
16.1
16.1
15.7
14.5
13.4
14 000
14 000
13 000
12 000
10 000
19 000
18 000
17 000
15 000
14 000
7810C
7910C
7010C
7210C
7310C
11
14
16.5
19.5
24.5
0.049
0.131
0.253
0.454
1.05
55
72
80
90
100
120
9
13
18
21
29
18
26
36
42
58
0.3
1.0
1.1
1.5
2.0
0.15
0.6
0.6
1
1
13.1
19.1
34.0
53.0
87.0
12.7
17.7
28.6
40.0
60.5
1 330
1 950
3 500
5 400
8 850
1 300
1 810
2 920
4 100
6 200
16.4
16.3
15.5
14.5
13.4
13 000
12 000
12 000
11 000
9 400
18 000
16 000
15 000
14 000
13 000
7811C
7911C
7011C
7211C
7311C
13
15.5
18.5
21
26.5
0.079
0.178
0.37
0.593
1.34
60
78
85
95
110
130
10
13
18
22
31
20
26
36
44
62
0.3
1
1.1
1.5
2.1
0.15
0.6
0.6
1
1.1
13.4
20.0
35.0
64.0
99.0
13.6
19.5
30.5
49.5
70.5
1 370
2 040
3 550
6 550
10 100
1 390
1 990
3 150
5 050
7 150
16.3
16.5
15.7
14.5
13.4
12 000
11 000
11 000
9 700
8 700
16 000
15 000
14 000
13 000
12 000
7812C
7912C
7012C
7212C
7312C
14
16
19.5
22.5
28.5
0.101
0.191
0.387
0.757
1.68
65
85
90
100
120
140
10
13
18
23
33
20
26
36
46
66
0.6
1
1.1
1.5
2.1
0.3
0.6
0.6
1
1.1
14.1
20.2
37.0
70.0
112
14.9
20.4
34.5
55.0
80.5
1 440
2 060
3 800
7 100
11 400
1 520
2 080
3 500
5 600
8 200
16.2
16.5
15.9
14.6
13.4
11 000
11 000
9 900
9 000
8 100
15 000
14 000
13 000
12 000
11 000
7813C
7913C
7013C
7213C
7313C
15
17
20
24
30
0.122
0.204
0.421
0.948
2.06
70
90
100
110
125
150
10
16
20
24
35
20
32
40
48
70
0.6
1
1.1
1.5
2.1
0.3
0.6
0.6
1
1.1
14.5
28.9
47.0
76.0
126
15.8
29.0
43.0
60.0
92.0
1 470
2 950
4 800
7 750
12 900
1 610
2 960
4 400
6 150
9 350
16.1
16.4
15.7
14.6
13.4
10 000
9 900
9 200
8 300
7 500
14 000
13 000
12 000
11 000
10 000
7814C
7914C
7014C
7214C
7314C
15.5
19.5
22
25
32
0.13
0.331
0.583
1.04
2.5
75
95
105
10
16
20
32
0.6
1
0.3
0.6
14.8
29.4
16.7
30.5
1 510 1 700
3 000 3 100
16.0
16.5
9 700
9 200
13 000
12 000
7815C
7915C
16.5
20
0.138
0.35
fo
mm
a
Mass
oil
(approx.)
1）This value was achieved with laminated phenol resin machined cages; in the case of molded resin cages,with oil lubricant, the value will be 75% of this.
2）Minimal allowable dimension for chamfer dimension r or r1.
B-60
● High Speed Single and Duplex Angular Contact Ball Bearings
Dynamic equivalent radial load
Pr＝XFr＋YFa
r1 a
3）
ra
i fo・Fa
e
Cor
ra
0.178
0.357
0.714
1.07
1.43
2.14
3.57
5.35
7.14
ra
φda
φDb
φda
φDa
0.38
0.40
0.43
0.46
0.47
0.50
0.55
0.56
0.56
Single, DT
DB, DF
Fa/Fr≦e Fa/Fr＞e Fa/Fr≦e Fa/Fr＞e
X
Y
X
Y
X
Y
X
Y
1
0
1.47
1.40
1.30
1.23
0.44 1.19
1.12
1.02
1.00
1.00
2.39
1.65
2.28
1.57
2.11
1.46
2.00
1.38
1.34 0.72 1.93
1.82
1.26
1.66
1.14
1.63
1.12
1.63
1.12
1
Static equivalent radial load
Por＝Xo Fr＋Yo Fa
Single, DT
Xo
Yo
0.5
DB, DF
Xo
0.46
Yo
0.92
1
For single and DT arrangement,
When Por＜Fr use Por＝Fr
Basic load ratings
dynamic static dynamic static
(duplex)
(duplex)
kN
kgf
Limiting speeds1）
Bearing numbers
Abutment and fillet dimensions
(duplex)
min-1
mm
Db
da
Da
ras
r1as
min
max
max
max
max
DB
DF
DT
13 000
DB
DF
DT
48.5
81.5
84.5
1.5
1
13 000
12 000
11 000
10 000
9 000
17 000
16 000
15 000
13 000
12 000
DB
DB
DB
DB
DB
DF
DF
DF
DF
DF
DT
DT
DT
DT
DT
47.5
49.5
50.5
52
53.5
55.5
63.5
69.5
78
91.5
56.8
65.5
70.5
80.5
94.5
0.3
0.6
1
1
1.5
0.15
0.3
0.6
0.6
1
1 300 1 640
3 050 3 250
4 300 4 450
7 100 6 450
12 400 10 500
11 000
11 000
10 000
9 100
8 200
15 000
14 000
13 000
12 000
11 000
DB
DB
DB
DB
DB
DF
DF
DF
DF
DF
DT
DT
DT
DT
DT
52.5
54.5
55.5
57
60
62.5
67.5
74.5
83
100
63.8
69.5
75.5
85.5
104.5
0.3
0.6
1
1
2
0.15
0.3
0.6
0.6
1
25.5
35.5
57.5
80.0
121
2 160 2 600
3 150 3 600
5 650 5 850
8 750 8 150
14 400 12 400
10 000
9 800
9 200
8 300
7 500
14 000
13 000
12 000
11 000
9 900
DB
DB
DB
DB
DB
DF
DF
DF
DF
DF
DT
DT
DT
DT
DT
57.5
60.5
62
63.5
65
69.5
74.5
83
91.5
110
70.8
75.5
85.5
94.5
114.5
0.3
1
1
1.5
2
0.15
0.6
0.6
1
1
21.8
32.5
57.0
104
161
27.2
39.0
61.5
99.0
141
2 230 2 770
3 300 4 000
5 800 6 250
10 600 10 100
16 400 14 300
9 600
9 000
8 400
7 700
6 900
13 000
12 000
11 000
10 000
9 200
DB
DB
DB
DB
DB
DF
DF
DF
DF
DF
DT
DT
DT
DT
DT
62.5
65.5
67
68.5
72
75.5
79.5
88
101.5
118
76.8
80.5
90.5
104.5
123
0.3
1
1
1.5
2
0.15
0.6
0.6
1
1
22.9
33.0
60.5
113
182
29.9
40.5
68.5
110
161
2 340 3 050
3 350 4 150
6 150 7 000
11 600 11 200
18 600 16 400
8 900
8 400
7 800
7 100
6 400
12 000
11 000
10 000
9 500
8 500
DB
DB
DB
DB
DB
DF
DF
DF
DF
DF
DT
DT
DT
DT
DT
69.5
70.5
72
73.5
77
80.5
84.5
93
111.5
128
82.5
85.5
95.5
114.5
133
0.6
1
1
1.5
2
0.3
0.6
0.6
1
1
23.5
47.0
76.0
123
205
31.5
58.0
86.0
120
184
2 390 3 250
4 800 5 900
7 750 8 750
12 600 12 300
20 900 18 700
8 200
7 800
7 300
6 600
5 900
11 000
10 000
9 700
8 800
7 900
DB
DB
DB
DB
DB
DF
DF
DF
DF
DF
DT
DT
DT
DT
DT
74.5
75.5
77
78.5
82
85.5
94.5
103
116.5
138
87.5
95.5
105.5
119.5
143
0.6
1
1
1.5
2
0.3
0.6
0.6
1
1
24.0
47.5
33.5
61.0
7 700
7 300
10 000
9 700
DB
DB
DF
DF
DT
DT
79.5
80.5
90.5
99.5
92.5
100.5
0.6
1
0.3
0.6
grease
oil
6 600
10 000
1 280
2 870
3 950
5 850
8 800
16.1
31.5
44.0
63.5
103
21.2
31.0
55.5
86.0
141
Cr
Cor
Cr
80.0
64.5
8 150
10.2
28.1
39.5
66.5
104
12.5
28.1
38.5
57.5
86.0
1 040
2 870
4 050
6 750
10 600
12.8
29.8
42.0
69.5
122
2 450
4 850
Cor
3 400
6 200
3）i is 2 for rear or front combination and 1 for single or parallel combination.
Note: This bearing has a contact angle of 15˚ and is manufactured with accuracies of JIS Class 5 or higher.
B-61
● High Speed Single and Duplex Angular Contact Ball Bearings
2B
B
r
ra
r1
r
ra
r
φd
φD
φDa
a
a
Single
a
d 75 ∼ 105mm
Boundary dimensions
a
Face-to-face
arrangement
(DF)
Back-to-back
arrangement
(DB)
φda
rs min2）
Basic load ratings
dynamic static
dynamic static
kN
kgf
rls min2） Cr
Cor
Cr
Cor
Tandem
arrangement
(DT)
Factor
Limiting speeds1）
min-1
grease
Bearing
numbers
Load
center
kg
single
D
B
mm
2B
75
115
130
160
20
25
37
40
50
74
1.1
1.5
2.1
0.6
1
1.1
48.0
79.5
137
45.5
65.5
104
4 900
8 100
14 000
4 650
6 700
10 600
15.9
14.8
13.4
8 600
7 800
7 000
11 000
10 000
9 300
7015C
7215C
7315C
22.5
26.5
34
0.63
1.14
3.09
80
100
110
125
140
170
10
16
22
26
39
20
32
44
52
78
0.6
1
1.1
2
2.1
0.3
0.6
0.6
1
1.1
15.1
29.8
58.5
93.0
149
17.6
31.5
55.5
77.5
117
1 540
3 050
6 000
9 450
15 200
1 790
3 200
5 650
7 900
11 900
15.9
16.5
15.7
14.7
13.5
9 100
8 600
8 000
7 300
6 500
12 000
12 000
11 000
9 700
8 700
7816C
7916C
7016C
7216C
7316C
17
21
24.5
27.5
36
0.146
0.37
0.822
1.39
3.55
110
120
130
150
180
13
18
22
28
41
26
36
44
56
82
1
1.1
1.1
2
3
0.6
0.6
0.6
1
1.1
22.1
40.0
60.0
104
161
24.7
42.5
58.5
90.5
130
2 250
4 100
6 150
10 600
16 400
2 520
4 300
6 000
9 200
13 300
16.1
16.5
15.9
14.9
13.5
8 600
8 100
7 600
6 900
6 200
11 000
11 000
10 000
9 100
8 200
7817C
7917C
7017C
7217C
7317C
19.5
22.5
25.5
30
38.5
0.257
0.523
0.862
1.73
4.18
115
125
140
160
190
13
18
24
30
43
26
36
48
60
86
1
1.1
1.5
2
3
0.6
0.6
1
1
1.1
22.7
39.5
71.5
123
183
26.1
42.5
69.0
105
158
2 320
4 050
7 300
12 500
18 700
2 670
4 350
7 050
10 700
16 100
16.1
16.6
15.7
14.6
13.5
8 100
7 700
7 100
6 500
5 800
11 000
10 000
9 500
8 600
7 800
7818C
7918C
7018C
7218C
7318C
20
23.5
27.5
31.5
40.5
0.27
0.549
1.12
2.13
4.88
120
130
145
170
200
13
18
24
32
45
26
36
48
64
90
1
1.1
1.5
2.1
3
0.6
0.6
1
1.1
1.1
23.4
41.0
73.5
139
196
27.6
46.0
73.0
120
174
2 380
4 200
7 500
14 200
20 000
2 820
4 650
7 450
12 200
17 800
16.0
16.5
15.9
14.6
13.5
7 600
7 300
6 800
6 100
5 500
10 000
9 700
9 000
8 100
7 300
7819C
7919C
7019C
7219C
7319C
21
24
28
34
42.5
0.283
0.574
1.17
2.58
5.65
100
125
140
150
180
215
13
20
24
34
47
26
40
48
68
94
1
1.1
1.5
2.1
3
0.6
0.6
1
1.1
1.1
23.5
53.0
75.5
149
222
28.3
58.5
77.0
127
207
2 400
5 400
7 700
15 200
22 700
2 890
6 000
7 900
12 900
21 100
16.0
16.5
16.0
14.5
13.4
7 200
6 900
6 400
5 800
5 200
9 600
9 100
8 600
7 700
6 900
7820C
7920C
7020C
7220C
7320C
21.5
26
28.5
36
44.5
0.296
0.778
1.25
3.08
6.9
105
130
145
160
190
225
13
20
26
36
49
26
40
52
72
98
1
1.1
2
2.1
3
0.6
0.6
1
1.1
1.1
24.1
54.0
88.0
162
236
29.8
61.5
89.5
143
226
2 460
5 500
9 000
16 600
24 100
3 050
6 250
9 100
14 600
23 000
15.9
16.6
15.9
14.5
13.4
6 900
6 500
6 100
5 500
4 900
9 200
8 700
8 100
7 300
6 600
7821C
7921C
7021C
7221C
7321C
22
26.5
31
38
46.5
0.31
0.81
1.53
3.66
7.86
d
85
90
95
fo
mm
a
Mass
oil
(approx.)
1）This value was achieved with laminated phenol resin machined cages; in the case of molded resin cages,with oil lubricant, the value will be 75% of this.
2）Minimal allowable dimension for chamfer dimension r or r1.
B-62
● High Speed Single and Duplex Angular Contact Ball Bearings
Dynamic equivalent radial load
Pr＝XFr＋YFa
r1 a
3）
ra
i fo・Fa
e
Cor
ra
0.178
0.357
0.714
1.07
1.43
2.14
3.57
5.35
7.14
ra
φda
φDb
φda
φDa
0.38
0.40
0.43
0.46
0.47
0.50
0.55
0.56
0.56
Single, DT
DB, DF
Fa/Fr≦e Fa/Fr＞e Fa/Fr≦e Fa/Fr＞e
X
Y
X
Y
X
Y
X
Y
1
0
1.47
1.40
1.30
1.23
0.44 1.19
1.12
1.02
1.00
1.00
2.39
1.65
2.28
1.57
2.11
1.46
2.00
1.38
1.34 0.72 1.93
1.82
1.26
1.66
1.14
1.63
1.12
1.63
1.12
1
Static equivalent radial load
Por＝Xo Fr＋Yo Fa
Single, DT
Xo
Yo
0.5
DB, DF
Xo
0.46
Yo
0.92
1
For single and DT arrangement,
When Por＜Fr use Por＝Fr
Basic load ratings
dynamic static dynamic static
(duplex)
(duplex)
kN
kgf
Cr
Cor
Cr
Limiting speeds1）
min-1
Cor
Bearing numbers
Abutment and fillet dimensions
(duplex)
grease
oil
DB
DF
DT
da
Da
min
max
mm
Db
max
ras
r1as
max
max
78.0
129
223
91.5
131
208
7 950 9 300
13 100 13 400
22 800 21 200
6 800
6 200
5 500
9 000
8 200
7 400
DB
DB
DB
DF
DF
DF
DT
DT
DT
82
83.5
87
108
121.5
148
110.5
124.5
153
1
1.5
2
0.6
1
1
24.6
48.5
95.5
151
242
35.0
63.0
111
155
234
2 510 3 600
4 950 6 450
9 700 11 300
15 400 15 800
24 700 23 800
7 200
6 800
6 400
5 800
5 200
9 600
9 100
8 500
7 700
6 900
DB
DB
DB
DB
DB
DF
DF
DF
DF
DF
DT
DT
DT
DT
DT
84.5
85.5
87
90
92
95.5
104.5
118
130
158
97.5
105.5
120.5
134.5
163
0.6
1
1
2
2
0.3
0.6
0.6
1
1
36.0
65.0
98.0
169
261
49.5
84.5
117
181
261
3 650 5 050
6 650 8 650
9 950 12 000
17 200 18 400
26 600 26 600
6 800
6 400
6 000
5 400
4 900
9 100
8 600
8 000
7 200
6 500
DB
DB
DB
DB
DB
DF
DF
DF
DF
DF
DT
DT
DT
DT
DT
90.5
92
92
95
99
104.5
113
123
140
166
105.5
115.5
125.5
144.5
173
1
1
1
2
2.5
0.6
0.6
0.6
1
1
37.0
64.5
116
199
297
52.5
85.0
138
209
315
3 750 5 350
6 550 8 700
11 900 14 100
20 300 21 400
30 500 32 000
6 400
6 100
5 700
5 100
4 600
8 500
8 100
7 500
6 800
6 100
DB
DB
DB
DB
DB
DF
DF
DF
DF
DF
DT
DT
DT
DT
DT
95.5
97
98.5
100
104
109.5
118
131.5
150
176
110.5
120.5
134.5
154.5
183
1
1
1.5
2
2.5
0.6
0.6
1
1
1
38.0
67.0
119
226
320
55.5
91.5
146
240
350
3 850 5 650
6 850 9 350
12 200 14 900
23 000 24 400
32 500 35 500
6 000
5 800
5 400
4 800
4 300
8 000
7 700
7 100
6 400
5 800
DB
DB
DB
DB
DB
DF
DF
DF
DF
DF
DT
DT
DT
DT
DT
100.5
102
103.5
107
109
114.5
123
136.5
158
186
115.5
125.5
139.5
163
193
1
1
1.5
2
2.5
0.6
0.6
1
1
1
38.0
86.0
122
242
360
56.5
117
154
254
415
3 900
8 750
12 500
24 700
37 000
5 750
12 000
15 800
25 900
42 000
5 700
5 400
5 100
4 600
4 100
7 600
7 200
6 800
6 100
5 500
DB
DB
DB
DB
DB
DF
DF
DF
DF
DF
DT
DT
DT
DT
DT
105.5
107
108.5
112
114
119.5
133
141.5
168
201
120.5
135.5
144.5
173
208
1
1
1.5
2
2.5
0.6
0.6
1
1
1
39.0
87.5
143
264
385
59.5
123
179
286
450
4 000
8 900
14 600
26 900
39 000
6 050
12 500
18 200
29 100
46 000
5 500
5 200
4 800
4 400
3 900
7 300
6 900
6 400
5 800
5 200
DB
DB
DB
DB
DB
DF
DF
DF
DF
DF
DT
DT
DT
DT
DT
110.5
112
115
117
119
124.5
138
150
178
211
125.5
140.5
154.5
183
218
1
1
2
2
2.5
0.6
0.6
1
1
1
3）i is 2 for rear or front combination and 1 for single or parallel combination.
Note: This bearing has a contact angle of 15˚ and is manufactured with accuracies of JIS Class 5 or higher.
B-63
● High Speed Single and Duplex Angular Contact Ball Bearings
2B
B
r
ra
r1
r
ra
r
φd
φD
φDa
a
a
Single
a
d 110 ∼ 200mm
Boundary dimensions
a
Face-to-face
arrangement
(DF)
Back-to-back
arrangement
(DB)
φda
Tandem
arrangement
(DT)
rs min2）
32
40
56
76
100
1
1.1
2
2.1
3
0.6
0.6
1
1.1
1.1
34.5
54.5
101
176
249
42.5
63.5
101
160
241
3 550
5 550
10 300
17 900
25 400
4 350
6 450
10 300
16 300
24 600
16.1
16.5
15.7
14.5
13.3
6 500
6 200
5 800
5 200
4 700
8 700
8 300
7 700
6 900
6 300
7822C
7922C
7022C
7222C
7322C
24.5
27.5
33
40
48.5
0.486
0.843
1.91
4.29
9.22
16
22
28
40
32
44
56
80
1
1.1
2
2.1
0.6
0.6
1
1.1
35.0
67.5
103
199
44.5
78.5
108
192
3 600
6 850
10 500
20 200
4 550
8 000
11 000
19 600
16.0
16.6
16.0
14.6
6 000
5 700
5 300
4 800
8 000
7 600
7 100
6 400
7824C
7924C
7024C
7224C
26
30
34
42.5
0.525
1.38
2.04
5.16
130
165
180
200
230
18
24
33
40
36
48
66
80
1.1
1.5
2
3
0.6
1
1
1.1
47.0
82.5
129
213
59.5
98.0
137
214
4 750
8 450
13 200
21 700
6 050
10 000
14 000
21 800
16.1
16.5
15.9
14.7
5 500
5 200
4 900
4 400
7 400
7 000
6 500
5 800
7826C
7926C
7026C
7226C
29
33
38.5
44
0.911
1.82
3.73
5.83
140
175
190
210
250
18
24
33
42
36
48
66
84
1.1
1.5
2
3
0.6
1
1
1.1
47.5
83.5
132
221
62.5
101
145
233
4 850
8 500
13 500
22 600
6 350
10 300
14 800
23 800
16.0
16.5
16.0
15.0
5 100
4 800
4 500
4 000
6 800
6 400
6 000
5 300
7828C
7928C
7028C
7228C
30
34
40
47
0.973
1.94
3.96
7.3
150
190
210
225
270
20
28
35
45
40
56
70
90
1.1
2
2.1
3
0.6
1
1.1
1.1
60.5
108
151
253
79.5
132
168
281
6 150
11 000
15 400
25 800
8 100
13 400
17 200
28 600
16.1
16.5
16.0
14.9
4 700
4 500
4 200
3 700
6 300
6 000
5 600
5 000
7830C
7930C
7030C
7230C
33
38
42.5
50.5
1.33
2.96
4.82
11
160
200
220
240
20
28
38
40
56
76
1.1
2
2.1
0.6
1
1.1
62.0
109
171
83.5
136
193
6 300
11 100
17 400
8 500
13 900
19 700
16.0
16.5
16.0
4 400
4 200
3 900
5 900
5 600
5 200
7832C
7932C
7032C
34
39.5
46
1.41
3.13
5.96
170
215
230
260
22
28
42
44
56
84
1.1
2
2.1
0.6
1
1.1
76.0
113
205
102
145
234
7 750
11 500
20 900
10 400
14 800
23 900
16.1
16.4
15.9
4 100
3 900
3 700
5 500
5 300
4 900
7834C
7934C
7034C
37
41
50
1.87
3.29
7.96
180
280
46
92
2.1
1.1
241
290
24 500
29 600
15.7
3 400
4 600
7036C
54
10.4
190
290
46
92
2.1
1.1
247
305
25 100
31 500
15.9
3 200
4 300
7038C
55
10.8
200
310
51
102
2.1
1.1
277
355
28 200
36 000
15.7
3 100
4 100
7040C
59.5
14
D
B
mm
2B
140
150
170
200
240
16
20
28
38
50
120
150
165
180
215
d
110
Factor
Limiting speeds1）
Basic load ratings
dynamic static
dynamic static
kN
kgf
rls min2） Cr
Cor
Cr
Cor
fo
min-1
grease
Bearing
numbers
oil
Load
center
Mass
kg
single
mm
a
(approx.)
1）This value was achieved with laminated phenol resin machined cages; in the case of molded resin cages,with oil lubricant, the value will be 75% of this.
2）Minimal allowable dimension for chamfer dimension r or r1.
B-64
● High Speed Single and Duplex Angular Contact Ball Bearings
Dynamic equivalent radial load
Pr＝XFr＋YFa
r1 a
3）
ra
i fo・Fa
e
Cor
ra
0.178
0.357
0.714
1.07
1.43
2.14
3.57
5.35
7.14
ra
φda
φDb
φda
φDa
0.38
0.40
0.43
0.46
0.47
0.50
0.55
0.56
0.56
Single, DT
DB, DF
Fa/Fr≦e Fa/Fr＞e Fa/Fr≦e Fa/Fr＞e
X
Y
X
Y
X
Y
X
Y
1
0
1.47
1.40
1.30
1.23
0.44 1.19
1.12
1.02
1.00
1.00
2.39
1.65
2.28
1.57
2.11
1.46
2.00
1.38
1.34 0.72 1.93
1.82
1.26
1.66
1.14
1.63
1.12
1.63
1.12
1
Static equivalent radial load
Por＝Xo Fr＋Yo Fa
Single, DT
Xo
Yo
0.5
DB, DF
Xo
0.46
Yo
0.92
1
For single and DT arrangement,
When Por＜Fr use Por＝Fr
Basic load ratings
dynamic static dynamic static
(duplex)
(duplex)
kN
kgf
Cr
Cor
Limiting speeds1）
min-1
Cr
Cor
Bearing numbers
Abutment and fillet dimensions
(duplex)
grease
oil
DB
DF
DT
da
Da
min
max
mm
Db
max
ras
r1as
max
max
56.0
89.0
164
286
405
85.0
127
203
320
485
5 750
9 050
16 700
29 200
41 000
8 700
12 900
20 700
32 500
49 000
5 200
4 900
4 600
4 100
3 700
6 900
6 600
6 100
5 500
5 000
DB
DB
DB
DB
DB
DF
DF
DF
DF
DF
DT
DT
DT
DT
DT
115.5
117
120
122
124
134.5
143
160
188
226
135.5
145.5
164.5
193
233
1
1
2
2
2.5
0.6
0.6
1
1
1
57.0
109
168
325
89.5
157
216
385
5 800 9 100
11 200 16 000
17 100 22 000
33 000 39 000
4 700
4 500
4 200
3 800
6 300
6 000
5 600
5 000
DB
DB
DB
DB
DF
DF
DF
DF
DT
DT
DT
DT
125.5
127
130
132
144.5
158
170
203
145.5
160.5
174.5
208
1
1
2
2
0.6
0.6
1
1
76.0
134
210
345
119
196
274
430
7 750
13 700
21 400
35 500
12 100
20 000
28 000
43 500
4 400
4 100
3 800
3 500
5 800
5 500
5 100
4 600
DB
DB
DB
DB
DF
DF
DF
DF
DT
DT
DT
DT
137
138.5
140
144
158
171.5
190
216
160.5
174.5
194.5
223
1
1.5
2
2.5
0.60
1
1
1
77.5
136
214
360
125
203
290
465
7 900
13 800
21 900
36 500
12 700
20 700
29 600
47 500
4 000
3 800
3 600
3 200
5 400
5 100
4 800
4 200
DB
DB
DB
DB
DF
DF
DF
DF
DT
DT
DT
DT
147
148.5
150
154
168
181.5
200
236
170.5
184.5
204.5
243
1
1.5
2
2.5
0.6
1
1
1
98.5
175
245
410
159
263
335
560
10 000
17 800
25 000
42 000
16 200
26 800
34 500
57 500
3 700
3 600
3 300
3 000
5 000
4 800
4 400
4 000
DB
DB
DB
DB
DF
DF
DF
DF
DT
DT
DT
DT
157
160
162
164
183
200
213
256
185.5
204.5
218
263
1
2
2
2.5
0.6
1
1
1
100
177
278
167
272
385
10 200 17 000
18 100 27 800
28 300 39 500
3 500
3 300
3 100
4 700
4 400
4 100
DB
DB
DB
DF
DF
DF
DT
DT
DT
167
170
172
193
210
228
195.5
214.5
233
1
2
2
0.6
1
1
123
183
330
204
290
470
12 600 20 800
18 700 29 600
34 000 48 000
3 300
3 100
2 900
4 400
4 200
3 900
DB
DB
DB
DF
DF
DF
DT
DT
DT
177
180
182
208
220
248
210.5
224.5
253
1
2
2
0.6
1
1
390
580
40 000 59 000
2 700
3 600
DB
DF
DT
192
268
273
2
1
400
615
41 000 62 500
2 600
3 400
DB
DF
DT
202
278
283
2
1
450
710
46 000 72 500
2 400
3 200
DB
DF
DT
212
298
303
2
1
3）i is 2 for rear or front combination and 1 for single or parallel combination.
Note: This bearing has a contact angle of 15˚ and is manufactured with accuracies of JIS Class 5 or higher.
B-65
● Ultra-High Speed Angular Contact Ball Bearings
BNT type
Dynamic equivalent radial load
Pr＝XFr＋YFa
Fa
Fa
fo・Fa
≦e
＞e
Fr
Fr
e
Cor
X Y X
Y
0.178 0.35
1.57
0.357 0.37
1.53
0.714 0.38
1.46
1.07 0.39
1.42
0 0.44 1.38
1.43 0.40 1
2.14 0.42
1.33
3.57 0.45
1.25
5.35 0.47
1.18
7.14 0.49
1.13
Static equivalent radial load
Por＝0.52Fr＋0.54Fa
B
r
ra
r
r1
ra
r
φd
φD
φDa
φda
a
When Por＜Fr use Por＝Fr
d 10 ∼ 45mm
Boundary dimensions
mm
Basic load ratings
Factor Limiting speeds
dynamic static dynamic static
kN
kgf
min-1
d
D
B rs min1）r1s min1）
10
26
30
8
9
0.3
0.6
12
28
32
8
10
15
32
35
17
Cr
Cor
Cr
Cor
fo
grease
oil
0.15
0.3
3.75
4.15
1.45
1.71
385
420
148
175
8.3
8.7
48 000
46 000
64 000
61 000
0.3
0.6
0.15
0.3
4.15
5.40
1.73
2.28
420
550
176
232
8.8
8.5
43 000
40 000
9
11
0.3
0.6
0.15
0.3
4.75
6.85
2.22
2.97
485
700
226
300
9.2
8.5
35
40
10
12
0.3
0.6
0.15
0.3
5.90
8.55
2.70
3.80
600
870
275
385
20
42
47
12
14
0.6
1
0.3
0.6
8.00
11.2
3.95
5.35
815
1 140
25
47
52
12
15
0.6
1
0.3
0.6
8.95
12.7
4.85
6.70
30
55
62
13
16
1
1
0.6
0.6
11.6
17.6
6.75
9.60
35
62
72
14
17
1
1.1
0.6
0.6
14.6
23.2
40
68
80
15
18
1
1.1
0.6
0.6
45
75
85
16
19
1
1.1
0.6
0.6
Bearing
numbers
Abutment and
fillet dimensions
mm
da
Da
ras
Load Mass
center
mm
kg
min
max
max
a
(approx.)
BNT000
BNT200
12.5
14.5
23.5
25.5
0.3
0.6
6.5
7
0.015
0.019
57 000
54 000
BNT001
BNT201
14.5
16.5
25.5
27.5
0.3
0.6
6.5
8
0.020
0.025
38 000
35 000
50 000
47 000
BNT002
BNT202
17.5
19.5
29.5
30.5
0.3
0.6
7.5
9
0.029
0.035
9.0
8.5
34 000
32 000
46 000
42 000
BNT003
BNT203
19.5
21.5
32.5
35.5
0.3
0.6
8.5
10
0.033
0.054
405
545
9.2
8.8
30 000
28 000
40 000
38 000
BNT004
BNT204
24.5
25.5
37.5
41.5
0.6
1
10
11.5
0.057
0.092
910
1 290
495
685
9.6
9.2
25 000
24 000
34 000
31 000
BNT005
BNT205
29.5
30.5
42.5
46.5
0.6
1
11
12.5
0.067
0.127
1 180
1 800
685
980
9.8
9.2
22 000
20 000
29 000
27 000
BNT006
BNT206
35.5
35.5
49.5
56.5
1
1
12.5
14
0.109
0.201
8.95
13.1
1 490
910
2 370 1 330
9.8
9.1
19 000
18 000
26 000
24 000
BNT007
BNT207
40.5
42
56.5
65
1
1
13.5
15.5
0.146
0.294
15.7
27.8
10.4
16.5
1 600 1 060
2 830 1 680
10.0
9.3
17 000
16 000
23 000
21 000
BNT008
BNT208
45.5
47
62.5
73
1
1
14.5
17
0.182
0.383
18.6
31.0
12.6
18.9
1 900 1 290
3 200 1 920
10.1
9.3
15 000
14 000
21 000
19 000
BNT009
BNT209
50.5
52
69.5
78
1
1
16
18
0.235
0.437
1）Minimal allowable dimension for chamfer dimension r or r1.
Note: This bearing is manufactured with accuracies of JIS Class 5 or higher.
B-66
● Ultra-High Speed Angular Contact Ball Bearings
HSB type
B
r
r1
r1
r
φD
ra
ra
φd
φda
φDa
a
Dynamic equivalent radial load
Pr＝XFr＋YFa
Fa
Fa
fo・Fa
≦e
＞e
Fr
Fr
e
Cor
X Y X
Y
0.178 0.35
1.57
0.357 0.37
1.53
0.714 0.38
1.46
1.07 0.39
1.42
0 0.44 1.38
1.43 0.40 1
2.14 0.42
1.33
3.57 0.45
1.25
5.35 0.47
1.18
7.14 0.49
1.13
Static equivalent radial load
Por＝0.52Fr＋0.54Fa
When Por＜Fr use Por＝Fr
d 50 ∼ 110mm
Boundary dimensions
mm
Basic load ratings
Factor Limiting speeds
dynamic static dynamic static
kN
kgf
min-1
B rs min1）r1s min1）
Bearing
numbers
fo
grease
oil
1 080
745
2 120 1 160
11.1
10.4
15 000
14 000
20 000
19 000
HSB910C
HSB010C
9.20
13.6
1 380
940
2 300 1 380
11.0
10.6
14 000
13 000
18 000
17 000
13.9
23.7
9.95
15.0
1 420 1 010
2 410 1 530
11.1
10.7
13 000
12 000
0.6
0.6
14.3
24
10.7
15.8
1 460 1 090
2 450 1 610
11.2
10.8
1
1.1
0.6
0.6
18
29.4
13.5
19.9
1 830 1 370
3 000 2 030
16
20
1
1.1
0.6
0.6
18.5
31.5
14.4
22.4
110
125
16
22
1
1.1
0.6
0.6
18.9
36
85
120
130
18
22
1.1
1.1
0.6
0.6
90
125
140
18
24
1.1
1.5
95
130
145
18
24
100
140
150
105
110
d
D
Cr
Cor
50
72
80
12
16
0.6
1
0.3
0.6
10.6
20.8
7.30
11.4
55
80
90
13
18
1
1.1
0.6
0.6
13.5
22.6
60
85
95
13
18
1
1.1
0.6
0.6
65
90
100
13
18
1
1.1
70
100
110
16
20
75
105
115
80
Cr
Cor
Abutment and
fillet dimensions
mm
da
Da
ras
max
max
54.5
55.5
67.5
74.5
0.6
1
14
16.5
0.141
0.256
HSB911C
HSB011C
60.5
62
74.5
83
1
1
15.5
18.5
0.192
0.397
17 000
16 000
HSB912C
HSB012C
65.5
67
79.5
88
1
1
16
19.5
0.206
0.425
12 000
11 000
16 000
15 000
HSB913C
HSB013C
70.5
72
84.5
93
1
1
17
20
0.22
0.452
11.1
10.8
11 000
10 000
15 000
14 000
HSB914C
HSB014C
75.5 94.5
77
103
1
1
19.5
22
0.362
0.64
1 880 1 470
3 200 2 290
11.2
10.9
10 000
9 500
14 000
13 000
HSB915C
HSB015C
80.5 99.5
82
108
1
1
20
22.5
0.383
0.68
15.4
25.7
1 930 1 570
3 650 2 620
11.3
10.9
9 600
8 900
13 000
12 000
HSB916C
HSB016C
85.5 104.5
87
118
1
1
20.5
24.5
0.405
0.915
22.7
36.5
18.3
26.8
2 320 1 860
3 700 2 740
11.2
10.9
9 000
8 400
12 000
11 000
HSB917C
HSB017C
92
92
1
1
22.5
25.5
0.578
0.959
0.6
1
23.4
42
19.5
31.5
2 380 1 980
4 300 3 200
11.3
10.9
8 500
7 900
11 000
11 000
HSB918C
HSB018C
97
118
98.5 131.5
1
1.5
23.5
27.5
0.607
1.25
1.1
1.5
0.6
1
24
42.5
20.6
32.5
2 440 2 110
4 350 3 350
11.3
11.0
8 100
7 500
11 000
10 000
HSB919C
HSB019C
102
123
103.5 136.5
1
1.5
24
28
0.636
1.3
20
24
1.1
1.5
0.6
1
33.5
44
28
35
3 450 2 850
4 500 3 600
11.2
11.0
7 600
7 100
10 000
9 500
HSB920C
HSB020C
107
133
108.5 141.5
1
1.5
26
28.5
0.856
1.36
145
160
20
26
1.1
2
0.6
1
34.5
50.5
29.7
40.5
3 550 3 050
5 150 4 150
11.2
11.0
7 300
6 700
9 700
9 000
HSB921C
HSB021C
112
115
138
150
1
2
26.5
31
0.893
1.73
150
170
20
28
1.1
2
0.6
1
35
62.5
30.5
49.5
3 550 3 150
6 400 5 000
11.3
10.9
6 900
6 400
9 200
8 600
HSB922C
HSB022C
117
120
143
160
1
2
27.5
33
0.928
2.13
1）Minimal allowable dimension for chamfer dimension r or r1.
Note: This bearing is manufactured with accuracies of JIS Class 5 or higher.
B-67
min
Load Mass
center
mm
kg
113
123
a
(approx.)
● Ultra-High Speed Angular Contact Ball Bearings
HSB type
B
r
r1
r1
r
φD
ra
ra
φd
φda
φDa
a
Dynamic equivalent radial load
Pr＝XFr＋YFa
Fa
Fa
fo・Fa
≦e
＞e
Fr
Fr
e
Cor
X Y X
Y
0.178 0.35
1.57
0.357 0.37
1.53
0.714 0.38
1.46
1.07 0.39
1.42
0 0.44 1.38
1.43 0.40 1
2.14 0.42
1.33
3.57 0.45
1.25
5.35 0.47
1.18
7.14 0.49
1.13
Static equivalent radial load
Por＝0.52Fr＋0.54Fa
When Por＜Fr use Por＝Fr
d 120 ∼ 170mm
Boundary dimensions
mm
d
D
Basic load ratings
Factor Limiting speeds
dynamic static dynamic static
kN
kgf
min-1
B rs min1）r1s min1）
Cr
Cor
Cr
Cor
grease
fo
Bearing
numbers
oil
Abutment and
fillet dimensions
mm
da
Da
ras
min
120
165
180
22
28
1.1
2
0.60 41
1
63
36.5
51.5
4 150 3 750
6 450 5 250
11.3
11.0
6 300
5 900
8 500
7 900
HSB924C
HSB024C
127
130
130
180
200
24
33
1.5
2
1
1
48.5
90.5
45
71
4 950 4 600
9 250 7 250
11.3
10.8
5 800
5 400
7 800
7 200
HSB926C
HSB026C
140
190
210
24
33
1.5
2
1
1
48.5
93.5
46.5
77
4 950 4 750
9 550 7 850
11.3
10.9
5 400
5 000
7 100
6 700
150
210
225
28
35
2
2.1
1
1.1
68
96.5
63
83
6 950 6 400
9 850 8 450
11.2
11.0
5 000
4 600
160
220
240
28
38
2
2.1
1
69.5
1.1 113
66.5
97
7 100 6 800
11 500 9 850
11.3
11.0
170
230
260
28
42
2
2.1
1
71
1.1 129
70.5
111
7 250 7 200
13 200 11 300
11.3
10.9
max
max
a
(approx.)
1
2
30
34
1.27
2.28
138.5 171.5
140
190
1.5
2
33
38.5
1.69
3.40
HSB928C
HSB028C
148.5 181.5
150
200
1.5
2
34
40
1.8
3.68
6 700
6 200
HSB930C
HSB030C
160
162
200
213
2
2
38
42.5
2.74
4.46
4 600
4 300
6 200
5 800
HSB932C
HSB032C
170
172
210
228
2
2
39.5
46
2.89
5.46
4 400
4 100
5 800
5 400
HSB934C
HSB034C
180
182
220
248
2
2
41
50
3.04
7.37
1）Minimal allowable dimension for chamfer dimension r or r1.
Note: This bearing is manufactured with accuracies of JIS Class 5 or higher.
B-68
158
170
Load Mass
center
mm
kg
B-69
● Ceramic Ball Angular Contact Ball Bearings
5S-BNT type
B
r
ra
r
r1
ra
r
φd
φD
φDa
φda
a
d 10 ∼ 45mm
Basic dynamic load ratings2） Bearing
(approx.)
numbers
kN
kgf
Boundary dimensions
mm
d
D
B
rs min1）
rls min1）
Cr
Cr
da
Abutment and
fillet dimensions
mm
Da
Load
center
mm
Mass
ras
min
max
max
a
(approx.)
kg
10
26
30
8
9
0.3
0.6
0.15
0.3
3.75
4.95
385
500
5S-BNT000
5S-BNT200
12.5
14.5
23.5
25.5
0.3
0.6
6.5
7
0.013
0.016
12
28
32
8
10
0.3
0.6
0.15
0.3
4.15
5.40
420
550
5S-BNT001
5S-BNT201
14.5
16.5
25.5
27.5
0.3
0.6
6.5
8
0.018
0.021
15
32
35
9
11
0.3
0.6
0.15
0.3
4.75
6.85
485
700
5S-BNT002
5S-BNT202
17.5
19.5
29.5
30.5
0.3
0.6
7.5
9
0.026
0.03
17
35
40
10
12
0.3
0.6
0.15
0.3
5.90
8.55
600
870
5S-BNT003
5S-BNT203
19.5
21.5
32.5
35.5
0.3
0.6
8.5
10
0.029
0.046
20
42
47
12
14
0.6
1
0.3
0.6
8.00
11.2
815
1 140
5S-BNT004
5S-BNT204
24.5
25.5
37.5
41.5
0.6
1
10
11.5
0.05
0.08
25
47
52
12
15
0.6
1
0.3
0.6
8.95
12.7
910
1 290
5S-BNT005
5S-BNT205
29.5
30.5
42.5
46.5
0.6
1
11
12.5
0.059
0.113
30
55
62
13
16
1
1
0.6
0.6
11.6
17.6
1 180
1 800
5S-BNT006
5S-BNT206
35.5
35.5
49.5
56.5
1
1
12.5
14
0.097
0.113
35
62
72
14
17
1
1.1
0.6
0.6
14.6
23.2
1 490
2 370
5S-BNT007
5S-BNT207
40.5
42
56.5
65
1
1
13.5
15.5
0.128
0.255
40
68
80
15
18
1
1.1
0.6
0.6
15.7
27.8
1 600
2 830
5S-BNT008
5S-BNT208
45.5
47
62.5
73
1
1
14.5
17
0.162
0.331
45
75
85
16
19
1
1.1
0.6
0.6
18.6
31.0
1 900
3 200
5S-BNT009
5S-BNT209
50.5
52
69.5
78
1
1
16
18
0.208
0.374
1）Minimal allowable dimension for chamfer dimension r or r1.
2）Basic rated dynamic load for bearings with ceramic balls is not stipulated by JIS. In NTN wear life testing, these bearings displayed the same wear life
as steel angular contact ball bearings; therefore, the values for steel bearings have been given as reference.
B-70
● Ceramic Ball Angular Contact Ball Bearings
5S-HSB type
B
r
r1
r1
r
φD
ra
ra
φd
φDa
φda
a
d 50 ∼ 120mm
Basic dynamic load ratings2） Bearing
(approx.)
numbers
kN
kgf
Boundary dimensions
mm
d
D
B
rs min1）
rls min1）
Cr
Cr
da
Abutment and
fillet dimensions
mm
Da
ras
min
max
max
Load
center
mm
Mass
a
(approx.)
kg
50
72
80
12
16
0.6
1
0.3
0.6
10.6
20.8
1 080
2 120
5S-HSB910C
5S-HSB010C
54.5
55.5
67.5
74.5
0.6
1
14
16.5
0.134
0.234
55
80
90
13
18
1
1.1
0.6
0.6
13.5
22.6
1 380
2 300
5S-HSB911C
5S-HSB011C
60.5
62
74.5
83
1
1
15.5
18.5
0.18
0.372
60
85
95
13
18
1
1.1
0.6
0.6
13.9
23.7
1 420
2 410
5S-HSB912C
5S-HSB012C
65.5
67
79.5
88
1
1
16
19.5
0.194
0.398
65
90
100
13
18
1
1.1
0.6
0.6
14.3
24.0
1 460
2 450
5S-HSB913C
5S-HSB103C
70.5
72
84.5
93
1
1
17
20
0.207
0.423
70
100
110
16
20
1
1.1
0.6
0.6
18.0
29.4
1 830
3 000
5S-HSB914C
5S-HSB014C
75.5
77
94.5
103
1
1
19.5
22
0.343
0.601
75
105
115
16
20
1
1.1
0.6
0.6
18.5
31.5
1 880
3 200
5S-HSB915C
5S-HSB015C
80.5
82
99.5
108
1
1
20
22.5
0.363
0.636
80
110
125
16
22
1
1.1
0.6
0.6
18.9
36.0
1 930
3 650
5S-HSB916C
5S-HSB016C
85.5
87
104.5
118
1
1
20.5
24.5
0.384
0.86
85
120
130
18
22
1.1
1.1
0.6
0.6
22.7
36.5
2 320
3 700
5S-HSB917C
5S-HSB017C
92
92
113
123
1
1
22.5
25.5
0.55
0.901
90
125
140
18
24
1.1
1.5
0.6
1
23.4
42.0
2 380
4 300
5S-HSB918C
5S-HSB018C
97
98.5
118
131.5
1
1.5
23.5
27.5
0.577
1.18
95
130
145
18
24
1.1
1.5
0.6
1
24.0
42.5
2 440
4 350
5S-HSB919C
5S-HSB019C
102
103.5
123
136.5
1
1.5
24
28
0.604
1.23
100
140
150
20
24
1.1
1.5
0.6
1
33.5
44.0
3 450
4 500
5S-HSB920C
5S-HSB020C
107
108.5
133
141.5
1
1.5
26
28.5
0.837
1.28
105
145
160
20
26
1.1
2
0.6
1
34.5
50.5
3 550
5 150
5S-HSB921C
5S-HSB021C
112
115
138
150
1
2
26.5
31
0.837
1.63
110
150
170
20
28
1.1
2
0.6
1
35.0
62.5
3 550
6 400
5S-HSB922C
5S-HSB022C
117
120
143
160
1
2
27.5
33
0.87
1.99
120
165
180
22
28
1.1
2
0.6
1
41.0
63.0
4 150
6 450
5S-HSB924C
5S-HSB024C
127
130
158
170
1
2
30
34
1.2
2.13
1）Minimal allowable dimension for chamfer dimension r or r1. 2）Basic rated dynamic load for bearings with ceramic balls is not stipulated by JIS. In NTN fatigue life tests, these
bearings achieved the same fatigue life as steel angular contact ball bearings; therefore, the values for steel bearings have been given as reference.
Note: For bearings with a bore diameter larger than 120mm, consult NTN Engineering.
B-71
● Four-Point Contact Ball Bearings
QJ type
B
ra
r
r
ra
φD
φd
φda
φDa
Dynamic equivalent
axial load
Pa＝Fa
Static equivalent
axial load
Poa＝ Fa
a
d 30 ∼ 90mm
Boundary dimensions
mm
Basic load ratings
dynamic static dynamic
kN
kgf
rs min1）
Limiting speeds
static
min-1
Ca
Coa
Ca
Coa
grease
oil
1.1
39.5
57.5
4 050
5 850
8 000
11 000
21
1.5
49.5
73.0
5 050
7 450
7 000
80
90
18
23
1.1
1.5
44.0
60.5
70.5
91.5
4 500
6 200
7 200
9 350
45
85
100
19
25
1.1
1.5
49.5
81.0
79.0 121
5 050
8 050
50
90
110
20
27
1.1
2
52.0
89.0
92.0 145
55
100
120
21
29
1.5
2
60
110
130
22
31
65
120
140
70
d
D
B
30
72
19
35
80
40
Bearing
numbers
Abutment and
fillet dimensions
mm
da
Da
ras
Load
center
mm
a
Mass
kg
min
max
max
QJ306
37
65
1
30
0.42
9 300
QJ307
43.5
71.5
1.5
33
0.57
6 900
6 200
9 200
8 200
QJ208
QJ308
47
48.5
73
81.5
1
1.5
34.5
37.5
0.45
0.78
8 250
12 300
6 200
5 500
8 200
7 400
QJ209
QJ309
52
53.5
78
91.5
1
1.5
37.5
42
0.52
1.05
5 300
9 400
9 050
14 700
5 600
5 000
7 500
6 700
QJ210
QJ310
57
60
83
100
1
2
40.5
46
0.603
1.38
64.0 112
106
170
6 550
10 900
11 400
17 400
5 100
4 600
6 800
6 100
QJ211
QJ311
63.5
65
91.5
110
1.5
2
44.5
50.5
0.78
1.76
1.5
2.1
77.5 138
122
198
7 900
12 400
14 000
20 200
4 700
4 200
6 300
5 700
QJ212
QJ312
68.5
72
101.5
118
1.5
2
49
55
0.98
2.18
23
33
1.5
2.1
84.5 153
138
228
8 600
14 100
15 600
23 200
4 400
3 900
5 800
5 200
QJ213
QJ313
73.5
77
111.5
128
1.5
2
53.5
59
1.24
2.7
125
150
24
35
1.5
2.1
92.0 168
155
260
9 350
15 800
17 200
26 500
4 000
3 600
5 400
4 800
QJ214
QJ314
78.5
82
116.5
138
1.5
2
56.5
63.5
1.36
3.27
75
130
160
25
37
1.5
2.1
96.0 183
169
294
9 750
17 200
18 600
30 000
3 800
3 400
5 000
4 500
QJ215
QJ315
83.5
87
121.5
148
1.5
2
59
68
1.53
3.9
80
140
170
26
39
2
2.1
112
183
217
330
11 400
18 600
22 100
33 500
3 500
3 200
4 700
4 200
QJ216
QJ316
90
92
130
158
2
2
63.5
72
1.83
4.64
85
150
180
28
41
2
3
126
197
252
370
12 800
20 100
25 700
37 500
3 300
3 000
4 400
4 000
QJ217
QJ317
95
99
140
166
2
2.5
68
76.5
2.3
5.43
90
160
190
30
43
2
3
148
212
293
410
15 100
21 600
29 900
41 500
3 100
2 800
4 200
3 800
QJ218 100
QJ318 104
150
176
2
2.5
72
81
2.76
6.31
1）Smallest allowable dimension for chamfer dimension r.
Note: 1. These bearings are also manufactured with a slot in the chamfer section of the outer ring to stop whirling.
2. This bearing is widely used in applications where the only type of load is axial. When considering it for use where radial loads are applied,
consult NTN Engineering.
B-72
(approx.)
● Four-Point Contact Ball Bearings
QJ type
B
ra
r
r
ra
φD
φd
φda
φDa
Dynamic equivalent
axial load
Pa＝Fa
Static equivalent
axial load
Poa＝ Fa
a
d 95 ∼ 120mm
Boundary dimensions
mm
d
Basic load ratings
dynamic static dynamic
kN
kgf
rs min1）
oil
34 000
46 000
3 000
2 700
18 400
27 800
36 000
59 500
400
585
20 100
27 900
213
305
450
680
240
325
540
765
B
170
200
32
45
2.1
3
168
227
335
450
17 200
23 100
180
34
47
2.1
3
181
273
355
585
190
36
49
2.1
3
197
273
110 240
200
38
50
2.1
3
215
40
55
2.1
3
100 215
105 225
120 260
min-1
grease
D
95
Limiting speeds
static
Ca
Coa
Ca
Coa
Bearing
numbers
Abutment and
fillet dimensions
mm
da
Da
ras
Load
center
mm
Mass
kg
min
max
max
a
3 900
3 500
QJ219 107
QJ319 109
158
186
2
2.5
76.5
85
3.35
7.41
2 800
2 500
3 700
3 400
QJ220 112
QJ320 114
168
201
2
2.5
81
91
4.02
9.14
41 000
59 500
2 700
2 400
3 600
3 200
QJ221 117
QJ321 119
178
211
2
2.5
85
4.75
95.5 10.4
21 700
31 000
45 500
69 500
2 500
2 300
3 400
3 100
QJ222 122
QJ322 124
188
226
2
89.5 5.62
2.5 101 12
24 500
33 000
55 000
78 000
2 300
2 100
3 100
2 800
QJ224 132
QJ324 134
203
246
2
96.5 6.75
2.5 110 15.9
1）Smallest allowable dimension for chamfer dimension r.
Note: 1. These bearings are also manufactured with a slot in the chamfer section of the outer ring to stop whirling.
2. This bearing is widely used in applications where the only type of load is axial. When considering it for use where radial loads are applied,
consult NTN Engineering.
B-73
(approx.)
● Double Row Angular Contact Ball Bearings
B
ra
r
ra
r
φD
φd
φDa
Dynamic equivalent
radial load
Pr＝XFr＋YFa
Fa
Fa
≦e
＞e
Fr
Fr
e
X
Y
X
Y
0.68 1 0.92 0.67 1.41
φda
Static equivalent
radial load
Por＝Fr＋0.76Fa
a
d 10 ∼ 65mm
Boundary dimensions
dynamic
mm
Basic load ratings
static
dynamic
static
kN
kgf
rs min1）
Cr
Cor
14.3
0.6
7.15
3.90
730
32
15.9
0.6
10.5
5.80
15
35
42
15.9
19
0.6
1
11.7
17.6
17
40
47
17.5
22.2
0.6
1
20
47
52
20.6
22.2
25
52
62
30
Limiting speeds
min-1
grease
oil
400
17 000
22 000
1 070
590
15 000
7.05
10.2
1 190
1 800
715
1 040
14.6
21.0
9.05
12.6
1 490
2 140
1
1.1
19.6
24.6
12.4
15.0
20.6
25.4
1
1.1
21.3
32.5
62
72
23.8
30.2
1
1.1
35
72
80
27
34.9
40
80
90
45
d
D
B
10
30
12
Cr
Bearing
numbers
Cor
Abutment and
fillet dimensions
mm
da
Da
ras
Load Mass
center
mm
kg
min
max
max
a
(approx.)
5200S
15
25
0.6
14.5
0.05
20 000
5201S
17
27
0.6
16.7
0.06
13 000
11 000
17 000
15 000
5202S
5302S
20
21
30
36
0.6
1
18.3
22.0
0.07
0.11
920
1 280
11 000
10 000
15 000
13 000
5203S
5303S
22
23
35
41
0.6
1
20.8
25.0
0.09
0.14
2 000
2 510
1 270
1 530
10 000
9 000
13 000
12 000
5204S
5304S
26
27
41
45
1
1
24.3
26.7
0.12
0.23
14.7
20.7
2 170
3 350
1 500
2 110
8 500
7 500
11 000
10 000
5205S
5305S
31
32
46
55
1
1
26.8
31.8
0.19
0.34
29.6
40.5
21.1
28.1
3 000
4 150
2 150
2 870
7 100
6 300
9 500
8 500
5206S
5306S
36
37
56
65
1
1
31.6
36.5
0.29
0.51
1.1
1.5
39.0
51.0
28.7
36.0
4 000
5 200
2 920
3 700
6 300
5 600
8 000
7 500
5207S
5307S
42
44
65
71
1
1.5
36.6
41.6
0.43
0.79
30.2
36.5
1.1
1.5
44.0
56.5
33.5
41.0
4 500
5 800
3 400
4 200
5 600
5 300
7 100
6 700
5208S
5308S
47
49
73
81
1
1.5
41.5
45.5
0.57
1.05
85
100
30.2
39.7
1.1
1.5
49.5
68.5
38.0
51.0
5 050
7 000
3 900
5 200
5 000
4 500
6 700
6 000
5209S
5309S
52
54
78
91
1
1.5
43.4
50.6
0.62
1.40
50
90
110
30.2
44.4
1.1
2
53.0
81.5
43.5
61.5
5 400
8 300
4 400
6 250
4 800
4 300
6 000
5 600
5210S
5310S
57
60
83
100
1
2
45.9
55.6
0.67
1.95
55
100
120
33.3
49.2
1.5
2
56.0
95.0
49.0
73.0
5 700
9 700
5 000
7 450
4 300
3 800
5 600
5 000
5211S
5311S
64
65
91
110
1.5
2
50.1
60.6
0.96
2.30
60
110
130
36.5
54
1.5
2.1
69.0
125
62.0
98.5
7 150
12 800
6 300
10 000
3 800
3 400
5 000
4 500
5212S
5312S
69
72
101
118
1.5
2
56.5
69.2
1.35
3.15
65
120
140
38.1
58.7
1.5
2.1
76.5
142
69.0
113
7 800
14 500
7 050
11 500
3 600
3 200
4 500
4 300
5213S
5313S
74
77
111
128
1.5
2
59.7
72.8
1.65
3.85
1）Smallest allowable dimension for chamfer dimension r.
B-74
● Double Row Angular Contact Ball Bearings
B
ra
r
ra
r
φD
φd
φDa
Dynamic equivalent
radial load
Pr＝XFr＋YFa
Fa
Fa
≦e
＞e
Fr
Fr
e
X
Y
X
Y
0.68 1 0.92 0.67 1.41
φda
Static equivalent
radial load
Por＝Fr＋0.76Fa
a
d 70 ∼ 85mm
Boundary dimensions
mm
rs min1）
Basic load ratings
dynamic
static
dynamic
static
kN
kgf
Limiting speeds
min-1
Cr
Cor
grease
oil
82.0
128
9 600
16 200
8 400
13 100
3 400
3 000
4 500
3 800
93.5
83.0
9 550
8 500
3 200
99.0
93.0
10 100
9 500
11 800
11 200
d
D
B
Cr
70
125
150
39.7
63.5
1.5
2.1
94.0
159
75
130
41.3
1.5
80
140
44.4
2
85
150
49.2
2
116
Cor
110
Bearing
numbers
1）Smallest allowable dimension for chamfer dimension r.
B-75
Abutment and
fillet dimensions
mm
da
Da
ras
Load Mass
center
mm
kg
min
max
max
a
(approx.)
5214S
5314S
79
82
116
138
1.5
2
63.8
78.3
1.80
4.90
4 300
5215S
84
121
1.5
66.1
1.90
3 000
3 800
5216S
90
130
2
69.6
2.50
2 800
3 600
5217S
95
140
2
75.3
3.40
● Double Row Angular Contact Ball Bearings
B
r
r
φD
φd
a
Shielded type
(ZZ)
Non-contact sealed type
(LLM)
Contact sealed type
(LLD)
d 10 ∼ 40mm
Boundary dimensions
mm
Basic load ratings
dynamic static
dynamic
static
kN
kgf
min-1
grease
rs min1）
d
D
B
10
30
14.3
0.6
12
32
15.9
15
35
17
Cr
Cor
Cr
Cor
7.15
3.90
730
0.6
8.50
5.30
15.9
0.6
8.50
40
47
17.5
22.2
0.6
1
20
47
20.6
25
52
62
30
Bearing numbers2）
Limiting speeds
oil
sealed
non-contact contact
type
type
ZZ,LLM
LLD
Z,LM
400
17 000
15 000
22 000
5200SCZZ
LLM
LLD
865
540
15 000
12 000
20 000
5201SCZZ
LLM
LLD
5.30
865
540
13 000
12 000
17 000
5202SCZZ
LLM
LLD
12.7
19.6
8.30
12.4
1 290
2 000
850
1 270
11 000
10 000
10 000
9 500
15 000
13 000
5203SCZZ
5303SCZZ
LLM
LLM
LLD
LLD
1
15.9
10.7
1 620
1 090
10 000
9 000
13 000
5204SCZZ
LLM
LLD
20.6
25.4
1
1.1
16.9
25.2
12.3
18.2
1 730
2 570
1 260
1 850
8 500
7 500
7 500
6 300
11 000
10 000
5205SCZZ 3） LLM
5305SCZZ
LLM
LLD
LLD
62
72
23.8
30.2
1
1.1
25.2
39.0
18.2
28.7
2 570
4 000
1 850
2 920
7 100
6 300
6 300
5 300
9 500
8 500
5206SCZZ
5306SCZZ
LLM
LLM
LLD
LLD
35
72
80
27.0
34.9
1.1
1.5
34.0
44.0
25.3
33.5
3 500
4 500
2 580
3 400
6 300
5 600
5 300
4 800
8 500
7 500
5207SCZZ
5307SCZZ
LLM
LLM
LLD
LLD
40
80
90
30.2
36.5
1.1
1.5
36.5
49.5
29.0
38.0
3 700
5 050
2 960
3 900
5 600
5 300
4 800
4 500
7 100
6 700
5208SCZZ 3） LLM
5308SCZZ
LLM
LLD
LLD
1）Smallest allowable dimension for chamfer dimension r.
2）This bearing number is for double sealed and double shielded type bearings, but single sealed and single shielded type are also available.
3）Resin formed cage is standard for 5205SC and 5208SC.
B-76
● Double Row Angular Contact Ball Bearings
Dynamic equivalent
radial load
Pr＝XFr＋YFa
Fa
Fa
≦e
＞e
Fr
Fr
e
X
Y
X
Y
0.68 1 0.92 0.67 1.41
Static equivalent
radial load
Por＝Fr＋0.76Fa
ra
ra
φDa
φda
Abutment and fillet dimensions
mm
da
Load
center
mm
Da
ras
min
max
max
max
a
14
15.5
26
0.6
14.5
16
19.0
28
0.6
16.3
19
19.0
31
0.6
16.3
21
23
23.5
25.5
36
41
0.6
1
20.1
24.3
26
26.5
41
1
23.0
31
32
32.0
38.5
46
55
1
1
25.4
30.9
36
37
38.5
44.5
56
65
1
1
30.9
36.6
42
44
45.0
50.5
65
71
1
1.5
36.3
41.5
47
49
50.5
53.0
73
81
1
1.5
39.4
43.0
B-77
●Self-Aligning Ball Bearings
1. Design features and characteristics
3. Ball protrusion
The outer ring raceway of self-aligning ball bearings forms
a spherical surface whose center is common to the bearing
center. The inner ring of the bearing has two raceways. The
balls, cage, and inner ring of these bearings are capable of a
shifting in order to compensate for a certain degree of
misalignment with the outer rings. As a result, the bearing is
able to align itself and compensate for shaft / housing
finishing unevenness, bearing fitting error, and other sources
of misalignment as shown in Diagram 1.
However, since axial load capacity is limited, self-aligning
ball bearings are not suitable for applications with heavy
axial loads.
Furthermore, if an adapter is used on the tapered bore of
the inner diameter, installation and disassembly are much
simpler and for this reason adapters are often used on
equipment with drive shafts.
Bearings with part numbers listed in Diagram 2 below
have balls which protrude slightly from the bearing face.
B1
B
Diagram 2.
their degree of protrusion is listed below
Units mm
Allowable
misalignment
Bearing number
Width
dimension B
Total width
dimension B1
2222S (K)
53
54
2316S (K)
58
59
2319S (K)
67
68
2320S (K)
73
74
2321S
77
78
2322S (K)
80
81
1318S (K)
43
46
1319S (K)
45
49
1320S (K)
47
53
1321S
49
55
1322S (K)
50
56
Diagram 1.
4. Allowable misalignment angle
2. Standard cage types
Listed below are the allowable misalignment angles for
bearings with self-aligning characteristics when placed
under normal load conditions. This degree of allowable
misalignment may be limited by the design of structures
around the bearing.
All bearing series are equipped with a pressed cage,
except 2322S, which is equipped with a machined cage.
Allowable misalignment under normal loads (loads
equivalent to 0.09 Cr): 0.07 rad (4˚)
B-79
● Self-Aligning Ball Bearings
B
ra
r
ra
r
φd
φd
φD
Cylindrical bore
φDa
φda
Tapered bore
d 10 ∼ 35mm
Boundary dimensions
mm
d
D
B
rs min1）
10
30
30
35
35
9
14
11
17
12
32
32
37
37
Basic load ratings
dynamic static
dynamic static
kN
kgf
Limiting speeds
Bearing numbers
min-1
cylindrical tapered2）
bore
bore
Cr
Cor
grease
oil
1.19
1.59
1.62
2.01
570
760
750
935
121
162
165
205
22 000
24 000
20 000
18 000
28 000
28 000
24 000
22 000
1200S
2200S
1300S
2300S
5.70
7.75
9.65
12.1
1.27
1.73
2.16
2.73
580
790
985
1 240
130
177
221
278
22 000
22 000
18 000
17 000
26 000
26 000
22 000
22 000
0.6
0.6
1
1
7.60
7.80
9.70
12.3
1.75
1.85
2.29
2.91
775
795
990
1 250
179
188
234
296
18 000
18 000
16 000
14 000
12
16
14
19
0.6
0.6
1
1
8.00
9.95
12.7
14.7
2.01
2.42
3.20
3.55
815
1 010
1 300
1 500
205
247
325
365
20
47
47
52
52
14
18
15
21
1
1
1.1
1.1
10.0
12.8
12.6
18.5
2.61
3.30
3.35
4.70
1 020
1 310
1 280
1 880
25
52
52
62
62
15
18
17
24
1
1
1.1
1.1
12.2
12.4
18.2
24.9
3.30
3.45
5.00
6.60
30
62
62
72
72
16
20
19
27
1
1
1.1
1.1
15.8
15.3
21.4
32.0
35
72
72
80
80
17
23
21
31
1.1
1.1
1.5
1.5
15.9
21.7
25.3
40.0
Cr
Cor
0.6
0.6
0.6
0.6
5.55
7.45
7.35
9.20
10
14
12
17
0.6
0.6
1
1
15
35
35
42
42
11
14
13
17
17
40
40
47
47
Abutment and
fillet dimensions
mm
da
Da
ras
min
max
max
―
―
―
―
14.0
14.0
14.0
14.0
26.0
26.0
31.0
31.0
0.6
0.6
0.6
0.6
1201S
2201S
1301S
2301S
―
―
―
―
16.0
16.0
17.0
17.0
28.0
28.0
32.0
32.0
0.6
0.6
1
1
22 000
22 000
20 000
18 000
1202S
2202S
1302S
2302S
―
―
―
―
19.0
19.0
20.0
20.0
31.0
31.0
37.0
37.0
0.6
0.6
1
1
16 000
16 000
14 000
13 000
20 000
20 000
17 000
16 000
1203S
2203S
1303S
2303S
―
―
―
―
21.0
21.0
22.0
22.0
36.0
36.0
42.0
42.0
0.6
0.6
1
1
266
340
340
480
14 000
14 000
12 000
11 000
17 000
17 000
15 000
14 000
1204S
2204S
1304S
2304S
1204SK
2204SK
1304SK
2304SK
25.0
25.0
26.5
26.5
42.0
42.0
45.5
45.5
1
1
1
1
1 250
1 270
1 850
2 530
335
350
510
675
12 000
12 000
10 000
9 500
14 000
14 000
13 000
12 000
1205S
2205S
1305S
2305S
1205SK
2205SK
1305SK
2305SK
30.0
30.0
31.5
31.5
47.0
47.0
55.5
55.5
1
1
1
1
4.65
4.55
6.30
8.75
1 610
1 560
2 190
3 250
475
460
645
895
10 000
10 000
8 500
8 000
12 000
12 000
11 000
10 000
1206S
2206S
1306S
2306S
1206SK
2206SK
1306SK
2306SK
35.0
35.0
36.5
36.5
57.0
57.0
65.5
65.5
1
1
1
1
5.10
6.60
7.85
11.3
1 620
2 210
2 580
4 100
520
675
800
1 150
8 500
8 500
7 500
7 100
10 000
10 000
9 500
9 000
1207S
2207S
1307S
2307S
1207SK
2207SK
1307SK
2307SK
41.5
41.5
43.0
43.0
65.5
65.5
72.0
72.0
1
1
1.5
1.5
1）Smallest allowable dimension for chamfer dimension r. 2）"K" indicates bearings have tapered bore with a taper ratio of 1: 12.
B-80
● Self-Aligning Ball Bearings
Equivalent bearing load
dynamic
Pr＝XFr＋YFa
Fa
Fa
Fr ≦e
Fr ＞e
X Y
X Y
1 Y1 0.65 Y2
static
Por＝Fr＋Yo Fa
Y1，Y2 and Yo
For values of e，
see the table below.
Constant
Axial load factors
e
Y1
0.32
0.64
0.35
0.71
2.00
0.98
1.80
0.89
0.36
0.58
0.33
0.60
Y2
Mass
kg
Yo
(approx.)
3.10
1.50
2.80
1.40
2.10
1.00
1.90
0.93
0.033
0.042
0.057
0.077
1.80
1.10
1.90
1.10
2.70
1.70
2.90
1.60
1.80
1.10
2.00
1.10
0.039
0.048
0.066
0.082
0.32
0.50
0.33
0.51
2.00
1.30
1.90
1.20
3.10
1.90
2.90
1.90
2.10
1.30
2.00
1.30
0.051
0.055
0.093
0.108
0.31
0.50
0.32
0.51
2.00
1.30
2.00
1.20
3.10
1.90
3.10
1.90
2.10
1.30
2.10
1.30
0.072
0.085
0.130
0.150
0.29
0.47
0.29
0.50
2.20
1.30
2.20
1.20
3.40
2.10
3.40
1.90
2.30
1.40
2.30
1.30
0.120
0.133
0.15
0.193
0.28
0.41
0.28
0.47
2.30
1.50
2.30
1.40
3.50
2.40
3.50
2.10
2.40
1.60
2.40
1.40
0.140
0.150
0.255
0.319
0.25
0.38
0.26
0.44
2.50
1.60
2.40
1.40
3.90
2.50
3.70
2.20
2.60
1.70
2.50
1.50
0.220
0.249
0.385
0.480
0.23
0.37
0.26
0.46
2.70
1.70
2.50
1.40
4.20
2.60
3.80
2.10
2.80
1.80
2.60
1.40
0.320
0.378
0.510
0.642
B-81
● Self-Aligning Ball Bearings
B
ra
r
ra
r
φd
φd
φD
Cylindrical bore
φDa
φda
Tapered bore
d 40 ∼ 75mm
Boundary dimensions
mm
d
D
B
rs min1）
40
80
80
90
90
18
23
23
33
1.1
1.1
1.5
1.5
45
85
85
100
100
19
23
25
36
50
90
90
110
110
Basic load ratings
dynamic static
dynamic static
kN
kgf
Limiting speeds
Bearing numbers
min-1
cylindrical tapered2）
bore
bore
Cor
Cr
Cor
grease
oil
19.3
22.4
29.8
45.5
6.50
7.35
9.70
13.5
1 970
2 290
3 050
4 650
665
750
990
1 380
7 500
7 500
6 700
6 300
9 000
9 000
8 500
8 000
1208S
2208S
1308S
2308S
1.1
1.1
1.5
1.5
22.0
23.3
38.5
55.0
7.35
8.15
12.7
16.7
2 240
2 380
3 900
5 600
750
830
1 300
1 700
7 100
7 100
6 000
5 600
8 500
8 500
7 500
7 100
20
23
27
40
1.1
1.1
2
2
22.8
23.3
43.5
65.0
8.10
8.45
14.1
20.2
2 330
2 380
4 450
6 650
830
865
1 440
2 060
6 300
6 300
5 600
5 000
55
100
100
120
120
21
25
29
43
1.5
1.5
2
2
26.9
26.7
51.5
76.5
10.0
9.90
17.9
24.0
2 750
2 720
5 250
7 800
1 020
1 010
1 820
2 450
60
110
110
130
130
22
28
31
46
1.5
1.5
2.1
2.1
30.5
34.0
57.5
88.5
11.5
12.6
20.8
28.3
3 100
3 500
5 900
9 000
65
120
120
140
140
23
31
33
48
1.5
1.5
2.1
2.1
31.0
43.5
62.5
97.0
12.5
16.4
22.9
32.5
70
125
125
150
150
24
31
35
51
1.5
1.5
2.1
2.1
35.0
44.0
75.0
111
75
130
130
160
160
25
31
37
55
1.5
1.5
2.1
2.1
39.0
44.5
80.0
125
Cr
Abutment and
fillet dimensions
mm
da
Da
ras
min
max
max
1208SK
2208SK
1308SK
2308SK
46.5
46.5
48.0
48.0
73.5
73.5
82.0
82.0
1
1
1.5
1.5
1209S
2209S
1309S
2309S
1209SK
2209SK
1309SK
2309SK
51.5
51.5
53.0
53.0
78.5
78.5
92.0
92.0
1
1
1.5
1.5
8 000
8 000
6 700
6 300
1210S
2210S
1310S
2310S
1210SK
2210SK
1310SK
2310SK
56.5 83.5
56.5 83.5
59.0 101
59.0 101
1
1
2
2
6 000
6 000
5 000
4 800
7 100
7 100
6 300
6 000
1211S
2211S
1311S
2311S
1211SK
2211SK
1311SK
2311SK
63.0 92.0
63.0 92.0
64.0 111
64.0 111
1.5
1.5
2
2
1 180
1 290
2 130
2 880
5 300
5 300
4 500
4 300
6 300
6 300
5 600
5 300
1212S
2212S
1312S
2312S
1212SK
2212SK
1312SK
2312SK
68.0
68.0
71.0
71.0
102
102
119
119
1.5
1.5
2
2
3 150
4 450
6 350
9 900
1 280
1 670
2 330
3 300
4 800
4 800
4 300
3 800
6 000
6 000
5 300
4 800
1213S
2213S
1313S
2313S
1213SK
2213SK
1313SK
2313SK
73.0
73.0
76.0
76.0
112
112
129
129
1.5
1.5
2
2
13.8
17.1
27.7
37.5
3 550
4 500
7 650
11 300
1 410
1 740
2 830
3 850
4 800
4 500
4 000
3 600
5 600
5 600
5 000
4 500
1214S
2214S
1314S
2314S
―
―
―
―
78.0
78.0
81.0
81.0
117
117
139
139
1.5
1.5
2
2
15.7
17.8
30.0
43.0
4 000
4 550
8 150
12 700
1 600
1 820
3 050
4 400
4 300
4 300
3 800
3 400
5 300
5 300
4 500
4 300
1215S
2215S
1315S
2315S
1215SK
2215SK
1315SK
2315SK
83.0
83.0
86.0
86.0
122
122
149
149
1.5
1.5
2
2
1）Smallest allowable dimension for chamfer dimension r. 2）"K" indicates bearings have tapered bore with a taper ratio of 1: 12.
B-82
● Self-Aligning Ball Bearings
Equivalent bearing load
dynamic
Pr＝XFr＋YFa
Fa
Fa
Fr ≦e
Fr ＞e
X Y
X Y
1 Y1 0.65 Y2
static
Por＝Fr＋Yo Fa
Y1，Y2 and Yo
For values of e，
see the table below.
Constant
e
Axial load factors
Y1
Y2
Mass
kg
Yo
(approx.)
0.22
0.33
0.24
0.43
2.8
1.9
2.6
1.5
4.3
3.0
4.0
2.3
2.9
2.0
2.7
1.5
0.415
0.477
0.715
0.889
0.21
0.30
0.25
0.41
3.0
2.1
2.6
1.5
4.7
3.2
4.0
2.4
3.1
2.2
2.7
1.6
0.465
0.522
0.955
1.200
0.21
0.28
0.23
0.42
3.1
2.2
2.7
1.5
4.7
3.4
4.2
2.3
3.2
2.3
2.8
1.6
0.525
0.564
1.250
1.580
0.20
0.28
0.23
0.41
3.2
2.3
2.7
1.5
4.9
3.5
4.2
2.4
3.3
2.4
2.8
1.6
0.705
0.746
1.600
2.030
0.18
0.28
0.23
0.40
3.4
2.3
2.8
1.6
5.3
3.5
4.3
2.4
3.6
2.4
2.9
1.6
0.900
1.030
2.030
2.570
0.17
0.28
0.23
0.39
3.7
2.3
2.7
1.6
5.7
3.5
4.2
2.5
3.8
2.4
2.9
1.7
1.150
1.400
2.540
3.200
0.18
0.26
0.22
0.38
3.4
2.4
2.8
1.7
5.3
3.7
4.4
2.6
3.6
2.5
3.0
1.8
1.300
1.520
3.190
3.900
0.17
0.25
0.22
0.38
3.6
2.5
2.8
1.6
5.6
3.9
4.4
2.5
3.8
2.6
2.9
1.7
1.410
1.600
3.650
4.770
B-83
● Self-Aligning Ball Bearings
B
ra
r
ra
r
φd
φd
φD
Cylindrical bore
φDa
φda
Tapered bore
d 80 ∼ 110mm
Boundary dimensions
mm
d
D
B
rs min1）
80
140
140
170
170
26
33
39
58
85
150
150
180
180
Basic load ratings
dynamic static
dynamic static
kN
kgf
Limiting speeds
Bearing numbers
min-1
cylindrical tapered2）
bore
bore
Cor
grease
oil
4 100
5 000
9 100
13 200
1 730
2 030
3 400
4 600
4 000
4 000
3 600
3 200
5 000
5 000
4 300
4 000
1216S
2216S
1316S
2316S
1216SK
2216SK
1316SK
2316SK
20.8
23.6
38.0
51.5
5 050
5 950
10 000
14 500
2 120
2 400
3 850
5 250
3 800
3 800
3 400
3 000
4 500
4 800
4 000
3 800
1217S
2217S
1317S
2317S
57.5
70.5
117
154
23.5
28.7
44.5
57.5
5 850
7 200
12 000
15 700
2 400
2 930
4 550
5 850
3 600
3 600
3 200
2 800
4 300
4 300
3 800
3 600
2.1
2.1
3
3
64.0
84.0
129
161
27.1
34.5
51.0
64.5
6 550
8 550
13 200
16 400
2 770
3 500
5 200
6 550
3 400
3 400
3 000
2 800
34
46
47
73
2.1
2.1
3
3
69.5
94.5
140
187
29.7
38.5
57.5
79.0
7 100
9 650
14 300
19 100
3 050
3 900
5 850
8 050
105
190
190
225
225
36
50
49
77
2.1
2.1
3
3
75.0
109
154
200
32.5
45.0
64.5
87.0
7 650
11 100
15 700
20 400
110
200
200
240
240
38
53
50
80
2.1
2.1
3
3
87.0
122
161
211
38.5
51.5
72.5
94.5
8 900
12 500
16 400
21 600
Cr
Cor
2
2
2.1
2.1
40.0
49.0
89.0
130
17.0
19.9
33.0
45.0
28
36
41
60
2
2
3
3
49.5
58.5
98.5
142
90
160
160
190
190
30
40
43
64
2
2
3
3
95
170
170
200
200
32
43
45
67
100
180
180
215
215
Cr
Abutment and
fillet dimensions
mm
da
Da
ras
max
max
89
89
91
91
131
131
159
159
2
2
2
2
1217SK
2217SK
1317SK
2317SK
94
94
98
98
141
141
167
167
2
2
2.5
2.5
1218S
2218S
1318S
2318S
1218SK
2218SK
1318SK
2318SK
99
99
103
103
151
151
177
177
2
2
2.5
2.5
4 000
4 000
3 600
3 400
1219S
2219S
1319S
2319S
1219SK
2219SK
1319SK
2319SK
106
106
108
108
159
159
187
187
2
2
2.5
2.5
3 200
3 200
2 800
2 400
3 800
3 800
3 400
3 200
1220S
2220S
1320S
2320S
1220SK
2220SK
1320SK
2320SK
111
111
113
113
169
169
202
202
2
2
2.5
2.5
3 300
4 550
6 600
8 850
3 000
3 000
2 600
2 400
3 600
3 600
3 200
3 000
1221S
2221S
1321S
2321S
―
―
―
―
116
116
118
118
179
179
212
212
2
2
2.5
2.5
3 950
5 250
7 300
9 650
2 800
2 800
2 400
2 200
3 400
3 400
3 000
2 800
1222S 1222SK
2222S 2222SK
1322S 1322SK
2322S3） 2322SK
121
121
123
123
189
189
227
227
2
2
2.5
2.5
1）Smallest allowable dimension for chamfer dimension r. 2）"K" indicates bearings have tapered bore with a taper ratio of 1: 12.
3）Machined cage is standard for 2322S (K).
B-84
min
● Self-Aligning Ball Bearings
Equivalent bearing load
dynamic
Pr＝XFr＋YFa
Fa
Fa
Fr ≦e
Fr ＞e
X Y
X Y
1 Y1 0.65 Y2
static
Por＝Fr＋Yo Fa
Y1，Y2 and Yo
For values of e，
see the table below.
Constant
Axial load factors
Mass
kg
e
Y1
Y2
Yo
0.16
0.25
0.22
0.39
3.9
2.5
2.9
1.6
6.0
3.9
4.5
2.5
4.1
2.7
3.1
1.7
1.73
1.97
4.31
5.54
0.17
0.25
0.21
0.37
3.7
2.5
2.9
1.7
5.7
3.9
4.6
2.6
3.8
2.6
3.1
1.8
2.09
2.48
5.13
6.56
0.17
0.27
0.22
0.38
3.8
2.4
2.8
1.7
5.8
3.7
4.3
2.6
3.9
2.5
2.9
1.7
2.55
3.13
5.94
7.76
0.17
0.27
0.23
0.38
3.7
2.4
2.8
1.7
5.8
3.7
4.3
2.6
3.9
2.5
2.9
1.8
3.21
3.87
6.84
9.01
0.17
0.27
0.24
0.38
3.6
2.4
2.7
1.7
5.6
3.7
4.1
2.6
3.8
2.5
2.8
1.8
3.82
4.53
8.46
11.6
0.18
0.28
0.23
0.38
3.6
2.3
2.7
1.7
5.5
3.5
4.2
2.6
3.7
2.4
2.9
1.7
4.52
5.64
10.0
14.4
0.18
0.28
0.22
0.37
3.7
2.2
2.8
1.7
5.7
3.5
4.4
2.6
3.9
2.3
3.0
1.8
5.33
6.64
12.0
17.4
(approx.)
B-85
● Adapters
(for self-aligning ball bearings)
B2
ra
S1
B1
φd1 φd2
φdb φda
φDa
d 17 ∼ 50mm
Boundary dimensions
mm
Bearing numbers
da
d1
B1
d2
B2
17
24
28
28
31
32
32
32
32
7
7
7
7
1204SK;H 204
2204SK;H 304
1304SK;H 304
2304SK;H2304
23
24
24
24
20
26
29
29
35
38
38
38
38
8
8
8
8
1205SK;H 205X
2205SK;H 305X
1305SK;H 305X
2305SK;H2305X
25
27
31
31
38
45
45
45
45
8
8
8
8
30
29
35
35
43
52
52
52
52
35
31
36
36
46
min
Abutment and fillet dimensions
mm
db
S1
Da
max
Mass1）
kg
ras
min
max
max
27
28
31
28
5
5
8
5
41
41
45
45
1
1
1
1
0.041
0.045
0.045
0.049
28
29
29
29
33
33
37
34
5
5
6
5
46
46
55
55
1
1
1
1
0.07
0.075
0.075
0.087
1206SK;H 206X
2206SK;H 306X
1306SK;H 306X
2306SK;H2306X
33
34
34
35
39
39
44
40
5
5
6
5
56
56
65
65
1
1
1
1
0.099
0.109
0.109
0.126
9
9
9
9
1207SK;H 207X
2207SK;H 307X
1307SK;H 307X
2307SK;H2307X
38
39
39
40
46
45
50
46
5
5
7
5
65
65
71.5
71.5
1
1
1.5
1.5
0.125
0.142
0.142
0.165
58
58
58
58
10
10
10
10
1208SK;H 208X
2208SK;H 308X
1308SK;H 308X
2308SK;H2308X
44
44
44
45
52
50
56
52
5
5
5
5
73
73
81.5
81.5
1
1
1.5
1.5
0.174
0.189
0.189
0.224
40
33
39
39
50
65
65
65
65
11
11
11
11
1209SK;H 209X
2209SK;H 309X
1309SK;H 309X
2309SK;H2309X
49
49
49
50
57
57
61
58
5
8
5
5
78
78
91.5
91.5
1
1
1.5
1.5
0.227
0.248
0.248
0.28
45
35
42
42
55
70
70
70
70
12
12
12
12
1210SK;H 210X
2210SK;H 310X
1310SK;H 310X
2310SK;H2310X
53
54
54
56
62
63
67
65
5
10
5
5
1
1
2
2
0.274
0.303
0.303
0.362
50
37
75
12
1211SK;H 211X
60
70
6
1.5
0.308
83
83
100
100
91.5
1）Refers to adapter mass.
Note: 1. For bearing dimensions, basic rated loads, and mass, refer to pages B-82 to B-84.
2. Adapters for series 12 bearings can also be used with H2 and H3 series bearings.
Caution: the B1 dimension of H3 series bearings is longer than that of H2 series bearings.
3. Adapter numbers which are appended with the code "X" indicate narrow slit type adapters which use washer with straight inner tabs.
4. For adapter locknut and washer dimensions, please refer to pages C-2 to C-7, and C-12 to C-14.
B-86
(approx.)
● Adapters
(for self-aligning ball bearings)
B2
ra
S1
B1
φd1 φd2
φdb φda
φDa
d 50 ∼ 85mm
Boundary dimensions
mm
Bearing numbers
da
d1
B1
d2
B2
50
45
45
59
75
75
75
12
12
12
2211SK;H 311X
1311SK;H 311X
2311SK;H2311X
60
60
61
55
38
47
47
62
80
80
80
80
13
13
13
13
1212SK;H 212X
2212SK;H 312X
1312SK;H 312X
2312SK;H2312X
60
40
50
50
65
85
85
85
85
14
14
14
14
65
43
55
55
73
98
98
98
98
70
46
59
59
78
min
Abutment and fillet dimensions
mm
db
S1
Da
max
Mass1）
kg
ras
min
max
max
69
73
71
11
6
6
91.5
110
110
1.5
2
2
0.345
0.345
0.42
64
65
65
66
76
75
79
77
5
9
5
5
101.5
101.5
118
118
1.5
1.5
2
2
0.346
0.394
0.394
0.481
1213SK;H 213X
2213SK;H 313X
1313SK;H 313X
2313SK;H2313X
70
70
70
72
83
81
85
84
5
8
5
5
111.5
111.5
128
128
1.5
1.5
2
2
0.401
0.458
0.458
0.557
15
15
15
15
1215SK;H 215X
2215SK;H 315X
1315SK;H 315X
2315SK;H2315X
80
80
80
82
93
93
97
96
5
12
5
5
121.5
121.5
148
148
1.5
1.5
2
2
0.707
0.831
0.831
1.05
105
105
105
105
17
17
17
17
1216SK;H 216X
2216SK;H 316X
1316SK;H 316X
2316SK;H2316X
85
86
86
87
100
98
103
103
5
12
5
5
130
130
158
158
2
2
2
2
0.882
1.03
1.03
1.28
75
50
63
63
82
110
110
110
110
18
18
18
18
1217SK;H 217X
2217SK;H 317X
1317SK;H 317X
2317SK;H2317X
90
91
91
94
106
104
110
110
6
12
6
6
140
140
166
166
2
2
2.5
2.5
1.02
1.18
1.18
1.45
80
52
65
65
86
120
120
120
120
18
18
18
18
1218SK;H 218X
2218SK;H 318X
1318SK;H 318X
2318SK;H2318X
95
96
96
99
111
112
116
117
6
10
6
6
150
150
176
176
2
2
2.5
2.5
1.19
1.37
1.37
1.69
85
55
68
125
125
19
19
1219SK;H 219X
2219SK;H 319X
101
102
118
117
7
9
158
158
2
2
1.37
1.56
1）Refers to adapter mass.
Note: 1. For bearing dimensions, basic rated loads, and mass, refer to pages B-82 to B-84.
2. Adapters for series 12 bearings can also be used with H2 and H3 series bearings.
Caution: the B1 dimension of H3 series bearings is longer than that of H2 series bearings.
3. Adapter numbers which are appended with the code "X" indicate narrow slit type adapters which use washer with straight inner tabs.
4. For adapter locknut and washer dimensions, please refer to pages C-2 to C-7, and C-12 to C-14.
B-87
(approx.)
● Adapters
(for self-aligning ball bearings)
B2
ra
S1
B1
φd1 φd2
φdb φda
φDa
d 85 ∼ 100mm
Boundary dimensions
mm
Bearing numbers
da
d1
B1
d2
B2
85
68
90
125
125
19
19
90
58
71
71
97
130
130
130
130
100
63
77
77
105
145
145
145
145
Abutment and fillet dimensions
mm
db
S1
Da
min
max
min
1319SK;H 319X
2319SK;H2319X
102
105
123
123
20
20
20
20
1220SK;H 220X
2220SK;H 320X
1320SK;H 320X
2320SK;H2320X
106
107
107
110
21
21
21
21
1222SK;H 222X
2222SK;H 322X
1322SK;H 322X
2322SK;H2322X
116
117
117
121
Mass1）
kg
ras
max
max
(approx.)
7
7
186
186
2.5
2.5
1.56
1.92
125
123
130
129
7
8
7
7
168
168
201
201
2
2
2.5
2.5
1.49
1.69
1.69
2.15
138
137
150
142
7
6
9
7
188
188
226
226
2
2
2.5
2.5
1.93
2.18
2.18
2.74
1）Refers to adapter mass.
Note: 1. For bearing dimensions, basic rated loads, and mass, refer to pages B-82 to B-84.
2. Adapters for series 12 bearings can also be used with H2 and H3 series bearings.
Caution: the B1 dimension of H3 series bearings is longer than that of H2 series bearings.
3. Adapter numbers which are appended with the code "X" indicate narrow slit type adapters which use washer with straight inner tabs.
4. For adapter locknut and washer dimensions, please refer to pages C-2 to C-7, and C-12 to C-14.
B-88
● Adapters
B-89
●Cylindrical Roller Bearings
Cylindrical roller bearing
E Type cylindrical roller bearing
Double row cylindrical roller bearing
Four row cylindrical roller bearing
1. Types, design features, and
characteristics
dimensions are identical to standard type. HT type has a
large axial load capacity, and HL type provides extended
wear life in conditions where the development of a lubricating
film inside the bearing is difficult.
Double and multiple row bearing arrangements are also
available.
For extremely heavy load applications, the non-separable
full complement SL type bearing offers special advantages.
Table 1 shows the various types and characteristics of
single row cylindrical roller bearings. Table 2 shows the
characteristics of non-standard type cylindrical roller
bearings.
Since the rolling elements in cylindrical roller bearings
make line contact with raceways, these bearings can
accommodate heavy radial loads. The rollers are guided by
ribs on either the inner or outer ring, therefore these bearings
are also suitable for high speed applications. Furthermore,
cylindrical roller bearings are separable, and relatively easy
to install and disassemble even when interference fits are
required.
Among the various types of cylindrical roller bearings,
Type E has a high load capacity and its boundary
Table 1 Cylindrical roller bearing types and characteristics
Type code
NU type
Design
Characteristics
NU type
¡NU type outer rings have double ribs; outer ring and roller as well as cage can be separated
from inner ring. N type inner ring have double ribs; inner ring and roller as well as cage can
be separated from outer ring.
¡Unable to accommodate even the lightest axial loads.
¡This type is extremely suitable for, and widely used as, the floating side bearing.
N type
N type
NJ type
NJ type
NF type
¡NJ type has double ribs on outer ring, single rib on inner ring; NF type has single rib on outer
ring, and double rib on inner ring.
¡Can receive single direction axial loads.
¡When there is no distinction between the fixed side and floating side bearing, can be used as
a pair in close proximity.
NF type
NUP type
NUP type
NH type
(NJ + HJ)
¡NUP type has a collar ring attached to the ribless side of the inner ring; NH type is NJ type
with an L type collar ring attached. All of these collar rings are separable, and therefore it is
necessary to fix the inner ring axially.
¡Can accommodate axial loads in either direction.
¡Widely used as the shaft's fixed-side bearing.
NH type
B-91
●Cylindrical Roller Bearings
Table 2 Non-standard type cylindrical roller bearing characteristics
Bearing type
Characteristics
¡Boundary dimensions are the same as the standard type, but the diameter, length and number of the
rollers have been increased, as well as load capacity.
¡Identified by addition of "E" to end of basic roller number.
¡Enables compact design due to its high load rating.
¡Rollers' inscribed circle diameter differs from standard type rollers and therefore cannot be interchanged.
180mm
E Type cylindrical
roller bearing
E type Standard type
100mm
NU2220E
Cr=335kN
E type bearing
NU320
Cr=299kN
Standard type
bearing
215mm
120mm
NU224E
Cr=335kN
E type bearing
Remarks: In the dimension tables, both E type and standard type are listed, but in the future JIS will change to E type.
Large axial load use
cylindrical roller bearings
(HT type)
¡Can accommodate larger axial loads than standard type thanks to improved geometry of the rib roller end surface.
¡Please consult NTN Engineering concerning the many factors which require consideration, such as
load, lubricant, and installation conditions.
Double row cylindrical
roller bearings
¡NN type and NNU type available.
¡Widely used for applications requiring thin-walled bearings, such the main shafts of machine tools,
rolling machine rollers, and in printing equipment.
¡Internal radial clearance is adjusted for the spindle of machine tools by pressing the tapered bore of the
inner ring on a tapered shaft.
Four row cylindrical
roller bearings
¡Used mainly in the necks of rolling machine rollers; designed for maximum rated load to accommodate
the severely limited space in the roller neck section of such equipment.
¡Many varieties exist, including sealed types, which have been specially designed for high speed use, to
prevent creeping, provide dust and water proofing properties, etc. Contact NTN Engineering.
SL type cylindrical
roller bearings
¡Full complement roller bearing capable of handling heavy loads.
¡Consult NTN Engineering regarding special application designs for SL type cylindrical roller bearings.
2. Standard cage types
The basic road ratings listed in the dimension charts
correspond to values achieved with the standard cages
listed in Table 3. Furthermore, please note that even for the
identical bearing, in cases where the number of rolling
elements or the cage type differs, the basic rated load will
also differ from the values listed in the dimension charts.
Table 3 shows the standard varieties for cylindrical roller
bearings.
Table 3 Standard cage types
Bearing
series
Molded resin
cage
Pressed
cage
Machined
cage
NU10
―
―
1005∼10/500
NU 2
NU2E
―
204E∼218E
208∼230
―
232∼264
219E∼240E
NU22
NU22E
―
2204E∼2218E
2208∼2230
―
2232∼2264
2219E∼2240E
NU3
NU3E
304E∼314E
308∼324
―
326∼356
315E∼332E
NU23
NU23E
―
2304E∼2311E
2308∼2320
―
2322∼2356
2312E∼2332E
NU4
―
―
405∼416
―
Note: 1) Within the same bearing series, cage type is identical even if the type
code (NJ, NUP, N, NF) differs.
2) For high speed and other special applications, machined cages can
be manufactured when necessary.
Consult NTN Engineering.
3) Among E type bearings (those using molded resin cages), certain
varieties may also use pressed cages.
Consult NTN Engineering.
4) Although machined cages are standard for two row and four row
cylindrical roller bearings, molded resin cages may also be used in
some of these bearings for machine tool applications.
5) Due to their material properties, molded resin cages cannot be
used in applications where temperatures exceed 120˚C. #04 - #07
however use resin material with superior ability to withstand
heat and high temperatures, which are capable of withstanding
temperatures up to 150˚C.
6) Formed resin cages capable of withstanding temperatures up to
150˚C can be manufactured by request for type E (formed resin cage)
of #08 or greater. For information, please contact NTN Engineering.
B-92
●Cylindrical Roller Bearings
3. Allowable misalignment
are to support an axial load or moment load simultaneously,
please contact NTN Engineering.
Although values vary somewhat depending on bearing
type and internal specifications, under general load
conditions, to avoid the occurrence of edge loading,
allowable misalignments have been set as follows:
NTN Engineering also offers cylindrical roller bearings for
high axial loads (HT type). For details, please contact NTN
Engineering.
MPa
Bearing width series 0 or 1: ………………0.001 rad (3.5')
Bearing width series 2: ……………………0.0005 rad (1.5')
Double row cylindrical roller bearings 1 :……0.0005 rad (1.5')
100
Co
50
d
loa
Allowable surface pressure Pz
150
oad
ial
al l
ax
axi
nt
itte
erm
Int
Cylindrical roller bearings with ribs on the inner and outer
rings are capable of simultaneously bearing a radial load and
an axial load of a certain degree. Unlike basic road ratings
based on rolling fatigue, allowable axial load is determined
by heat produced on the sliding surface between the ends of
the rollers and rib, seizure and wear. Allowable axial load
when center axial load is applied is approximately
determined by formula (1), which is based upon experience
and testing.
Grease lubrication
ary
4. Allowable axial load for cylindrical roller
bearings
Primarily oil lubrication
Grease or
oil lubrication
nt
me
Mo
1 Does not include high precision bearings for machine tool
main shaft applications.
200
nst
ant
axi
al l
oad
0
0
5
10 15 20 25 30
4
×10 mm・min-1
dp・n
dp：Roller pitch diameter mm
dp≒(bearing bore + bearing outside diameter)/2 mm
n：Rotational speed min-1
Diagram 1 Allowable surface pressure of rib
Pt = k ・ d2 ・ Pz …………………(1)
Table 4 Factor k values and allowable axial load (Fa max)
Bearing series
NJ, NUP10
NJ, NUP, NF, NH2,
NJ, NUP, NH22
NJ, NUP, NF, NH3,
NJ, NUP, NH23
NJ, NUP, NH2E,
NJ, NUP, NH22E
NJ, NUP, NH3E,
NJ, NUP, NH23E
NJ, NUP, NH4,
SL01-48
SL01-49
SL04-50
Where:
Pt : Allowable axial load when rotating N {kgf}
k : Factor determined by internal design of bearing
(see Table 4)
d : Bearing bore mm
Pz : Allowable surface pressure of rib MPa {kgf/mm2}
(see Diagram 1)
If axial load is greater than radial load, the rollers will not
rotate properly. The allowable axial load therefore must not
exceed the value for Fa max given in Table 4.
The following are also important to operate the bearing
smoothly under axial load:
(1) Do not make the internal radial clearance any larger
than necessary.
(2) Use lubricant with extreme pressure additive.
(3) Make the shoulder of the housing and shaft high
enough for the rib of the bearing.
(4) If the bearing is to support an extreme axial load,
mounting precision should be improved and the
bearing should rotate slowly before actual use.
If large cylindrical roller bearings (bore of 300 mm or more)
B-93
k
Fa
0.040
0.4Fr
0.065
0.4Fr
0.050
0.4Fr
0.080
0.4Fr
0.100
0.022
0.034
0.044
0.4Fr
0.2Fr
0.2Fr
0.2Fr
max
● Cylindrical Roller Bearings
B
B
r
r1
r
r1
φD
φd φFW
Type NU
r1
φJ
r1
r
φJ
Type NJ
r
r1
r
φD φEW
Type NUP
φd φJ
Type N
Type NF
d 20 ∼ 40mm
Boundary dimensions
mm
B
rs min3）
Basic load ratings
dynamic static
dynamic static
kN
kgf
r1s min3） Cr
Cor
Cr
Cor
Limiting speeds1）
min-1
type
NJ
type
NUP
type
N
NU204E
NU2204E
NU304E
NU2304E
NJ
NJ
NJ
NJ
NUP
NUP
NUP
NUP
―
―
―
―
19 000
15 000
13 000
13 000
11 000
10 000
NU1005
NU205E
NU2205E
NU305E
NU2305E
NU405
NJ
NJ
NJ
NJ
NJ
NJ
NUP
NUP
NUP
NUP
NUP
NUP
N
―
―
―
―
N
14 000
11 000
9 700
9 300
8 300
7 300
16 000
13 000
11 000
11 000
9 700
8 500
NU1006
NU206E
NU2206E
NU306E
NU2306E
NU406
NJ
NJ
NJ
NJ
NJ
NJ
NUP
NUP
NUP
NUP
NUP
NUP
N
―
―
―
―
N
2 360
5 100
6 650
7 200
11 100
7 050
12 000
9 500
8 500
8 100
7 200
6 400
15 000
11 000
10 000
9 600
8 500
7 500
NU1007
NU207E
NU2207E
NU307E
NU2307E
NU407
NJ
NJ
NJ
NJ
NJ
NJ
NUP
NUP
NUP
NUP
NUP
NUP
N
―
―
―
―
N
2 950
4 350
5 650
6 300
7 900
5 800
8 300
8 950
12 500
9 100
11 000
9 400
8 500
8 500
7 600
8 000
7 200
7 000
6 400
5 700
13 000
11 000
10 000
10 000
8 900
9 400
8 500
8 200
7 500
6 700
NU1008
NU208
NU208E
NU2208
NU2208E
NU308
NU308E
NU2308
NU2308E
NU408
NJ
NJ
NJ
NJ
NJ
NJ
NJ
NJ
NJ
NJ
NUP
NUP
NUP
NUP
NUP
NUP
NUP
NUP
NUP
NUP
N
N
―
N
―
N
―
N
―
N
grease
oil
2 310
2 890
2 740
3 950
15 000
14 000
13 000
12 000
18 000
16 000
15 000
14 000
1 540
2 990
3 550
4 250
5 800
4 750
1 430
2 830
3 550
3 800
5 700
4 050
16 000
13 000
11 000
11 000
9 700
8 500
19.6
37.5
50.0
50.0
77.5
55.0
2 000
4 000
5 000
5 400
7 600
6 400
2 000
3 800
5 100
5 100
7 900
5 600
22.6
50.5
61.5
71.0
99.0
75.5
23.2
50.0
65.5
71.0
109
69.0
2 310
5 150
6 300
7 200
10 100
7 700
27.3
43.5
55.5
58.0
72.5
58.5
83.0
82.5
114
95.5
29.0
43.0
55.5
62.0
77.5
57.0
81.5
88.0
122
89.0
2 780
4 450
5 700
5 950
7 400
6 000
8 500
8 400
11 600
9 750
d
D
20
47
47
52
52
14
18
15
21
1
1
1.1
1.1
0.6
0.6
0.6
0.6
25.7
30.5
31.5
42.0
22.6
28.3
26.9
39.0
2 620
3 100
3 200
4 300
25
47
52
52
62
62
80
12
15
18
17
24
21
0.6
1
1
1.1
1.1
1.5
0.3
0.6
0.6
1.1
1.1
1.5
15.1
29.3
35.0
41.5
57.0
46.5
14.1
27.7
34.5
37.5
56.0
40.0
30
55
62
62
72
72
90
13
16
20
19
27
23
1
1
1
1.1
1.1
1.5
0.6
0.6
0.6
1.1
1.1
1.5
19.7
39.0
49.0
53.0
74.5
62.5
35
62
72
72
80
80
100
14
17
23
21
31
25
1
1.1
1.1
1.5
1.5
1.5
0.6
0.6
0.6
1.1
1.1
1.5
40
68
80
80
80
80
90
90
90
90
110
15
18
18
23
23
23
23
33
33
27
1
1.1
1.1
1.1
1.1
1.5
1.5
1.5
1.5
2
0.6
1.1
1.1
1.1
1.1
1.5
1.5
1.5
1.5
2
Bearing numbers2）
1）This value achieved with machined cages; when pressed cages are used, 80% of this value is acceptable.
2）Production switched to E type only for bearing number for which there is no standard form.
3）Minimal allowable dimension for chamfer dimension r or r1.
B-94
type
NU
● Cylindrical Roller Bearings
ra
r1a
r1a
ra
φda
φDa φdc
φdd
φde
φdc
φdb φDb
φDb
Dynamic equivalent
radial load
Pr＝Fr
Static equivalent
radial load
Por＝Fr
Dimensions
Abutment and fillet dimensions
mm
type
NF
Fw
Ew
Mass
mm
J
kg
da
db
dc
dd
de
Da
min
min
max
min
min
max
Db
max
min4）
ras
r1as
max
max
type NU
type N
(approx.)
―
―
―
―
26.5
26.5
27.5
27.5
―
―
―
―
29.5
29.5
31.1
31.1
24
24
24
24
―
―
―
―
26
26
27
27
29
29
30
30
32
32
33
33
42
42
45.5
45.5
―
―
―
―
―
―
―
―
1
1
1
1
0.6
0.6
0.6
0.6
0.122
0.158
0.176
0.242
―
―
―
―
―
―
―
―
―
NF
30.5
31.5
31.5
34
34
38.8
41.5
―
―
―
―
62.8
32.7
34.5
34.5
38
38
43.6
27
29
29
31.5
31.5
33
29
―
―
―
―
33
30
31
31
33
33
38
32
34
34
37
37
41
33
37
37
40
40
46
43
47
47
55.5
55.5
72
45
―
―
―
―
72
42.5
―
―
―
―
64
0.6
1
1
1
1
1.5
0.3
0.6
0.6
1
1
1.5
0.092
0.151
0.186
0.275
0.386
0.55
0.091
―
―
―
―
0.536
―
―
―
―
―
NF
36.5
37.5
37.5
40.5
40.5
45
48.5
―
―
―
―
73
38.9
41.1
41.1
44.9
44.9
50.5
34
34
34
36.5
36.5
38
35
―
―
―
―
38
35
37
37
40
40
44
38
40
40
44
44
47
39.5
44
44
48
48
52
50
57
57
65.5
65.5
82
51
―
―
―
―
82
49.5
―
―
―
―
74
1
1
1
1
1
1.5
0.6
0.6
0.6
1
1
1.5
0.13
0.226
0.297
0.398
0.58
0.751
0.128
―
―
―
―
0.732
―
―
―
―
―
NF
42
44
44
46.2
46.2
53
55
―
―
―
―
83
44.6
48
48
51
51
59
39
39
39
41.5
41.5
43
40
―
―
―
―
43
41
43
43
45
45
52
44
46
46
48
48
55
45
50
50
53
53
61
57
65.5
65.5
72
72
92
58
―
―
―
―
92
56
―
―
―
―
84
1
1
1
1.5
1.5
1.5
0.6
0.6
0.6
1
1
1.5
0.179
0.327
0.455
0.545
0.78
0.99
0.176
―
―
―
―
0.965
―
NF
―
―
―
NF
―
―
―
NF
47
50
49.5
50
49.5
53.5
52
53.5
52
58
61
70
―
70
―
77.5
―
77.5
―
92
49.8
54.2
53.9
54.2
53.9
58.4
57.6
58.4
57.6
64.8
44
46.5
46.5
46.5
46.5
48
48
48
48
49
45
46.5
―
46.5
―
48
―
48
―
49
46
49
49
49
49
51
51
51
51
57
49
52
52
52
52
55
55
55
55
60
50.5
56
56
56
56
60
60
60
60
67
63
73.5
73.5
73.5
73.5
82
82
82
82
101
64
73.5
―
73.5
―
82
―
82
―
101
62
72
―
72
―
80
―
80
―
93
1
1
1
1
1
1.5
1.5
1.5
1.5
2
0.6
1
1
1
1
1.5
1.5
1.5
1.5
2
0.22
0.378
0.426
0.49
0.552
0.658
0.754
0.951
1.06
1.3
0.217
0.37
―
0.48
―
0.643
―
0.932
―
1.27
4）Does not apply to side of the outer ring rib of type NF bearings.
B-95
● Cylindrical Roller Bearings
B
B
r
r1
r
r1
φD
φd φFW
Type NU
r1
φJ
r1
r
φJ
Type NJ
r
r1
r
φD φEW
Type NUP
φd φJ
Type N
Type NF
d 45 ∼ 60mm
Boundary dimensions
mm
B
rs min3）
Limiting speeds1）
Basic load ratings
dynamic static
dynamic static
kN
kgf
r1s min3） Cr
Cor
Cr
Cor
grease
oil
min-1
type
NJ
type
NUP
type
N
NU1009
NU209
NU209E
NU2209
NU2209E
NU309
NU309E
NU2309
NU2309E
NU409
NJ
NJ
NJ
NJ
NJ
NJ
NJ
NJ
NJ
NJ
NUP
NUP
NUP
NUP
NUP
NUP
NUP
NUP
NUP
NUP
N
N
―
N
―
N
―
N
―
N
11 000
9 000
8 100
8 100
7 300
7 700
6 900
6 700
6 100
5 500
NU1010
NU210
NU210E
NU2210
NU2210E
NU310
NU310E
NU2310
NU2310E
NU410
NJ
NJ
NJ
NJ
NJ
NJ
NJ
NJ
NJ
NJ
NUP
NUP
NUP
NUP
NUP
NUP
NUP
NUP
NUP
NUP
N
N
―
N
―
N
―
N
―
N
8 200
6 900
6 300
6 300
5 600
5 900
5 300
5 200
4 700
4 300
9 700
8 200
7 400
7 400
6 600
7 000
6 300
6 100
5 600
5 000
NU1011
NU211
NU211E
NU2211
NU2211E
NU311
NU311E
NU2311
NU2311E
NU411
NJ
NJ
NJ
NJ
NJ
NJ
NJ
NJ
NJ
NJ
NUP
NUP
NUP
NUP
NUP
NUP
NUP
NUP
NUP
NUP
N
N
―
N
―
N
―
N
―
N
7 500
6 400
5 800
5 800
8 800
7 600
6 800
6 800
NU1012
NU212
NU212E
NU2212
NJ
NJ
NJ
NJ
NUP
NUP
NUP
NUP
N
N
―
N
d
D
45
75
85
85
85
85
100
100
100
100
120
16
19
19
23
23
25
25
36
36
29
1
1.1
1.1
1.1
1.1
1.5
1.5
1.5
1.5
2
0.6
1.1
1.1
1.1
1.1
1.5
1.5
1.5
1.5
2
31.0
46.0
63.0
61.5
76.0
74.0
97.5
99.0
137
107
34.0
47.0
66.5
68.0
84.5
71.0
98.5
104
153
102
3 200
4 700
6 450
6 250
7 750
7 550
9 950
10 100
14 000
10 900
3 450
4 800
6 800
6 900
8 600
7 250
10 000
10 600
15 600
10 400
9 900
8 400
7 600
7 600
6 800
7 200
6 500
6 300
5 700
5 100
12 000
9 900
9 000
9 000
8 000
8 400
7 600
7 400
6 800
6 000
50
80
90
90
90
90
110
110
110
110
130
16
20
20
23
23
27
27
40
40
31
1
1.1
1.1
1.1
1.1
2
2
2
2
2.1
0.6
1.1
1.1
1.1
1.1
2
2
2
2
2.1
32.0
48.0
66.0
64.0
79.5
87.0
110
121
163
129
36.0
51.0
72.0
73.5
91.5
86.0
113
131
187
124
3 300
4 900
6 750
6 550
8 100
8 850
11 200
12 300
16 600
13 200
3 700
5 200
7 350
7 500
9 350
8 800
11 500
13 400
19 000
12 600
8 900
7 600
6 900
6 900
6 200
6 500
5 900
5 700
5 200
4 700
55
90
100
100
100
100
120
120
120
120
140
18
21
21
25
25
29
29
43
43
33
1.1
1.5
1.5
1.5
1.5
2
2
2
2
2.1
1
1.1
1.1
1.1
1.1
2
2
2
2
2.1
37.5
58.0
82.5
75.5
97.0
111
137
148
201
139
44.0
62.5
93.0
87.0
114
111
143
162
233
138
3 850
5 900
8 400
7 700
9 900
11 300
14 000
15 100
20 500
14 200
4 450
6 350
9 500
8 900
11 700
11 400
14 600
16 500
23 800
14 100
60
95
110
110
110
18
22
22
28
1.1
1.5
1.5
1.5
1
1.5
1.5
1.5
40.0
68.5
97.5
96.0
48.5
75.0
107
116
4 100
7 000
9 950
9 800
4 950
7 650
10 900
11 800
1）This value achieved with machined cages; when pressed cages are used, 80% of this value is acceptable.
2）Production switched to E type only for bearing number for which there is no standard form.
3）Minimal allowable dimension for chamfer dimension r or r1.
B-96
Bearing numbers2）
type
NU
● Cylindrical Roller Bearings
ra
r1a
r1a
ra
φda
φDa φdc
φdd
φde
φdc
φdb φDb
φDb
Dynamic equivalent
radial load
Pr＝Fr
Static equivalent
radial load
Por＝Fr
Dimensions
Abutment and fillet dimensions
mm
type
NF
Fw
Ew
Mass
mm
J
kg
da
db
dc
dd
de
Da
min
min
max
min
min
max
Db
max
min4）
ras
r1as
max
max
type NU
type N
(approx.)
―
NF
―
―
―
NF
―
―
―
NF
52.5
55
54.5
55
54.5
58.5
58.5
58.5
58.5
64.5
67.5
75
―
75
―
86.5
―
86.5
―
100.5
55.5
59
58.9
59
58.9
64
64.5
64
64.5
71.8
49
51.5
51.5
51.5
51.5
53
53
53
53
54
50
51.5
―
51.5
―
53
―
53
―
54
52
54
54
54
54
57
57
57
57
63
54
57
57
57
57
60
60
60
60
66
56
61
61
61
61
66
66
66
66
74
70
78.5
78.5
78.5
78.5
92
92
92
92
111
71
68.5
78.5 77
―
―
78.5 77
―
―
92
89
―
―
92
89
―
―
111
102
1
1
1
1
1
1.5
1.5
1.5
1.5
2
0.6
1
1
1
1
1.5
1.5
1.5
1.5
2
0.28
0.432
0.495
0.53
0.6
0.877
0.996
1.27
1.41
1.62
0.276
0.423
―
0.52
―
0.857
―
1.24
―
1.58
―
NF
―
―
―
NF
―
―
―
NF
57.5
60.4
59.5
60.4
59.5
65
65
65
65
70.8
72.5
80.4
―
80.4
―
95
―
95
―
110.8
60.5
64.6
63.9
64.6
63.9
71
71.4
71
71.4
78.8
54
56.5
56.5
56.5
56.5
59
59
59
59
61
55
56.5
―
56.5
―
59
―
59
―
61
57
58
58
58
58
63
63
63
63
69
59
62
62
62
62
67
67
67
67
73
61
67
67
67
67
73
73
73
73
81
75
83.5
83.5
83.5
83.5
101
101
101
101
119
76
73.5
83.5 83
―
―
83.5 83
―
―
101
98
―
―
101
98
―
―
119
112
1
1
1
1
1
2
2
2
2
2
0.6
1
1
1
1
2
2
2
2
2
0.295
0.47
0.54
0.571
0.652
1.14
1.3
1.7
1.9
2.02
0.291
0.46
―
0.56
―
1.11
―
1.67
―
1.97
―
NF
―
―
―
NF
―
―
―
NF
64.5
66.5
66
66.5
66
70.5
70.5
70.5
70.5
77.2
80.5
88.5
―
88.5
―
104.5
―
104.5
―
117.2
67.7
70.8
70.8
70.8
70.8
77.2
77.7
77.2
77.7
85.2
60
61.5
61.5
61.5
61.5
64
64
64
64
66
61.5
63
―
63
―
64
―
64
―
66
63
65
65
65
65
69
69
69
69
76
66
68
68
68
68
72
72
72
72
79
68.5
73
73
73
73
80
80
80
80
87
83.5
92
92
92
92
111
111
111
111
129
85
81.5
93.5 91
―
―
93.5 91
―
―
111
107
―
―
111
107
―
―
129
119
1
1.5
1.5
1.5
1.5
2
2
2
2
2
1
1
1
1
1
2
2
2
2
2
0.442
0.638
0.718
0.773
0.968
1.45
1.65
2.17
2.37
2.48
0.435
0.626
―
0.758
―
1.42
―
2.13
―
2.42
―
NF
―
―
69.5
73.5
72
73.5
85.5
97.5
―
97.5
72.7
78.4
77.6
78.4
65
68
68
68
66.5
68
―
68
68
71
71
71
71
75
75
75
73.5
80
80
80
88.5
102
102
102
90
102
―
102
1
1.5
1.5
1.5
1
1.5
1.5
1.5
0.474
0.818
0.923
1.06
0.467
0.802
―
1.04
4）Does not apply to side of the outer ring rib of type NF bearings.
B-97
86.5
100
―
100
● Cylindrical Roller Bearings
B
B
r
r1
r
r1
φD
φd φFW
r1
φJ
Type NU
r1
r
φJ
Type NJ
r
r1
r
φD φEW
Type NUP
φd φJ
Type N
Type NF
d 60 ∼ 75mm
Boundary dimensions
mm
B
rs min3）
Limiting speeds1）
Basic load ratings
dynamic static
dynamic static
kN
kgf
r1s min3） Cr
Cor
Cr
Cor
grease
oil
min-1
type
NJ
type
NUP
type
N
NU2212E
NU312
NU312E
NU2312
NU2312E
NU412
NJ
NJ
NJ
NJ
NJ
NJ
NUP
NUP
NUP
NUP
NUP
NUP
―
N
―
N
―
N
8 200
7 000
6 300
6 300
5 600
6 000
5 400
5 200
4 800
4 300
NU1013
NU213
NU213E
NU2213
NU2213E
NU313
NU313E
NU2313
NU2313E
NU413
NJ
NJ
NJ
NJ
NJ
NJ
NJ
NJ
NJ
NJ
NUP
NUP
NUP
NUP
NUP
NUP
NUP
NUP
NUP
NUP
N
N
―
N
―
N
―
N
―
N
6 500
5 500
5 000
5 000
4 500
4 700
4 200
4 100
3 800
3 400
7 600
6 500
5 900
5 900
5 200
5 500
5 000
4 800
4 400
4 000
NU1014
NU214
NU214E
NU2214
NU2214E
NU314
NU314E
NU2314
NU2314E
NU414
NJ
NJ
NJ
NJ
NJ
NJ
NJ
NJ
NJ
NJ
NUP
NUP
NUP
NUP
NUP
NUP
NUP
NUP
NUP
NUP
N
N
―
N
―
N
―
N
―
N
6 100
5 100
4 700
4 700
4 200
4 400
4 000
3 800
7 100
6 000
5 500
5 500
4 900
5 200
4 700
4 500
NU1015
NU215
NU215E
NU2215
NU2215E
NU315
NU315E
NU2315
NJ
NJ
NJ
NJ
NJ
NJ
NJ
NJ
NUP
NUP
NUP
NUP
NUP
NUP
NUP
NUP
N
N
―
N
―
N
―
N
d
D
60
110
130
130
130
130
150
28
31
31
46
46
35
1.5
2.1
2.1
2.1
2.1
2.1
1.5
2.1
2.1
2.1
2.1
2.1
131
124
150
169
222
167
157
126
157
188
262
168
13 400
12 600
15 200
17 200
22 700
17 100
16 000
12 900
16 000
19 200
26 700
17 200
5 200
5 500
4 900
4 800
4 400
3 900
6 100
6 500
5 800
5 700
5 200
4 600
65
100
120
120
120
120
140
140
140
140
160
18
23
23
31
31
33
33
48
48
37
1.1
1.5
1.5
1.5
1.5
2.1
2.1
2.1
2.1
2.1
1
1.5
1.5
1.5
1.5
2.1
2.1
2.1
2.1
2.1
41.0
84.0
108
120
149
135
181
188
248
182
51.0
94.5
119
149
181
139
191
212
287
186
4 200
8 550
11 000
12 200
15 200
13 800
18 400
19 100
25 200
18 600
5 200
9 650
12 100
15 200
18 400
14 200
19 500
21 700
29 300
19 000
7 000
5 900
5 400
5 400
4 800
5 100
4 600
4 400
4 100
3 600
70
110
125
125
125
125
150
150
150
150
180
20
24
24
31
31
35
35
51
51
42
1.1
1.5
1.5
1.5
1.5
2.1
2.1
2.1
2.1
3
1
1.5
1.5
1.5
1.5
2.1
2.1
2.1
2.1
3
58.5
83.5
119
119
156
158
205
223
274
228
70.5
95.0
137
151
194
168
222
262
325
236
5 950
8 500
12 100
12 200
15 900
16 100
20 900
22 700
27 900
23 200
7 200
9 700
14 000
15 400
19 800
17 200
22 600
26 700
33 000
24 000
75
115
130
130
130
130
160
160
160
20
25
25
31
31
37
37
55
1.1
1.5
1.5
1.5
1.5
2.1
2.1
2.1
1
1.5
1.5
1.5
1.5
2.1
2.1
2.1
60.0
96.5
130
130
162
190
240
258
74.5
111
156
162
207
205
263
300
6 100
9 850
13 300
13 200
16 500
19 400
24 500
26 300
7 600
11 300
16 000
16 500
21 100
20 900
26 800
31 000
1）This value achieved with machined cages; when pressed cages are used, 80% of this value is acceptable.
2）Production switched to E type only for bearing number for which there is no standard form.
3）Minimal allowable dimension for chamfer dimension r or r1.
B-98
Bearing numbers2）
type
NU
● Cylindrical Roller Bearings
ra
r1a
r1a
ra
φda
φDa φdc
φdd
φde
φdc
φdb φDb
φDb
Dynamic equivalent
radial load
Pr＝Fr
Static equivalent
radial load
Por＝Fr
Dimensions
Abutment and fillet dimensions
mm
type
NF
Fw
Ew
Mass
mm
J
kg
Db
dc
dd
de
Da
min
min
max
min
min
max
102
119
119
119
119
139
―
119
―
119
―
139
―
116
―
116
―
128
1.5
2
2
2
2
2
1.5
2
2
2
2
2
1.21
1.8
2.05
2.71
2.96
3
―
1.76
―
2.66
―
2.93
min4）
r1as
max
max
type N
db
max
ras
type NU
da
(approx.)
―
NF
―
―
―
NF
72
77
77
77
77
83
―
113
―
113
―
127
77.6
84.2
84.6
84.2
84.6
91.8
68
71
71
71
71
71
―
71
―
71
―
71
71
75
75
75
75
82
75
79
79
79
79
85
80
86
86
86
86
94
―
NF
―
―
―
NF
―
―
―
NF
74.5
79.6
78.5
79.6
78.5
83.5
82.5
83.5
82.5
89.3
90.5
105.6
―
105.6
―
121.5
―
121.5
―
135.3
77.7
84.8
84.5
84.8
84.5
91
91
91
91
98.5
70
73
73
73
73
76
76
76
76
76
71.5
73
―
73
―
76
―
76
―
76
73
77
77
77
77
81
81
81
81
88
76
81
81
81
81
85
85
85
85
91
78.5
87
87
87
87
93
93
93
93
100
93.5
112
112
112
112
129
129
129
129
149
95
112
―
112
―
129
―
129
―
149
91.5
108
―
108
―
125
―
125
―
137
1
1.5
1.5
1.5
1.5
2
2
2
2
2
1
1.5
1.5
1.5
1.5
2
2
2
2
2
0.485
1.02
1.21
1.4
1.6
2.23
2.54
3.27
3.48
3.6
0.477
1
―
1.37
―
2.18
―
3.2
―
3.5
―
NF
―
―
―
NF
―
―
―
NF
80
84.5
83.5
84.5
83.5
90
89
90
89
100
100
110.5
―
110.5
―
130
―
130
―
152
84
89.6
89.5
89.6
89.5
98
98
98
98
110.5
75
78
78
78
78
81
81
81
81
83
76.5
78
―
78
―
81
―
81
―
83
78
82
82
82
82
87
87
87
87
99
82
86
86
86
86
92
92
92
92
102
85
92
92
92
92
100
100
100
100
112
103.5
117
117
117
117
139
139
139
139
167
105
117
―
117
―
139
―
139
―
167
101
114
―
114
―
134
―
134
―
153
1
1.5
1.5
1.5
1.5
2
2
2
2
2.5
1
1.5
1.5
1.5
1.5
2
2
2
2
2.5
0.699
1.12
1.3
1.47
1.7
2.71
3.1
3.98
4.25
5.24
0.689
1.1
―
1.44
―
2.65
―
3.9
―
5.1
―
NF
―
―
―
NF
―
―
85
88.5
88.5
88.5
88.5
95.5
95
95.5
105
116.5
―
116.5
―
139.5
―
139.5
89
94
94.5
94
94.5
104.2
104.6
104.2
80
83
83
83
83
86
86
86
81.5
83
―
83
―
86
―
86
83
87
87
87
87
93
93
93
87
90
90
90
90
97
97
97
90
96
96
96
96
106
106
106
108.5
122
122
122
122
149
149
149
110
122
―
122
―
149
―
149
106
120
―
120
―
143
―
143
1
1.5
1.5
1.5
1.5
2
2
2
1
1.5
1.5
1.5
1.5
2
2
2
0.738
1.23
1.41
1.55
1.79
3.28
3.74
4.87
0.727
1.21
―
1.52
―
3.21
―
4.77
4）Does not apply to side of the outer ring rib of type NF bearings.
B-99
● Cylindrical Roller Bearings
B
B
r
r1
r
r1
φD
φd φFW
r1
r1
φJ
Type NU
r
φJ
Type NJ
r
r1
r
φD φEW
Type NUP
φd φJ
Type N
Type NF
d 75 ∼ 95mm
Boundary dimensions
mm
B
rs min3）
Limiting speeds1）
Basic load ratings
dynamic static
dynamic static
kN
kgf
r1s min3） Cr
Cor
Cr
Cor
grease
oil
min-1
Bearing numbers2）
type
NJ
type
NUP
type
N
NU2315E
NU415
NJ
NJ
NUP
NUP
―
N
6 700
5 700
5 100
5 100
4 600
4 800
4 400
4 200
3 900
3 500
NU1016
NU216
NU216E
NU2216
NU2216E
NU316
NU316E
NU2316
NU2316E
NU416
NJ
NJ
NJ
NJ
NJ
NJ
NJ
NJ
NJ
NJ
NUP
NUP
NUP
NUP
NUP
NUP
NUP
NUP
NUP
NUP
N
N
―
N
―
N
―
N
―
N
5 400
4 500
4 100
4 100
3 700
3 900
3 500
3 400
3 100
6 300
5 300
4 800
4 800
4 300
4 600
4 100
4 000
3 700
NU1017
NU217
NU217E
NU2217
NU2217E
NU317
NU317E
NU2317
NU2317E
NJ
NJ
NJ
NJ
NJ
NJ
NJ
NJ
NJ
NUP
NUP
NUP
NUP
NUP
NUP
NUP
NUP
NUP
N
N
―
N
―
N
―
N
―
11 700
18 100
22 200
25 300
32 000
27 100
36 000
40 000
54 500
5 100
4 300
3 900
3 900
3 500
3 700
3 300
3 200
2 900
5 900
5 000
4 600
4 600
4 100
4 300
3 900
3 800
3 400
NU1018
NU218
NU218E
NU2218
NU2218E
NU318
NU318E
NU2318
NU2318E
NJ
NJ
NJ
NJ
NJ
NJ
NJ
NJ
NJ
NUP
NUP
NUP
NUP
NUP
NUP
NUP
NUP
NUP
N
N
―
N
―
N
―
N
―
12 300
19 900
27 000
4 800
4 000
3 600
5 600
4 700
4 300
NU1019
NU219
NU219E
NJ
NJ
NJ
NUP
NUP
NUP
N
N
―
d
D
75
160
190
55
45
2.1
3
2.1
3
330
262
395
274
33 500
26 800
40 000
27 900
3 500
3 200
4 100
3 700
80
125
140
140
140
140
170
170
170
170
200
22
26
26
33
33
39
39
58
58
48
1.1
2
2
2
2
2.1
2.1
2.1
2.1
3
1
2
2
2
2
2.1
2.1
2.1
2.1
3
72.5
106
139
147
186
190
256
274
355
299
90.5
122
167
186
243
207
282
330
430
315
7 400
10 800
14 200
15 000
19 000
19 400
26 100
27 900
36 500
30 500
9 250
12 500
17 000
19 000
24 800
21 100
28 800
34 000
44 000
32 000
5 700
4 800
4 400
4 400
3 900
4 100
3 700
3 600
3 300
3 000
85
130
150
150
150
150
180
180
180
180
22
28
28
36
36
41
41
60
60
1.1
2
2
2
2
3
3
3
3
1
2
2
2
2
3
3
3
3
74.5
120
167
170
217
212
291
315
395
95.5
140
199
218
279
228
330
380
485
7 600
12 300
17 000
17 300
22 200
21 600
29 700
32 000
40 000
9 750
14 300
20 300
22 200
28 400
23 300
33 500
39 000
49 500
90
140
160
160
160
160
190
190
190
190
24
30
30
40
40
43
43
64
64
1.5
2
2
2
2
3
3
3
3
1.1
2
2
2
2
3
3
3
3
88.0
152
182
197
242
240
315
325
435
114
178
217
248
315
265
355
395
535
9 000
15 500
18 500
20 100
24 700
24 500
32 000
33 500
44 500
95
145
170
170
24
32
32
1.5
2.1
2.1
1.1
2.1
2.1
90.5
166
220
120
195
265
9 250
16 900
22 500
1）This value achieved with machined cages; when pressed cages are used, 80% of this value is acceptable.
2）Production switched to E type only for bearing number for which there is no standard form.
3）Minimal allowable dimension for chamfer dimension r or r1.
B-100
type
NU
● Cylindrical Roller Bearings
ra
r1a
r1a
ra
φda
φDa φdc
φdd
φde
φdc
φdb φDb
φDb
Dynamic equivalent
radial load
Pr＝Fr
Static equivalent
radial load
Por＝Fr
Dimensions
Abutment and fillet dimensions
mm
type
NF
Fw
Ew
Mass
mm
J
kg
da
db
dc
dd
de
Da
min
min
max
min
min
max
Db
max
min4）
ras
r1as
max
max
type NU
type N
(approx.)
―
NF
95
104.5
―
160.5
104.6
116
86
88
―
88
93
103
97
107
106
118
149
177
―
177
―
162
2
2.5
2
2.5
5.25
6.22
―
6.06
―
NF
―
―
―
NF
―
―
―
NF
91.5
95.3
95.3
95.3
95.3
103
101
103
101
110
113.5
125.3
―
125.3
―
147
―
147
―
170
95.9
101.2
101.7
101.2
101.7
111.8
111
111.8
111
122
85
89
89
89
89
91
91
91
91
93
86.5
89
―
89
―
91
―
91
―
93
90
94
94
94
94
99
99
99
99
109
94
97
97
97
97
105
105
105
105
112
97
104
104
104
104
114
114
114
114
124
118.5
131
131
131
131
159
159
159
159
187
120
131
―
131
―
159
―
159
―
187
114.5
128
―
128
―
151
―
151
―
172
1
2
2
2
2
2
2
2
2
2.5
1
2
2
2
2
2
2
2
2
2.5
0.98
1.5
1.67
1.93
2.12
3.86
4.22
5.79
6.25
7.32
0.965
1.47
―
1.89
―
3.77
―
5.67
―
7.14
―
NF
―
―
―
NF
―
―
―
96.5
101.8
100.5
101.8
100.5
108
108
108
108
118.5
133.8
―
133.8
―
156
―
156
―
100.9
108.2
107.7
108.2
107.7
117.5
118.4
117.5
118.4
90
94
94
94
94
98
98
98
98
91.5
94
―
94
―
98
―
98
―
95
99
99
99
99
106
106
106
106
99
104
104
104
104
110
110
110
110
102
110
110
110
110
119
119
119
119
123.5
141
141
141
141
167
167
167
167
125
141
―
141
―
167
―
167
―
119.5
137
―
137
―
160
―
160
―
1
2
2
2
2
2.5
2.5
2.5
2.5
1
2
2
2
2
2.5
2.5
2.5
2.5
1.03
1.87
2.11
2.44
2.68
4.54
4.81
6.7
7.16
1.01
1.83
―
2.39
―
4.44
―
6.57
―
―
NF
―
―
―
NF
―
―
―
103
107
107
107
107
115
113.5
115
113.5
127
143
―
143
―
165
―
165
―
107.8
114.2
114.6
114.2
114.6
125
124.7
125
124.7
96.5
99
99
99
99
103
103
103
103
98
99
―
99
―
103
―
103
―
101
105
105
105
105
111
111
111
111
106
109
109
109
109
117
117
117
117
109
116
116
116
116
127
127
127
127
132
151
151
151
151
177
177
177
177
133.5
151
―
151
―
177
―
177
―
129
146
―
146
―
169
―
169
―
1.5
2
2
2
2
2.5
2.5
2.5
2.5
1
2
2
2
2
2.5
2.5
2.5
2.5
1.33
2.3
2.44
3.1
3.33
5.3
5.72
7.95
8.56
1.31
2.25
―
3.04
―
5.18
―
7.79
―
―
NF
―
108
113.5
112.5
132
151.5
―
112.8
121
121
101.5
106
106
103
106
―
106
111
111
111
116
116
114
123
123
137
159
159
138.5 134
159
155
―
―
1.5
2
2
1
2
2
1.4
2.78
3.02
1.38
2.72
―
4）Does not apply to side of the outer ring rib of type NF bearings.
B-101
● Cylindrical Roller Bearings
B
B
r
r1
r
r1
φD
φd φFW
r1
r1
φJ
Type NU
r
φJ
Type NJ
r
r1
r
φD φEW
Type NUP
φd φJ
Type N
Type NF
d 95 ∼ 120mm
Boundary dimensions
mm
B
rs min3）
Limiting speeds1）
Basic load ratings
dynamic static
dynamic static
kN
kgf
r1s min3） Cr
Cor
Cr
Cor
grease
oil
min-1
Bearing numbers2）
type
NJ
type
NUP
type
N
NU2219
NU2219E
NU319
NU319E
NU2319
NU2319E
NJ
NJ
NJ
NJ
NJ
NJ
NUP
NUP
NUP
NUP
NUP
NUP
N
―
N
―
N
―
5 400
4 500
4 100
4 100
3 600
3 800
3 500
3 400
3 100
NU1020
NU220
NU220E
NU2220
NU2220E
NU320
NU320E
NU2320
NU2320E
NJ
NJ
NJ
NJ
NJ
NJ
NJ
NJ
NJ
NUP
NUP
NUP
NUP
NUP
NUP
NUP
NUP
NUP
N
N
―
N
―
N
―
N
―
4 300
3 600
3 100
5 100
4 300
3 700
NU1021
NU221
NU321
NJ
NJ
NJ
NUP
NUP
NUP
N
N
N
17 700
29 500
37 000
42 000
52 500
41 000
53 500
80 500
89 500
4 100
3 400
3 100
3 100
2 800
3 000
2 700
2 600
2 400
4 800
4 000
3 700
3 700
3 300
3 500
3 100
3 100
2 800
NU1022
NU222
NU222E
NU2222
NU2222E
NU322
NU322E
NU2322
NU2322E
NJ
NJ
NJ
NJ
NJ
NJ
NJ
NJ
NJ
NUP
NUP
NUP
NUP
NUP
NUP
NUP
NUP
NUP
N
N
―
N
―
N
―
N
―
19 500
32 500
43 000
47 000
63 000
52 000
3 800
3 200
2 900
2 900
2 600
2 700
4 400
3 700
3 400
3 400
3 000
3 200
NU1024
NU224
NU224E
NU2224
NU2224E
NU324
NJ
NJ
NJ
NJ
NJ
NJ
NUP
NUP
NUP
NUP
NUP
NUP
N
N
―
N
―
N
d
D
95
170
170
200
200
200
200
43
43
45
45
67
67
2.1
2.1
3
3
3
3
2.1
2.1
3
3
3
3
230
286
259
335
370
460
298
370
285
385
460
585
23 500
29 200
26 400
34 000
38 000
47 000
30 500
38 000
29 500
39 500
47 000
59 500
3 600
3 300
3 400
3 100
3 000
2 700
4 300
3 800
4 000
3 600
3 500
3 200
100
150
180
180
180
180
215
215
215
215
24
34
34
46
46
47
47
73
73
1.5
2.1
2.1
2.1
2.1
3
3
3
3
1.1
2.1
2.1
2.1
2.1
3
3
3
3
93.0
183
249
258
335
299
380
410
570
126
217
305
340
445
335
425
505
715
9 500
18 600
25 400
26 300
34 000
30 500
38 500
42 000
58 000
12 800
22 200
31 000
34 500
45 500
34 500
43 500
51 500
73 000
4 600
3 800
3 500
3 500
3 100
3 300
2 900
2 900
2 600
105
160
190
225
26
36
49
2
2.1
3
1.1
2.1
3
105
201
320
142
241
360
10 700
20 500
32 500
14 500
24 600
36 500
110
170
200
200
200
200
240
240
240
240
28
38
38
53
53
50
50
80
80
2
2.1
2.1
2.1
2.1
3
3
3
3
1.1
2.1
2.1
2.1
2.1
3
3
3
3
131
240
293
320
385
360
450
605
675
174
290
365
415
515
400
525
790
880
13 400
24 500
29 800
32 500
39 000
36 500
46 000
61 500
69 000
120
180
215
215
215
215
260
28
40
40
58
58
55
2
2.1
2.1
2.1
2.1
3
1.1
2.1
2.1
2.1
2.1
3
139
260
335
350
450
450
191
320
420
460
620
510
14 100
26 500
34 000
35 500
46 000
46 000
1）This value achieved with machined cages; when pressed cages are used, 80% of this value is acceptable.
2）Production switched to E type only for bearing number for which there is no standard form.
3）Minimal allowable dimension for chamfer dimension r or r1.
B-102
type
NU
● Cylindrical Roller Bearings
ra
r1a
r1a
ra
φda
φDa φdc
φdd
φde
φdc
φdb φDb
φDb
Dynamic equivalent
radial load
Pr＝Fr
Static equivalent
radial load
Por＝Fr
Dimensions
Abutment and fillet dimensions
mm
type
NF
Fw
Ew
Mass
mm
J
kg
da
db
dc
dd
de
Da
min
min
max
min
min
max
Db
max
min4）
ras
r1as
max
max
type NU
type N
(approx.)
―
―
NF
―
―
―
113.5
112.5
121.5
121.5
121.5
121.5
151.5
―
173.5
―
173.5
―
121
121
132
132.7
132
132.7
106
106
108
108
108
108
106
―
108
―
108
―
111
111
119
119
119
119
116
116
124
124
124
124
123
123
134
134
134
134
159
159
187
187
187
187
159
―
187
―
187
―
155
―
178
―
178
―
2
2
2.5
2.5
2.5
2.5
2
2
2.5
2.5
2.5
2.5
3.79
4.14
6.13
6.62
9.2
9.8
3.71
―
5.99
―
9.02
―
―
NF
―
―
―
NF
―
―
―
113
120
119
120
119
129.5
127.5
129.5
127.5
137
160
―
160
―
185.5
―
185.5
―
117.8
128
128
128
128
140.5
140.3
140.5
140.3
106.5
111
111
111
111
113
113
113
113
108
111
―
111
―
113
―
113
―
111
117
117
117
117
125
125
125
125
116
122
122
122
122
132
132
132
132
119
130
130
130
130
143
143
143
143
142
169
169
169
169
202
202
202
202
143.5
169
―
169
―
202
―
202
―
139
164
―
164
―
190
―
190
―
1.5
2
2
2
2
2.5
2.5
2.5
2.5
1
2
2
2
2
2.5
2.5
2.5
2.5
1.45
3.33
3.66
4.57
5.01
7.49
8.57
11.7
12.8
1.43
3.26
―
4.48
―
7.32
―
11.5
―
―
NF
NF
119.5
126.8
135
145.5
168.8
195
124.7
135
147
111.5
116
118
114
116
118
118
124
132
122
129
137
126
137
149
151
179
212
153.5 147.5
179
173
212
199
2
2
2.5
1
2
2.5
1.84
3.95
8.53
1.81
3.87
8.33
―
NF
―
―
―
NF
―
―
―
125
132.5
132.5
132.5
132.5
143
143
143
143
155
178.5
―
178.5
―
207
―
207
―
131
141.5
142.1
141.5
142.1
155.5
156.6
155.5
156.6
116.5
121
121
121
121
123
123
123
123
119
121
―
121
―
123
―
123
―
124
130
130
130
130
140
140
140
140
128
135
135
135
135
145
145
145
145
132
144
144
144
144
158
158
158
158
161
189
189
189
189
227
227
227
227
163.5
189
―
189
―
227
―
227
―
157
182
―
182
―
211
―
211
―
2
2
2
2
2
2.5
2.5
2.5
2.5
1
2
2
2
2
2.5
2.5
2.5
2.5
2.33
4.63
4.27
6.56
7.4
10
11.1
17.1
19.4
2.3
4.54
―
6.43
―
9.77
―
16.8
―
―
NF
―
―
―
NF
135
143.5
143.5
143.5
143.5
154
165
191.5
―
191.5
―
226
141
153
153.9
153
153.9
168.5
126.5
131
131
131
131
133
129
131
―
131
―
133
134
141
141
141
141
151
138
146
146
146
146
156
142
156
156
156
156
171
171
204
204
204
204
247
173.5
204
―
204
―
247
167
196
―
196
―
230
2
2
2
2
2
2.5
1
2
2
2
2
2.5
2.44
5.57
5.97
8.19
9.18
12.8
2.4
5.46
―
8.03
―
12.5
4）Does not apply to side of the outer ring rib of type NF bearings.
B-103
● Cylindrical Roller Bearings
B
B
r
r1
r
φd φFW
φD
r
r1
Type NU
r1
r1
φJ
r
Type NJ
r
φD φEW
φJ
r1
Type NUP
φd φJ
Type N
Type NF
d 120 ∼ 160mm
Boundary dimensions
mm
B
rs min3）
Limiting speeds1）
Basic load ratings
dynamic static
dynamic
static
kN
kgf
r1s min3） Cr
Cor
Cr
Cor
grease
oil
min-1
type
NJ
type
NUP
type
N
NU324E
NU2324
NU2324E
NJ
NJ
NJ
NUP
NUP
NUP
―
N
―
4 000
3 400
3 100
3 100
2 700
2 900
2 600
2 600
2 300
NU1026
NU226
NU226E
NU2226
NU2226E
NU326
NU326E
NU2326
NU2326E
NJ
NJ
NJ
NJ
NJ
NJ
NJ
NJ
NJ
NUP
NUP
NUP
NUP
NUP
NUP
NUP
NUP
NUP
N
N
―
N
―
N
―
N
―
3 200
2 700
2 400
2 400
2 100
2 300
2 100
2 000
1 800
3 800
3 100
2 800
2 800
2 500
2 700
2 400
2 300
2 100
NU1028
NU228
NU228E
NU2228
NU2228E
NU328
NU328E
NU2328
NU2328E
NJ
NJ
NJ
NJ
NJ
NJ
NJ
NJ
NJ
NUP
NUP
NUP
NUP
NUP
NUP
NUP
NUP
NUP
N
N
―
N
―
N
―
N
―
3 000
2 500
2 200
2 200
2 000
2 100
1 900
1 900
1 700
3 500
2 900
2 600
2 600
2 400
2 500
2 300
2 200
2 000
NU1030
NU230
NU230E
NU2230
NU2230E
NU330
NU330E
NU2330
NU2330E
NJ
NJ
NJ
NJ
NJ
NJ
NJ
NJ
NJ
NUP
NUP
NUP
NUP
NUP
NUP
NUP
NUP
NUP
N
N
―
N
―
N
―
N
―
2 800
2 300
2 100
3 300
2 700
2 400
NU1032
NU232
NU232E
NJ
NJ
NJ
NUP
NUP
NUP
N
N
―
d
D
120
260
260
260
55
86
86
3
3
3
3
3
3
530
710
795
610
920
1 030
54 000 62 000
72 500 93 500
81 000 105 000
2 400
2 400
2 200
2 800
2 800
2 500
130
200
230
230
230
230
280
280
280
280
33
40
40
64
64
58
58
93
93
2
3
3
3
3
4
4
4
4
1.1
3
3
3
3
4
4
4
4
172
270
365
380
530
560
615
840
920
238
340
455
530
735
665
735
1 130
1 230
17 500 24 200
27 600 35 000
37 000 46 000
38 500 54 000
54 000 75 000
57 000 68 000
63 000 75 000
85 500 115 000
94 000 126 000
3 400
2 900
2 600
2 600
2 300
2 500
2 200
2 200
2 000
140
210
250
250
250
250
300
300
300
300
33
42
42
68
68
62
62
102
102
2
3
3
3
3
4
4
4
4
1.1
3
3
3
3
4
4
4
4
176
310
395
445
575
615
665
920
1 020
250
400
515
635
835
745
795
1 250
1 380
17 900 25 500
31 500 40 500
40 000 52 500
45 500 64 500
58 500 85 000
63 000 76 000
67 500 81 500
94 000 127 000
104 000 141 000
150
225
270
270
270
270
320
320
320
320
35
45
45
73
73
65
65
108
108
2.1
3
3
3
3
4
4
4
4
1.5
3
3
3
3
4
4
4
4
202
345
450
500
660
665
760
1 020
1 160
294
435
595
710
980
805
920
1 400
1 600
20 600 29 900
35 000 44 500
45 500 60 500
51 000 72 500
67 500 100 000
67 500 82 500
77 500 94 000
104 000 143 000
118 000 163 000
160
240
290
290
38
48
48
2.1
3
3
1.5
3
3
238
430
500
340
570
665
24 200
43 500
51 000
35 000
58 000
68 000
1）This value achieved with machined cages; when pressed cages are used, 80% of this value is acceptable.
2）Production switched to E type only for bearing number for which there is no standard form.
3）Minimal allowable dimension for chamfer dimension r or r1.
B-104
Bearing numbers2）
type
NU
● Cylindrical Roller Bearings
ra
r1a
r 1a
ra
φda
φDa φdc
φdd
φde
φdc
φdb φDb
φDb
Dynamic equivalent
radial load
Pr＝Fr
Static equivalent
radial load
Por＝Fr
Dimensions
Abutment and fillet dimensions
mm
type
NF
Fw
Ew
―
―
―
154
154
154
―
226
―
―
NF
―
―
―
NF
―
―
―
148
156
153.5
156
153.5
167
167
167
167
―
NF
―
―
―
NF
―
―
―
Mass
mm
kg
dc
dd
de
Da
min
min
max
min
min
max
169.2
168.5
169.2
133
133
133
―
133
―
151
151
151
156
156
156
171
171
171
247
247
247
―
247
―
―
230
―
2.5
2.5
2.5
2.5
2.5
2.5
13.9
21.5
26.1
―
21.1
―
182
204
―
204
―
243
―
243
―
154.8
165.5
164.7
165.5
164.7
182
183
182
183
136.5
143
143
143
143
146
146
146
146
139
143
―
143
―
146
―
146
―
146
151
151
151
151
164
164
164
164
151
158
158
158
158
169
169
169
169
156
168
168
168
168
184
184
184
184
191
217
217
217
217
264
264
264
264
193.5
217
―
217
―
264
―
264
―
184
208
―
208
―
247
―
247
―
2
2.5
2.5
2.5
2.5
3
3
3
3
1
2.5
2.5
2.5
2.5
3
3
3
3
3.69
6.3
6.9
10.2
11.8
17.4
19.4
26.9
30.9
3.63
6.17
―
10
―
17
―
26.4
―
158
169
169
169
169
180
180
180
180
192
221
―
221
―
260
―
260
―
164.8
179.5
180.2
179.5
180.2
196
196.8
196
196.8
146.5
153
153
153
153
156
156
156
156
149
153
―
153
―
156
―
156
―
156
166
166
166
166
176
176
176
176
161
171
171
171
171
182
182
182
182
166
182
182
182
182
198
198
198
198
201
237
237
237
237
284
284
284
284
203.5
237
―
237
―
284
―
284
―
194
225
―
225
―
265
―
265
―
2
2.5
2.5
2.5
2.5
3
3
3
3
1
2.5
2.5
2.5
2.5
3
3
3
3
4.05
7.88
8.73
12.9
15.8
21.2
23.2
33.8
38.7
3.98
7.72
―
12.6
―
20.7
―
33.1
―
―
NF
―
―
―
NF
―
―
―
169.5
182
182
182
182
193
193
193
193
205.5
238
―
238
―
277
―
277
―
176.7
193
194
193
194
210
211
210
211
158
163
163
163
163
166
166
166
166
161
163
―
163
―
166
―
166
―
167
179
179
179
179
190
190
190
190
173
184
184
184
184
195
195
195
195
178
196
196
196
196
213
213
213
213
214
257
257
257
257
304
304
304
304
217
257
―
257
―
304
―
304
―
207.5
242
―
242
―
282
―
282
―
2
2.5
2.5
2.5
2.5
3
3
3
3
1.5
2.5
2.5
2.5
2.5
3
3
3
3
4.77
9.92
11
16.3
19.7
25.3
28.4
40.6
47.2
4.7
9.72
―
16
―
24.7
―
39.8
―
―
NF
―
180
195
195
220
255
―
188
207
207.8
168
173
173
171
173
―
178
192
192
184
197
197
189
210
210
229
277
277
232
277
―
222
259
―
2
2.5
2.5
1.5
2.5
2.5
5.9
13.7
15.6
5.81
13.4
―
4）Does not apply to side of the outer ring rib of type NF bearings.
B-105
max
ras
type N
db
J
Db
r1as type NU
da
min4）
max
max
(approx.)
● Cylindrical Roller Bearings
B
B
r
r1
r
φd φFW
φD
r
r1
Type NU
r1
r1
φJ
r
Type NJ
r
φD φEW
φJ
r1
Type NUP
φd φJ
Type N
Type NF
d 160 ∼ 200mm
Boundary dimensions
Limiting speeds1）
Basic load ratings
dynamic static
dynamic
static
kN
kgf
r1s min3） Cr
Cor
Cr
Cor
grease
oil
min-1
d
D
mm
B
160
290
290
340
340
340
340
80
80
68
68
114
114
3
3
4
4
4
4
3
3
4
4
4
4
630
810
700
860
1 070
1 310
940
1 190
875
1 050
1 520
1 820
64 500
82 500
71 000
87 500
109 000
134 000
96 000
121 000
89 500
107 000
155 000
186 000
2 100
1 900
2 000
1 800
1 700
1 600
2 400
2 200
2 300
2 100
2 000
1 900
170
260
310
310
310
310
360
360
42
52
52
86
86
72
120
2.1
4
4
4
4
4
4
2.1
4
4
4
4
4
4
278
475
605
715
965
795
1 220
400
635
800
1 080
1 410
1 010
1 750
28 300
48 500
61 500
73 000
98 500
81 500
125 000
41 000
65 000
81 500
110 000
144 000
103 000
179 000
2 600
2 200
2 000
2 000
1 800
1 800
1 600
180
280
320
320
320
320
380
380
46
52
52
86
86
75
126
2.1
4
4
4
4
4
4
2.1
4
4
4
4
4
4
340
495
625
745
1 010
905
1 380
485
675
850
1 140
1 510
1 150
1 990
35 000
50 500
64 000
76 000
103 000
92 000
141 000
49 500
69 000
87 000
117 000
154 000
118 000
203 000
190
290
340
340
340
340
400
400
46
55
55
92
92
78
132
2.1
4
4
4
4
5
5
2.1
4
4
4
4
5
5
350
555
695
830
1 100
975
1 520
510
770
955
1 290
1 670
1 260
2 220
36 000
56 500
71 000
84 500
113 000
99 500
155 000
200
310
360
360
360
360
420
51
58
58
98
98
80
2.1
4
4
4
4
5
2.1
4
4
4
4
5
390
620
765
925
1 220
975
580
865
1 060
1 440
1 870
1 270
40 000
63 500
78 000
94 000
125 000
99 500
rs min3）
Bearing numbers2）
type
NJ
type
NUP
type
N
NU2232
NU2232E
NU332
NU332E
NU2332
NU2332E
NJ
NJ
NJ
NJ
NJ
NJ
NUP
NUP
NUP
NUP
NUP
NUP
N
―
N
―
N
―
3 000
2 500
2 300
2 300
2 100
2 200
1 900
NU1034
NU234
NU234E
NU2234
NU2234E
NU334
NU2334
NJ
NJ
NJ
NJ
NJ
NJ
NJ
NUP
NUP
NUP
NUP
NUP
NUP
NUP
N
N
―
N
―
N
N
2 400
2 000
1 800
1 800
1 600
1 700
1 500
2 900
2 400
2 200
2 200
1 900
2 000
1 800
NU1036
NU236
NU236E
NU2236
NU2236E
NU336
NU2336
NJ
NJ
NJ
NJ
NJ
NJ
NJ
NUP
NUP
NUP
NUP
NUP
NUP
NUP
N
N
―
N
―
N
N
52 000
78 500
97 500
131 000
170 000
129 000
226 000
2 300
1 900
1 700
1 700
1 500
1 600
1 400
2 700
2 200
2 000
2 000
1 800
1 900
1 700
NU1038
NU238
NU238E
NU2238
NU2238E
NU338
NU2338
NJ
NJ
NJ
NJ
NJ
NJ
NJ
NUP
NUP
NUP
NUP
NUP
NUP
NUP
N
N
―
N
―
N
N
59 500
88 500
108 000
147 000
191 000
130 000
2 200
1 800
1 600
1 600
1 500
1 500
2 600
2 100
1 900
1 900
1 700
1 800
NU1040
NU240
NU240E
NU2240
NU2240E
NU340
NJ
NJ
NJ
NJ
NJ
NJ
NUP
NUP
NUP
NUP
NUP
NUP
N
N
―
N
―
N
1）This value achieved with machined cages; when pressed cages are used, 80% of this value is acceptable.
2）Production switched to E type only for bearing number for which there is no standard form.
3）Minimal allowable dimension for chamfer dimension r or r1.
B-106
type
NU
● Cylindrical Roller Bearings
ra
r1a
r 1a
ra
φda
φDa φdc
φdd
φde
φdc
φdb φDb
φDb
Dynamic equivalent
radial load
Pr＝Fr
Static equivalent
radial load
Por＝Fr
Dimensions
Abutment and fillet dimensions
mm
type
NF
Fw
Ew
―
―
NF
―
―
―
195
193
208
204
208
204
255
―
292
―
292
―
―
NF
―
―
―
NF
―
193
208
207
208
205
220
220
―
NF
―
―
―
NF
―
Mass
mm
kg
dc
dd
de
Da
min
min
max
min
min
max
207
206.6
225
223.2
225
223.2
173
173
176
176
176
176
173
―
176
―
176
―
192
192
200
200
200
200
197
197
211
211
211
211
210
210
228
228
228
228
277
277
324
324
324
324
277
―
324
―
324
―
259
―
297
―
297
―
2.5
2.5
3
3
3
3
2.5
2.5
3
3
3
3
22
25.1
31.3
34
50.5
56
21.6
―
30.6
―
49.5
―
237
272
―
272
―
310
310
201.8
220.5
221.4
220.5
220.2
238
238
181
186
186
186
186
186
186
181
186
―
186
―
186
186
190
204
204
204
204
216
216
197
211
211
211
211
223
223
203
223
223
223
223
241
241
249
294
294
294
294
344
344
249
294
―
294
―
344
344
239
277
―
277
―
315
315
2
3
3
3
3
3
3
2
3
3
3
3
3
3
7.88
17
19.6
27.2
31
37
59.5
7.76
16.7
―
26.7
―
36.1
58.3
205
218
217
218
215
232
232
255
282
―
282
―
328
328
215
230.5
231.4
230.5
230.2
252
252
191
196
196
196
196
196
196
191
196
―
196
―
196
196
203
214
214
214
214
227
227
209
221
221
221
221
235
235
216
233
233
233
233
255
255
269
304
304
304
304
364
364
269
304
―
304
―
364
364
257
287
―
287
―
333
333
2
3
3
3
3
3
3
2
3
3
3
3
3
3
10.3
17.7
20.4
28.4
31.9
44.2
69.5
10.1
17.3
―
27.8
―
43.2
68.1
―
NF
―
―
―
NF
―
215
231
230
231
228
245
245
265
299
―
299
―
345
345
225
244.5
245.2
244.5
244
265
265
201
206
206
206
206
210
210
201
206
―
206
―
210
210
213
227
227
227
227
240
240
219
234
234
234
234
248
248
226
247
247
247
247
268
268
279
324
324
324
324
380
380
279
324
―
324
―
380
380
267
304
―
304
―
351
351
2
3
3
3
3
4
4
2
3
3
3
3
4
4
10.7
21.3
24.2
34.4
39.5
49.4
80.5
10.5
20.8
―
33.7
―
48.3
78.9
―
NF
―
―
―
NF
229
244
243
244
241
260
281
316
―
316
―
360
239.4
258
259
258
257.8
280
211
216
216
216
216
220
211
216
―
216
―
220
226
240
240
240
240
254
233
247
247
247
247
263
241
261
261
261
261
283
299
344
344
344
344
400
299
344
―
344
―
400
283
321
―
321
―
366
2
3
3
3
3
4
2
3
3
3
3
4
13.9
25.3
28.1
41.3
47.8
55.8
13.7
24.8
―
40.5
4）Does not apply to side of the outer ring rib of type NF bearings.
B-107
max
ras
type N
db
J
Db
r1as type NU
da
min4）
max
max
(approx.)
54.5
● Cylindrical Roller Bearings
B
B
r
r1
r
φd φFW
φD
r
r1
Type NU
r1
r1
φJ
r
Type NJ
r
φD φEW
φJ
r1
Type NUP
φd φJ
Type N
Type NF
d 200 ∼ 360mm
Boundary dimensions
Limiting speeds1）
Bearing numbers2）
Basic load ratings
dynamic static
dynamic
static
kN
kgf
r1s min3） Cr
Cor
Cr
Cor
grease
oil
type
NU
type
NJ
type
NUP
type
N
min-1
d
D
mm
B
200
420
138
5
5
1 510
2 240
154 000 229 000
1 400
1 600
NU2340
NJ
NUP
N
220
340
400
400
460
460
56
65
108
88
145
3
4
4
5
5
3
4
4
5
5
500
760
1 140
1 190
1 780
750
1 080
1 810
1 570
2 620
51 000
77 500
116 000
122 000
181 000
76 500
110 000
184 000
161 000
268 000
2 000
1 600
1 500
1 400
1 200
2 300
1 900
1 700
1 600
1 400
NU1044
NU244
NU2244
NU344
NU2344
NJ
NJ
NJ
NJ
NJ
NUP
NUP
NUP
NUP
NUP
N
N
N
N
N
240
360
440
440
500
500
56
72
120
95
155
3
4
4
5
5
3
4
4
5
5
530
935
1 440
1 430
2 100
820
1 340
2 320
1 950
3 200
54 000
95 500
146 000
146 000
214 000
83 500
136 000
236 000
198 000
325 000
1 800
1 500
1 300
1 300
1 100
2 100
1 700
1 600
1 500
1 300
NU1048
NU248
NU2248
NU348
NU2348
NJ
NJ
NJ
NJ
NJ
NUP
NUP
NUP
NUP
NUP
N
N
N
N
N
260
400
480
480
540
540
65
80
130
102
165
4
5
5
6
6
4
5
5
6
6
645
1 150
1 780
1 620
2 340
1 000
1 660
2 930
2 230
3 600
65 500
117 000
182 000
165 000
239 000
102 000
170 000
299 000
228 000
365 000
1 600
1 300
1 200
1 200
1 000
1 900
1 600
1 400
1 400
1 200
NU1052
NU252
NU2252
NU352
NU2352
NJ
NJ
NJ
NJ
NJ
NUP
NUP
NUP
NUP
NUP
N
N
N
N
N
280
420
500
500
580
580
65
80
130
108
175
4
5
5
6
6
4
5
5
6
6
660
1 190
1 840
1 820
2 700
1 050
1 760
3 100
2 540
4 250
67 000
121 000
188 000
185 000
275 000
107 000
180 000
315 000
259 000
430 000
1 500
1 200
1 100
1 100
920
1 800
1 400
1 300
1 200
1 100
NU1056
NU256
NU2256
NU356
NU2356
NJ
NJ
NJ
NJ
NJ
NUP
NUP
NUP
NUP
NUP
N
N
N
N
N
300
460
540
540
74
85
140
4
5
5
4
5
5
855
1 400
2 180
1 340
2 070
3 650
87 000 137 000
143 000 211 000
223 000 370 000
1 400
1 100
1 000
1 600
1 300
1 200
NU1060
NU260
NU2260
NJ
NJ
NJ
NUP
NUP
NUP
N
N
N
320
480
580
580
74
92
150
4
5
5
4
5
5
875
1 600
2 550
1 410
2 390
4 350
89 500 143 000
164 000 244 000
260 000 445 000
1 300
1 000
950
1 500
1 200
1 100
NU1064
NU264
NU2264
NJ
NJ
NJ
NUP
NUP
NUP
N
N
N
340
520
82
5
5
1 050
1 670
107 000 170 000
1 200
1 400
NU1068
NJ
NUP
N
360
540
82
5
5
1 080
1 750
110 000 179 000
1 100
1 300
NU1072
NJ
NUP
N
rs min3）
1）This value achieved with machined cages; when pressed cages are used, 80% of this value is acceptable.
2）Production switched to E type only for bearing number for which there is no standard form.
3）Minimal allowable dimension for chamfer dimension r or r1.
B-108
● Cylindrical Roller Bearings
ra
r1a
r 1a
ra
φda
φDa φdc
φdd
φde
φdc
φdb φDb
φDb
Dynamic equivalent
radial load
Pr＝Fr
Static equivalent
radial load
Por＝Fr
Dimensions
Abutment and fillet dimensions
mm
type
NF
Fw
Ew
―
260
―
NF
―
NF
―
Mass
mm
kg
da
db
dc
dd
de
Da
Db
J
min
min
max
min
min
max
360
280
220
220
254
263
283
400
400
250
270
270
284
284
310
350
350
396
396
262
286
286
307
307
233
236
236
240
240
233
236
236
240
240
248
266
266
279
279
254
273
273
287
287
264
289
289
307
307
327
384
384
440
440
―
NF
―
NF
―
270
295
295
310
310
330
385
385
430
430
282
313
313
335
335
253
256
256
260
260
253
256
256
260
260
268
293
293
305
305
275
298
298
313
313
284
316
316
333
333
―
NF
―
NF
―
296
320
320
336
336
364
420
420
464
464
309.6
340
340
362
362
276
280
280
284
284
276
280
280
284
284
292
318
318
331
331
300
323
323
339
339
―
NF
―
NF
―
316
340
340
362
362
384
440
440
498
498
329.6
360
360
390
390
296
300
300
304
304
296
300
300
304
304
312
336
336
356
356
―
NF
―
340
364
364
420
476
476
356
387
387
316
320
320
316
320
320
―
NF
―
360
390
390
440
510
510
376
415
415
336
340
340
―
385
475
403
―
405
495
423
min4）
r1as type NU
type N
max
max
366
4
4
92.6
90.7
327
384
384
440
440
313
355
355
402
402
2.5
3
3
4
4
2.5
18.2
3
37.7
3
59
4
73.4
4
116
17.9
37
57.8
71.7
114
347
424
424
480
480
347
424
424
480
480
333
390
390
436
436
2.5
3
3
4
4
2.5
19.6
3
50.2
3
80
4
93.4
4
147
19.3
49.2
78.4
91.3
144
312
343
343
359
359
384
460
460
516
516
384
460
460
516
516
367
426
426
471
471
3
4
4
5
5
3
4
4
5
5
29.1
66.9
104
117
182
28.7
65.6
102
114
178
320
343
343
366
366
332
365
365
386
386
404
480
480
556
556
404
480
480
556
556
387
446
446
505
505
3
4
4
5
5
3
4
4
5
5
30.9
70.8
109
142
222
30.4
69.4
107
139
218
336
361
361
344
368
368
358
392
392
444
520
520
444
520
520
423
482
482
3
4
4
3
4
4
43.6
88.2
138
42.9
86.4
135
336
340
340
356
386
386
364
393
393
378
419
419
464
560
560
464
560
560
443
516
516
3
4
4
3
4
4
46
111
172
45.3
109
168
360
360
381
390
405
500
500
479
4
4
61.8
60.8
380
380
401
410
425
520
520
499
4
4
64.7
63.7
4）Does not apply to side of the outer ring rib of type NF bearings.
B-109
max
ras
(approx.)
● Cylindrical Roller Bearings
B
B
r
r1
r
φd φFW
φD
r
r1
Type NU
r1
φJ
r1
r
Type NJ
r
φD φEW
φJ
r1
Type NUP
φd φJ
Type N
Type NF
d 380 ∼ 500mm
Boundary dimensions
mm
B
rs min3）
Limiting speeds1）
Bearing numbers2）
Basic load ratings
dynamic static
dynamic
static
kN
kgf
r1s min3） Cr
Cor
Cr
Cor
grease
oil
type
NU
type
NJ
type
NUP
type
N
min-1
d
D
380
560
82
5
5
1 100
1 840
112 000 187 000
1 100
1 200
NU1076
NJ
NUP
N
400
600
90
5
5
1 320
2 190
134 000 223 000
990
1 200
NU1080
NJ
NUP
N
420
620
90
5
5
1 350
2 290
138 000 233 000
950
1 100
NU1084
NJ
NUP
N
440
650
94
6
6
1 430
2 430
146 000 248 000
900
1 100
NU1088
NJ
NUP
N
460
680
100
6
6
1 540
2 630
157 000 269 000
850
1 000
NU1092
NJ
NUP
N
480
700
100
6
6
1 580
2 750
161 000 280 000
810
960
NU1096
NJ
NUP
N
500
720
100
6
6
1 610
2 870
164 000 292 000
770
910
NU10/500
NJ
NUP
N
1）This value achieved with machined cages; when pressed cages are used, 80% of this value is acceptable.
2）Production switched to E type only for bearing number for which there is no standard form.
3）Minimal allowable dimension for chamfer dimension r or r1.
B-110
● Cylindrical Roller Bearings
ra
r1a
r 1a
ra
φda
φDa φdc
φdd
φde
φdc
φdb φDb
φDb
Dynamic equivalent
radial load
Pr＝Fr
Static equivalent
radial load
Por＝Fr
Dimensions
Abutment and fillet dimensions
mm
type
NF
Fw
Ew
―
425
―
Mass
mm
kg
dc
dd
de
Da
J
min
min
max
min
min
max
515
443
400
400
421
430
445
540
540
519
4
4
67.5
66.5
450
550
470
420
420
446
455
473
580
580
554
4
4
87.6
86.3
―
470
570
490
440
440
466
475
493
600
600
574
4
4
91
89.6
―
493
597
513.8
464
464
488
499
517
626
626
602
5
5
105
103
―
516
624
537.6
484
484
511
522
541
656
656
629
5
5
122
120
―
536
644
557.6
504
504
531
542
561
676
676
649
5
5
126
124
―
556
664
577.6
524
524
551
562
581
696
696
669
5
5
130
128
B-111
max
ras
type N
db
4）Does not apply to side of the outer ring rib of type NF bearings.
Db
r1as type NU
da
min4）
max
max
(approx.)
● L Type Loose Rib
L type collar ring
B2
B2
r1
r1
B1
B1
φd φd1
φd φd1
NH＝NJ＋HJ
NUJ＝NU＋HJ
d 20 ∼ 60mm
Dimensions
Bearing
numbers
mm
d
r1s min1）
Dimensions
kg
mm
B1
B2
29.9
29.5
29.9
29.5
31.8
31.1
31.8
31.1
3
3
3
3
4
4
4
4
6.75
5.5
7.5
6.5
7.5
6.5
8.5
7.5
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
HJ204
HJ204E
HJ2204
HJ2204E
HJ304
HJ304E
HJ2304
HJ2304E
0.012
0.009
0.013
0.01
0.017
0.014
0.018
0.015
34.8
34.5
34.8
34.5
39
38
39
38
43.6
3
3
3
3
4
4
4
4
6
7.25
6.
7.5
6.5
8
7
9
8
10.5
0.6
0.6
0.6
0.6
1.1
1.1
1.1
1.1
1.5
HJ205
HJ205E
HJ2205
HJ2205E
HJ305
HJ305E
HJ2305
HJ2305E
HJ405
0.015
0.012
0.015
0.013
0.025
0.021
0.027
0.024
0.057
30
41.7
41.1
41.7
41.1
45.9
44.9
45.9
44.9
50.5
4
4
4
4
5
5
5
5
7
8.25
7
8.5
7.5
9.5
8.5
11.5
9.5
11.5
0.6
0.6
0.6
0.6
1.1
1.1
1.1
1.1
1.5
HJ206
HJ206E
HJ2206
HJ2206E
HJ306
HJ306E
HJ2306
HJ2306E
HJ406
0.025
0.017
0.025
0.02
0.039
0.035
0.043
0.035
0.08
35
47.6
48
47.6
48
50.8
51
50.8
51
59
4
4
4
4
6
6
6
6
8
8
7
8.5
8.5
11
9.5
14
11
13
0.6
0.6
0.6
0.6
1.1
1.1
1.1
1.1
1.5
HJ207
HJ207E
HJ2207
HJ2207E
HJ307
HJ307E
HJ2307
HJ2307E
HJ407
0.03
0.027
0.031
0.031
0.056
0.048
0.064
0.055
0.12
20
25
d1
Mass
d
Mass
kg
r1s min1）
B1
B2
40
54.2
53.9
54.2
53.9
58.4
57.6
58.4
57.6
64.8
5
5
5
5
7
7
7
7
8
9
8.5
9.5
9
12.5
11
14.5
12.5
13
1.1
1.1
1.1
1.1
1.5
1.5
1.5
1.5
2
HJ208
HJ208E
HJ2208
HJ2208E
HJ308
HJ308E
HJ2308
HJ2308E
HJ408
0.046
0.042
0.047
0.045
0.083
0.07
0.09
0.08
0.14
45
59
58.9
58.9
64
64.5
64
64.5
71.8
5
5
5
7
7
7
7
8
9.5
8.5
9
12.5
11.5
15
13
13.5
1.1
1.1
1.1
1.5
1.5
1.5
1.5
2
＊ HJ209
HJ209E
HJ2209E
HJ309
HJ309E
HJ2309
HJ2309E
HJ409
0.053
0.047
0.05
0.099
0.093
0.109
0.103
0.175
50
64.6
63.9
64.6
71
71.4
71
71.4
78.8
5
5
5
8
8
8
8
9
10
9
9.5
14
13
17
14.5
14.5
1.1
1.1
1.1
2
2
2
2
2.1
HJ210
＊ HJ210E
HJ2210
HJ310
HJ310E
HJ2310
HJ2310E
HJ410
0.063
0.055
0.061
0.142
0.134
0.157
0.15
0.23
55
70.8
70.8
70.8
77.2
77.7
77.2
77.7
85.2
6
6
6
9
9
9
9
10
11
9.5
10
15
14
18.5
15.5
16.5
1.1
1.1
1.1
2
2
2
2
2.1
＊ HJ211
HJ211E
HJ2211E
HJ311
HJ311E
HJ2311
HJ2311E
HJ411
0.084
0.072
0.076
0.182
0.168
0.203
0.185
0.29
60
78.4
77.6
6
6
11
10
1.5
1.5
＊ HJ212
＊ HJ212E
0.108
0.094
(approx.)
d1
Bearing
numbers
(approx.)
1）Minimal allowable dimension for chamfer dimension r. Note: 1. This L type collar ring is used with NU type cylindrical roller bearings; in duplex
arrangements with NJ or NU type bearing numbers, they become NH type and NUJ type respectively. For bearing dimensions, allowable rotations, and
mass, please refer to pages B-94 to B-98. 2. " ＊ " indicates L type collar rings that can also be used with dimension series 22 bearings.
B-112
● L Type Loose Rib
B2
B2
r1
r1
B1
B1
φd φd1
φd φd1
NH＝NJ＋HJ
NUJ＝NU＋HJ
d 60 ∼ 105mm
Dimensions
Bearing
numbers
mm
d
r1s min1）
Mass
Dimensions
kg
mm
d1
B1
B2
60
84.2
84.6
84.2
84.6
91.8
9
9
9
9
10
15.5
14.5
19
16
16.5
2.1
2.1
2.1
2.1
2.1
HJ312
HJ312E
HJ2312
HJ2312E
HJ412
0.22
0.205
0.245
0.23
0.34
65
84.8
84.5
84.8
84.5
91
91
91
91
98.5
6
6
6
6
10
10
10
10
11
11
10
11.5
10.5
17
15.5
20
18
18
1.5
1.5
1.5
1.5
2.1
2.1
2.1
2.1
2.1
HJ213
HJ213E
HJ2213
HJ2213E
HJ313
HJ313E
HJ2313
HJ2313E
HJ413
0.123
0.111
0.126
0.118
0.28
0.25
0.304
0.29
0.42
70
89.6
89.5
89.5
98
98
98
98
110.5
7
7
7
10
10
10
10
12
12.5
11
11.5
17.5
15.5
20.5
18.5
20
1.5
1.5
1.5
2.1
2.1
2.1
2.1
3
＊ HJ214
HJ214E
HJ2214E
HJ314
HJ314E
HJ2314
HJ2314E
HJ414
0.15
0.13
0.138
0.33
0.293
0.358
0.35
0.605
75
94
94.5
94.5
104.2
104.6
104.2
104.6
116.0
7
7
7
11
11
11
11
13
12.5
11
11.5
18.5
16.5
21.5
19.5
21.5
1.5
1.5
1.5
2.1
2.1
2.1
2.1
3
＊ HJ215
HJ215E
HJ2215E
HJ315
HJ315E
HJ2315
HJ2315E
HJ415
0.156
0.141
0.164
0.4
0.35
0.432
0.41
0.71
101.2
101.7
111.8
111
111.8
8
8
11
11
11
13.5
12.5
19.5
17
23
2
2
2.1
2.1
2.1
＊ HJ216
＊ HJ216E
HJ316
HJ316E
HJ2316
0.207
0.193
0.47
0.405
0.511
80
Bearing
numbers
Mass
kg
B2
r1s min1）
d
d1
B1
80
111
122
11
13
20
22
2.1
3
85
108.2
107.7
107.7
117.5
118.4
117.5
118.4
8
8
8
12
12
12
12
14
12.5
13
20.5
18.5
24
22
2
2
2
3
3
3
3
＊ HJ217
HJ217E
HJ2217E
HJ317
HJ317E
HJ2317
HJ2317E
0.25
0.21
0.216
0.56
0.505
0.606
0.55
90
114.2
114.6
114.2
114.6
125
124.7
125
124.7
9
9
9
9
12
12
12
12
15
14
16
15
21
18.5
26
22
2
2
2
2
3
3
3
3
HJ218
HJ218E
HJ2218
HJ2218E
HJ318
HJ318E
HJ2318
HJ2318E
0.305
0.272
0.315
0.308
0.63
0.548
0.704
0.69
95
121
121
121
121
132
132.7
132
132.7
9
9
9
9
13
13
13
13
15.5
14.0
16.5
15.5
22.5
20.5
26.5
24.5
2.1
2.1
2.1
2.1
3
3
3
3
HJ219
HJ219E
HJ2219
HJ2219E
HJ319
HJ319E
HJ2319
HJ2319E
0.352
0.304
0.363
0.335
0.76
0.7
0.826
0.8
100
128
128
128
128
140.5
140.3
140.5
140.3
10
10
10
10
13
13
13
13
17
15
18
16
22.5
20.5
27.5
23.5
2.1
2.1
2.1
2.1
3
3
3
3
HJ220
HJ220E
HJ2220
HJ2220E
HJ320
HJ320E
HJ2320
HJ2320E
0.444
0.38
0.456
0.385
0.895
0.8
0.986
0.92
105
135.0
10
17.5
2.1
HJ221
0.505
(approx.)
(approx.)
HJ2316E
HJ416
0.45
0.78
1）Minimal allowable dimension for chamfer dimension r. Note: 1. This L type collar ring is used with NU type cylindrical roller bearings; in duplex
arrangements with NJ or NU type bearing numbers, they become NH type and NUJ type respectively. For bearing dimensions, allowable rotations, and
mass, please refer to pages B-98 to B-102. 2. " ＊ " indicates L type collar rings that can also be used with dimension series 22 bearings.
B-113
● L Type Loose Rib
L type collar ring
B2
B2
r1
r1
B1
B1
φd φd1
φd φd1
NH＝NJ＋HJ
NUJ＝NU＋HJ
d 105 ∼ 200mm
Dimensions
Bearing
numbers
mm
r1s min1）
Mass
Dimensions
kg
mm
d
d1
B1
B2
105
147.0
13
22.5
3
HJ321
0.97
110
141.5
142.1
141.5
142.1
155.5
156.6
155.5
156.6
11
11
11
11
14
14
14
14
18.5
17
20.5
19.5
23
22
28
26.5
2.1
2.1
2.1
2.1
3
3
3
3
HJ222
HJ222E
HJ2222
HJ2222E
HJ322
HJ322E
HJ2322
HJ2322E
0.615
0.553
0.645
0.605
1.17
1.09
1.28
1.25
153
153.9
153
153.9
168.5
169.2
168.5
169.2
11
11
11
11
14
14
14
14
19
17
22
20
23.5
22.5
28
26
2.1
2.1
2.1
2.1
3
3
3
3
HJ224
HJ224E
HJ2224
HJ2224E
HJ324
HJ324E
HJ2324
HJ2324E
0.715
0.634
0.767
0.705
1.4
1.28
1.53
1.42
165.5
164.7
165.5
164.7
182
183
182
183
11
11
11
11
14
14
14
14
19
17
25
21
24
23
29.5
28
3
3
3
3
4
4
4
4
HJ226
HJ226E
HJ2226
HJ2226E
HJ326
HJ326E
HJ2326
HJ2326E
0.84
0.684
0.953
0.831
1.62
1.53
1.8
1.75
179.5
180.2
179.5
180.2
196
196.8
196
196.8
11
11
11
11
15
15
15
15
19
18
25
23
26
25
33.5
31
3
3
3
3
4
4
4
4
HJ228
HJ228E
HJ2228
HJ2228E
HJ328
HJ328E
HJ2328
HJ2328E
1
0.929
1.14
1.11
1.93
1.91
2.21
2.3
193
12
20.5
3
HJ230
1.24
120
130
140
150
Bearing
numbers
Mass
kg
r1s min1）
d
d1
B1
B2
150
194
193
194
210
211
210
211
12
12
12
15
15
15
15
19.5
26.5
24.5
26.5
25
34
31.5
3
3
3
4
4
4
4
HJ230E
HJ2230
HJ2230E
HJ330
HJ330E
HJ2330
HJ2330E
1.18
1.39
1.42
2.37
2.25
2.69
2.6
160
207
207.8
207
206.6
225
223.2
225
223.2
12
12
12
12
15
15
15
15
21
20
28
24.5
28
25
37
32
3
3
3
3
4
4
4
4
HJ232
HJ232E
HJ2232
HJ2232E
HJ332
HJ332E
HJ2332
HJ2332E
1.48
1.34
1.69
1.61
2.75
2.4
3.16
2.85
170
220.5
221.4
220.5
220.2
238
238
12
12
12
12
16
16
22
20
29
24
29.5
38.5
4
4
4
4
4
4
HJ234
HJ234E
HJ2234
HJ2234E
HJ334
HJ2334
1.7
1.51
1.93
1.82
3.25
3.71
180
230.5
231.4
230.5
230.2
252
252
12
12
12
12
17
17
22
20
29
24
30.5
40
4
4
4
4
4
4
HJ236
HJ236E
HJ2236
HJ2236E
HJ336
HJ2336
1.8
1.7
2.04
1.91
3.85
4.42
190
244.5
245.2
244.5
244
265
265
13
13
13
13
18
18
23.5
21.5
31.5
26.5
32
41.5
4
4
4
4
5
5
HJ238
HJ238E
HJ2238
HJ2238E
HJ338
HJ2338
2.2
1.94
2.52
2.38
4.45
5.05
200
258
14
25
4
HJ240
2.6
(approx.)
(approx.)
1）Minimal allowable dimension for chamfer dimension r. Note: 1. This L type collar ring is used with NU type cylindrical roller bearings; in duplex
arrangements with NJ or NU type bearing numbers, they become NH type and NUJ type respectively. For bearing dimensions, allowable rotations, and
mass, please refer to pages B-102 to B-108. 2. " ＊ " indicates L type collar rings that can also be used with dimension series 22 bearings.
B-114
● L Type Loose Rib
B2
B2
r1
B1
r1
B1
φd φd1
NH＝NJ＋HJ
φd φd1
NUJ＝NU＋HJ
d 200 ∼ 320mm
Dimensions
Bearing
numbers
mm
Mass
kg
r1s min1）
d
d1
B1
B2
200
259
258
257.8
280
280
14
14
14
18
18
23
34
28
33
44.5
4
4
4
5
5
HJ240E
HJ2240
HJ2240E
HJ340
HJ2340
2.35
2.99
2.86
5
5.76
220
286
307
15
20
27.5
36
4
5
HJ244
HJ344
3.55
7.05
240
313
335
16
22
29.5
39.5
4
5
HJ248
HJ348
4.65
8.2
260
340
362
18
24
33
43
5
6
HJ252
HJ352
6.2
11.4
280
360
390
18
26
33
46
5
6
HJ256
HJ356
7.39
13.9
300
387
20
34.5
5
HJ260
9.14
320
415
21
37
5
HJ264
(approx.)
11.3
1）Minimal allowable dimension for chamfer dimension r. Note: 1. This L type collar ring is used with NU type cylindrical roller bearings; in duplex
arrangements with NJ or NU type bearing numbers, they become NH type and NUJ type respectively. For bearing dimensions, allowable rotations, and
mass, please refer to pages B-108 to B-111. 2. " ＊ " indicates L type collar rings that can also be used with dimension series 22 bearings.
B-115
● Double Row Cylindrical Roller Bearings
B
B
r
r
r
r
φd
φd φFW
φD
φD φEw
φd
Type NNU
Cylindrical bore
φd
Type NN
Tapered bore
Cylindrical bore
Tapered bore
d 25 ∼ 110mm
Boundary dimensions
Basic load ratings
dynamic
static
dynamic
static
kN
kgf
mm
rs min2）
d
D
B
Cr
25
47
16
0.6
25.8
30
55
19
1
35
62
20
40
68
45
Cor
Limiting speeds
min-1
grease
oil
Bearing
type NNU
cylindrical
tapered1）
bore
bore
Cr
Cor
30.0
2 630
3 050
14 000
17 000
―
―
31.0
37.0
3 150
3 800
12 000
15 000
―
―
1
38.0
47.5
3 850
4 850
11 000
13 000
―
―
21
1
43.5
55.5
4 400
5 650
9 700
11 000
―
―
75
23
1
52.0
68.5
5 300
7 000
8 800
10 000
―
―
50
80
23
1
53.0
72.5
5 400
7 400
8 000
9 400
―
―
55
90
26
1.1
69.5
96.5
7 050
9 850
7 300
8 600
―
―
60
95
26
1.1
71.0
102
7 250
10 400
6 700
7 900
―
―
65
100
26
1.1
75.0
111
7 650
11 400
6 200
7 300
―
―
70
110
30
1.1
94.5
143
9 650
14 600
5 800
6 800
―
―
75
115
30
1.1
96.5
149
9 850
15 200
5 400
6 300
―
―
80
125
34
1.1
116
179
11 800
18 200
5 100
5 900
―
―
85
130
34
1.1
122
194
12 400
19 800
4 800
5 600
―
―
90
140
37
1.5
143
228
14 600
23 200
4 500
5 300
―
―
95
145
37
1.5
146
238
14 900
24 200
4 300
5 000
―
―
100
140
150
40
37
1.1
1.5
131
153
260
256
13 300
15 600
26 500
26 100
4 300
4 000
5 100
4 800
NNU4920
―
NNU4920K
―
105
145
160
40
41
1.1
2
133
198
268
320
13 500
20 200
27 400
33 000
4 100
3 800
4 800
4 500
NNU4921
―
NNU4921K
―
110
150
170
40
45
1.1
2
137
229
284
375
14 000
23 300
28 900
38 000
3 900
3 600
4 600
4 300
NNU4922
―
NNU4922K
―
1）"K" indicates bearings have tapered bore with a taper ratio of 1: 12. 2）Smallest allowable dimension for chamfer dimension r.
B-116
● Double Row Cylindrical Roller Bearings
ra
ra
ra
ra
φda φdd φDb
φDa φdc
ra
φdb
φda φDb φDb φda
Dynamic equivalent
radial load
Pr＝Fr
Static equivalent
radial load
Por＝Fr
numbers
Dimensions
type NN
cylindrical tapered1）
bore
bore
Fw
NN3005
NN3005K
NN3006
Abutment and fillet dimensions
mm
Mass (approx.)
kg
type NNU
type NN
mm
da
db
dc
dd
Da
ras
cylindrical
tapered
Ew
min
min
max
min
max
max
min
max
bore
bore
―
41.3
29
30
―
―
―
43
42
0.6
―
―
0.124 0.121
NN3006K
―
48.5
35
36.5
―
―
―
50
49
1
―
―
0.199 0.193
NN3007
NN3007K
―
55
40
41.5
―
―
―
57
56
1
―
―
0.242 0.235
NN3008
NN3008K
―
61
45
47
―
―
―
63
62
1
―
―
0.312 0.303
NN3009
NN3009K
―
67.5
50
52
―
―
―
70
69
1
―
―
0.405 0.393
NN3010
NN3010K
―
72.5
55
57
―
―
―
75
74
1
―
―
0.433 0.419
NN3011
NN3011K
―
81
61.5
63.5
―
―
―
83.5
82
1
―
―
0.651 0.631
NN3012
NN3012K
―
86.1
66.5
68.5
―
―
―
88.5
87
1
―
―
0.704 0.683
NN3013
NN3013K
―
91
71.5
73.5
―
―
―
93.5
92
1
―
―
0.758 0.735
NN3014
NN3014K
―
100
76.5
79
―
―
―
103.5 101
1
―
―
1.04
1.01
NN3015
NN3015K
―
105
81.5
84
―
―
―
108.5 106
1
―
―
1.14
1.11
NN3016
NN3016K
―
113
86.5
89.5
―
―
―
118.5 114
1
―
―
1.52
1.47
NN3017
NN3017K
―
118
91.5
94.5
―
―
―
123.5 119
1
―
―
1.61
1.56
NN3018
NN3018K
―
127
98
101
―
―
―
132
129
1.5
―
―
2.07
2.01
NN3019
NN3019K
―
132
103
106
―
―
―
137
134
1.5
―
―
2.17
2.1
NN4920
NN3020
NN4920K 113
NN3020K
―
129
137
106.5 110
108
111
111
―
115
―
133.5
―
133.5 131
142
139
1
1.83
1.5 ―
1.75
―
1.75
2.26
1.67
2.19
NN4921
NN3021
NN4921K 118
NN3021K
―
134
146
111.5 115
114
117
116
―
120
―
138.5
―
138.5 136
151
148
1
2
1.91
―
1.82
―
1.82
2.89
1.73
2.8
NN4922
NN3022
NN4922K 123
NN3022K
―
139
155
116.5 120
119
123
121
―
125
―
143.5
―
143.5 141
161
157
1
2
1.99
―
1.9
―
1.9
3.69
1.81
3.56
B-117
Db
cylindrical tapered
bore
bore
● Double Row Cylindrical Roller Bearings
B
B
r
r
r
r
φd
φd φFW
φD
φD φEw
φd
Type NNU
Cylindrical bore
φd
Type NN
Tapered bore
Cylindrical bore
Tapered bore
d 120 ∼ 280mm
Boundary dimensions
Basic load ratings
dynamic
static
dynamic
static
kN
kgf
mm
d
D
B
120
165
180
45
46
130
180
200
140
rs min2）
Limiting speeds
min-1
grease
oil
Bearing
type NNU
cylindrical
tapered1）
bore
bore
Cr
Cor
Cr
Cor
1.1
2
183
233
360
390
18 700
23 700
37 000
40 000
3 600
3 300
4 200
3 900
NNU4924
―
NNU4924K
―
50
52
1.5
2
220
284
440
475
22 400
29 000
45 000
48 500
3 300
3 100
3 900
3 600
NNU4926
―
NNU4926K
―
190
210
50
53
1.5
2
227
298
470
515
23 100
30 500
48 000
52 500
3 000
2 800
3 600
3 300
NNU4928
―
NNU4928K
―
150
210
225
60
56
2
2.1
345
335
690
585
35 000
34 000
70 500
60 000
2 800
2 600
3 300
3 100
NNU4930
―
NNU4930K
―
160
220
240
60
60
2
2.1
355
375
740
660
36 500
38 000
75 500
67 500
2 600
2 500
3 100
2 900
NNU4932
―
NNU4932K
―
170
230
260
60
67
2
2.1
360
440
765
775
37 000
45 000
78 000
79 000
2 500
2 300
2 900
2 700
NNU4934
―
NNU4934K
―
180
250
280
69
74
2
2.1
460
565
965
995
46 500
57 500
98 500
102 000
2 300
2 200
2 700
2 600
NNU4936
―
NNU4936K
―
190
260
290
69
75
2
2.1
475
580
1 030
1 040
48 500
59 000
105 000
106 000
2 200
2 000
2 600
2 400
NNU4938
―
NNU4938K
―
200
280
310
80
82
2.1
2.1
555
655
1 180
1 170
56 500
66 500
120 000
119 000
2 100
1 900
2 400
2 300
NNU4940
―
NNU4940K
―
220
300
340
80
90
2.1
3
585
815
1 300
1 480
59 500
83 000
132 000
151 000
1 900
1 700
2 200
2 100
NNU4944
―
NNU4944K
―
240
320
360
80
92
2.1
3
610
855
1 410
1 600
62 500
87 000
144 000
163 000
1 700
1 600
2 000
1 900
NNU4948
―
NNU4948K
―
260
360
400
100
104
2.1
4
900
1 060
2 070
1 990
92 000
108 000
211 000
203 000
1 600
1 500
1 800
1 700
NNU4952
―
NNU4952K
―
280
380
420
100
106
2.1
4
925
1 080
2 200
2 080
94 500
110 000
224 000
212 000
1 400
1 300
1 700
1 600
NNU4956
―
NNU4956K
―
1）"K" indicates bearings have tapered bore with a taper ratio of 1: 12. 2）Smallest allowable dimension for chamfer dimension r.
B-118
● Double Row Cylindrical Roller Bearings
ra
ra
ra
ra
ra
φda φdd φDb
φDa φdc
φdb
φda φDb φDb φda
Dynamic equivalent
radial load
Pr＝Fr
Static equivalent
radial load
Por＝Fr
numbers
Dimensions
type NN
cylindrical tapered1）
bore
bore
Abutment and fillet dimensions
mm
Fw
Ew
da
db
dc
dd
mm
Da
min
min
max
min
max
Mass (approx.)
kg
type NNU
type NN
Db
max
min
ras
cylindrical
tapered
max
bore
bore
bore
bore
cylindrical tapered
NN4924
NN3024
NN4924K 134.5 154.5 126.5 130
NN3024K
―
165
129
133
133
―
137
―
158.5
―
158.5 156.5
171
167
1
2
2.75
―
2.63
―
2.63
3.98
2.51
3.83
NN4926
NN3026
NN4926K 146
NN3026K
―
168
182
138
139
142
143
144
―
148
―
172
―
172
191
170
183
1.5
2
3.69
―
3.52
―
3.52
5.92
3.35
5.71
NN4928
NN3028
NN4928K 156
NN3028K
―
178
192
148
149
152
153
154
―
158
―
182
―
182
201
180
194
1.5
2
3.94
―
3.76
―
3.76
6.44
3.58
6.21
NN4930
NN3030
NN4930K 168.5 196.5 159
NN3030K
―
206
161
164
166
166
―
171
―
201
―
201
214
198.5
208
2
2
6.18
―
5.9
―
5.9
7.81
5.62
7.53
NN4932
NN3032
NN4932K 178.5 206.5 169
NN3032K
―
219
171
174
176
176
―
182
―
211
―
211
229
208.5
221
2
2
6.53
―
6.23
―
6.24
8.92
5.94
8.59
NN4934
NN3034
NN4934K 188.5 216.5 179
NN3034K
―
236
181
184
187
186
―
192
―
221
―
221
249
218.5
238
2
2
6.87
―
6.55
6.56 6.24
― 12.6 12.2
NN4936
NN3036
NN4936K 202
NN3036K
―
234
255
189
191
195
197
199
―
205
―
241
―
241
269
236
257
2
2
9.9
―
9.46
9.45 9.01
― 16.6 16
NN4938
NN3038
NN4938K 212
NN3038K
―
244
265
199
201
205
207
209
―
215
―
251
―
251
279
246
267
2
2
10.4
―
9.94
9.93 9.47
― 18
17.4
NN4940
NN3040
NN4940K 225
NN3040K
―
261
282
211
211
218
218
222
―
228
―
269
―
269
299
264
285
2
2
14.7
―
14
―
14
21.6
13.3
20.8
NN4944
NN3044
NN4944K 245
NN3044K
―
281
310
231
233
238
240
242
―
248
―
289
―
289
327
284
313
2
2.5
15.9
―
15.2
―
15.2
29.3
14.5
28.2
NN4948
NN3048
NN4948K 265
NN3048K
―
301
330
251
253
258
261
262
―
269
―
309
―
309
347
304
333
2
2.5
17.2
―
16.4
―
16.4
32.8
15.6
31.6
NN4952
NN3052
NN4952K 292
NN3052K
―
336
364
271
276
279
285
288
―
296
―
349
―
349
384
339
367
2
3
29.6
―
28.3
―
28.3
47.4
27
45.8
NN4956
NN3056
NN4956K 312
NN3056K
―
356
384
291
296
299
305
308
―
316
―
369
―
369
404
359
387
2
3
31.6
―
30.2
―
30.2
51.1
28.8
49.3
B-119
● Double Row Cylindrical Roller Bearings
B
B
r
r
r
r
φd
φd φFW
φD
φD φEw
φd
Type NNU
Cylindrical bore
φd
Type NN
Tapered bore
Cylindrical bore
Tapered bore
d 300 ∼ 500mm
Boundary dimensions
Basic load ratings
dynamic
static
dynamic
static
kN
kgf
mm
rs min2）
d
D
B
300
420
460
118
118
3
4
320
440
480
118
121
340
460
520
360
Cr
Limiting speeds
min-1
grease
oil
Bearing
type NNU
cylindrical
tapered1）
bore
bore
Cor
Cr
Cor
1 200
1 330
2 800
2 560
122 000
135 000
285 000
261 000
1 300
1 200
1 500
1 500
NNU4960
―
NNU4960K
―
3
4
1 240
1 350
2 970
2 670
126 000
138 000
305 000
272 000
1 200
1 100
1 400
1 300
NNU4964
―
NNU4964K
―
118
133
3
5
1 270
1 620
3 150
3 200
130 000
165 000
320 000
325 000
1 100
1 100
1 300
1 300
NNU4968
―
NNU4968K
―
480
540
118
134
3
5
1 270
1 650
3 250
3 300
130 000
169 000
330 000
340 000
1 100
1 000
1 300
1 200
NNU4972
―
NNU4972K
―
380
520
560
140
135
4
5
1 630
1 690
4 050
3 450
167 000
172 000
415 000
355 000
1 000
940
1 200
1 100
NNU4976
―
NNU4976K
―
400
540
600
140
148
4
5
1 690
2 040
4 300
4 150
172 000
208 000
435 000
420 000
940
880
1 100
1 000
NNU4980
―
NNU4980K
―
420
560
620
140
150
4
5
1 740
2 080
4 500
4 300
177 000
212 000
460 000
440 000
900
840
1 100
990
NNU4984
―
NNU4984K
―
440
600
650
160
157
4
6
2 150
2 420
5 550
5 100
219 000
247 000
565 000
520 000
850
800
1 000
940
NNU4988
―
NNU4988K
―
460
620
680
160
163
4
6
2 220
2 550
5 850
5 350
226 000
260 000
595 000
545 000
800
750
950
890
NNU4992
―
NNU4992K
―
480
650
170
5
2 280
5 900
233 000
600 000
770
910
NNU4996
NNU4996K
500
670
170
5
2 360
6 200
240 000
635 000
730
860
NNU49/500
NNU49/500K
1）"K" indicates bearings have tapered bore with a taper ratio of 1: 12. 2）Smallest allowable dimension for chamfer dimension r.
B-120
● Double Row Cylindrical Roller Bearings
ra
ra
ra
ra
ra
φda φdd φDb
φDa φdc
φdb
φda φDb φDb φda
Dynamic equivalent
radial load
Pr＝Fr
Static equivalent
radial load
Por＝Fr
numbers
Dimensions
type NN
cylindrical tapered1）
bore
bore
Abutment and fillet dimensions
mm
Mass (approx.)
kg
type NNU
type NN
da
db
dc
dd
mm
Da
cylindrical
tapered
min
max
min
max
max
min
max
bore
bore
bore
bore
Db
ras
cylindrical tapered
Fw
Ew
min
NN4960
NN3060
NN4960K 339
NN3060K
―
391
418
313
316
323
326
335
―
343
―
407
―
407
444
394
421
2.5
3
48.6
―
46.4
―
46.4
70.8
44.2
68.6
NN4964
NN3064
NN4964K 359
NN3064K
―
411
438
333
336
343
346
355
―
363
―
427
―
427
464
414
441
2.5
3
51.4
―
49.1
―
49
76.2
46.7
73.5
―
NN3068
―
379
NN3068K
―
―
473
353
360
363
371
375
―
383
―
447
―
―
500
―
477
2.5
4
54.2
―
51.7
―
―
102
―
NN3072
―
398
NN3072K
―
―
493
373
380
383
391
394
―
402
―
467
―
―
520
―
497
2.5
4
57
―
54.4
―
―
107
―
103
―
NN3076
―
425
NN3076K
―
―
512
396
400
408
411
420
―
430
―
504
―
―
540
―
516
3
4
84.5
―
80.6
―
―
113
―
109
―
NN3080
―
445
NN3080K
―
―
547
416
420
428
432
440
―
450
―
524
―
―
580
―
551
3
4
88.2
―
84.1
―
―
146
―
141
―
NN3084
―
465
NN3084K
―
―
567
436
440
448
452
460
―
470
―
544
―
―
600
―
571
3
4
92
―
87.7
―
―
154
―
148
―
NN3088
―
492
NN3088K
―
―
596
456
464
469
477
487
―
497
―
584
―
―
626
―
601
3
5
127
―
121
―
―
178
―
172
―
NN3092
―
512
NN3092K
―
―
622
476
484
489
498
507
―
517
―
604
―
―
656
―
627
3
5
132
―
126
―
―
202
―
195
―
98.5
―
―
534
―
500
514
531
541
630
―
―
4
156
149
―
―
―
―
556
―
520
534
551
561
650
―
―
4
162
155
―
―
B-121
● Four-Row Cylindrical Roller Bearings
C1
r1
r
B1
φD
φd φFW
Drawing 1
d 120 ∼ 200mm
Boundary dimensions
Basic load ratings
static
dynamic
dynamic
mm
kN
rs min1）
r1s min1）
92
105
2.5
2.5
104
104
210
116
145
210
225
d
D
B1
120
180
180
92
105
130
200
140
C1
static
kgf
Cr
Cor
Cr
Cor
2.5
2.5
400
445
785
855
40 500
45 500
80 000
87 000
2.5
2.5
490
955
49 500
97 000
116
2.5
2.5
510
1 030
52 000
105 000
155
156
155
156
2.5
2.5
2.5
2.5
705
810
1 640
1 750
71 500
82 500
168 000
178 000
150
220
230
230
250
150
130
156
150
150
130
156
150
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
750
725
930
885
1 640
1 520
2 040
1 640
76 500
73 500
95 000
90 500
168 000
155 000
208 000
167 000
160
220
230
230
240
180
130
168
170
180
130
168
170
2.5
2.5
2.5
2
2.5
2.5
2.5
2.5
920
665
915
980
2 490
1 340
2 170
2 290
93 500
68 000
93 500
100 000
254 000
136 000
222 000
234 000
170
230
240
240
250
255
260
260
120
156
160
168
180
150
225
120
156
160
168
180
150
225
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
620
905
905
970
1 100
835
1 310
1 520
2 170
2 180
2 220
2 430
1 750
3 150
63 000
92 500
92 000
99 000
112 000
85 000
134 000
155 000
222 000
222 000
226 000
247 000
179 000
320 000
180
250
260
265
156
168
180
156
168
180
2.5
2.5
2.5
2.5
2.5
2.5
895
1 020
1 090
2 180
2 400
2 510
91 500
104 000
111 000
223 000
244 000
256 000
190
260
270
270
280
168
170
200
200
168
170
200
200
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
980
1 090
1 260
1 240
2 600
2 660
3 100
2 910
100 000
111 000
128 000
126 000
265 000
272 000
315 000
297 000
200
270
280
280
170
190
200
170
190
200
2.5
2.5
2.5
2.5
2.5
2.5
970
1 190
1 310
2 610
3 150
3 300
99 000
121 000
134 000
266 000
320 000
335 000
1）Minimal allowable dimension for chamfer dimension r or r1. 2）An oil hole and groove are provided in the center of the outer ring. The oil groove is
not provided on the side.
B-122
● Four-Row Cylindrical Roller Bearings
Bearing
numbers
Dimensions Drawing
no.
Mass
kg
Fw
(approx.)
4R2437
4R2438
137
135
1
1
8.2
9.3
4R2628
150
1
12.1
4R2823
160
1
13.9
4R2906
4R2908
166
169
1
1
18
23.4
4R3031
4R3029
4R3040
4R3039
168
174
174
177
1
1
1
1
19.4
20
24.5
29.6
4R3224
4R3226
4R3232
4R3225
177
180
179
183
1
1
1
1
20.2
16.6
23.4
27.8
4R3426
4R3429
4R3423
4R3432
4R3425
4R3433
4R3431
187
189
190
193
193
192
196
1
1
1
1
1
1
1
14.2
22.2
22.8
28.2
19.3
29.5
44
4R3625
4R3628
4R3618
200
202
204
1
1
1
23.2
29.4
34.2
4R3820
4R3818
4R3821
4R3823
212
213
212
214
1
1
1
2)
1
26.9
31.7
37.5
41.5
4R4039
4R4026
4R4037
222
223
222
1
1
1
28.5
36.7
40.5
Note: Drawing 1 represents a bearing with solid rollers and machined cage.
B-123
● Four-Row Cylindrical Roller Bearings
C1
C1
r1
r1
r
r
B1
B1
φD
φd φFW
φd φFW
φD
Drawing 1
Drawing 2
d 200 ∼ 300mm
Boundary dimensions
Basic load ratings
static
dynamic
dynamic
mm
kN
static
kgf
rs min1）
r1s min1）
192
216
2.5
3
2.5
3
1 290
1 750
3 150
3 650
132 000
179 000
320 000
375 000
192
192
2.5
2.5
1 230
3 350
126 000
340 000
220
290
300
310
310
310
310
310
320
320
192
160
192
204
215
225
265
160
210
192
160
192
204
215
225
265
160
210
2.5
2.5
2.5
2.5
2.5
2.5
2.5
3
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
3
2.5
1 190
1 000
1 390
1 420
1 530
1 480
1 630
1 190
1 550
3 350
2 590
3 400
3 750
3 750
3 950
4 500
2 550
3 650
122 000
102 000
141 000
144 000
156 000
151 000
167 000
121 000
158 000
340 000
264 000
350 000
385 000
380 000
405 000
460 000
260 000
370 000
230
330
340
206
260
206
260
2.5
3
2.5
3
1 520
2 050
3 800
5 100
155 000
209 000
385 000
520 000
240
330
340
360
220
220
220
220
220
220
3
3
2.5
3
3
2.5
1 490
1 670
1 760
4 150
4 200
4 050
152 000
170 000
179 000
420 000
425 000
415 000
250
350
220
220
3
3
1 730
4 300
176 000
440 000
260
370
380
220
280
220
280
3
3
3
3
1 760
2 420
4 450
6 250
179 000
247 000
455 000
635 000
270
380
280
280
2.5
2.5
2 580
6 850
263 000
700 000
280
390
390
420
220
275
280
220
275
280
3
2.5
4
3
2.5
4
1 780
2 290
2 430
4 650
6 250
6 150
181 000
233 000
248 000
475 000
635 000
630 000
290
410
420
240
300
240
300
3
3
3
3
2 240
2 830
5 550
7 500
228 000
288 000
565 000
765 000
300
400
420
420
420
300
240
300
300
300
240
300
300
3
3
3
3
3
3
3
3
2 480
2 020
2 720
2 900
7 500
5 450
7 600
7 850
253 000
206 000
278 000
295 000
765 000
555 000
775 000
800 000
d
D
B1
200
290
320
192
216
210
290
C1
Cr
Cor
Cr
1）Minimal allowable dimension for chamfer dimension r or r1. 2）An oil hole and groove are provided in the center of the outer ring.
3）An oil hole and groove are not provided on the outer ring spacer.
B-124
Cor
● Four-Row Cylindrical Roller Bearings
Bearing
numbers
Dimensions Drawing
no.
Mass
kg
Fw
(approx.)
4R4041
4R4028
226
231
1
1
42.5
67
4R4206
236
1
39.5
4R4413
4R4419
4R4426
4R4425
4R4420
4R4416
4R4430
4R4428
4R4429
239
245
246
247
242
245
245
245
248
1
1
1
1
1
1
1
1
1
33.8
32.8
46.9
49.8
51.5
54.9
63.5
46.5
60.5
4R4614
4R4611
258
261
1
1
58.6
82.6
4R4811
4R4806
4R4807
270
268
274
1
1
1
56.8
63.6
79.6
4R5008
278
1
66
4R5217
4R5213
292
294
1
1
76.5
109
4R5405
299.7
2
105
4R5611
4R5612
4R5605
312
312
323
1
1
1
81.3
105
139
4R5806
4R5805
320
327
1
1
103
141
E-4R6014
E-4R6017
E-4R6015
E-4R6020
328
334
334
332
1
1
1
2
104
106
125
130
2)
3)
Note: Drawing 1 represents a bearing with solid rollers and machined cage; Drawing 2 represents a bearing with hollow rollers and pin type cage.
B-125
● Four-Row Cylindrical Roller Bearings
C1
C1
r1
r1
r
r
B1
B1
φD
φd φFW
φd φFW
φD
Drawing 1
Drawing 2
d 300 ∼ 460mm
Boundary dimensions
Basic load ratings
static
dynamic
dynamic
mm
kN
static
kgf
rs min1）
r1s min1）
300
270
3
3
3
3
2 900
2 510
7 850
5 350
295 000
256 000
800 000
545 000
240
240
3
3
2 240
5 950
228 000
605 000
320
440
450
460
470
240
240
340
350
230
240
340
350
3
3
3
3
3
3
3
3
2 290
2 370
3 400
4 150
6 050
6 150
9 450
10 900
234 000
242 000
345 000
425 000
615 000
630 000
960 000
1 110 000
330
440
460
200
340
200
340
3
4
3
4
1 820
3 250
4 850
8 850
186 000
330 000
495 000
905 000
340
480
490
370
300
350
300
5
4
5
4
3 450
3 350
9 650
8 300
350 000
340 000
985 000
845 000
360
510
400
400
5
5
4 250
11 500
435 000
1 170 000
370
480
520
230
400
230
400
5
5
5
5
2 100
4 650
6 250
13 500
214 000
475 000
635 000
1 370 000
380
520
520
540
280
300
400
280
300
400
4
4
4
4
4
4
3 400
3 550
5 200
9 150
9 600
15 200
350 000
360 000
530 000
935 000
980 000
1 550 000
400
560
560
400
410
400
410
5
4
5
4
4 250
5 750
11 800
17 000
430 000
585 000
1 210 000
1 730 000
410
546
400
400
5
5
4 200
12 700
430 000
1 290 000
420
560
580
620
280
230
400
280
230
400
4
4
5
4
4
5
3 150
2 430
5 000
8 750
6 250
13 400
320 000
248 000
510 000
895 000
635 000
1 360 000
440
620
450
450
5
5
6 450
18 700
660 000
1 910 000
460
620
620
650
400
400
470
400
400
470
4
4
5
4
4
5
5 350
4 950
7 150
16 700
15 000
20 600
545 000
505 000
730 000
1 700 000
1 530 000
2 100 000
d
D
B1
300
420
460
320
270
310
430
C1
Cr
Cor
Cr
Cor
1）Minimal allowable dimension for chamfer dimension r or r1. 2）Oil inlet and oil groove are in center of the outer ring; no oil groove on the side.
3）Oil inlet in space of outer ring; no oil groove. 4）One-piece inner ring.
B-126
● Four-Row Cylindrical Roller Bearings
Bearing
numbers
Dimensions Drawing
no.
Mass
kg
Fw
(approx.)
E-4R6018
E-4R6019
332
344
2
1
136
162
E-4R6202
344.5
1
108
E-4R6414
E-4R6411
E-4R6412
E-4R6406
351
358
360
361.7
1
1
1
2
106
125
178
212
E-4R6603
E-4R6605
360
365
1
1
83.6
181
E-4R6811
E-4R6804
378
377
1
1
198
187
E-4R7203
397
1
262
E-4R7405
E-4R7404
400
409
1
1
106
273
E-4R7605
E-4R7607
E-4R7604
417
416
422
1
3)
2
3)
2
174
210
325
E-4R8007
E-4R8010
446
445
1
2
303
349
E-4R8201
444
1
256
E-4R8403
E-4R8404
E-4R8401
457
466
478
1
1
1
189
181
410
E-4R8801
487
2
437
E-4R9211
E-4R9209
E-4R9216
502
502
509
2
1
2
2)
2)
2)
3)4)
383
341
540
Note: Drawing 1 represents a bearing with solid rollers and machined cage; Drawing 2 represents a bearing with hollow rollers and pin type cage.
B-127
● Four-Row Cylindrical Roller Bearings
C1
C1
r1
r1
r
r
B1
B1
φD
φd φFW
φd φFW
φD
Drawing 1
Drawing 2
d 480 ∼ 690mm
Boundary dimensions
Basic load ratings
static
dynamic
dynamic
mm
B1
kN
d
D
C1
480
650
650
680
420
450
500
420
450
500
500
680
690
690
700
710
720
420
470
510
515
480
530
510
670
700
520
rs min1）
r1s min1）
static
kgf
Cr
Cor
Cr
Cor
5
5
9.5X20° 5
6
6
5 950
7 100
7 950
18 100
21 600
24 000
605 000
720 000
810 000
1 840 000
2 200 000
2 450 000
405
470
510
515
480
530
5
5
5
5
6
5
5
5
5
5
6
5
7 100
7 650
7 750
7 900
8 650
8 250
22 900
22 500
24 600
24 100
24 700
25 000
725 000
780 000
790 000
805 000
880 000
840 000
2 340 000
2 290 000
2 500 000
2 450 000
2 520 000
2 550 000
320
540
320
540
5
6
5
6
4 550
8 300
13 500
25 000
465 000
845 000
1 380 000
2 550 000
700
735
540
535
540
535
6
5
6
5
8 200
9 000
25 500
26 600
835 000
915 000
2 600 000
2 710 000
530
700
760
780
540
520
570
540
520
570
6
6
6
6
6
6
7 850
9 150
10 300
25 400
26 700
29 100
800 000
935 000
1 050 000
2 590 000
2 730 000
2 970 000
550
800
520
520
6
6
9 450
27 000
965 000
2 750 000
560
680
360
360
3
3
4 650
16 500
475 000
1 680 000
570
815
594
594
6
6
11 800
34 500
1 200 000
3 500 000
600
820
870
870
575
540
640
575
540
640
6
7.5
7.5
10 000
10 600
13 600
31 500
29 600
40 500
1 020 000
1 090 000
1 390 000
3 200 000
3 000 000
4 150 000
610
870
660
660
9.5
7.5
12 600
40 000
1 280 000
4 100 000
650
920
920
670
690
670
690
7.5
7.5
4
7.5
14 600
14 300
46 000
46 500
1 490 000
1 460 000
4 700 000
4 750 000
660
820
440
440
5
4
7 300
27 800
745 000
2 840 000
690
980
715
715
7.5
7.5
16 800
54 500
1 720 000
5 550 000
12X20°
7.5
7.5
1）Minimal allowable dimension for chamfer dimension r or r1. 2）Oil inlet and oil groove are in center of the outer ring; no oil groove on the side.
3）Oil inlet in space of outer ring; no oil groove.
B-128
● Four-Row Cylindrical Roller Bearings
Bearing
numbers
Dimensions Drawing
no.
Mass
kg
Fw
(approx.)
E-4R9607
E-4R9609
E-4R9604
523
525
532
2
4)
2
2
4)
369
395
640
E-4R10010
E-4R10016
E-4R10006
E-4R10011
E-4R10008
E-4R10015
550
547
552
554
556
568
2
2
2
2
2
2
3)
495
590
640
680
675
780
E-4R10201
E-4R10202
554
558
2
2
4)
335
689
E-4R10403
E-4R10402
564
574.5
2
2
658
740
E-4R10603
E-4R10601
E-4R10602
574
590
601
2
2
2
626
800
1 010
E-4R11001
622
2
965
E-4R11202
590
1
265
E-4R11402
628
2
1 040
E-4R12003
E-4R12002
E-4R12001
655
672
672
2
2
2
980
1 150
1 330
E-4R12202
680
2
E-4R13005
E-4R13003
723
723
2
2
1 500
1 550
E-4R13201
702
2
580
E-4R13802
767.5
2
1 850
2)
1 400
4）One-piece inner ring. Note: Drawing 1 represents a bearing with solid rollers and machined cage; Drawing 2 represents a bearing with hollow rollers
and pin type cage.
B-129
● Four-Row Cylindrical Roller Bearings
C1
C1
r1
r1
r
r
B1
B1
φD
φd φFW
φd φFW
φD
Drawing 1
Drawing 2
d 700 ∼ 1 200mm
Boundary dimensions
Basic load ratings
static
dynamic
dynamic
mm
kN
C1
rs min1）
620
620
15X20°
1 000
715
715
725
1 000
700
750
1 050
1 090
760
d
D
700
930
710
B1
r1s min1）
static
kgf
Cr
Cor
Cr
Cor
6
12 900
43 000
1 320 000
4 400 000
9.5
6
16 800
54 500
1 710 000
5 550 000
700
6
6
15 900
53 500
1 620 000
5 450 000
745
745
720
720
7.5
7.5
7.5
7.5
17 600
19 100
58 000
60 500
1 790 000
1 950 000
5 900 000
6 150 000
1 030
1 080
1 100
750
805
745
750
790
720
7.5
6
7.5
7.5
6
7.5
17 300
18 700
19 100
59 500
61 000
60 500
1 760 000
1 900 000
1 950 000
6 050 000
6 250 000
6 150 000
800
1 080
1 080
700
750
700
750
7.5
6
7.5
6
16 500
17 300
55 000
59 000
1 680 000
1 760 000
5 600 000
6 000 000
820
1 130
1 130
1 160
800
825
840
800
800
840
7.5
7.5
7.5
7.5
7.5
7.5
19 600
19 600
21 600
66 500
66 500
71 000
2 000 000
2 000 000
2 200 000
6 800 000
6 800 000
7 250 000
840
1 160
840
840
5
7.5
21 600
71 000
2 200 000
7 250 000
850
1 150
1 150
1 180
1 180
650
800
650
850
650
800
650
850
9.5
6
7.5
9.5
9.5
6
7.5
9.5
15 700
19 700
16 400
24 100
51 000
71 000
51 500
78 500
1 610 000
2 010 000
1 670 000
2 460 000
5 200 000
7 250 000
5 250 000
8 000 000
860
1 160
735
710
6
6
17 800
62 500
1 810 000
6 400 000
900
1 230
895
870
7.5
7.5
24 700
88 000
2 520 000
9 000 000
920
1 280
865
850
7.5
7.5
26 200
88 500
2 670 000
9 000 000
1000
1 310
1 360
880
800
880
800
9.5
7.5
9.5
7.5
23 400
25 000
88 500
85 000
2 380 000
2 550 000
9 000 000
8 650 000
1030
1 380
850
850
7.5
7.5
24 400
89 000
2 490 000
9 100 000
1200
1 590
1 050
1 050
7.5
7.5
36 000
133 000
3 650 000
13 600 000
1）Minimal allowable dimension for chamfer dimension r or r1. 2）Inner ring is divided into four. 3）The oil hole of the outer ring is provided with fitting
nozzle for oil mist.
B-130
● Four-Row Cylindrical Roller Bearings
Bearing
numbers
Dimensions Drawing
no.
Mass
kg
Fw
(approx.)
E-4R14003
763
2
E-4R14205
787.5
2
1 900
E-4R14501
796
2
1 730
E-4R15001
E-4R15002
830
845
2
3)
2
3)
2 180
2 530
E-4R15204
E-4R15207
E-4R15203
828
845
855
2
3)
2
3)
2
3)
2 000
2 550
2 560
E-4R16004
E-4R16005
870
880
2
2
1 950
2 090
E-4R16406
E-4R16405
E-4R16403
903
903
910
2
2
2
2 450
2 520
2 930
E-4R16801
920
2
2 840
E-4R17001
E-4R17003
E-4R17004
E-4R17002
941
930
945
928
2
2
2
2
1 980
2 430
2 270
2 970
E-4R17201
940
2
2 310
E-4R18001
985
2
3 250
E-4R18401
1 015
2
3 560
E-4R20001
E-4R20002
1 080
1 090
2
2
3 260
3 530
E-4R20601
1 124
2
3 800
E-4R24002
1 295
2
2)
3)
3)
2)
1 200
6 220
Note: Drawing 2 represents a bearing with hollow rollers and pin type cage.
B-131
●Tapered Roller Bearings
Single row tapered roller bearings
Double row tapered roller bearings
Four row tapered roller bearings
1. Types, design features, and characteristics
Tapered roller bearings are designed so the tapered vertex
of the raceway surfaces of the inner and outer rings and
rollers converge at one point on the centerline of the bearing.
Due to this design feature, rollers move along the center of
the raceway surfaces. The tapered rollers are guided by the
compound force of the inner and outer raceway surfaces
which keep them pressed up against the large rib on the
inner ring. A large variety of these bearings, including single,
double, and four row arrangements, are in use both in metric
and inch series.
Diagram 1.
Table 1 Tapered roller bearing types and characteristics
Type
Characteristics
(1) There are both metric and inch series, and they have been standardized as shown in the following table.
Dimension series
Metric series
Regulations
Basic
number
Inch series
¡JIS B 1512
¡ISO 355 ¡ABMA
(includes metric J-series)
Example, 30210
＊T2EE040
Inner ring no. / outer ring no.
("J" appears at the beginning of the
basic number in the case of J-series.)
＊Dimension series previously not covered by 3XX are regulated under JIS B 1512;
dimensions previously missing from 3XX will henceforth use the bearing number.
(2) In addition to level type, there are also medium contact angle and large contact angle types, and the contact
angle code C and D, respectively, is appended to the basic numbers of the latter two types.
Single row tapered
roller bearings
(3) Subunits
Tapered roller bearings can be disassembled into parts ― the inner ring, rollers, and cage (collectively
known as the "cone") ― and the outer ring (known as the "cup"). These are the bearing’s "subunits". Subunit
dimensions are standardized under ISO or ABMA standards, and unified subunits are interchangeable within
each dimensional standard. However, high precision grade bearings are generally not interchangeable, and
these subunits must be used by assembling only subunits with identical manufacturing numbers.
Aside from any cautionary notes that may appear, the single row tapered roller bearings listed in the
dimension tables have subunits standardized for both metric and inch systems (including J series). (Refer to
Diagram 2)
Subunit dimensions
2α
E
E : Outer ring (cup)
nominal small-end diameter
α : Nominal contact angle
Diagram 2.
Continued on next page
B-133
●Tapered Roller Bearings
Table 1 (continued)
Type
Characteristics
(4) These bearings are constructed to have a high capacity for radial loads,
axial loads, and combined loads. The larger the contact angle, the
greater the axial load capacity becomes. When a pure radial load is
placed on the bearings, an induced load in the axial direction is also
generated, and so these bearings are generally used in pairs arranged
face to face.
Single row tapered
roller bearings
(5) When used in pairs, proper internal clearances and preload can be set by
adjusting the distance between the two bearings' inner and outer rings.
(6) Single row tapered roller bearings are separable, so both the inner and
outer rings can be used with tight fits.
(7) Tapered roller bearings are also manufactured with flanges attached to
the outer rings. For more details, contact NTN Engineering. (Refer to
Diagram 3)
Double row tapered
roller bearings
Diagram 3.
(1) Back-to-back arrangement (using double row outer rings) and face-toface arrangement (using double row inner rings) are both available,
and they have been adjusted so that each type's internal clearance
values are fixed. Therefore, only parts with identical manufacturing
numbers can be used and they must be assembled according to their
code numbers. (Refer to Diagram 4)
(2) The axial internal clearances for double and duplex bearings are
listed in Table 8, 9 on pages A-58.
(3) Pairs of duplex single row tapered roller bearings are also
manufactured. For more details, contact NTN Engineering.
Face-to-face
Back-to-back
Diagram 4.
(1) As shown in Diagram 5, four row tapered roller bearings are
constructed of two double row inner rings and two double row outer
rings.
Four row tapered
roller bearings
(2) Life of large bearings is extended by using case hardened steel,
hollow rollers and pin-type cages.
(3) Used primarily where heavy load capacity is important, and in the
roller necks of rolling mills.
Diagram 5.
2. Standard cage type
4. Precautions when using
In general, pressed cages are used in tapered roller
bearings.
However, for large sized bearings, machined or pin type
cages are also used; and for small sized bearings, molded
resin cages are also used.
If bearing load is light during operation, or if the ratio of
axial to radial load for duplex and double row bearings
exceeds the value of e, slipping develops between the
rollers and raceway, sometimes resulting in smearing. The
mass of rollers and cages particularly tends to be large for
large tapered roller bearings. For details, please contact
NTN Engineering.
3. Allowable misalignment
Single row and
back-to-back arrangement: ………0.0005rad（1.5'）
Face-to-face arrangement: …………0.001rad （3.5'）
In situations where large displacement is necessary,
please consult NTN Engineering.
B-134
●Tapered Roller Bearings
5. ECO-Top tapered roller bearings
In recent years, there has been an increasing demand for
small and medium tapered roller bearings that contribute to
energy savings, higher output, longer life, higher speed and
more efficient assembly, particularly for automobiles. NTN
Engineering is responding to this demand by providing
bearings with special specifications based on 4Top tapered
roller bearings, which are standard bearings.
In order to contribute to the ecology movement, in addition
to enhancing existing special specifications, NTN
Engineering has developed the next-generation NTN
Engineering tapered roller bearing ECO-Top tapered roller
bearing having improved long life, low torque, anti-seizure,
easy assembly specifications. The features are as follows
(compared with NTN Engineering standard bearings):
(1) Ten times longer life using contaminated lubricant
(2) Two times longer life using clean lubricant
(3) At least 10% lower torque in practical rotation range
(4) 25% better anti-seizure performance
(5) Two times better loss-of-preload resistance
(6) Half reduced number of revolutions to stable
assembled bearing width
For details, please contact NTN Engineering.
Eco-Top tapered roller bearings
B-135
●Tapered Roller Bearings
Inch series Tapered Roller Bearings (single row) index
Series
number
Cone / cup
number
335
335
335
355
355
355
355
355
365
365
365
365
365
365
365
365
385
385
385
385
385
385
385
385
385
385
395
395
395
395
395
395
395
415
415
435
435
455
455
455
455
455
455
455
475
475
475
475
475
495
495
495
495
495
336／332
339／332
344／332
350A／354A
355／354A
358／354A
359A／354A
359S／352
365／362A
366／362A
367／362A
368／362A
368A／362
368S／362A
369A／362A
370A／362A
385／382A
385A／382A
386A／382A
387／382A
387A／382A
387A／382A
387S／382A
388A／382A
389／382A
389A／382A
390／394A
390A／394A
392／394A
395A／394A
396／394A
397／394A
399A／394A
418／414
420／414
436／432
438／432
455／453X
460／453X
462／453X
463／453X
469／453A
469／453X
469／454
477／472
480／472
482／472
483／472
484／472
495／493
495A／493
495AS／493
496／493
497／492A
Page of bearing
dimension table
B-173
B-169
B-171
B-171
B-173
B-175
B-175
B-175
B-177
B-177
B-175
B-177
B-177
B-179
B-175
B-177
B-181
B-181
B-175
B-181
B-181
B-181
B-181
B-181
B-181
B-179
B-181
B-183
B-183
B-185
B-177
B-183
B-185
B-171
B-171
B-175
B-173
B-179
B-173
B-181
B-175
B-181
B-181
B-181
B-183
B-185
B-185
B-183
B-187
B-189
B-187
B-189
B-189
B-191
Series
number
Cone / cup
number
495
525
525
525
535
535
535
555
555
555
555
555
555
555
565
565
565
565
565
575
575
575
575
575
575
575
595
595
595
595
595
595
615
615
615
635
635
635
635
635
655
655
655
655
655
655
675
675
675
675
745
745
745
745
498／493
527／522
528／522
529／522
537／532X
539／532X
543／532X
555／552A
555S／552A
557S／552A
558／552A
559／552A
560／552A
560S／552A
565／563
566／563
567／563
567A／563
568／563
575／572
575S／572
576／572
577／572
580／572
581／572
582／572
593／592A
594／592A
594A／592XE
595／592A
596／592A
598A／592A
619／612
621／612
623／612
639／632
641／632
641／633
643／632
644／632
655／653
659／653
661／653
663／652
663／653
665／653
681／672
683／672
685／672
687／672
740／742
744／742
745A／742
748S／742
B-136
Page of bearing
dimension table
B-191
B-173
B-175
B-179
B-179
B-179
B-171
B-179
B-181
B-179
B-183
B-183
B-185
B-185
B-183
B-185
B-187
B-187
B-187
B-187
B-187
B-187
B-187
B-189
B-189
B-189
B-191
B-193
B-193
B-189
B-191
B-191
B-179
B-179
B-181
B-183
B-185
B-185
B-185
B-187
B-185
B-187
B-189
B-189
B-189
B-191
B-191
B-193
B-193
B-193
B-189
B-187
B-185
B-187
Series
number
Cone / cup
number
745
745
755
755
755
755
755
775
775
795
795
835
835
835
855
895
895
935
935
935
1200
1300
1300
1700
1700
1700
1700
1900
1900
1900
2400
2500
2500
2500
2500
2500
2500
2600
2600
2600
2600
2600
2700
2700
2700
2700
2700
2700
2700
2700
2800
2800
2900
3100
749／742
749A／742
756A／752
757／752
758／752
759／752
760／752
780／772
782／772
799／792
799A／792
835／832
842／832
850／832
861／854
896／892
898／892
936／932
938／932
941／932
1280／1220
1380／1328
1380／1329
1755／1729
1775／1729
1779／1729
1780／1729
1985／1930
1985／1931
1985／1932
2474／2420
2558／2523
2578／2523
2580／2520
2580／2523
2582／2523
2585／2523
2682／2631
2687／2631
2688／2631
2689／2631
2690／2631
2776／2720
2780／2720
2785／2720
2788／2720
2789／2720
2793／2720
2793／2729
2793／2735X
2878／2820
2879／2820
2984／2924
3187／3120
Page of bearing
dimension table
B-191
B-189
B-189
B-189
B-191
B-191
B-191
B-193
B-193
B-195
B-195
B-185
B-189
B-191
B-193
B-197
B-197
B-193
B-195
B-193
B-161
B-161
B-161
B-161
B-161
B-163
B-163
B-163
B-165
B-165
B-165
B-165
B-165
B-167
B-167
B-167
B-167
B-163
B-163
B-163
B-165
B-165
B-171
B-169
B-167
B-171
B-171
B-167
B-169
B-167
B-167
B-167
B-175
B-165
●Tapered Roller Bearings
Inch series Tapered Roller Bearings (single row) index
Series
number
Cone / cup
number
Page of bearing
dimension table
3100
3100
3100
3300
3300
3300
3300
3400
3400
3400
3400
3500
3500
3500
3500
3500
3500
JS3500
3700
3700
3700
3700
3700
3700
3700
3700
3700
3700
3800
3800
3800
3900
3900
3900
3900
3900
3900
A4000
A4000
4300
4300
5300
5500
5500
5500
5700
A6000
6200
6300
6300
6400
6400
6400
6500
3188／3120
3193／3120
3196／3120
3379／3320
3382／3321
3382／3339
3386／3320
3476／3420
3478／3420
3479／3420
3490／3420
3576／3525
3578／3520
3578／3525
3579／3525
3580／3525
3586／3525
JS3549A／JS3510
3767／3720
3775／3720
3776／3720
3777／3720
3778／3720
3780／3720
3780／3726
3780／3732
3781／3720
3782／3720
3872／3820
3875／3820
3880／3820
3975／3920
3979／3920
3980／3920
3982／3920
3984／3925
3994／3920
A4050／A4138
A4059／A4138
4388／4335
4395／4335
5395／5335
5578／5535
5583／5535
5584／5535
5760／5735
A6075／A6157
6277／6220
6379／6320
6386／6320
6460／6420
6461／6420
6461A／6420
6559C／6535
B-167
B-167
B-167
B-169
B-171
B-171
B-171
B-167
B-169
B-169
B-171
B-173
B-173
B-173
B-173
B-171
B-175
B-169
B-179
B-177
B-175
B-175
B-175
B-177
B-177
B-177
B-177
B-173
B-169
B-171
B-173
B-179
B-181
B-183
B-183
B-185
B-185
B-161
B-161
B-173
B-173
B-177
B-179
B-183
B-183
B-187
B-161
B-175
B-185
B-185
B-187
B-189
B-187
B-189
Series
number
Cone / cup
number
6500
6500
02400
02400
02400
02800
02800
02800
02800
03000
05000
05000
05000
05000
07000
07000
07000
07000
07000
07000
07000
07000
07000
09000
09000
09000
09000
09000
11000
11000
11500
LM11700
LM11900
12000
12500
M12600
M12600
LM12700
13600
13600
13800
14000
14000
14000
14000
14000
14000
14000
14000
15000
15000
15000
15000
15000
6576／6535
6580／6535
02474／02420
02475／02420
02476／02420
02872／02820
02875／02820
02877／02820
02878／02820
03062／03162
05062／05185
05066／05185
05075／05185
05079／05185
07079／07196
07087／07196
07093／07196
07096／07196
07097／07196
07098／07196
07100／07196
07100／07204
07100S／07196
09062／09195
09067／09195
09067／09196
09078／09195
09081／09195
11162／11300
11162／11315
11590／11520
LM11749／LM11710
LM11949／LM11910
12175／12303
12580／12520
M12648／M12610
M12649／M12610
LM12749／LM12711
13685／13621
13687／13621
13889／13830
14116／14274
14116／14276
14117A／14276
14124／14276
14125A／14276
14130／14276
14137A／14276
14139／14276
15100／15245
15101／15243
15102／15245
15103／15245
15106／15245
B-137
Page of bearing
dimension table
B-189
B-191
B-165
B-167
B-167
B-165
B-167
B-167
B-167
B-161
B-161
B-161
B-161
B-161
B-161
B-161
B-163
B-163
B-163
B-163
B-163
B-163
B-163
B-161
B-161
B-161
B-161
B-161
B-171
B-171
B-161
B-161
B-161
B-173
B-161
B-161
B-161
B-161
B-169
B-169
B-169
B-165
B-165
B-165
B-167
B-167
B-167
B-167
B-169
B-163
B-163
B-163
B-163
B-163
Series
number
Cone / cup
number
15000
15000
15000
15000
15000
15000
15000
15000
15000
15500
15500
15500
16000
17000
17000
17000
17500
18500
18600
18600
18700
18700
19000
21000
22700
23000
24700
25500
25500
25500
25500
25500
25500
25500
25500
25500
25500
25500
25800
25800
25800
26800
26800
26800
26800
26800
26800
26800
27600
27600
27600
27600
27800
28000
15112／15245
15116／15245
15117／15245
15118／15245
15119／15245
15120／15245
15123／15245
15125／15245
15126／15245
15580／15523
15590／15520
15590／15523
16137／16284
16150／16282
17118／17244
17119／17244
17580／17520
18590／18520
18685／18620
18690／18620
18790／18720
18790／18724
19150／19281
21075／21212
22780／22720
23100／23256
24780／24720
25572／25520
25577／25520
25578／25520
25580／25520
25582／25520
25584／25520
25590／25519
25590／25520
25590／25522
25590／25526
25592／25520
25877／25820
25877／25821
25880／25821
26878／26822
26880／26822
26882／26823
26882／26824
26883／26822
26884／26822
26885／26822
27687／27620
27689／27620
27690／27620
27691／27620
27880／27820
28150／28300
Page of bearing
dimension table
B-165
B-165
B-165
B-165
B-165
B-165
B-165
B-165
B-167
B-163
B-163
B-165
B-167
B-169
B-165
B-165
B-161
B-171
B-173
B-175
B-177
B-177
B-169
B-161
B-173
B-163
B-171
B-171
B-173
B-173
B-173
B-173
B-175
B-175
B-175
B-175
B-175
B-175
B-167
B-167
B-169
B-171
B-171
B-171
B-173
B-169
B-173
B-171
B-189
B-189
B-189
B-189
B-171
B-171
●Tapered Roller Bearings
Inch series Tapered Roller Bearings (single row) index
Series
number
Cone / cup
number
Page of bearing
dimension table
28000
28000
28500
28500
28500
28600
28600
28600
28900
28900
28900
29500
29500
29500
29500
29600
29600
29600
29600
LM29700
31500
31500
31500
33000
33000
33000
33000
33800
33800
33800
33800
34000
34000
34000
34000
36600
36900
37000
37000
39500
39500
39500
39500
39500
41000
42000
42000
42000
42000
42000
42600
42600
43000
44000
28150／28315
28158／28300
28579／28521
28580／28521
28584／28521
28678／28622
28680／28622
28682／28622
28985／28921
28990／28920
28995／28920
29585／29520
29585／29521
29586／29520
29590／29520
29675／29620
29675／29630
29685／29620
29688／29620
LM29748／LM29710
31593／31520
31594／31520
31597／31520
33225／33462
33275／33462
33281／33462
33287／33462
33885／33821
33889／33821
33890／33821
33895／33822
34274／34478
34300／34478
34301／34478
34306／34478
36690／36620
36990／36920
37425／37625
37431／37625
39575／39520
39580／39520
39581／39520
39585／39520
39590／39520
41125／41286
42346／42584
42350／42584
42368／42584
42375／42584
42381／42584
42687／42620
42690／42620
43131／43312
44143／44348
B-171
B-171
B-177
B-177
B-179
B-177
B-181
B-181
B-183
B-183
B-183
B-183
B-183
B-183
B-185
B-185
B-185
B-187
B-187
B-169
B-169
B-169
B-169
B-181
B-185
B-187
B-187
B-173
B-177
B-179
B-179
B-185
B-187
B-187
B-189
B-197
B-197
B-193
B-193
B-179
B-181
B-181
B-183
B-185
B-165
B-191
B-191
B-191
B-193
B-193
B-187
B-189
B-167
B-169
Series
number
Cone / cup
number
44000
44000
L44600
L44600
L44600
45200
45200
45200
45200
45200
L45400
46000
46000
46000
46000
47400
47400
47600
47600
47600
47800
47800
48200
48200
48300
48300
LM48500
LM48500
48600
48600
49500
52000
52000
52000
52000
53000
53000
55000C
55000C
55000C
55000C
56000
59000
64000
64000
65000
65000
66000
66000
66000
66000
LM67000
67300
67300
44150／44348
44158／44348
L44640／L44610
L44643／L44610
L44649／L44610
45280／45220
45282／45220
45284／45220
45287／45220
45289／45220
L45449／L45410
46162／46368
46175／46368
46780／46720
46790／46720
47487／47420
47490／47420
47678／47620
47681／47620
47686／47620
47890／47820
47896／47820
48286／48220
48290／48220
48385／48320
48393／48320
LM48548／LM48510
LM48548A／LM48510
48684／48620
48685／48620
49585／49520
52375／52618
52387／52618
52393／52618
52400／52618
53162／53375
53177／53375
55175C／55437
55176C／55437
55187C／55437
55200C／55443
56425／56650
59200／59412
64433／64700
64450／64700
65237／65500
65390／65320
66200／66462
66225／66462
66584／66520
66589／66520
LM67048／LM67010
67388／67322
67389／67322
B-138
Page of bearing
dimension table
B-171
B-171
B-163
B-163
B-163
B-175
B-177
B-179
B-179
B-181
B-165
B-173
B-173
B-197
B-197
B-185
B-187
B-187
B-189
B-189
B-191
B-193
B-195
B-195
B-197
B-197
B-167
B-167
B-197
B-197
B-179
B-193
B-193
B-193
B-193
B-173
B-173
B-175
B-175
B-177
B-179
B-193
B-179
B-195
B-195
B-183
B-177
B-179
B-181
B-179
B-181
B-165
B-195
B-195
Series
number
Cone / cup
number
Page of bearing
dimension table
67300
67300
67700
68000
68000
L68100
L69300
71000
72000
72000C
72000C
72000C
72000C
LM72800
74000
74000
74000
78000
78000
78000C
LM78300
LM78300
M84500
M86600
M86600
M86600
M88000
HM88500
HM88500
HM88500
HM88500
HM88600
HM88600
HM88600
HM89400
HM89400
HM89400
HM89400
HM89400
HM89400
HM89400
90000
90000
95000
95000
95000
97000
99000
99000
LM102900
LM104900
LM104900
LM104900
M205100
67390／67322
67391／67322
67790／67720
68450／68712
68462／68712
L68149／L68111
JL69349／JL69310
71453／71750
72188／72487
72200C／72487
72212C／72487
72218C／72487
72225C／72487
LM72849／LM72810
74500／74850
74525／74850
74550／74850
78225／78551
78250／78551
78214C／78551
LM78349／LM78310C
LM78349A／LM78310A
M84548／M84510
M86643／M86610
M86647／M86610
M86649／M86610
M88048／M88010
JHM88540／JHM88513
HM88542／HM88510
HM88542／HM88512
HM88547／HM88510
HM88648／HM88610
HM88648／HM88611AS
HM88649／HM88610
HM89440／HM89410
HM89443／HM89410
HM89444／HM89410
HM89446／HM89410
HM89448／HM89410
HM89449／HM89410
HM89449／HM89411
J90354／J90748
90381／90744
95475／95925
95500／95905
95525／95925
97500／97900
99550／99100
99575／99100
LM102949／LM102910
JLM104948／JLM104910
LM104947A／LM104911
LM104949／LM104911
JM205149／JM205110
B-197
B-197
B-197
B-195
B-195
B-169
B-169
B-195
B-177
B-179
B-179
B-181
B-181
B-163
B-195
B-197
B-197
B-181
B-183
B-179
B-169
B-169
B-163
B-163
B-165
B-165
B-167
B-165
B-167
B-167
B-167
B-169
B-169
B-167
B-167
B-167
B-167
B-169
B-169
B-169
B-169
B-191
B-193
B-195
B-195
B-197
B-195
B-197
B-197
B-175
B-177
B-177
B-177
B-177
●Tapered Roller Bearings
Inch series Tapered Roller Bearings (single row) index
Series
number
Cone / cup
number
Page of bearing
dimension table
M207000
H211700
HM212000
HM212000
HM212000
L217800
LL217800
HM218200
HH221400
HH221400
HH221400
HH221400
HH221400
HH224300
HH224300
HH224300
HH228300
M231600
LM300800
H307700
HM318400
L319200
L327200
H414200
H414200
H414200
H415600
L432300
LM501300
LM501300
LM503300
HH506300
HH506300
LM506800
LM508700
M511900
M515600
HM516400
HM516400
HM516800
LM522500
LM522500
HM522600
HM534100
LM603000
L610500
M612900
HM617000
L630300
LL639200
LM704600
LM710900
LM714100
M714200
JM207049／JM207010
B-181
JH211749／JH211710
B-185
HM212044／HM212011 B-183
HM212046／HM212011 B-183
HM212049／HM21210
B-185
L217849／L217810
B-191
LL217849／LL217810
B-191
HM218248／HM218210 B-191
HH221430／HH221410 B-189
HH221431／HH221410 B-189
HH221440／HH221410 B-193
HH221449／HH221410 B-193
HH221449A／HH221410 B-193
HH224334／HH224310 B-193
HH224335／HH224310 B-193
HH224346／HH224310 B-195
HH228349／HH228310 B-195
M231648／M231610
B-197
LM300849／LM300811 B-171
JH307749／JH307710
B-181
JHM318448／JHM318410 B-191
L319249／L319210
B-193
L327249／L327210
B-195
H414242／H414210
B-185
H414245／H414210
B-185
H414249／H414210
B-187
JH415647／JH415610
B-187
L432349／L432310
B-197
LM501349／LM501310 B-171
LM501349／LM501314 B-171
LM503349A／LM503310 B-175
HH506348／HH506310 B-177
HH506349／HH506310 B-177
JLM506849／JLM506810 B-179
JLM508748／JLM508710 B-181
JM511946／JM511910
B-183
JM515649／JM515610
B-189
HM516442／HM516410 B-187
HM516448／HM516410 B-189
JHM516849／JHM516810 B-191
LM522546／LM522510 B-193
LM522548／LM522510 B-195
JHM522649／JHM522610 B-195
JHM534149／JHM534110 B-197
LM603049／LM603011 B-175
L610549／L610510
B-183
JM612949／JM612910
B-185
HM617049／HM617010 B-191
L630349／L630310
B-197
LL639249／L639210
B-197
JLM704649／JLM704610 B-177
JLM710949／JLM710910 B-183
JLM714149／JLM714110 B-187
JM714249／JM714210
B-187
Series
number
Cone / cup
number
H715300
H715300
H715300
H715300
M716600
M718100
M719100
M720200
L724300
M736100
M738200
HM801300
HM801300
M802000
HM803100
HM803100
M804000
M804800
M804800
M804800
HM804800
HM804800
LM806600
HM807000
HM807000
HM807000
HM807000
HM807000
HM807000
L812100
LM813000
HM813800
HM813800
HM813800
HM813800
L814700
LM814800
M822000
HM903200
HM903200
M903300
HM907600
HM911200
HM911200
HM911200
H913800
H913800
H913800
H917800
H924000
HM926700
HM926700
H715334／H715311
B-183
H715343／H715311
B-185
H715345／H715311
B-187
H715348／H715311
B-189
JM716648／JM716610
B-191
JM718149／JM718110
B-191
JM719149／JM719113
B-191
JM720249／JM720210
B-193
JL724348／JL724314
B-195
JM736149／JM736110
B-197
JM738249／JM738210
B-197
HM801346／HM801310 B-171
HM801349／HM801310 B-171
M802048／M802011
B-173
HM803145／HM803110 B-173
HM803149／HM803110 B-173
M804048／M804010
B-175
M804846／M804810
B-175
M804848／M804810
B-177
M804849／M804810
B-177
HM804840／HM804810 B-173
HM804842／HM804810 B-173
LM806649／LM806610 B-179
HM807040／HM807010 B-175
HM807044／HM807010 B-177
HM807046／HM807010 B-177
HM807048／HM807010 B-179
HM807049／HM807010 B-179
JHM807045／JHM807012 B-177
L812148／L812111
B-185
JLM813049／JLM813010 B-185
HM813840／HM813810 B-181
HM813841／HM813810 B-183
HM813842／HM813810 B-183
HM813844／HM813810 B-185
L814749／L814710
B-187
LM814849／LM814810 B-189
JM822049／JM822010
B-195
HM903245／HM903210 B-173
HM903249／HM903210 B-173
M903345／M903310
B-173
HM907643／HM907614 B-179
HM911242／HM911210 B-179
HM911245／HM911210 B-183
HM911244／JHM911211 B-183
H913840／H913810
B-181
H913842／H913810
B-183
JH913848／JH913811
B-187
H917840／H917810
B-189
H924045／H924010
B-195
HM926740／HM926710 B-195
HM926747／HM926710 B-195
B-139
Page of bearing
dimension table
●Tapered Roller Bearings
Inch series Tapered Roller Bearings (four row) index
Series
number
Cone / cup
number
Page of bearing
dimension table
Series
number
Cone / cup
number
Page of bearing
dimension table
8500
T-8576D／8520／8520D
B-219
M263300
M263349D／M263310／M263310D
B-223
46700
46791D／46720／46721D
B-217
HM265000
HM265049D／HM265010／HM265010D
B-225
48200
T-48290D／48220／48220D
B-217
HM266400
T-HM266449D／HM266410／HM266410DG2
B-225
48300
T-48393D／48320／48320D
B-217
M268700
T-M268749D／M268710／M268710DG2
B-225
48600
T-48680D／48620／48620D
B-217
M270700
M270749D／M270710／M270710DAG2
B-225
67700
67791D／67720／67721D
B-217
LM272200
LM272249D／LM272210／LM272210DG2
B-227
67800
T-67885D／67820／67820D
B-219
M274100
M274149D／M274110／M274110DG2
B-227
81000
81576D／81962／81963D
B-217
LM274400
LM274449D／LM274410／LM274410D
B-227
82600
82681D／82620／82620D
B-217
275000
EE275106D／275155／275156D
B-221
126000
EE126096D／126150／126151D
B-219
275000
EE275109D／275160／275161D
B-221
127000
EE127097D／127137／127137D
B-219
M275300
M275349D／M275310／M275310DG2
B-227
132000
EE132082D／132125／132126D
B-219
M276400
M276449D／M276410／M276410DG2
B-227
134000
EE134102D／134143／134144D
B-221
M278700
M278749D／M278710／M278710DAG2
B-227
L163100
L163149D／L163110／L163110D
B-223
LM278800
LM278849D／LM278710／LM278710D
B-229
170000
EE171000D／171450／17145D
B-219
280000
EE280700D／281200／281201D
B-217
220000
EE221027D／221575／221576D
B-221
M280000
M280049D／M280010／M280010DG2
B-229
M224700
M224749D／M224710／M224710D
B-217
L281100
L281149D／L281110／L281110DG2
B-229
M231600
T-M231649D／M231610／M231610D
B-217
M281600
M281649D／M281610／M281610DG2
B-229
M238800
M238849D／M238810／M238810D
B-217
LM281800
LM281849D／LM281810／LM281810DG2
B-229
M241500
M241538D／M241510／M241510D
B-219
M282200
M282249D／M282210／M282210DG2
B-229
M244200
T-M244249D／M244210／M244210D
B-219
M283400
M283449D／M283410／M283410DG2
B-229
LM247700
LM247748D／LM247710／LM247710DA
B-219
LM283600
LM283649D／LM283610／LM283610DG2
B-229
M249700
T-M249748D／M249710／M249710D
B-219
M284200
M284249D／M284210／M284210DG2
B-229
HM252300
HM252349D／HM252310／HM252310D
B-221
M285800
M285848D／M285810／M288510DG2
B-229
M252300
T-M252349D／M252310／M252310D
B-221
LM286200
LM286249D／LM286210／LM286210DG2
B-231
M255400
M255449D／M255410／M255410DA
B-221
LM287600
LM287649D／LM2876100／LM287610DG2
B-231
HM256800
T-HM256849D／HM256810／HM256810DG2
B-221
LM288900
LM288949D／LM288910／LM288910DG2
B-231
M257100
M257149D／M257110／M257110D
B-221
290000
EE291202D／291750／291751D
B-221
M257200
M257248D／M257210／M257210D
B-223
329000
EE329119D／329172／329173D
B-221
LM258600
LM258649D／LM258610／LM258610D
B-223
LM377400
LM377449D／LM377410／LM377410DG2
B-227
HM259000
T-HM259049D／HM259010／HM259010D
B-223
LM451300
T-LM451349D／LM451310／LM451310D
B-221
HM261000
HM261049D／HM261010／HM261010DA
B-223
526000
EE526131D／526190／52619D
B-223
M262400
M262449D／M262410／M262410D
B-223
547000
EE547341D／547480／547481DG2
B-231
HM262700
T-HM262749D／HM262710／HM262710DG2
B-223
640000
T-EE640193D／640260／640261DG2
B-227
LM263100
LM263149D／LM263110／LM263110D
B-223
649000
EE649241D／649310／649311DG2
B-229
B-140
●Tapered Roller Bearings
Inch series Tapered Roller Bearings (four row) index
Series
number
Cone / cup
number
Page of bearing
dimension table
LM654600
T-LM654644D／LM654610／LM654610D
B-221
LM654600
T-LM654648D／LM654610／LM654610D
B-221
655000
EE655271D／655345／655346DG2
B-229
LM665900
LM665949D／LM665910／LM665910D
B-225
M667900
M667947D／M667911／M667911DG2
B-225
700000
EE700090D／700167／700168D
B-219
LM742700
T-LM742749D／LM742714／LM742714D
B-219
755000
EE755281D／755360／755361DG2
B-229
M757400
M757448D／M757410／M757410D
B-221
M757400
M757449D／M757410／M757410D
B-223
LM761600
LM761648D／LM761610／LM761610D
B-223
LM761600
LM761649D／LM761610／LM761610D
B-223
LM763400
LM763449D／LM763410／LM763410D
B-223
LM765100
LM765149D／LM765110／LM765110D
B-225
LM767700
LM767745D／LM767710／LM767710D
B-225
LM767700
LM767749D／LM767710／LM767710D
B-225
LM769300
LM769349D／LM769310／LM769310D
B-225
L770800
L770849D／L770810／L770810DG2
B-227
LM772700
LM772749D／LM772710／LM772710DA
B-227
LM778500
LM778549D／LM778510／LM778510DG2
B-229
822000
EE822101D／822175／822176D
B-219
833000
EE833161D／833232／833233D
B-225
843000
EE843221D／843290／843291D
B-227
LM869400
T-LM869449D／LM869410／LM869410DG2
B-225
910000
EE911603D／912400／912401D
B-225
920000
EE921150D／921875／921876D
B-221
970000
EE971355D／972100／972103D
B-223
B-141
● Tapered Roller Bearings
Metric series
T
r1
C
r
B
φd
φD
a
d 15 ∼ 30mm
Boundary dimensions
Basic load ratings
dynamic static
dynamic
static
kN
kgf
mm
d
D
T
B
C
rs min
1）
r
1）
ls min
Limiting speeds
Bearing
numbers
min-1
Cr
Cor
Cr
Cor
grease
oil
15
42
14.25
13
11
1
1
23.2
20.8
2 370
2 120
9 900
13 000
4T-30302
17
40
40
40
47
13.25
17.25
17.25
15.25
12
16
16
14
11
14
14
12
1
1
1
1
1
1
1
1
20.5
27.3
26.2
28.9
20.3
28.3
28.2
26.3
2 090
2 790
2 670
2 940
2 070
2 880
2 870
2 680
9 900
9 900
9 900
9 000
13 000
13 000
13 000
12 000
4T-30203
4T-32203
4T-32203R2）
4T-30303
20
42
47
47
52
52
52
15
15.25
19.25
16.25
16.25
22.25
15
14
18
16
16
21
12
12
15
13
12
18
0.6
1
1
1.5
1.5
1.5
0.6
1
1
1.5
1.5
1.5
24.9
28.2
36.5
35.5
31.0
46.5
27.9
28.7
39.5
34.0
31.0
48.5
2 540
2 870
3 700
3 600
3 150
4 750
2 840
2 930
4 000
3 450
3 150
4 950
9 500
8 800
8 800
8 000
7 600
8 000
13 000
12 000
12 000
11 000
10 000
11 000
4T-32004X
4T-30204
4T-32204
4T-30304A
4T-30304CA
4T-32304
22
44
15
15
11.5
0.6
0.6
27.0
31.5
2 760
3 250
8 900
12 000
4T-320/22X
25
47
47
52
52
52
52
52
52
62
62
62
62
15
17
16.25
19.25
19.25
19.25
19.25
22
18.25
18.25
18.25
25.25
15
17
15
18
18
18
18
22
17
17
17
24
11.5
14
13
16
15
15
15
18
15
14
13
20
0.6
0.6
1
1
1
1
1
1
1.5
1.5
1.5
1.5
0.6
0.6
1
1
1
1
1
1
1.5
1.5
1.5
1.5
27.8
32.5
31.5
42.0
38.0
38.0
34.5
47.5
48.5
41.5
40.5
61.5
33.5
40.5
34.0
47.0
43.0
46.5
42.0
57.5
47.5
41.5
43.5
64.5
2 830
3 300
3 200
4 300
3 850
3 900
3 500
4 850
4 950
4 250
4 150
6 250
3 450
4 150
3 450
4 800
4 400
4 750
4 250
5 850
4 850
4 250
4 450
6 600
7 900
8 000
7 300
7 300
7 300
7 100
7 100
7 300
6 700
6 400
5 900
6 700
11 000
11 000
9 800
9 800
9 800
9 400
9 400
9 800
8 900
8 500
7 800
8 900
4T-32005X
4T-33005
4T-30205
4T-32205
4T-32205R2）
4T-32205C
4T-32205CR2）
4T-33205
4T-30305
4T-30305C
4T-30305D
4T-32305
28
52
58
16
24
16
24
12
19
1
1
1
1
33.0
58.0
40.5
69.5
3 400
5 950
4 150
7 100
7 300
6 700
9 700
8 900
4T-320/28X
4T-332/28
30
55
55
62
62
62
62
72
17
20
17.25
21.25
21.25
25
20.75
17
20
16
20
20
25
19
13
16
14
17
17
19.5
16
1
1
1
1
1
1
1.5
1
1
1
1
1
1
1.5
37.5
42.5
43.5
54.5
50.0
65.0
60.0
46.0
54.0
48.0
64.0
60.0
77.0
61.0
3 800
4 300
4 450
5 600
5 100
6 600
6 100
4 700
5 500
4 900
6 550
6 100
7 850
6 200
6 900
6 900
6 300
6 300
6 100
6 300
5 700
9 200
9 200
8 400
8 400
8 100
8 400
7 600
4T-32006X
4T-33006
4T-30206
4T-32206
4T-32206C
4T-33206
4T-30306
1）Minimal allowable dimension for chamfer dimension r or r1.
2）This bearing does not incorporate the subunit dimensions.
B-142
● Tapered Roller Bearings
Sb
Sa
Equivalent radial load
dynamic
Pr＝XFr＋YFa
Fa
Fa
Fr ≦e
Fr ＞e
X Y X
Y
1
0 0.4 Y2
static
Por＝0.5Fr＋YoFa
r 1a
ra
φDa φdb
φda φDb
When Por＜Fr use Por＝Fr
For values of e, Y2 and Yo
see the table below.
Dimensions
series to
ISO
Abutment and fillet dimensions
Load Constant
center
mm
mm
da
db
Da
min
max
max
min
Axial
load factors
Mass
kg
Db
Sa
Sb
ras
r1as
min
min
min
max
max
a
e
Y2
Yo
(approx.)
2FB
20.5
22
36.5
35
38
2
3
1
1
9.5
0.29
2.11
1.16
0.098
2DB
2DD
22.5
22.5
22.5
22.5
23
23
22
24
34.5
34.5
34.5
41.5
33
33
33
40
37
37
36.5
42
2
2
2
3
2
3
3
3.5
1
1
1
1
1
1
1
1
9.5
11.5
11
10.5
0.35
0.31
0.35
0.29
1.74
1.92
1.74
2.11
0.96
1.06
0.96
1.16
0.08
0.102
0.104
0.134
2FD
24.5
25.5
25.5
28.5
28.5
28.5
25
27
26
28
27.5
27
37.5
41.5
41.5
43.5
43.5
43.5
36
40
39
42.5
39.5
43
39
44
43
47.5
48
47
3
2
2
3
3
3
3
3
4
3
4
4
0.6
1
1
1.5
1.5
1.5
0.6
1
1
1.5
1.5
1.5
10.5
11.5
12.5
10.5
13.5
14
0.37
0.35
0.33
0.30
0.55
0.30
1.60
1.74
1.81
2.00
1.10
2.00
0.88
0.96
1.00
1.10
0.60
1.10
0.097
0.127
0.16
0.176
0.17
0.245
3CC
26.5
27
39.5
38
41
3
3.5
0.6
0.6
11
0.40
1.51
0.83
0.106
4CC
2CE
3CC
2CD
7FB
2FD
29.5
29.5
30.5
30.5
30.5
30.5
30.5
30.5
33.5
33.5
33.5
33.5
30
29
31
31
31
30
30
30
34
34
34
32
42.5
42.5
46.5
46.5
46.5
46.5
46.5
46.5
53.5
53.5
53.5
53.5
40
40
44
43
43
42
42
43
52
48
45.5
52
44
43.5
48
48
48
49
49
49
57
58
58.5
57
3
3
2
2
2
2
2
4
3
3
3
3
3.5
3
3
4
4
4
4
4
3
4
5
5
0.6
0.6
1
1
1
1
1
1
1.5
1.5
1.5
1.5
0.6
0.6
1
1
1
1
1
1
1.5
1.5
1.5
1.5
12
11
12.5
14
13.5
16
16
14
13
16
20
16
0.43
0.29
0.37
0.36
0.37
0.58
0.55
0.35
0.30
0.55
0.83
0.30
1.39
2.07
1.60
1.67
1.60
1.03
1.10
1.71
2.00
1.10
0.73
2.00
0.77
1.14
0.88
0.92
0.88
0.57
0.60
0.94
1.10
0.60
0.40
1.10
0.114
0.13
0.154
0.187
0.181
0.19
0.19
0.217
0.272
0.264
0.284
0.381
4CC
2DE
33.5
33.5
33
34
46.5
52.5
45
49
49
55
3
5
4
5
1
1
1
1
12.5
15.5
0.43
0.34
1.39
1.77
0.77
0.97
0.146
0.293
4CC
2CE
3DB
3DC
5DC
2DE
2FB
35.5
35.5
35.5
35.5
35.5
35.5
38.5
35
35.5
37
37
35
36
40
49.5
49.5
56.5
56.5
56.5
56.5
63.5
48
46.5
53
52
49
53
62
52
52
57
58
59.5
59
66
3
3
2
2.5
2
5
3
4
4
3
4
5
5.5
4.5
1
1
1
1
1
1
1.5
1
1
1
1
1
1
1.5
13.5
13
13.5
15.5
18.5
16
15
0.43
0.29
0.37
0.37
0.56
0.34
0.31
1.39
2.06
1.60
1.60
1.07
1.76
1.90
0.77
1.13
0.88
0.88
0.59
0.97
1.05
0.166
0.201
0.241
0.301
0.294
0.344
0.408
2FB
3CC
2DB
2DD
2FB
5CD
2DE
2FB
B-143
● Tapered Roller Bearings
Metric series
T
r1
C
r
B
φd
φD
a
d 30 ∼ 45mm
Boundary dimensions
Basic load ratings
dynamic static
dynamic
static
kN
kgf
mm
d
D
1）
1）
ls min
Limiting speeds
Bearing
numbers
min-1
Cr
Cor
Cr
Cor
grease
1.5
1.5
1.5
1.5
1.5
58.5
48.5
81.0
79.0
70.0
58.5
51.5
90.0
94.0
88.5
6 000
4 950
8 250
8 050
7 150
5 950
5 250
9 150
9 550
9 050
5 500
5 000
5 700
5 500
5 500
7 300
6 700
7 600
7 300
7 300
4T-30306CA
4T-30306D
4T-32306
＊ 4T-32306C
4T-32306CR2）
1
1
1.5
1
1
1.5
37.0
70.5
84.0
46.5
85.0
102
3 750
7 200
8 600
4 750
8 650
10 400
6 600
6 000
5 200
8 700
8 000
6 900
4T-320/32X
4T-332/32
4T-323/32C
11.5
14
17
15
19
19
18
22
18
17
15
25
25
0.6
1
1
1.5
1.5
1.5
1.5
1.5
2
2
2
2
2
0.6
1
1
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
27.4
41.5
50.5
55.5
72.5
68.0
62.0
87.5
75.0
66.5
63.5
101
93.0
37.5
52.5
66.5
61.5
87.0
85.5
78.5
109
77.0
68.5
70.0
115
117
2 790
4 250
5 150
5 650
7 400
6 950
6 300
8 900
7 650
6 750
6 450
10 300
9 500
3 850
5 350
6 800
6 250
8 900
8 750
8 000
11 200
7 900
7 000
7 100
11 700
12 000
6 800
6 100
6 100
5 500
5 500
5 300
5 300
5 500
5 000
4 800
4 400
5 000
4 800
9 000
8 100
8 100
7 400
7 400
7 100
7 100
7 400
6 600
6 400
5 800
6 600
6 400
32907XU
4T-32007X
4T-33007
4T-30207
4T-32207
4T-32207C
4T-32207CR2）
4T-33207
4T-30307
4T-30307C
4T-30307D
4T-32307
4T-32307C
15
19
22
26
18
23
32
32.5
23
23
23
33
33
12
14.5
18
20.5
16
19
25
28
20
19
17
27
27
0.6
1
1
1.5
1.5
1.5
1.5
2.5
2
2
2
2
2
0.6
1
1
1.5
1.5
1.5
1.5
2
1.5
1.5
1.5
1.5
1.5
32.5
50.0
59.5
79.5
61.0
79.5
103
118
91.5
83.0
77.0
122
110
48.0
65.5
82.5
103
67.0
93.5
132
144
102
87.0
85.5
150
140
3 350
5 100
6 050
8 100
6 250
8 100
10 500
12 000
9 350
8 450
7 850
12 500
11 300
4 900
6 650
8 400
10 500
6 850
9 550
13 400
14 700
10 400
8 900
8 700
15 300
14 300
5 900
5 300
5 300
5 200
4 900
4 900
4 900
4 600
4 400
4 200
3 900
4 400
4 200
7 800
7 100
7 100
6 900
6 600
6 600
6 600
6 200
5 900
5 600
5 200
5 900
5 600
32908XU
4T-32008X
4T-33008
4T-33108
4T-30208
4T-32208
4T-33208
4T-T2EE040
4T-30308
4T-30308C
4T-30308D
32308U
4T-32308C
15
12
0.6
0.6
33.5
51.5
3 450
5 250
5 300
7 000
＊ 32909XU
T
B
C
rs min
30
72
72
72
72
72
20.75
20.75
28.75
28.75
28.75
19
19
27
27
27
15
14
23
23
23
1.5
1.5
1.5
1.5
1.5
32
58
65
75
17
26
29.75
17
26
28
13
20.5
23
35
55
62
62
72
72
72
72
72
80
80
80
80
80
14
18
21
18.25
24.25
24.25
24.25
28
22.75
22.75
22.75
32.75
32.75
14
18
21
17
23
23
23
28
21
21
21
31
31
40
62
68
68
75
80
80
80
85
90
90
90
90
90
15
19
22
26
19.75
24.75
32
33
25.25
25.25
25.25
35.25
35.25
45
68
15
r
1）Minimal allowable dimension for chamfer dimension r or r1. 2）This bearing does not incorporate the subunit dimensions.
Note: When selecting bearings with bearing numbers marked with " ＊ ", please consult NTN Engineering.
B-144
oil
● Tapered Roller Bearings
Sb
Sa
Equivalent radial load
dynamic
Pr＝XFr＋YFa
Fa
Fa
Fr ≦e
Fr ＞e
X Y X
Y
1
0 0.4 Y2
static
Por＝0.5Fr＋YoFa
r 1a
ra
φDa φdb
φda φDb
When Por＜Fr use Por＝Fr
For values of e, Y2 and Yo
see the table below.
Dimensions
series to
ISO
Abutment and fillet dimensions
Load Constant
center
mm
mm
da
db
min
max
max
7FB
2FD
5FD
38.5
38.5
38.5
38.5
38.5
39.5
39
38
37
37
4CC
2DE
5FD
37.5
37.5
40.5
2BD
4CC
2CE
3DB
3DC
5DC
Mass
kg
Db
Sa
Sb
ras
r1as
min
min
min
min
max
max
a
e
Y2
Yo
63.5
63.5
63.5
63.5
63.5
57
55
59
57
57
67
68
66
68
67.5
3
3
3
2
2
5.5
6.5
5.5
5.5
5.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
17.5
23.5
18.5
23
23
0.47
0.83
0.31
0.55
0.61
1.27
0.73
1.90
1.10
0.99
0.70
0.40
1.05
0.60
0.54
0.398
0.398
0.583
0.592
0.594
38
38
39
52.5
59.5
66.5
50
55
61
55
62
71
3
5
3
4
5.5
6.5
1
1
1.5
1
1
1.5
14.5
17
23
0.45
0.35
0.55
1.32
1.73
1.10
0.73
0.95
0.60
0.181
0.395
0.659
39.5
40.5
40.5
43.5
43.5
43.5
43.5
43.5
45
45
45
45
45
40
40
40.5
44
43
42
42
42
45
44
44
43
43
50.5
56.5
56.5
63.5
63.5
63.5
63.5
63.5
71.5
71.5
71.5
71.5
71.5
48
54
52
62
61
59
59
61
70
63.5
62
66
66
52.5
59
59
67
67
68
68
68
74
75.5
76.5
74
76
2.5
4
3
3
3
3
3
5
3
3
3
3
3
2.5
4
4
3
5
6
6
6
4.5
5.5
7.5
7.5
7.5
0.6
1
1
1.5
1.5
1.5
1.5
1.5
2
2
2
2
2
0.6
1
1
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
10.5
15.5
14
15
17.5
21.5
20.5
18.5
17
20.5
26
20.5
25
0.29
0.45
0.31
0.37
0.37
0.58
0.55
0.35
0.31
0.55
0.83
0.31
0.55
2.06
1.32
1.97
1.60
1.60
1.03
1.10
1.70
1.90
1.10
0.73
1.90
1.10
1.13
0.73
1.08
0.88
0.88
0.57
0.60
0.93
1.05
0.60
0.40
1.05
0.60
0.121
0.224
0.263
0.344
0.457
0.461
0.461
0.531
0.540
0.517
0.530
0.787
0.797
7FB
2FD
5FD
44.5
45.5
45.5
48.5
48.5
48.5
48.5
52
50
50
50
50
50
45.5
46
46
47
49
48
47
48
52
50
50
50
48
57.5
62.5
62.5
66.5
71.5
71.5
71.5
75
81.5
80
81.5
81.5
81.5
54
60
60
65
69
68
67
70
77
72
71
73
72
58.5
65
64
71
75
75
76
80
82
85.5
86.5
82
84
3
4
2.5
4
3
3
5
5
3
3.5
3
3
3
3
4.5
4
5.5
3.5
5.5
7
5
5
6
8
8
8
0.6
1
1
1.5
1.5
1.5
1.5
2
2
2
2
2
2
0.6
1
1
1.5
1.5
1.5
1.5
2
1.5
1.5
1.5
1.5
1.5
11.5
15
15
18
16.5
19
21
22.5
19.5
23
29.5
23
27.5
0.29
0.38
0.28
0.36
0.37
0.37
0.36
0.34
0.35
0.55
0.83
0.35
0.55
2.07
1.58
2.12
1.69
1.60
1.60
1.68
1.74
1.74
1.10
0.73
1.74
1.10
1.14
0.87
1.17
0.93
0.88
0.88
0.92
0.96
0.96
0.60
0.40
0.96
0.60
0.161
0.273
0.312
0.494
0.435
0.558
0.728
0.907
0.769
0.728
0.738
1.08
1.1
2BC
50
50
63.5
59.5
64.5
3
3
0.6
0.6
12
0.32
1.88
1.04
0.188
2DE
2FB
7FB
2FE
5FE
2BC
3CD
2BE
2CE
3DB
3DC
2DE
2EE
2FB
Da
Axial
load factors
B-145
(approx.)
● Tapered Roller Bearings
Metric series
T
r1
C
r
B
φd
φD
a
d 45 ∼ 60mm
Boundary dimensions
Basic load ratings
dynamic static
dynamic
static
kN
kgf
mm
d
D
rs min
1）
r
1）
ls min
Limiting speeds
Bearing
numbers
min-1
Cor
grease
5 850
6 750
8 650
6 900
8 350
10 900
11 300
9 800
15 700
7 800
9 550
11 700
8 000
10 200
14 400
12 800
11 100
19 500
4 800
4 800
4 700
4 400
4 400
4 400
4 000
3 500
4 000
6 400
6 400
6 200
5 900
5 900
5 900
5 300
4 600
5 300
4T-32009X
4T-33009
4T-33109
4T-30209
4T-32209
4T-33209
4T-30309
4T-30309D
32309U
57.0
50.5
88.0
103
121
93.0
109
158
190
132
152
130
232
3 650
3 200
6 400
7 100
8 850
7 850
8 900
11 700
15 400
10 900
13 500
11 600
18 700
5 800
5 150
9 000
10 500
12 400
9 450
11 100
16 100
19 400
13 500
15 500
13 300
23 600
4 700
4 700
4 400
4 400
4 200
4 000
4 000
4 000
3 800
3 400
3 600
3 200
3 600
6 300
6 300
5 800
5 800
5 600
5 300
5 300
5 300
5 100
4 500
4 800
4 200
4 800
＊ 32910XU
329102）
4T-32010X
4T-33010
4T-33110
4T-30210
4T-32210
4T-33210
4T-T2ED050
4T-T7FC050
4T-30310
4T-30310D
32310U
44.5
80.5
91.5
111
93.0
108
138
155
132
215
73.5
118
138
155
111
134
188
179
154
275
4 550
8 200
9 350
11 300
9 500
11 000
14 100
15 800
13 500
21 900
7 500
12 000
14 100
15 800
11 300
13 700
19 100
18 300
15 700
28 000
4 300
4 000
4 000
3 900
3 600
3 600
3 600
3 300
2 900
3 300
5 700
5 400
5 400
5 200
4 900
4 900
4 900
4 400
3 800
4 400
32911XU
4T-32011X
4T-33011
4T-33111
4T-30211
4T-32211
4T-33211
4T-30311
4T-30311D
32311U
51.0
82.0
93.5
113
83.0
123
145
164
5 200
8 350
9 550
11 600
8 450
12 500
14 700
16 700
4 000
3 700
3 700
3 600
5 300
4 900
4 900
4 700
32912XA2）
4T-32012X
4T-33012
4T-33112
T
B
C
Cr
Cor
45
75
75
80
85
85
85
100
100
100
20
24
26
20.75
24.75
32
27.25
27.25
38.25
20
24
26
19
23
32
25
25
36
15.5
19
20.5
16
19
25
22
18
30
1
1
1.5
1.5
1.5
1.5
2
2
2
1
1
1.5
1.5
1.5
1.5
1.5
1.5
1.5
57.5
66.0
84.5
67.5
82.0
107
111
96.0
154
76.5
93.5
115
78.5
100
141
126
109
191
50
72
72
80
80
85
90
90
90
100
105
110
110
110
15
15
20
24
26
21.75
24.75
32
36
32
29.25
29.25
42.25
15
14
20
24
26
20
23
32
35
29
27
27
40
12
12
15.5
19
20
17
19
24.5
30
22
23
19
33
0.6
0.6
1
1
1.5
1.5
1.5
1.5
2.5
3
2.5
2.5
2.5
0.6
0.6
1
1
1.5
1.5
1.5
1.5
2.5
3
2
2
2
35.5
31.5
62.5
69.5
86.5
77.0
87.5
115
151
107
133
113
184
55
80
90
90
95
100
100
100
120
120
120
17
23
27
30
22.75
26.75
35
31.5
31.5
45.5
17
23
27
30
21
25
35
29
29
43
14
17.5
21
23
18
21
27
25
21
35
1
1.5
1.5
1.5
2
2
2
2.5
2.5
2.5
1
1.5
1.5
1.5
1.5
1.5
1.5
2
2
2
60
85
95
95
100
17
23
27
30
17
23
27
30
14
17.5
21
23
1
1.5
1.5
1.5
1
1.5
1.5
1.5
1）Minimal allowable dimension for chamfer dimension r or r1.
2）This bearing does not incorporate the subunit dimensions.
B-146
Cr
oil
● Tapered Roller Bearings
Sb
Sa
Equivalent radial load
dynamic
Pr＝XFr＋YFa
Fa
Fa
Fr ≦e
Fr ＞e
X Y X
Y
1
0 0.4 Y2
static
Por＝0.5Fr＋YoFa
r 1a
ra
φDa φdb
φda φDb
When Por＜Fr use Por＝Fr
For values of e, Y2 and Yo
see the table below.
Dimensions
series to
ISO
Abutment and fillet dimensions
Load Constant
center
mm
mm
da
db
Da
min
max
max
min
67
67
69
74
73
72
86
79
82
Axial
load factors
Mass
kg
Db
Sa
Sb
ras
r1as
min
min
min
max
max
a
e
Y2
Yo
72
71
77
80
81
81
93
96
93
4
4
4
3
3
5
3
3
3
4.5
5
5.5
4.5
5.5
7
5
9
8
1
1
1.5
1.5
1.5
1.5
2
2
2
1
1
1.5
1.5
1.5
1.5
1.5
1.5
1.5
16.5
16
19.5
18
20
22
21
32.5
25.5
0.39
0.29
0.38
0.40
0.40
0.39
0.35
0.83
0.35
1.53
2.04
1.57
1.48
1.48
1.56
1.74
0.73
1.74
0.84
1.12
0.86
0.81
0.81
0.86
0.96
0.40
0.96
0.346
0.398
0.542
0.495
0.607
0.783
1.01
0.958
1.46
(approx.)
3CC
2CE
3CE
3DB
3DC
3DE
2FB
7FB
2FD
50.5
50.5
53.5
53.5
53.5
53.5
55
55
55
51
51
52
54
53
52
59
56
56
69.5
69.5
71.5
76.5
76.5
76.5
91.5
91.5
91.5
2BC
3CC
2CE
3CE
3DB
3DC
3DE
2ED
7FC
2FB
7FB
2FD
54.5
54.5
55.5
55.5
58.5
58.5
58.5
58.5
62
64
62
62
62
55
55
56
56
56
58
58
57
59
60
65
62
62
67.5
67.5
74.5
74.5
76.5
81.5
81.5
81.5
88
91
100
100
100
63.5
63.5
72
72
74
79
78
77
84
78
95
87
90
69
69.5
77
76
82
85
85
87
94
100
102
105
102
3
3
4
4
4
3
3
5
6
4
3
3
3
3
3
4.5
5
6
4.5
5.5
7.5
6
10
6
10
9
0.6
0.6
1
1
1.5
1.5
1.5
1.5
2
2.5
2
2
2
0.6
0.6
1
1
1.5
1.5
1.5
1.5
2
2.5
2
2
2
13.5
14.5
17.5
17.5
20.5
19.5
21
23.5
25.5
36.5
23
35
28.5
0.34
0.36
0.42
0.32
0.41
0.42
0.42
0.41
0.34
0.87
0.35
0.83
0.35
1.76
1.67
1.42
1.90
1.46
1.43
1.43
1.45
1.75
0.69
1.74
0.73
1.74
0.97
0.92
0.78
1.04
0.80
0.79
0.79
0.80
0.96
0.38
0.96
0.40
0.96
0.191
0.192
0.366
0.433
0.58
0.563
0.648
0.852
1.31
1.23
1.31
1.25
1.92
2BC
3CC
2CE
3CE
3DB
3DC
3DE
2FB
7FB
2FD
60.5
63.5
63.5
63.5
65
65
65
67
67
67
60.5
63
63
62
64
63
62
71
68
68
74.5
81.5
81.5
86.5
91.5
91.5
91.5
110
110
110
70.5
81
81
83
88
87
85
104
94
99
76.5
86
86
91
94
95
96
111
113
111
3
4
5
5
4
4
6
4
4
4
3
5.5
6
7
4.5
5.5
8
6.5
10.5
10.5
1
1.5
1.5
1.5
2
2
2
2
2
2
1
1.5
1.5
1.5
1.5
1.5
1.5
2
2
2
14.5
20
19.5
22
21
22.5
25.5
24.5
38
30.5
0.31
0.41
0.31
0.37
0.40
0.40
0.40
0.35
0.83
0.35
1.94
1.48
1.92
1.60
1.48
1.48
1.50
1.74
0.73
1.74
1.07
0.81
1.06
0.88
0.81
0.81
0.83
0.96
0.40
0.96
0.274
0.563
0.643
0.846
0.74
0.876
1.15
1.66
1.59
2.44
4CC
2CE
3CE
65.5
68.5
68.5
68.5
65.5
67
67
67
79.5
86.5
86.5
91.5
76.5
85
85
88
82
91
90
96
3
4
5
5
3
5.5
6
7
1
1.5
1.5
1.5
1
1.5
1.5
1.5
15.5
21
20.5
23.5
0.33
0.43
0.33
0.40
1.80
1.39
1.83
1.51
0.99
0.77
1.01
0.83
0.296
0.576
0.684
0.912
Note: When selecting bearings with bearing numbers marked with " ＊ ", please consult NTN Engineering.
B-147
● Tapered Roller Bearings
Metric series
T
r1
C
r
B
φd
φD
a
d 60 ∼ 75mm
Boundary dimensions
Basic load ratings
dynamic static
dynamic
static
kN
kgf
mm
d
D
T
B
C
rs min
1）
r
1）
ls min
Cr
Cor
Cr
Limiting speeds
Bearing
numbers
min-1
Cor
grease
oil
60
110
110
110
115
125
130
130
130
23.75
29.75
38
40
37
33.5
33.5
48.5
22
28
38
39
33.5
31
31
46
19
24
29
33
26
26
22
37
2
2
2
2.5
3
3
3
3
1.5
1.5
1.5
2.5
3
2.5
2.5
2.5
105
130
161
188
145
180
150
244
125
164
223
249
186
210
176
315
10 700
13 200
16 400
19 200
14 800
18 300
15 300
24 900
12 700
16 800
22 700
25 400
18 900
21 400
17 900
32 000
3 400
3 400
3 400
3 200
2 800
3 000
2 700
3 000
4 500
4 500
4 500
4 300
3 700
4 000
3 600
4 000
4T-30212
32212U
33212U
4T-T2EE060
4T-T7FC060
30312U
4T-30312D
32312U
65
90
100
100
110
120
120
120
140
140
140
17
23
27
34
24.75
32.75
41
36
36
51
17
23
27
34
23
31
41
33
33
48
14
17.5
21
26.5
20
27
32
28
23
39
1
1.5
1.5
1.5
2
2
2
3
3
3
1
1.5
1.5
1.5
1.5
1.5
1.5
2.5
2.5
2.5
48.5
83.0
97.5
144
123
159
195
203
173
273
85.0
128
156
211
148
206
265
238
204
350
4 900
8 450
9 950
14 700
12 500
16 200
19 900
20 700
17 700
27 800
8 700
13 000
16 000
21 500
15 000
21 000
27 100
24 300
20 900
36 000
3 700
3 400
3 400
3 300
3 100
3 100
3 100
2 800
2 500
2 800
4 900
4 600
4 600
4 400
4 200
4 200
4 200
3 700
3 300
3 700
32913XU
4T-32013X
4T-33013
4T-33113
4T-30213
32213U
33213U
30313U
4T-30313D
32313U
70
100
110
110
125
125
125
140
150
150
150
20
25
31
26.25
33.25
41
39
38
38
54
20
25
31
24
31
41
35.5
35
35
51
16
19
25.5
21
27
32
27
30
25
42
1
1.5
1.5
2
2
2
3
3
3
3
1
1.5
1.5
1.5
1.5
1.5
3
2.5
2.5
2.5
68.5
105
127
131
166
201
173
230
193
310
110
160
204
162
220
282
231
272
229
405
7 000
10 700
12 900
13 400
16 900
20 500
17 600
23 400
19 600
31 500
11 200
16 400
20 800
16 500
22 400
28 700
23 500
27 800
23 300
41 000
3 400
3 200
3 200
2 900
2 900
2 900
2 400
2 600
2 300
2 600
4 600
4 200
4 200
3 900
3 900
3 900
3 200
3 500
3 000
3 500
32914XU
4T-32014X
4T-33014
4T-30214
32214U
33214U
4T-T7FC070
30314U
4T-30314D
32314U
75
105
115
115
130
130
130
160
160
20
25
31
27.25
33.25
41
40
40
20
25
31
25
31
41
37
37
16
19
25.5
22
27
31
31
26
1
1.5
1.5
2
2
2
3
3
1
1.5
1.5
1.5
1.5
1.5
2.5
2.5
69.5
106
111
139
168
208
255
215
114
167
186
175
224
298
305
256
7 100
10 800
11 300
14 200
17 100
21 200
26 000
21 900
11 600
17 000
19 000
17 900
22 800
30 500
31 000
26 100
3 200
3 000
3 000
2 700
2 700
2 700
2 400
2 100
4 300
4 000
4 000
3 600
3 600
3 600
3 200
2 800
32915XU
32015XU
33015U
4T-30215
32215U
33215U
30315U
30315DU
1）Minimal allowable dimension for chamfer dimension r or r1.
B-148
● Tapered Roller Bearings
Sb
Sa
Equivalent radial load
dynamic
Pr＝XFr＋YFa
Fa
Fa
Fr ≦e
Fr ＞e
X Y X
Y
1
0 0.4 Y2
static
Por＝0.5Fr＋YoFa
r 1a
ra
φDa φdb
φda φDb
When Por＜Fr use Por＝Fr
For values of e, Y2 and Yo
see the table below.
Dimensions
series to
ISO
Abutment and fillet dimensions
Load Constant
center
mm
mm
da
db
min
max
Da
max
min
Axial
load factors
Mass
kg
Db
Sa
Sb
ras
r1as
min
min
min
max
max
a
e
Y2
Yo
(approx.)
3EB
3EC
3EE
2EE
7FC
2FB
7FB
2FD
70
70
70
72
74
74
74
74
70
69
69
70
72
77
73
74
101.5
101.5
101.5
103
111
118
118
118
96
95
93
98
94
112
103
107
103
104
105
109
119
120
124
120
4
4
6
6
4
4
4
4
4.5
5.5
9
7
11
7.5
11.5
11.5
2
2
2
2
2.5
2.5
2.5
2.5
1.5
1.5
1.5
2
2.5
2
2
2
22
25
27.5
28.5
42
26.5
40.5
32
0.40
0.40
0.40
0.33
0.82
0.35
0.83
0.35
1.48
1.48
1.48
1.80
0.73
1.74
0.73
1.74
0.81
0.81
0.82
0.99
0.40
0.96
0.40
0.96
0.949
1.18
1.55
1.86
2
2.06
1.97
3.02
2BC
4CC
2CE
3DE
3EB
3EC
3EE
2GB
7GB
2GD
70.5
73.5
73.5
73.5
75
75
75
79
79
79
70
72
72
73
77
75
74
83
79
80
84.5
91.5
91.5
101.5
111.5
111.5
111.5
128
128
128
80
90
89
96
106
104
102
122
111
117
86.5
97
96
106
113
115
115
130
133
130
3
4
5
6
4
4
7
4
4
4
3
5.5
6
7.5
4.5
5.5
9
8
13
12
1
1.5
1.5
1.5
2
2
2
2.5
2.5
2.5
1
1.5
1.5
1.5
1.5
1.5
1.5
2
2
2
16.5
22.5
21.5
26
23.5
27
29.5
28.5
44
34.5
0.35
0.46
0.35
0.39
0.40
0.40
0.39
0.35
0.83
0.35
1.70
1.31
1.72
1.55
1.48
1.48
1.54
1.74
0.73
1.74
0.93
0.72
0.95
0.85
0.81
0.81
0.85
0.96
0.40
0.96
0.315
0.63
0.732
1.28
1.18
1.58
1.98
2.55
2.42
3.66
2BC
4CC
2CE
3EB
3EC
3EE
7FC
2GB
7GB
2GD
75.5
78.5
78.5
80
80
80
84
84
84
84
75
78
79
81
80
79
82
89
84
86
94.5
101.5
101.5
116.5
116.5
116.5
126
138
138
138
90
98
99
110
108
107
106
130
118
125
96
105
105
118
119
120
135
140
142
140
4
5
5
4
4
7
5
4
4
4
4
6
5.5
5
6
9
12
8
13
12
1
1.5
1.5
2
2
2
2.5
2.5
2.5
2.5
1
1.5
1.5
1.5
1.5
1.5
2.5
2
2
2
18
24
22.5
25.5
28.5
31
47.5
30
47
36.5
0.32
0.43
0.28
0.42
0.42
0.41
0.87
0.35
0.83
0.35
1.90
1.38
2.11
1.43
1.43
1.47
0.69
1.74
0.73
1.74
1.05
0.76
1.16
0.79
0.79
0.81
0.38
0.96
0.40
0.96
0.487
0.848
1.07
1.26
1.68
2.1
2.61
3.06
2.92
4.46
2BC
4CC
2CE
4DB
4DC
3EE
2GB
7GB
80.5
83.5
83.5
85
85
85
89
89
80
83
85
85
85
83
95
91
99.5
106.5
106.5
121.5
121.5
121.5
148
148
94
103
101
115
114
111
139
127
101.5
110
110.5
124
125
125
149
151
4
5
6
4
4
7
4
6
4
6
5.5
5
6
10
9
14
1
1.5
1.5
2
2
2
2.5
2.5
1
1.5
1.5
1.5
1.5
1.5
2
2
19
25.5
23
27
30
32
32
50
0.33
0.46
0.30
0.44
0.44
0.43
0.35
0.83
1.80
1.31
2.01
1.38
1.38
1.40
1.74
0.73
0.99
0.72
1.11
0.76
0.76
0.77
0.96
0.40
0.511
0.909
1.11
1.41
1.74
2.2
3.57
3.47
B-149
● Tapered Roller Bearings
Metric series
T
r1
C
r
B
φd
φD
a
d 75 ∼ 95mm
Boundary dimensions
Basic load ratings
dynamic static
dynamic
static
kN
kgf
mm
d
D
T
B
C
rs min
1）
r
1）
ls min
Cr
Cor
Cr
Limiting speeds
Bearing
numbers
min-1
Cor
grease
oil
75
160
58
55
45
3
2.5
355
470
36 000
47 500
2 400
3 200
32315U
80
110
125
125
140
140
140
170
170
170
20
29
36
28.25
35.25
46
42.5
42.5
61.5
20
29
36
26
33
46
39
39
58
16
22
29.5
22
28
35
33
27
48
1
1.5
1.5
2.5
2.5
2.5
3
3
3
1
1.5
1.5
2
2
2
2.5
2.5
2.5
72.0
139
173
160
199
250
291
236
395
121
216
284
200
265
365
350
283
525
7 350
14 200
17 600
16 300
20 300
25 500
29 700
24 100
40 500
12 400
22 000
29 000
20 400
27 000
37 500
36 000
28 900
53 500
3 000
2 800
2 800
2 500
2 500
2 500
2 300
2 000
2 300
4 000
3 700
3 700
3 400
3 400
3 400
3 000
2 700
3 000
32916XU
32016XU
33016U
30216U
32216U
33216U
30316U
30316DU
32316U
85
120
130
130
150
150
150
180
180
180
23
29
36
30.5
38.5
49
44.5
44.5
63.5
23
29
36
28
36
49
41
41
60
18
22
29.5
24
30
37
34
28
49
1.5
1.5
1.5
2.5
2.5
2.5
4
4
4
1.5
1.5
1.5
2
2
2
3
3
3
94.0
142
176
183
224
284
305
247
405
157
224
296
232
300
420
365
293
525
9 600
14 400
18 000
18 600
22 900
29 000
31 000
25 200
41 000
16 100
22 900
30 000
23 600
30 500
43 000
37 000
29 900
53 500
2 800
2 600
2 600
2 400
2 400
2 400
2 100
1 900
2 100
3 800
3 500
3 500
3 200
3 200
3 200
2 900
2 500
2 900
32917XU
32017XU
33017U
30217U
32217U
33217U
30317U
30317DU
32317U
90
125
140
140
160
160
190
190
190
23
32
39
32.5
42.5
46.5
46.5
67.5
23
32
39
30
40
43
43
64
18
24
32.5
26
34
36
30
53
1.5
2
2
2.5
2.5
4
4
4
1.5
1.5
1.5
2
2
3
3
3
97.5
168
215
208
262
335
270
450
168
270
360
267
360
405
320
595
9 950
17 200
21 900
21 200
26 700
34 500
27 600
46 000
17 100
27 600
36 500
27 200
36 500
41 500
33 000
60 500
2 700
2 500
2 500
2 200
2 200
2 000
1 800
2 000
3 600
3 300
3 300
3 000
3 000
2 700
2 400
2 700
32918XU
32018XU
33018U
30218U
32218U
30318U
30318DU
32318U
95
130
145
145
170
170
200
200
200
23
32
39
34.5
45.5
49.5
49.5
49.5
23
32
39
32
43
45
45
45
18
24
32.5
27
37
38
38
32
1.5
2
2
3
3
4
3
4
1.5
1.5
1.5
2.5
2.5
3
3
3
101
171
219
226
299
365
315
296
178
280
375
290
415
445
365
355
10 300
17 500
22 400
23 000
30 500
37 500
32 500
30 000
18 200
28 600
38 000
29 600
42 500
45 500
37 500
36 500
2 500
2 300
2 300
2 100
2 100
1 900
1 900
1 700
3 400
3 100
3 100
2 800
2 800
2 500
2 500
2 200
32919XU
32019XU
33019U
30219U
32219U
30319U
303192）
30319DU
1）Minimal allowable dimension for chamfer dimension r or r1.
2）This bearing does not incorporate the subunit dimensions.
B-150
● Tapered Roller Bearings
Sb
Sa
Equivalent radial load
dynamic
Pr＝XFr＋YFa
Fa
Fa
Fr ≦e
Fr ＞e
X Y X
Y
1
0 0.4 Y2
static
Por＝0.5Fr＋YoFa
r 1a
ra
φDa φdb
φda φDb
When Por＜Fr use Por＝Fr
For values of e, Y2 and Yo
see the table below.
Dimensions
series to
ISO
Abutment and fillet dimensions
Load Constant
center
mm
mm
da
db
min
max
2GD
89
2BC
3CC
2CE
3EB
3EC
3EE
2GB
7GB
2GD
85.5
88.5
88.5
92
92
92
94
94
94
2BC
4CC
2CE
3EB
3EC
3EE
2GB
7GB
2GD
max
min
Db
Sa
Sb
ras
r1as
min
min
min
max
max
a
Mass
kg
e
Y2
Yo
(approx.)
148
133
149
4
13
2.5
2
39
0.35
1.74
0.96
5.35
85
89
89
91
90
89
102
97
98
104.5
116.5
116.5
130
130
130
158
158
158
99
112
112
124
122
119
148
134
142
106.5
120
119
132
134
135
159
159
159
4
6
6
4
4
7
4
6
4
4
7
6.5
6
7
11
9.5
15.5
13.5
1
1.5
1.5
2
2
2
2.5
2.5
2.5
1
1.5
1.5
2
2
2
2
2
2
20
27
25
27.5
31
35
34
53.5
41.5
0.35
0.42
0.28
0.42
0.42
0.43
0.35
0.83
0.35
1.71
1.42
2.16
1.43
1.43
1.41
1.74
0.73
1.74
0.94
0.78
1.19
0.79
0.79
0.78
0.96
0.40
0.96
0.54
1.28
1.6
1.72
2.18
2.92
4.41
4.11
6.41
93.5
93.5
93.5
97
97
97
103
103
103
92
94
94
97
96
95
107
103
102
111.5
121.5
121.5
140
140
140
166
166
166
111
117
118
132
130
128
156
143
150
115
125
125
141
142
144
167
169
167
4
6
6
5
5
7
5
6
5
5
7
6.5
6.5
8.5
12
10.5
16.5
14.5
1.5
1.5
1.5
2
2
2
3
3
3
1.5
1.5
1.5
2
2
2
2.5
2.5
2.5
21
28.5
26
30
33.5
37.5
35.5
56
43
0.33
0.44
0.29
0.42
0.42
0.42
0.35
0.83
0.35
1.83
1.36
2.06
1.43
1.43
1.43
1.74
0.73
1.74
1.01
0.75
1.13
0.79
0.79
0.79
0.96
0.40
0.96
0.773
1.35
1.7
2.14
2.75
3.58
5.2
4.85
7.15
2BC
3CC
2CE
3FB
3FC
2GB
7GB
2GD
98.5
100
100
102
102
108
108
108
96
100
100
103
102
113
109
108
116.5
131.5
131.5
150
150
176
176
176
112.5
125
127
140
138
165
151
157
120.5
134
135
150
152
177
179
177
4
6
7
5
5
5
6
5
5
8
6.5
6.5
8.5
10.5
16.5
14.5
1.5
2
2
2
2
3
3
3
1.5
1.5
1.5
2
2
2.5
2.5
2.5
22
30
28
32
36
37.5
59
45.5
0.34
0.42
0.27
0.42
0.42
0.35
0.83
0.35
1.75
1.42
2.23
1.43
1.43
1.74
0.73
1.74
0.96
0.78
1.23
0.79
0.79
0.96
0.40
0.96
0.817
1.79
2.18
2.66
3.49
6.03
5.66
8.57
2BC
4CC
2CE
3FB
3FC
2GB
103.5
105
105
109
109
113
113
113
101
105
104
110
108
118
118
114
121.5
136.5
136.5
158
158
186
186
186
117
130
131
149
145
172
172
154
125.5
140
139
159
161
186
186
187
4
6
7
5
5
5
5
6
5
8
6.5
7.5
8.5
11.5
11.5
17.5
1.5
2
2
2.5
2.5
3
3
3
1.5
1.5
1.5
2
2
2.5
2.5
2.5
23.5
31.5
28.5
34
39
40
40
62.5
0.36
0.44
0.28
0.42
0.42
0.35
0.35
0.83
1.68
1.36
2.16
1.43
1.43
1.74
1.73
0.73
0.92
0.75
1.19
0.79
0.79
0.96
0.95
0.40
0.851
1.83
2.27
3.07
4.3
6.98
6.58
6.47
7GB
91
Da
Axial
load factors
Note: When selecting bearings with bearing numbers marked with " ＊ ", please consult NTN Engineering.
B-151
● Tapered Roller Bearings
Metric series
T
r1
C
r
B
φd
φD
a
d 95 ∼ 120mm
Boundary dimensions
Basic load ratings
dynamic static
dynamic
static
kN
kgf
mm
d
1）
r
1）
ls min
Limiting speeds
Bearing
numbers
min-1
Cor
grease
51 500
68 500
1 900
2 500
32319U
206
162
153
281
390
335
465
500
400
435
770
12 300
9 950
10 900
17 300
22 800
26 300
33 500
41 500
35 000
36 000
58 500
21 000
16 500
15 600
28 600
39 500
34 500
47 500
51 000
40 500
44 000
78 500
2 400
2 400
1 800
2 200
2 200
2 000
2 000
1 800
1 800
1 800
1 800
3 200
3 200
2 400
3 000
3 000
2 700
2 700
2 400
2 400
2 400
2 400
＊ 32920XU
329202）
4T-T4CB100
32020XU
33020U
30220U
32220U
30320U
303202）
31320XU
32320U
126
201
245
287
380
435
365
380
610
219
335
420
380
540
530
420
470
825
12 800
20 500
25 000
29 300
38 500
44 500
37 000
39 000
62 500
22 400
34 000
43 000
38 500
55 500
54 500
43 000
47 500
84 500
2 300
2 100
2 100
1 900
1 900
1 700
1 700
1 700
1 700
3 000
2 800
2 800
2 500
2 500
2 300
2 300
2 300
2 300
32921XA2）
32021XU
33021U
30221U
32221U
＊ 30321U
303212）
＊ 31321XU
32321U
1.5
2
2
2.5
2.5
3
3
3
3
3
127
236
288
325
420
480
400
430
705
620
226
390
500
435
605
590
465
535
970
830
13 000
24 000
29 400
33 000
43 000
49 000
40 500
44 000
72 000
63 500
23 100
39 500
51 000
44 000
62 000
60 000
47 000
54 500
98 500
84 500
2 200
2 000
2 000
1 800
1 800
1 600
1 600
1 600
1 600
1 600
2 900
2 700
2 700
2 400
2 400
2 200
2 200
2 200
2 200
2 200
32922XA2）
32022XU
33022U
30222U
32222U
＊ 30322U
303222）
31322XU
＊ 32322U
323222）
1.5
1.5
2
2.5
162
118
245
345
294
205
420
470
16 500
12 000
25 000
35 500
30 000
20 900
43 000
48 000
2 000
2 000
1 800
1 700
2 600
2 600
2 500
2 200
＊ 32924XU
329242）
32024XU
30224U
D
T
B
C
rs min
Cr
Cor
95
200
71.5
67
55
4
3
505
670
100
140
140
145
150
150
180
180
215
215
215
215
25
25
24
32
39
37
49
51.5
51.5
56.5
77.5
25
24
22.5
32
39
34
46
47
47
51
73
20
20
17.5
24
32.5
29
39
39
39
35
60
1.5
1.5
3
2
2
3
3
4
3
4
4
1.5
1.5
3
1.5
1.5
2.5
2.5
3
3
3
3
121
97.5
107
170
224
258
330
410
345
355
570
105
145
160
160
190
190
225
225
225
225
25
35
43
39
53
53.5
53.5
58
81.5
25
35
43
36
50
49
49
53
77
20
26
34
30
43
41
41
36
63
1.5
2.5
2.5
3
3
4
3
4
4
1.5
2
2
2.5
2.5
3
3
3
3
110
150
170
170
200
200
240
240
240
240
240
25
38
47
41
56
54.5
54.5
63
84.5
84.5
25
38
47
38
53
50
50
57
80
80
20
29
37
32
46
42
42
38
65
65
1.5
2.5
2.5
3
3
4
3
4
4
3
120
165
165
180
215
29
29
38
43.5
29
27
38
40
23
23
29
34
1.5
1.5
2.5
3
1）Minimal allowable dimension for chamfer dimension r or r1.
2）This bearing does not incorporate the subunit dimensions.
B-152
Cr
oil
● Tapered Roller Bearings
Sb
Sa
Equivalent radial load
dynamic
Pr＝XFr＋YFa
Fa
Fa
Fr ≦e
Fr ＞e
X Y X
Y
1
0 0.4 Y2
static
Por＝0.5Fr＋YoFa
r 1a
ra
φDa φdb
φda φDb
When Por＜Fr use Por＝Fr
For values of e, Y2 and Yo
see the table below.
Dimensions
series to
ISO
Abutment and fillet dimensions
Load Constant
center
mm
mm
da
db
min
max
Da
max
min
Db
Sa
Sb
ras
r1as
min
min
min
max
max
a
Axial
load factors
Mass
kg
e
Y2
Yo
(approx.)
2GD
113
113
186
166
186
5
16.5
3
2.5
49
0.35
1.74
0.96
10.1
2CC
108.5
108.5
114
110
110
114
114
118
118
118
118
107.5
107.5
109
109
108
116
114
127
127
121
121
131.5
131.5
131
141.5
141.5
168
168
201
201
201
201
127.5
127.5
130
134
135
157
154
184
184
168
177
135.5
135.5
140
144
143
168
171
200
200
202
200
4
4
4
6
7
5
5
5
5
7
5
5
5
6.5
8
6.5
8
10
12.5
12.5
21.5
17.5
1.5
1.5
2.5
2
2
2.5
2.5
3
3
3
3
1.5
1.5
2.5
1.5
1.5
2
2
2.5
2.5
2.5
2.5
24.5
25
30
32.5
29.5
36
41.5
41.5
42
69
53
0.33
0.35
0.47
0.46
0.29
0.42
0.42
0.35
0.35
0.83
0.35
1.82
1.73
1.27
1.31
2.09
1.43
1.43
1.74
1.73
0.73
1.74
1.00
0.95
0.70
0.72
1.15
0.79
0.79
0.96
0.95
0.40
0.96
1.14
1.08
1.15
1.91
2.37
3.78
5.12
8.56
7.72
8.67
12.7
113.5
117
117
119
119
123
123
123
123
113.5
116
116
122
119
132
132
126
128
136.5
150
150
178
178
211
211
211
211
131.5
143
145
165
161
193
193
176
185
140.5
154
153
178
180
209
209
211
209
5
6
7
6
6
6
6
7
6
5
9
9
9
10
12.5
12.5
22
18.5
1.5
2
2
2.5
2.5
3
3
3
3
1.5
2
2
2
2
2.5
2.5
2.5
2.5
25
34.5
31
38
44
43.5
43.5
71.5
55
0.34
0.44
0.28
0.42
0.42
0.35
0.35
0.83
0.35
1.76
1.35
2.12
1.43
1.43
1.74
1.73
0.73
1.74
0.97
0.74
1.17
0.79
0.79
0.96
0.95
0.40
0.96
1.20
2.42
3.00
4.39
6.25
9.79
8.93
9.68
14.5
118.5
122
122
124
124
128
128
128
128
128
117.5
122
121
129
126
141
141
135
135
135
141.5
160
160
188
188
226
226
226
226
226
137
152
152
174
170
206
206
188
198
198
145.5
163
161
188
190
222
222
224
222
222
5
7
7
6
6
6
6
7
6
6.5
5
9
10
9
10
12.5
12.5
25
19.5
19.5
1.5
2
2
2.5
2.5
3
3
3
3
3
1.5
2
2
2
2
2.5
2.5
2.5
2.5
2.5
26.5
36.5
33.5
40
47
45.5
44
76
57.5
56
0.36
0.43
0.29
0.42
0.42
0.35
0.35
0.83
0.35
0.35
1.69
1.39
2.09
1.43
1.43
1.74
1.73
0.73
1.74
1.73
0.93
0.77
1.15
0.79
0.79
0.96
0.95
0.40
0.96
0.95
1.23
3.07
3.80
5.18
7.43
11.4
10.5
11.9
18.0
16.9
128.5
128.5
132
134
128.5
130.5
131
140
156.5
156.5
170
203
150
147.5
161
187
160
159.5
173
203
6
6
7
6
6
6
9
9.5
1.5
1.5
2
2.5
1.5
1.5
2
2
29.5
31
39
44
0.35
0.37
0.46
0.44
1.72
1.60
1.31
1.38
0.95
0.88
0.72
0.76
1.77
1.63
3.25
6.23
4CB
4CC
2CE
3FB
3FC
2GB
7GB
2GD
4DC
2DE
3FB
3FC
2GB
7GB
2GD
4DC
2DE
3FB
3FC
2GB
7GB
2GD
2CC
4DC
4FB
Note: When selecting bearings with bearing numbers marked with " ＊ ", please consult NTN Engineering.
B-153
● Tapered Roller Bearings
Metric series
T
r1
C
r
B
φd
φD
a
d 120 ∼ 170mm
Boundary dimensions
Basic load ratings
dynamic
static
dynamic
static
kN
kgf
mm
d
1）
r
1）
ls min
D
T
B
C
rs min
Cr
Cor
120
215
260
260
260
260
61.5
59.5
59.5
68
90.5
58
55
55
62
86
50
46
46
42
69
3
4
3
4
4
2.5
3
3
3
3
460
560
465
515
815
680
695
550
655
1 130
130
180
180
200
230
230
280
280
32
32
45
43.75
67.75
63.75
72
32
30
45
40
64
58
66
25
26
34
34
54
49
44
2
2
2.5
4
4
5
5
1.5
2
2
3
3
4
4
194
142
320
375
530
650
600
140
190
210
250
250
250
300
300
300
32
45
45.75
45.75
71.75
67.75
67.75
77
32
45
42
42
68
62
62
70
25
34
36
36
58
53
53
47
2
2.5
4
3
4
5
4
5
1.5
2
3
3
3
4
4
4
150
210
225
270
270
320
320
320
38
48
49
77
72
72
82
38
48
45
73
65
65
75
30
36
38
60
55
55
50
2.5
3
4
4
5
4
5
160
220
240
290
290
340
340
38
51
52
84
75
75
38
51
48
80
68
68
30
38
40
67
58
58
170
230
38
38
30
Cr
Cor
Limiting speeds
Bearing
numbers
min-1
grease
oil
47 000 69 500
57 000 71 000
47 500 56 000
52 500 67 000
83 000 116 000
1 700
1 500
1 500
1 500
1 500
2 200
2 000
2 000
2 000
2 000
350
252
545
505
815
830
780
19 800
14 500
32 500
38 000
54 000
66 000
61 500
36 000
25 700
55 500
51 500
83 000
84 500
79 500
1 800
1 800
1 700
1 500
1 500
1 400
1 400
2 400 ＊ 32926XU
2 400
329262）
2 200
32026XU
2 000
30226U
2 000
32226U
1 800
30326U
1 800
31326XU
200
330
420
375
610
735
640
685
375
580
570
485
920
950
780
905
20 400
33 500
43 000
38 000
62 500
75 000
65 000
70 000
38 000
59 500
58 500
49 500
94 000
97 000
80 000
92 500
1 700
1 600
1 400
1 400
1 400
1 300
1 300
1 300
2 200
32928XU
2 100
32028XU
1 900 ＊ 30228U
1 900
302282）
1 900
32228U
1 700 ＊ 30328U
1 700
303282）
1 700
31328XU
2
2.5
3
3
4
4
4
268
370
450
700
825
680
775
490
655
605
1070
1070
875
1 030
27 300 50 000
37 500 67 000
46 000 61 500
71 500 109 000
84 000 109 000
69 500 89 000
79 000 105 000
1 600
1 400
1 300
1 300
1 200
1 200
1 200
2 100
32930XU
1 900
32030XU
1 700
30230U
1 700
32230U
1 600 ＊ 30330U
1 600
303302）
1 600
31330XU
2.5
3
4
4
5
4
2
2.5
3
3
4
4
276
435
525
890
915
755
520
790
720
1 420
1 200
975
28 200 53 000
44 500 80 500
53 500 73 500
90 500 145 000
93 500 122 000
77 000 99 500
1 500
1 400
1 200
1 200
1 100
1 100
1 900
32932XU
1 800
32032XU
1 600
30232U
1 600
32232U
1 500 ＊ 30332U
1 500
303322）
2.5
2
286
560
29 200
1 400
1 800
1）Minimal allowable dimension for chamfer dimension r or r1.
2）This bearing does not incorporate the subunit dimensions.
B-154
57 000
32224U
30324U
303242）
31324XU
32324U
32934XU
● Tapered Roller Bearings
Sb
Sa
Equivalent radial load
dynamic
Pr＝XFr＋YFa
Fa
Fa
Fr ≦e
Fr ＞e
X Y X
Y
1
0 0.4 Y2
static
Por＝0.5Fr＋YoFa
r 1a
ra
φDa φdb
φda φDb
When Por＜Fr use Por＝Fr
For values of e, Y2 and Yo
see the table below.
Dimensions
series to
ISO
4FD
2GB
Abutment and fillet dimensions
Load Constant
center
mm
mm
da
db
min
max
Da
max
min
Axial
load factors
Mass
kg
Db
Sa
Sb
ras
r1as
min
min
min
max
max
a
e
Y2
Yo
(approx.)
134
138
138
138
138
136
152
152
145
145
203
246
246
246
246
181
221
221
203
213
204
239
239
244
239
6
6
6
9
6
11.5
13.5
13.5
26
21.5
2.5
3
3
3
3
2
2.5
2.5
2.5
2.5
51.5
49
48.5
82.5
61.5
0.44
0.35
0.35
0.83
0.35
1.38
1.74
1.73
0.73
1.74
0.76
0.96
0.95
0.40
0.96
9.08
14.2
13.2
15.4
22.4
140
140
142
148
148
152
152
139
139
144
152
146
164
152
171.5
170
190
216
216
262
262
163.5
163.5
178
203
193
239
218
174
174
192
218
219
255
261
6
6
8
7
7
8
9
7
6
11
9.5
13.5
14.5
28
2
2
2
3
3
4
4
1.5
2
2
2.5
2.5
3
3
31.5
34
43.5
45.5
57
53.5
87.5
0.34
0.37
0.43
0.44
0.44
0.35
0.83
1.77
1.60
1.38
1.38
1.38
1.74
0.73
0.97
0.88
0.76
0.76
0.76
0.96
0.40
2.36
2.22
4.96
7.25
11.2
17.4
19
150
152
158
158
158
162
162
162
150
153
163
163
158
179
179
165
181.5
200
236
236
236
282
282
282
177
187
219
219
210
251
252
234
184
202
237
237
238
273
273
280
6
8
7
7
9
9
9
9
6
11
9.5
9.5
13.5
14.5
14.5
30
2
2
3
2.5
3
4
4
4
1.5
2
2.5
2.5
2.5
3
3
3
34
46
48.5
47.5
61
56.5
57
94
0.36
0.46
0.44
0.43
0.44
0.35
0.35
0.83
1.67
1.31
1.38
1.39
1.38
1.74
1.73
0.73
0.92
0.72
0.76
0.77
0.76
0.96
0.95
0.40
2.51
5.28
9.26
8.37
14.1
21.2
20.4
23
162
164
168
168
172
172
172
162
164
175
170
193
193
176
200
213
256
256
302
302
302
192
200
234
226
269
269
250
202
216
255
254
292
292
302
7
8
7
8
8
8
9
8
12
11
17
17
17
32
2
2.5
3
3
4
4
4
2
2
2.5
2.5
3
3
3
36.5
49.5
51.5
64.5
61
62.5
100.5
0.33
0.46
0.44
0.44
0.35
0.37
0.83
1.83
1.31
1.38
1.38
1.74
1.60
0.73
1.01
0.72
0.76
0.76
0.96
0.88
0.40
3.92
6.37
11.2
18.2
25.5
24.7
27.7
2DC
4EC
4GB
4GD
2GB
172
174
178
178
182
182
170.5
175
189
182
205
205
210
228
276
276
322
322
199
213
252
242
286
286
213.5
231
272
275
310
311
7
8
8
10
10
10
8
13
12
17
17
17
2
2.5
3
3
4
4
2
2
2.5
2.5
3
3
38.5
52.5
55.5
70
64
65.5
0.35
0.46
0.44
0.44
0.35
0.37
1.73
1.31
1.38
1.38
1.74
1.60
0.95
0.72
0.76
0.76
0.96
0.88
4.15
7.8
12.9
23.5
29.9
29.2
3DC
182
183
220
213
222
7
8
2
2
42.5
0.38
1.57
0.86
4.4
7GB
2GD
2CC
4EC
4FB
4FD
2GB
7GB
2CC
4DC
4FB
4FD
2GB
7GB
2DC
4EC
4GB
4GD
2GB
7GB
Note: When selecting bearings with bearing numbers marked with " ＊ ", please consult NTN Engineering.
B-155
● Tapered Roller Bearings
Metric series
T
r1
C
r
B
φd
φD
a
d 170 ∼ 300mm
Boundary dimensions
Basic load ratings
dynamic
static
dynamic
static
kN
kgf
mm
d
D
T
B
C
rs min
1）
r
1）
ls min
Cr
Cor
Cr
Cor
Limiting speeds
Bearing
numbers
min-1
grease
oil
170
260
310
310
360
360
57
57
91
80
80
57
52
86
72
72
43
43
71
62
62
3
5
5
5
4
2.5
4
4
4
4
500
610
1 000
1 010
845
895
845
1 600
1 320
1 100
51 000 91 000
62 000 86 500
102 000 163 000
103 000 135 000
86 000 113 000
1 300
1 100
1 100
1 000
1 000
1 700
32034XU
1 500
30234U
1 500
32234U
1 400 ＊ 30334U
1 400
303342）
180
250
280
320
320
45
64
57
91
45
64
52
86
34
48
43
71
2.5
3
5
5
2
2.5
4
4
350
645
630
1 030
700
1 170
890
1 690
36 000 71 500
66 000 119 000
64 000 91 000
105 000 172 000
1 300
1 200
1 100
1 100
1 700
1 600
1 400
1 400
190
260
260
290
340
340
340
45
45
64
60
97
97
45
42
64
55
92
92
34
36
48
46
75
75
2.5
2.5
3
5
5
4
2
2.5
2.5
4
4
4
355
280
655
715
1 150
1 000
710
525
1 210
1 000
1 850
1 670
36 000
28 600
67 000
73 000
117 000
102 000
72 000
53 500
124 000
102 000
189 000
171 000
1 200
1 200
1 100
1 000
1 000
1 000
1 600 ＊ 32938XU
1 600
329382）
1 500
32038XUE1
1 300
30238U
1 300 ＊ 32238U
1 300
322382）
200
280
310
360
360
360
51
70
64
104
104
51
70
58
98
98
39
53
48
82
82
3
3
5
5
4
2.5
2.5
4
4
4
485
800
785
1 320
1 150
895
1 470
1 110
2 130
1 970
49 000
81 500
80 000
134 000
118 000
91 000
149 000
113 000
217 000
201 000
1 100
1 100
950
950
950
1 500
32940XUE1
1 400
32040XUE1
1 300
30240U
1 300 ＊ 32240U
1 300
322402）
220
300
300
340
51
51
76
51
48
76
39
41
57
3
2.5
4
2.5
2.5
3
480
345
920
950
670
1 690
49 000 97 000
35 500 68 500
94 000 173 000
1 000
1 000
960
1 400 ＊ 32944XUE1
1 400
32944E12）
1 300
32044XU
240
320
360
51
76
51
76
39
57
3
4
2.5
3
490
930
1 000
1 760
50 000 102 000
95 000 179 000
940
870
1 200
1 200
32948XUE1
32048XU
260
360
400
63.5
87
63.5
87
48
65
3
5
2.5
4
705
1 200
1 430
2 270
72 000 146 000
123 000 231 000
860
800
1 100
1 100
32952XUE1
32052XU
280
380
420
63.5
87
63.5
87
48
65
3
5
2.5
4
725
1 220
1 520
2 350
74 000 155 000
125 000 240 000
790
740
1 100
980
32956XUE1
32056XU
300
420
460
57
74
4
5
3
4
1 010
1 490
2 090
2 830
103 000 213 000
152 000 289 000
720
680
970
910
32960XUE1
32060XU
76
100
76
100
1）Minimal allowable dimension for chamfer dimension r or r1.
2）This bearing does not incorporate the subunit dimensions.
B-156
32936XU
32036XUE1
30236U
32236U
● Tapered Roller Bearings
Sb
Sa
Equivalent radial load
dynamic
Pr＝XFr＋YFa
Fa
Fa
Fr ≦e
Fr ＞e
X Y X
Y
1
0 0.4 Y2
static
Por＝0.5Fr＋YoFa
r 1a
ra
φDa φdb
φda φDb
When Por＜Fr use Por＝Fr
For values of e, Y2 and Yo
see the table below.
Dimensions
series to
ISO
Abutment and fillet dimensions
Load Constant
center
mm
mm
da
db
min
max
Da
max
min
Db
Sa
Sb
ras
r1as
min
min
min
max
max
Axial
load factors
Mass
kg
a
e
Y2
Yo
(approx.)
4EC
4GB
4GD
2GB
184
192
192
192
192
187
203
201
221
215.5
248
292
292
342
342
230
266
258
303
297
249
288
293
329
327
10
8
10
10
10
14
14
20
18
18
2.5
4
4
4
4
2
3
3
3
3
56
60.5
75
68
69.5
0.44
0.44
0.44
0.35
0.37
1.35
1.38
1.38
1.74
1.60
0.74
0.76
0.76
0.96
0.88
10.5
17
28.7
35.3
34.8
4DC
3FD
4GB
4GD
192
194
202
202
193
197.5
211
204
240
268
302
302
225
243
274
267
241
269
297
305
8
10
9
10
11
16
14
20
2
2.5
4
4
2
2
3
3
54
59.5
63
77.5
0.48
0.42
0.45
0.45
1.25
1.42
1.33
1.33
0.69
0.78
0.73
0.73
6.54
14.5
17.7
30.7
4DC
202
202
204
212
212
212
204
204
209
228
216
216
250
248
278
322
322
322
235
235
257
295
282
286
251
251
279
316
323
323
8
8
10
9
11
11
11
9
16
14
22
22
2
2
2.5
4
4
4
2
2
2
3
3
3
55
48.5
62.5
64
82
87.5
0.48
0.37
0.44
0.44
0.44
0.49
1.26
1.60
1.36
1.38
1.38
1.23
0.69
0.88
0.75
0.76
0.76
0.68
6.77
6.43
15.1
20.8
36.1
33.3
3EC
4FD
4GB
3GD
214
214
222
222
222
214
221
242
230
230
268
298
342
342
342
254
273
311
298
302
271
297
336
340
344
9
11
10
11
11
12
17
16
22
22
2.5
2.5
4
4
4
2
2
3
3
3
53.5
66.5
70
85
91.5
0.39
0.43
0.44
0.41
0.49
1.52
1.39
1.38
1.48
1.23
0.84
0.77
0.76
0.81
0.68
8.88
19.3
25.4
43.6
43.6
3EC
4FD
234
234
238
234
235
243
288
288
326
271
274
300
290
290
326
10
10
12
12
10
19
2.5
2.5
3
2
2
2.5
59.5
57
72.5
0.43
0.39
0.43
1.41
1.55
1.39
0.78
0.85
0.77
10.2
9.63
25
4EC
4FD
254
258
254
261
308
346
290
318
311
346
10
12
12
19
2.5
3
2
2.5
65.5
78
0.46
0.46
1.31
1.31
0.72
0.72
10.9
26.8
3EC
4FC
274
282
279
287
348
382
325
352
347
383
11
14
15
22
2.5
4
2
3
69.5
85.5
0.41
0.43
1.48
1.38
0.81
0.76
18.8
39.4
4EC
4FC
294
302
298
305
368
402
344
370
368
402
11
14
15
22
2.5
4
2
3
75
90.5
0.43
0.46
1.39
1.31
0.76
0.72
20
41.8
3FD
4GD
318
322
324
329
406
442
379
404
405
439
13
15
19
26
3
4
2.5
3
80
98
0.39
0.43
1.52
1.38
0.84
0.76
31.4
59.6
4FD
4GB
4GD
Note: When selecting bearings with bearing numbers marked with " ＊ ", please consult NTN Engineering.
B-157
● Tapered Roller Bearings
Metric series
T
r1
C
r
B
φd
φD
a
d 320 ∼ 360mm
Boundary dimensions
Basic load ratings
dynamic
static
dynamic
static
kN
kgf
mm
d
D
T
B
C
rs min
320
440
440
480
76
76
100
76
72
100
57
63
74
4
3
5
340
460
460
76
76
76
72
57
63
360
480
76
76
57
1）
r
1）
ls min
min-1
grease
oil
Cor
3
3
4
1 010
865
1 520
2 150
1 880
2 940
103 000
88 000
155 000
219 000
192 000
300 000
670
670
630
900
900
840
＊ 32964XUE1
32964E12）
32064XU
4
3
3
3
1 040
910
2 270
1 980
106 000
93 000
232 000
201 000
630
630
840
900
＊ 32968XUE1
32968E12）
4
3
1 050
2 330
107 000
238 000
590
780
32972XUE1
B-158
Cor
Bearing
numbers
Cr
1）Minimal allowable dimension for chamfer dimension r or r1.
2）This bearing does not incorporate the subunit dimensions.
Cr
Limiting speeds
● Tapered Roller Bearings
Sb
Sa
Equivalent radial load
dynamic
Pr＝XFr＋YFa
Fa
Fa
Fr ≦e
Fr ＞e
X Y X
Y
1
0 0.4 Y2
static
Por＝0.5Fr＋YoFa
r 1a
ra
φDa φdb
φda φDb
When Por＜Fr use Por＝Fr
For values of e, Y2 and Yo
see the table below.
Dimensions
series to
ISO
3FD
Abutment and fillet dimensions
Load Constant
center
mm
mm
da
db
min
max
Da
max
min
Db
Sa
Sb
ras
r1as
min
min
min
max
max
a
85
85
104
Axial
load factors
Mass
kg
e
Y2
Yo
0.42
0.39
0.46
1.44
1.55
1.31
0.79
0.85
0.72
33.1
31.7
60.2
(approx.)
338
338
342
344
344
344.5
426
426
462
398
398
418.5
426
425
463
13
13
15
19
13
26
3
3
4
2.5
2.5
3
4FD
358
358
362
362
446
446
417
414
446
445.5
13
13
19
13
3
3
2.5
2.5
90.5
87
0.44
0.39
1.37
1.55
0.75
0.85
34.9
36.0
4FD
378
381
466
436
466
13
19
3
2.5
96.5
0.46
1.31
0.72
36.6
4GD
Note: When selecting bearings with bearing numbers marked with " ＊ ", please consult NTN Engineering.
B-159
● Tapered Roller Bearings
Inch series
T
r1
C
r
B
φd
φD
a
d 12.700∼22.225mm
Boundary dimensions
Basic load ratings
static
dynamic
dynamic
mm
d
D
T
kN
B
C
Limiting speeds
static
min-1
kgf
Cr
Cor
Cr
Cor
grease
oil
12.700
34.988
10.998
10.988
8.730
12.3
11.6
1 260
1 180
12 000
16 000
14.989
34.988
10.998
10.988
8.730
12.3
11.6
1 260
1 180
12 000
16 000
15.875
41.275
42.862
42.862
47.000
49.225
14.288
14.288
16.670
14.381
19.845
14.681
14.288
16.670
14.381
21.539
11.112
9.525
13.495
11.112
14.288
20.3
17.6
26.7
24.0
38.5
18.7
17.5
26.0
24.2
39.0
2 070
1 800
2 720
2 440
3 900
1 910
1 790
2 650
2 460
3 950
10 000
8 700
9 800
8 600
8 500
13 000
12 000
13 000
11 000
11 000
16.993
47.000
14.381
14.381
11.112
24.0
24.2
2 440
2 460
8 600
11 000
17.462
39.878
13.843
14.605
10.668
23.8
24.2
2 420
2 470
10 000
13 000
19.050
39.992
45.237
47.000
49.225
49.225
49.225
53.975
56.896
12.014
15.494
14.381
18.034
19.845
21.209
22.225
19.368
11.153
16.637
14.381
19.050
21.539
19.050
21.839
19.837
9.525
12.065
11.112
14.288
14.288
17.462
15.875
15.875
12.8
28.3
24.0
38.5
38.5
38.5
40.0
42.5
12.8
28.6
24.2
39.0
39.0
39.0
39.0
46.5
1 310
2 880
2 440
3 900
3 900
3 900
4 100
4 350
1 300
2 920
2 460
3 950
3 950
3 950
3 950
4 750
10 000
8 900
8 600
8 500
8 500
8 500
8 000
7 200
13 000
12 000
11 000
11 000
11 000
11 000
11 000
9 600
19.987
47.000
14.381
14.381
11.112
24.0
24.2
2 440
2 460
8 600
11 000
20.000
50.005
13.495
14.260
9.525
26.0
27.9
2 650
2 850
7 500
10 000
20.625
49.225
19.845
21.539
14.288
38.5
39.0
3 900
3 950
8 500
11 000
20.638
49.225
19.845
19.845
15.875
37.5
39.0
3 800
3 950
8 200
11 000
21.430
50.005
17.526
18.288
13.970
38.0
39.0
3 850
3 950
8 000
11 000
21.986
45.974
15.494
16.637
12.065
29.6
34.0
3 000
3 450
8 400
11 000
22.225
50.005
50.005
52.388
53.975
13.495
17.526
19.368
19.368
14.260
18.288
20.168
20.168
9.525
13.970
14.288
14.288
26.0
38.0
40.5
40.5
27.9
39.0
43.0
43.0
2 650
3 850
4 150
4 150
2 850
3 950
4 350
4 350
7 500
8 000
7 600
7 600
10 000
11 000
10 000
10 000
Note: 1. Chamfer dimensions on the back face of the inner and outer rings of the bearing are larger than maximum values for installation dimensions ras and r1as.
2. As for the maximum value for inner and outer ring diameters of bearings whose bearing numbers are marked with "†" (inner ring) and "††" (outer ring),
the precision class is an integer for class 4 and class 2 bearings only.
B-160
● Tapered Roller Bearings
r1a
Equivalent radial load
dynamic
Pr＝XFr＋YFa
Fa
Fa
≦e
Fr
Fr ＞e
X Y X
Y
1
0 0.4 Y2
static
Por＝0.5Fr＋YoFa
ra
φDa φdb
φda φDb
When Por＜Fr use Por＝Fr
For values of e, Y2 and Yo
see the table below.
Bearing numbers
Abutment and fillet dimensions
Load Constant
Axial
center
load factors
mm
mm
ras
r 1as
da
db
Da
Db
max
max
a
4T-A4050/A4138
18.5
17
29
32
1.3
1.3
4T-A4059†/A4138
19.5
19
29
32
0.8
4T-03062/03162
4T-11590/11520
4T-17580/17520
4T-05062/05185
4T-09062/09195
21.5
24.5
23
23.5
22
20
22.5
21
21
21.5
34
34.5
36.5
40.5
42
37.5
39.5
39
42.5
44.5
4T-05066/05185
24.5
22
40.5
4T-LM11749/LM11710
23
21.5
4T-A6075/A6157
4T-LM11949/LM11910
4T-05075/05185
4T-09067/09195
4T-09078/09195
4T-09067/09196
4T-21075/21212††
4T-1775/1729
24
28
25
25.5
25.5
25.5
31.5
27
4T-05079†/05185
Mass
kg
e
Y2
Yo
(approx.)
2.5
0.45
1.32
0.73
0.053
1.3
2.5
0.45
1.32
0.73
0.049
1.3
1.5
1.5
1.5
0.8
2
1.5
1.5
1.3
1.3
5.4
1.2
5.8
4.2
9.4
0.31
0.70
0.33
0.36
0.27
1.93
0.85
1.81
1.68
2.26
1.06
0.47
1.00
0.92
1.24
0.092
0.103
0.122
0.131
0.203
42.5
1.5
1.3
4.2
0.36
1.68
0.92
0.127
34
37
1.3
1.3
5.3
0.29
2.10
1.15
0.084
23
23.5
23.5
24
24
24
26
25
34
39.5
40.5
42
42
41.5
43
49
37
41.5
42.5
44.5
44.5
44.5
50
51
1
1.3
1.3
1.3
1.3
1.3
1.5
1.5
1.3
1.3
1.3
1.3
1.3
1.5
2.3
1.3
1.5
5.6
4.2
7.6
9.4
7.6
5.6
6.5
0.53
0.30
0.36
0.27
0.27
0.27
0.59
0.31
1.14
2.00
1.68
2.26
2.26
2.26
1.02
1.95
0.63
1.10
0.92
1.24
1.24
1.24
0.56
1.07
0.065
0.122
0.121
0.179
0.188
0.198
0.248
0.272
26.5
24
40.5
42.5
1.5
1.3
4.2
0.36
1.68
0.92
0.117
4T-07079/07196
27.5
26
44.5
47
1.5
1
3.0
0.40
1.49
0.82
0.138
4T-09081/09195
27.5
25.5
42
44.5
1.5
1.3
9.4
0.27
2.26
1.24
0.179
4T-12580/12520
28.5
26
42.5
45.5
1.5
1.5
7.1
0.32
1.86
1.02
0.182
4T-M12649/M12610
29
25.5
44
46
1.3
1.3
6.4
0.28
2.16
1.19
0.169
4T-LM12749†/LM12711††
27.5
26
40
42.5
1.3
1.3
5.4
0.31
1.96
1.08
0.123
4T-07087/07196
4T-M12648/M12610
4T-1380/1328
4T-1380/1329††
28.5
28.5
29.5
29.5
27
26.5
27
27
44.5
44
45
46
47
46
48.5
49
1.3
1.3
1.5
1.5
1
1.3
1.5
1.5
3.0
6.4
7.4
7.4
0.40
0.28
0.29
0.29
1.49
2.16
2.05
2.05
0.82
1.19
1.13
1.13
0.13
0.165
0.2
0.215
備考 3．ET 円すいころ軸受も製作しております。NTN にご照会ください。
B-161
● Tapered Roller Bearings
Inch series
T
r1
C
r
B
φd
φD
a
d 22.225∼28.575mm
Boundary dimensions
Basic load ratings
static
dynamic
dynamic
mm
d
D
T
kN
Limiting speeds
static
min-1
kgf
B
C
Cr
Cor
Cr
Cor
grease
oil
22.225
56.896
57.150
19.368
22.225
19.837
22.225
15.875
17.462
42.5
47.0
46.5
49.5
4 350
4 800
4 750
5 050
7 200
7 100
9 600
9 500
22.606
47.000
15.500
15.500
12.000
27.5
32.5
2 800
3 300
8 200
11 000
23.812
50.005
50.292
56.896
13.495
14.224
19.368
14.260
14.732
19.837
9.525
10.668
15.875
26.0
28.8
42.5
27.9
34.0
46.5
2 650
2 940
4 350
2 850
3 450
4 750
7 500
7 400
7 200
10 000
9 900
9 600
24.981
50.005
13.495
14.260
9.525
26.0
27.9
2 650
2 850
7 500
10 000
25.000
50.005
13.495
14.260
9.525
26.0
27.9
2 650
2 850
7 500
10 000
25.159
50.005
13.495
14.260
9.525
26.0
27.9
2 650
2 850
7 500
10 000
25.400
50.005
50.005
50.292
51.994
56.896
57.150
61.912
62.000
62.000
64.292
65.088
66.421
13.495
13.495
14.224
15.011
19.368
19.431
19.050
19.050
19.050
21.433
22.225
23.812
14.260
14.260
14.732
14.260
19.837
19.431
20.638
20.638
20.638
21.433
21.463
25.433
9.525
9.525
10.668
12.700
15.875
14.732
14.288
14.288
14.288
16.670
15.875
19.050
26.0
26.0
28.8
26.0
42.5
42.0
46.5
46.5
46.5
51.5
47.0
64.5
27.9
27.9
34.0
27.9
46.5
48.5
54.0
54.0
54.0
64.5
50.5
72.5
2 650
2 650
2 940
2 650
4 350
4 300
4 750
4 750
4 750
5 250
4 800
6 550
2 850
2 850
3 450
2 850
4 750
4 950
5 500
5 500
5 500
6 600
5 150
7 400
7 500
7 500
7 400
7 500
7 200
6 900
6 100
6 100
6 100
6 100
5 700
6 200
10 000
10 000
9 900
10 000
9 600
9 200
8 200
8 200
8 200
8 100
7 600
8 200
26.157
62.000
19.050
20.638
14.288
46.5
54.0
4 750
5 500
6 100
8 200
26.162
66.421
23.812
25.433
19.050
64.5
72.5
6 550
7 400
6 200
8 200
26.988
50.292
60.325
62.000
66.421
14.224
19.842
19.050
23.812
14.732
17.462
20.638
25.433
10.668
15.875
14.288
19.050
28.8
39.5
46.5
64.5
34.0
45.5
54.0
72.5
2 940
4 050
4 750
6 550
3 450
4 650
5 500
7 400
7 400
6 700
6 100
6 200
9 900
8 900
8 200
8 200
28.575
56.896
57.150
19.845
17.462
19.355
17.462
15.875
13.495
40.5
39.5
44.5
45.5
4 150
4 050
4 550
4 650
6 700
6 700
8 900
8 900
Note: 1. Chamfer dimensions on the back face of the inner and outer rings of the bearing are larger than maximum values for installation dimensions ras and r1as.
2. As for the maximum value for inner ring bore diameters of bearings whose bearing numbers are marked with "†" (inner ring), the precision class is an integer
for class 4 and class 2 bearings only.
B-162
● Tapered Roller Bearings
r1a
Equivalent radial load
dynamic
Pr＝XFr＋YFa
Fa
Fa
≦e
Fr
Fr ＞e
X Y X
Y
1
0 0.4 Y2
static
Por＝0.5Fr＋YoFa
ra
φDa φdb
φda φDb
When Por＜Fr use Por＝Fr
For values of e, Y2 and Yo
see the table below.
Bearing numbers
Abutment and fillet dimensions
Load Constant
Axial
center
load factors
mm
mm
ras
r 1as
da
db
Da
Db
max
max
a
4T-1755/1729
4T-1280/1220
29
29.5
27.5
29
49
49
51
52
1.3
0.8
1.3
1.5
4T-LM72849/LM72810
30
28
40.5
44
1.5
4T-07093/07196
4T-L44640/L44610
4T-1779/1729
30.5
30.5
29.5
28.5
28.5
28.5
44.5
44.5
49
47
47
51
4T-07098/07196
31
29
44.5
4T-07097/07196
31
29
4T-07096/07196
31.5
4T-07100/07196
4T-07100S/07196
4T-L44643/L44610
4T-07100/07204
4T-1780/1729
4T-M84548/M84510
4T-15101/15243
4T-15100/15245
4T-15102/15245
4T-M86643/M86610
4T-23100/23256
4T-2687/2631
Mass
kg
e
Y2
Yo
(approx.)
6.5
7.1
0.31
0.35
1.95
1.73
1.07
0.95
0.256
0.286
1
3.0
0.47
1.27
0.70
0.125
1.5
1.5
0.8
1
1.3
1.3
3.0
3.4
6.5
0.40
0.37
0.31
1.49
1.60
1.95
0.82
0.88
1.07
0.123
0.137
0.247
47
1.5
1
3.0
0.40
1.49
0.82
0.118
44.5
47
1.5
1
3.0
0.40
1.49
0.82
0.118
29.5
44.5
47
1.5
1
3.0
0.40
1.49
0.82
0.117
30.5
31.5
31.5
30.5
30.5
36
32.5
38
34
38
39
33.5
29.5
29.5
29.5
29.5
30
33
31.5
31.5
31.5
36.5
34.5
31.5
44.5
44.5
44.5
45
49
48.5
54
55
55
54
53
58
47
47
47
48
51
54
58
58
58
61
63
60
1
1.5
1.3
1
0.8
1.5
0.8
3.5
1.5
1.5
1.5
1.3
1
1
1.3
1.3
1.3
1.5
2
1.3
1.3
1.5
1.5
1.3
3.0
3.0
3.4
3.0
6.5
3.4
6.0
6.0
6.0
3.3
2.0
9.3
0.40
0.40
0.37
0.40
0.31
0.55
0.35
0.35
0.35
0.55
0.73
0.25
1.49
1.49
1.60
1.49
1.95
1.10
1.71
1.71
1.71
1.10
0.82
2.36
0.82
0.82
0.88
0.82
1.07
0.60
0.94
0.94
0.94
0.60
0.45
1.30
0.117
0.116
0.13
0.144
0.238
0.241
0.3
0.299
0.301
0.371
0.36
0.442
4T-15103/15245
33
32.5
55
58
0.8
1.3
6.0
0.35
1.71
0.94
0.296
4T-2682/2631
34.5
32
58
60
1.5
1.3
9.3
0.25
2.36
1.30
0.436
4T-L44649†/L44610
4T-15580†/15523
4T-15106†/15245
4T-2688†/2631
37.5
38.5
33.5
35
31
32
33
33
44.5
51
55
58
47
54
58
60
3.5
3.5
0.8
1.5
1.3
1.5
1.3
1.3
3.4
5.0
6.0
9.3
0.37
0.35
0.35
0.25
1.60
1.73
1.71
2.36
0.88
0.95
0.94
1.30
0.12
0.26
0.291
0.429
4T-1985/1930
4T-15590/15520
34
39.5
33.5
33.5
51
51
54
53
0.8
3.5
0.8
1.5
6.7
5.0
0.33
0.35
1.82
1.73
1.00
0.95
0.217
0.196
備考 3．ET 円すいころ軸受も製作しております。NTN にご照会ください。
B-163
● Tapered Roller Bearings
Inch series
J series
T
r1
C
r
B
φd
φD
a
d 28.575∼31.750mm
Boundary dimensions
Basic load ratings
static
dynamic
dynamic
mm
d
D
T
kN
Limiting speeds
static
min-1
kgf
B
C
Cr
Cor
Cr
Cor
grease
oil
28.575
58.738
60.325
60.325
62.000
64.292
66.421
68.262
68.262
69.850
72.626
73.025
19.050
19.842
19.845
19.050
21.433
23.812
22.225
22.225
23.812
24.608
22.225
19.355
17.462
19.355
20.638
21.433
25.433
22.225
23.812
25.357
24.257
22.225
15.080
15.875
15.875
14.288
16.670
19.050
17.462
17.462
19.050
17.462
17.462
40.5
39.5
40.5
46.5
51.5
64.5
57.0
57.5
69.0
58.0
56.5
44.5
45.5
44.5
54.0
64.5
72.5
67.0
65.5
81.5
55.5
68.0
4 150
4 050
4 150
4 750
5 250
6 550
5 800
5 850
7 050
5 900
5 750
4 550
4 650
4 550
5 500
6 600
7 400
6 850
6 700
8 300
5 700
6 900
6 700
6 700
6 700
6 100
6 100
6 200
5 800
5 700
5 700
5 800
5 300
8 900
8 900
8 900
8 200
8 100
8 200
7 700
7 700
7 600
7 700
7 000
29.000
50.292
14.224
14.732
10.668
28.0
35.5
2 860
3 600
7 200
9 600
29.367
66.421
23.812
25.433
19.050
64.5
72.5
6 550
7 400
6 200
8 200
29.987
62.000
62.000
16.002
19.050
16.566
20.638
14.288
14.288
39.0
46.5
42.0
54.0
3 950
4 750
4 300
5 500
6 300
6 100
8 400
8 200
30.000
69.012
72.000
19.845
29.370
19.583
27.783
15.875
23.020
48.5
72.0
58.0
97.0
4 900
7 350
5 900
9 850
5 600
5 400
7 400
7 100
30.112
62.000
19.050
20.638
14.288
46.5
54.0
4 750
5 500
6 100
8 200
30.162
62.000
64.292
69.850
72.626
16.002
21.433
23.812
30.162
16.566
21.433
25.357
29.997
14.288
16.670
19.050
23.812
39.0
51.5
69.0
84.5
42.0
64.5
81.5
98.0
3 950
5 250
7 050
8 600
4 300
6 600
8 300
9 950
6 300
6 100
5 700
5 500
8 400
8 100
7 600
7 300
30.213
62.000
62.000
62.000
19.050
19.050
19.050
20.638
20.638
20.638
14.288
14.288
14.288
46.5
46.5
46.5
54.0
54.0
54.0
4 750
4 750
4 750
5 500
5 500
5 500
6 100
6 100
6 100
8 200
8 200
8 200
30.226
69.012
69.012
19.845
19.845
19.583
19.583
15.875
15.875
48.5
48.5
58.0
58.0
4 900
4 900
5 900
5 900
5 600
5 600
7 400
7 400
31.750
59.131
62.000
62.000
15.875
18.161
19.050
16.764
19.050
20.638
11.811
14.288
14.288
34.5
46.5
46.5
41.0
54.0
54.0
3 500
4 750
4 750
4 150
5 500
5 500
6 300
6 100
6 100
8 400
8 200
8 200
Note: 1. Chamfer dimensions on the back face of the inner and outer rings of the bearing are larger than maximum values for installation dimensions ras and r1as.
2. As for the maximum value for inner ring bore diameters of bearings whose bearing numbers are marked with "†" (inner ring), the precision class is an integer
for class 4 and class 2 bearings only.
B-164
● Tapered Roller Bearings
r1a
Equivalent radial load
dynamic
Pr＝XFr＋YFa
Fa
Fa
＞e
≦e
Fr
Fr
X Y X
Y
1
0 0.4 Y2
static
Por＝0.5Fr＋YoFa
ra
φDa φdb
＊
φda φDb
ras 2.3
ras 5.6
min 3.56
15˚
min
4.75
Bearing numbers
When Por＜Fr use Por＝Fr
For values of e, Y2 and Yo
see the table below.
Abutment and fillet dimensions
Load Constant
Axial
center
load factors
mm
mm
ras
r 1as
da
db
Da
Db
max
max
a
4T-1985/1932
4T-15590/15523
4T-1985/1931
4T-15112/15245
4T-M86647/M86610
4T-2689/2631
4T-02474/02420
4T-2474/2420
4T-2578/2523
4T-41125/41286
4T-02872/02820
34
39.5
34
40
40
36
36.5
36
39
48
37.5
33.5
33.5
33.5
34
38
34
36
35
35
36.5
37
52
51
52
55
54
58
59
60
61
61
62
54
54
55
58
61
60
63
63
64
68
68
0.8
3.5
0.8
3.5
1.5
1.3
0.8
0.8
2.3
4.8
0.8
1.3
1.5
1.3
1.3
1.5
1.3
1.5
1.5
1.3
1.5
3.3
4T-L45449/L45410
39.5
33
44.5
48
3.5
4T-2690/2631
41
35
58
60
4T-17118†/17244
4T-15117†/15245
37
36.5
34.5
35
54
55
42.5
44.5
39.5
42.5
4T-15116/15245
36
4T-17119/17244
4T-M86649/M86610
4T-2558/2523
4T-3187/3120
Mass
kg
e
Y2
Yo
(approx.)
5.9
5.0
5.9
6.0
3.3
9.3
5.2
6.5
9.1
3.7
3.9
0.33
0.35
0.33
0.35
0.55
0.25
0.42
0.34
0.27
0.60
0.45
1.82
1.73
1.82
1.71
1.10
2.36
1.44
1.77
2.19
1.00
1.32
1.00
0.95
1.00
0.94
0.60
1.30
0.79
0.97
1.21
0.55
0.73
0.23
0.25
0.255
0.277
0.348
0.416
0.409
0.41
0.483
0.477
0.48
1.3
3.5
0.37
1.62
0.89
0.113
3.5
1.3
9.3
0.25
2.36
1.30
0.406
57
58
1.5
1.3
1.5
1.3
3.3
6.0
0.38
0.35
1.57
1.71
0.86
0.94
0.228
0.269
60
58
63
69
3.5
1.3
1.3
3.3
4.1
6.0
0.38
0.55
1.57
1.10
0.86
0.60
0.369
0.619
35.5
55
58
0.8
1.3
6.0
0.35
1.71
0.94
0.268
37
41
40
39
34.5
38
36.5
38.5
54
54
61
61
57
61
64
67
1.5
1.5
2.3
0.8
1.5
1.5
1.3
3.3
3.3
3.3
9.1
9.9
0.38
0.55
0.27
0.33
1.57
1.10
2.19
1.80
0.86
0.60
1.21
0.99
0.226
0.336
0.468
0.621
4T-15118/15245
4T-15119/15245
4T-15120/15245
41.5
37.5
36
35.5
35.5
35.5
55
55
55
58
58
58
3.5
1.5
0.8
1.3
1.3
1.3
6.0
6.0
6.0
0.35
0.35
0.35
1.71
1.71
1.71
0.94
0.94
0.94
0.265
0.267
0.267
4T-14116/14274
4T-14116/14276
37
37
36.5
36.5
59
60
63
63
0.8
0.8
3.3
1.3
4.1
4.1
0.38
0.38
1.57
1.57
0.86
0.86
0.366
0.37
4T-LM67048/LM67010
4T-15123/15245
4T-15125/15245
42.5
42.5
42.5
36
36.5
36.5
52
55
55
56
58
58
＊
＊
3.5
1.3
1.3
1.3
2.8
5.1
6.0
0.41
0.35
0.35
1.46
1.71
1.71
0.80
0.94
0.94
0.182
0.244
0.253
4T-14117A/14276
＃ 4T-JHM88540/JHM88513
Note: 3. Bearing numbers marked " ＃ " designate J-series bearings. The tolerances of these bearings is listed in Table 6.6 on page A-42.
4. Chamfer dimensions of bearings marked " ＊ " are shown in drawings.
B-165
● Tapered Roller Bearings
Inch series
J series
T
r1
C
r
B
φd
φD
a
d 31.750∼34.925mm
Boundary dimensions
Basic load ratings
static
dynamic
dynamic
mm
d
D
T
kN
B
C
Cr
Limiting speeds
static
min-1
kgf
Cor
Cr
Cor
grease
oil
31.750
62.000
66.421
68.262
68.262
69.012
69.012
69.850
69.850
72.626
72.626
73.025
73.025
73.025
73.812
76.200
79.375
19.050
25.400
22.225
22.225
19.845
19.845
23.812
23.812
30.162
30.162
22.225
22.225
29.370
29.370
29.370
29.370
20.638
25.357
22.225
22.225
19.583
19.583
25.357
25.357
29.997
29.997
22.225
23.812
27.783
27.783
28.575
29.771
14.288
20.638
17.462
17.462
15.875
15.875
19.050
19.050
23.812
23.812
17.462
17.462
23.020
23.020
23.020
23.812
46.5
69.0
57.0
57.0
48.5
48.5
69.0
69.0
84.5
84.5
56.5
62.5
72.0
72.0
78.0
93.0
54.0
81.5
67.0
67.0
58.0
58.0
81.5
81.5
98.0
98.0
68.0
75.5
97.0
97.0
105
114
4 750
7 050
5 800
5 800
4 900
4 900
7 050
7 050
8 600
8 600
5 750
6 400
7 350
7 350
7 950
9 450
5 500
8 300
6 850
6 850
5 900
5 900
8 300
8 300
9 950
9 950
6 900
7 700
9 850
9 850
10 700
11 600
6 100
5 700
5 800
5 800
5 600
5 600
5 700
5 700
5 500
5 500
5 300
5 200
5 400
5 400
5 100
4 900
8 200
7 600
7 700
7 700
7 400
7 400
7 600
7 600
7 300
7 300
7 000
7 000
7 100
7 100
6 800
6 600
33.338
68.262
69.012
69.850
72.626
73.025
76.200
76.200
76.200
79.375
22.225
19.845
23.812
30.162
29.370
23.812
29.370
29.370
25.400
22.225
19.583
25.357
29.997
27.783
25.654
28.575
28.575
24.074
17.462
15.875
19.050
23.812
23.020
19.050
23.020
23.020
17.462
56.5
48.5
69.0
84.5
72.0
73.0
78.0
78.0
65.5
71.0
58.0
81.5
98.0
97.0
90.5
105
105
67.0
5 750
4 900
7 050
8 600
7 350
7 450
7 950
7 950
6 650
7 250
5 900
8 300
9 950
9 850
9 200
10 700
10 700
6 800
5 700
5 600
5 700
5 500
5 400
5 100
5 100
5 100
5 200
7 500
7 400
7 600
7 300
7 100
6 800
6 800
6 800
6 900
34.925
65.088
65.088
69.012
72.233
72.238
73.025
73.025
73.025
73.025
73.025
73.025
76.200
18.034
18.034
19.845
25.400
20.638
22.225
22.225
22.225
23.812
23.812
23.812
23.812
18.288
18.288
19.583
25.400
20.638
22.225
22.225
23.812
24.608
24.608
25.654
25.654
13.970
13.970
15.875
19.842
15.875
17.462
17.462
17.462
19.050
19.050
19.050
19.050
46.5
46.5
48.5
65.0
48.0
56.5
56.5
62.5
71.0
71.0
73.0
73.0
56.0
56.0
58.0
84.5
58.5
68.0
68.0
75.5
85.0
85.0
90.5
90.5
4 750
4 750
4 900
6 600
4 900
5 750
5 750
6 400
7 200
7 200
7 450
7 450
5 700
5 700
5 900
8 600
5 950
6 900
6 900
7 700
8 700
8 700
9 200
9 200
5 700
5 700
5 600
5 400
5 300
5 300
5 300
5 200
5 300
5 300
5 100
5 100
7 600
7 600
7 400
7 200
7 000
7 000
7 000
7 000
7 100
7 100
6 800
6 800
Note: 1. Chamfer dimensions on the back face of the inner and outer rings of the bearing are larger than maximum values for installation dimensions ras and r1as.
2. Chamfer dimensions of bearings marked " ＊ " are shown in drawings.
B-166
● Tapered Roller Bearings
r1a
Equivalent radial load
dynamic
Pr＝XFr＋YFa
Fa
Fa
＞e
≦e
Fr
Fr
X Y X
Y
1
0 0.4 Y2
static
Por＝0.5Fr＋YoFa
ra
φDa φdb
＊
φda φDb
ras 2.3
ras 5.6
min 3.56
15˚
min
4.75
Bearing numbers
When Por＜Fr use Por＝Fr
For values of e, Y2 and Yo
see the table below.
Abutment and fillet dimensions
Load Constant
Axial
center
load factors
mm
mm
ras
r 1as
da
db
Da
Db
max
max
a
4T-15126/15245
4T-2580/2520
4T-02475/02420
4T-02476/02420
4T-14124/14276
4T-14125A/14276
4T-2580/2523
4T-2582/2523
4T-3188/3120
4T-3193/3120
4T-02875/02820
4T-2879/2820
4T-HM88542/HM88510
4T-HM88542/HM88512
4T-HM89440/HM89410
4T-3476/3420
37
38.5
44.5
39
38.5
44
38.5
44
40
45.5
45.5
39.5
45.5
45.5
45.5
43
36.5
37.5
38.5
38.5
37.5
37.5
37.5
37.5
39.5
39.5
39.5
38.5
42.5
42.5
44.5
41
55
57
59
59
60
60
61
61
61
61
62
63
59
60
62
67
58
62
63
63
63
63
64
64
67
67
68
68
70
70
73
74
0.8
0.8
3.5
0.8
0.8
3.5
0.8
3.5
0.8
3.5
3.5
0.8
1.3
1.3
0.8
1.3
1.3
3.3
1.5
1.5
1.3
1.3
1.3
1.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
4T-M88048/M88010
4T-14130/14276
4T-2585/2523
4T-3196/3120
4T-HM88547/HM88510
4T-2785/2720
4T-HM89443/HM89410
4T-HM89444/HM89410
4T-43131/43312
42.5
45
45
47
45.5
46
46.5
53
51
41
38.5
39
40.5
42.5
40
44.5
44.5
42
58
60
61
61
59
66
62
62
67
65
63
64
67
70
70
73
73
74
0.8
3.5
3.5
3.5
0.8
3.5
0.8
3.8
3.5
4T-LM48548/LM48510
4T-LM48548A/LM48510
4T-14137A/14276
4T-HM88649/HM88610
4T-16137/16284
4T-02877/02820
4T-02878/02820
4T-2878/2820
4T-25877/25820
4T-25877/25821
4T-2793/2735X
4T-2793/2720
46
40.5
42
48.5
47
48.5
42.5
42
43
43
42
42
40
42
40
42.5
40.5
42
42
41
40.5
40.5
41
41
58
58
60
60
63
62
62
63
64
65
66
66
61
61
63
69
67
68
68
68
68
68
69
70
＊
0.8
1.5
2.3
3.5
3.5
0.8
0.8
1.5
1.5
0.8
0.8
B-167
Mass
kg
e
Y2
Yo
(approx.)
6.0
9.1
5.2
5.2
4.1
4.1
9.1
9.1
9.9
9.9
3.9
5.5
6.0
6.0
5.8
8.7
0.35
0.27
0.42
0.42
0.38
0.38
0.27
0.27
0.33
0.33
0.45
0.37
0.55
0.55
0.55
0.37
1.71
2.19
1.44
1.44
1.57
1.57
2.19
2.19
1.80
1.80
1.32
1.63
1.10
1.10
1.10
1.64
0.94
1.21
0.79
0.79
0.86
0.86
1.21
1.21
0.99
0.99
0.73
0.90
0.60
0.60
0.60
0.90
0.255
0.409
0.38
0.383
0.359
0.356
0.454
0.451
0.603
0.601
0.451
0.465
0.622
0.638
0.686
0.767
1.5
1.3
1.3
3.3
3.3
3.3
3.3
3.3
1.5
2.9
4.1
9.1
9.9
6.0
7.8
5.8
5.8
1.4
0.55
0.38
0.27
0.33
0.55
0.30
0.55
0.55
0.67
1.10
1.57
2.19
1.80
1.10
1.98
1.10
1.10
0.90
0.60
0.86
1.21
0.99
0.60
1.09
0.60
0.60
0.49
0.378
0.344
0.435
0.581
0.604
0.551
0.668
0.665
0.568
1.3
1.3
1.3
2.3
1.3
3.3
3.3
3.3
2.3
0.8
0.8
3.3
3.7
3.7
4.1
4.6
4.2
3.9
3.9
5.5
8.1
8.1
7.8
7.8
0.38
0.38
0.38
0.55
0.40
0.45
0.45
0.37
0.29
0.29
0.30
0.30
1.59
1.59
1.57
1.10
1.49
1.32
1.32
1.63
2.07
2.07
1.98
1.98
0.88
0.88
0.86
0.60
0.82
0.73
0.73
0.90
1.14
1.14
1.09
1.09
0.249
0.252
0.333
0.489
0.385
0.422
0.425
0.434
0.471
0.474
0.485
0.536
● Tapered Roller Bearings
Inch series
J series
T
r1
C
r
B
φd
φD
a
d 34.925∼38.100mm
Boundary dimensions
Basic load ratings
static
dynamic
dynamic
mm
d
D
T
kN
B
C
Cr
Limiting speeds
static
min-1
kgf
Cor
Cr
Cor
grease
oil
34.925
76.200
76.200
76.200
76.200
79.375
80.167
85.725
23.812
29.370
29.370
29.370
29.370
29.370
30.162
25.654
28.575
28.575
28.575
29.771
30.391
30.162
19.050
23.020
23.812
23.812
23.812
23.812
23.812
73.0
78.0
80.5
80.5
93.0
95.0
105
90.5
105
97.0
97.0
114
112
132
7 450
7 950
8 200
8 200
9 450
9 700
10 700
9 200
10 700
9 900
9 900
11 600
11 400
13 400
5 100
5 100
5 100
5 100
4 900
4 800
4 500
6 800
6 800
6 800
6 800
6 600
6 400
6 000
34.976
69.012
19.845
19.583
15.875
48.5
58.0
4 900
5 900
5 600
7 400
34.988
59.974
61.973
61.973
15.875
16.700
18.000
16.764
17.000
17.000
11.938
13.600
15.000
35.5
37.0
37.0
47.5
48.0
48.0
3 600
3 800
3 800
4 850
4 900
4 900
6 100
5 900
5 900
8 100
7 900
7 900
35.000
70.000
79.375
80.000
24.000
23.812
21.000
23.500
25.400
22.403
19.000
19.050
17.826
62.0
76.5
68.0
78.0
97.5
75.0
6 350
7 800
6 950
7 950
9 950
7 650
5 500
4 800
4 700
7 300
6 400
6 300
35.717
72.233
72.626
25.400
25.400
25.400
25.400
19.842
19.842
65.0
65.0
84.5
84.5
6 600
6 600
8 600
8 600
5 400
5 400
7 200
7 200
36.487
73.025
76.200
23.812
23.812
24.608
25.654
19.050
19.050
71.0
73.0
85.0
90.5
7 200
7 450
8 700
9 200
5 300
5 100
7 100
6 800
36.512
76.200
76.200
76.200
79.375
79.375
88.500
29.370
29.370
29.370
29.370
29.370
25.400
28.575
28.575
28.575
28.829
29.771
23.698
23.020
23.020
23.812
22.664
23.812
17.462
78.0
78.0
80.5
86.5
93.0
70.5
105
105
97.0
104
114
78.0
7 950
7 950
8 200
8 800
9 450
7 200
10 700
10 700
9 900
10 600
11 600
7 950
5 100
5 100
5 100
5 000
4 900
4 000
6 800
6 800
6 800
6 600
6 600
5 300
38.000
63.000
17.000
17.000
13.500
38.5
52.5
3 950
5 350
5 700
7 600
38.100
63.500
65.088
69.012
69.012
71.438
72.000
12.700
18.034
19.050
19.050
15.875
19.000
11.908
18.288
19.050
19.050
16.520
20.638
9.525
13.970
15.083
15.083
11.908
14.237
25.9
43.5
47.5
47.5
43.5
48.0
33.5
57.0
59.5
59.5
51.0
58.5
2 640
4 400
4 850
4 850
4 400
4 900
3 400
5 800
6 050
6 050
5 200
5 950
5 500
5 500
5 300
5 300
5 400
5 300
7 300
7 400
7 100
7 100
7 200
7 000
Note: 1. Chamfer dimensions on the back face of the inner and outer rings of the bearing are larger than maximum values for installation dimensions ras and r1as.
2. As for the maximum value for inner and outer ring diameters of bearings whose bearing numbers are marked with "†" (inner ring) and "††" (outer ring),
the precision class is an integer for class 4 and class 2 bearings only.
B-168
● Tapered Roller Bearings
r1a
Equivalent radial load
dynamic
Pr＝XFr＋YFa
Fa
Fa
＞e
≦e
Fr
Fr
X Y X
Y
1
0 0.4 Y2
static
Por＝0.5Fr＋YoFa
ra
φDa φdb
＊
φda φDb
ras 2.3
ras 5.6
min 3.56
15˚
min
4.75
Bearing numbers
When Por＜Fr use Por＝Fr
For values of e, Y2 and Yo
see the table below.
Abutment and fillet dimensions
Load Constant
Axial
center
load factors
mm
mm
ras
r 1as
Mass
kg
da
db
Da
Db
max
max
a
e
Y2
Yo
(approx.)
4T-2793/2729
4T-HM89446/HM89410
4T-31593/31520
4T-31594/31520
4T-3478/3420
4T-3379/3320
4T-3872/3820
42
53
50
46
50
48
53
41
44.5
43.5
43.5
43.5
41.5
46
68
62
64
64
67
70
73
70
73
72
72
74
75
81
0.8
3.5
3.5
1.5
3.5
3.5
3.5
0.8
3.3
3.3
3.3
3.3
3.3
3.3
7.8
5.8
7.8
7.8
8.7
11.2
8.1
0.30
0.55
0.40
0.40
0.37
0.27
0.40
1.98
1.10
1.49
1.49
1.64
2.20
1.49
1.09
0.60
0.82
0.82
0.90
1.21
0.82
0.541
0.646
0.625
0.627
0.725
0.732
0.897
4T-14139/14276
41.5
40
60
63
1.3
1.3
4.1
0.38
1.57
0.86
0.333
4T-L68149†/L68111††
4T-LM78349A†/LM78310A††
4T-LM78349†/LM78310C††
45.5
42
46
39
39.5
40
53
54
56
56
59
59
＊
1.5
＊
1.3
1.5
1.5
2.5
2.4
2.4
0.42
0.44
0.44
1.44
1.35
1.35
0.79
0.74
0.74
0.179
0.209
0.218
47
42.5
42.5
42
42
41.5
60
71
73
67
74
75
2
0.8
0.8
1.5
0.8
1.3
3.6
7.4
6.6
0.55
0.32
0.27
1.10
1.88
2.20
0.60
1.04
1.21
0.42
0.61
0.534
4T-HM88648/HM88610
4T-HM88648/HM88611AS
52
52
43
43
60
59
69
69
3.5
3.5
2.3
3.3
4.6
3.0
0.55
0.55
1.10
1.10
0.60
0.60
0.478
0.482
4T-25880/25821
4T-2780/2720
44
44.5
42
42.5
65
66
68
70
1.5
1.5
0.8
3.3
8.1
7.8
0.29
0.30
2.07
1.98
1.14
1.09
0.457
0.518
4T-HM89448/HM89410
4T-HM89449/HM89411
4T-31597/31520
4T-HM89249/HM89210
4T-3479/3420
4T-44143/44348
48.5
54
51
55
45.5
54
44.5
44.5
44.5
44
44.5
50
62
65
64
66
67
75
73
73
72
75
74
84
0.8
3.5
3.5
3.5
0.8
2.3
3.3
0.8
3.3
3.3
3.3
1.5
5.8
5.8
7.8
5.8
8.7
–2.9
0.55
0.55
0.40
0.55
0.37
0.78
1.10
1.10
1.49
1.10
1.64
0.77
0.60
0.60
0.82
0.60
0.90
0.42
0.629
0.631
0.605
0.686
0.707
0.729
49
42.5
56
60
＊
1.3
2.3
0.42
1.44
0.79
0.198
45
49
49.5
46.5
45
49.5
42.5
42.5
43
43
43
43
59
59
61
61
63
63
60
62
65
65
66
67
1.5
＊
3.5
2
1.5
3.5
0.8
1.3
2.3
2.3
1
1.5
0.8
4.3
3.0
3.0
1.4
4.2
0.35
0.33
0.40
0.40
0.44
0.40
1.73
1.80
1.49
1.49
1.35
1.49
0.95
0.99
0.82
0.82
0.74
0.82
0.147
0.233
0.293
0.296
0.273
0.331
＃ 4T-JS3549A/JS3510
4T-26883/26822
4T-339/332
＃ 4T-JL69349/JL69310
4T-13889/13830
4T-LM29748/LM29710
4T-13685/13621
4T-13687/13621
4T-19150/19281
4T-16150/16282
Note: 3. Bearing numbers marked " ＃ " designate J-series bearings. The tolerances of these bearings is listed in Table 6.6 on page A-42.
4. Chamfer dimensions of bearings marked " ＊ " are shown in drawings.
B-169
● Tapered Roller Bearings
Inch series
T
r1
C
r
B
φd
φD
a
d 38.100∼41.275mm
Boundary dimensions
Basic load ratings
static
dynamic
dynamic
mm
d
D
T
kN
B
C
Cr
Limiting speeds
static
min-1
kgf
Cor
Cr
Cor
grease
oil
38.100
76.200
76.200
76.200
79.375
79.375
80.000
80.035
82.550
82.931
85.725
87.312
88.500
88.500
20.638
23.812
23.812
23.812
29.370
21.006
24.608
29.370
23.812
30.162
30.162
25.400
26.988
20.940
25.654
25.654
25.400
29.771
20.940
23.698
28.575
25.400
30.162
30.886
23.698
29.083
15.507
19.050
19.050
19.050
23.812
15.875
18.512
23.020
19.050
23.812
23.812
17.462
22.225
55.5
73.0
73.0
76.5
93.0
55.5
67.0
87.0
76.0
105
94.0
70.5
95.5
63.0
90.5
90.5
97.5
114
63.0
82.5
117
98.0
132
117
78.0
107
5 650
7 450
7 450
7 800
9 450
5 650
6 850
8 850
7 750
10 700
9 600
7 200
9 750
6 450
9 200
9 200
9 950
11 600
6 450
8 400
11 900
10 000
13 400
12 000
7 950
10 900
5 000
5 100
5 100
4 800
4 900
5 000
4 800
4 700
4 500
4 500
4 400
4 000
4 600
6 700
6 800
6 800
6 400
6 600
6 700
6 400
6 200
6 000
6 000
5 900
5 300
6 100
39.688
76.200
77.534
79.375
80.035
80.167
88.500
23.812
29.370
23.812
29.370
29.370
25.400
25.654
30.391
25.400
30.391
30.391
23.698
19.050
23.812
19.050
23.812
23.812
17.462
73.0
95.0
76.5
95.0
95.0
70.5
90.5
112
97.5
112
112
78.0
7 450
9 700
7 800
9 700
9 700
7 200
9 200
11 400
9 950
11 400
11 400
7 950
5 100
4 800
4 800
4 800
4 800
4 000
6 800
6 400
6 400
6 400
6 400
5 300
40.000
76.200
80.000
85.000
88.500
107.950
20.638
21.000
20.638
26.988
36.512
20.940
22.403
21.692
29.083
36.957
15.507
17.826
17.462
22.225
28.575
55.5
68.0
69.5
95.5
141
63.0
75.0
79.5
107
177
5 650
6 950
7 100
9 750
14 400
6 450
7 650
8 100
10 900
18 100
5 000
4 700
4 400
4 600
3 600
6 700
6 300
5 800
6 100
4 800
40.483
82.550
29.370
28.575
23.020
87.0
8 850
11 900
4 700
6 200
40.988
67.975
17.500
18.000
13.500
46.0
62.5
4 700
6 400
5 300
7 000
41.275
73.025
73.431
73.431
76.200
76.200
76.200
79.375
80.000
16.667
19.558
21.430
18.009
22.225
25.400
23.812
18.009
17.462
19.812
19.812
17.384
23.020
25.400
25.400
17.384
12.700
14.732
16.604
14.288
17.462
20.638
19.050
14.288
46.0
56.0
56.0
42.5
65.0
76.5
76.5
42.5
55.5
69.5
69.5
51.5
80.5
97.5
97.5
51.5
4 700
5 700
5 700
4 350
6 600
7 800
7 800
4 350
5 700
7 100
7 100
5 250
8 200
9 950
9 950
5 250
5 000
5 000
5 000
4 900
4 900
4 800
4 800
4 900
6 600
6 600
6 600
6 500
6 500
6 400
6 400
6 500
117
Note: 1. Chamfer dimensions on the back face of the inner and outer rings of the bearing are larger than maximum values for installation dimensions ras and r1as.
2. As for the maximum value for inner and outer ring diameters of bearings whose bearing numbers are marked with "†" (inner ring) and "††" (outer ring),
the precision class is an integer for class 4 and class 2 bearings only.
B-170
● Tapered Roller Bearings
r1a
Equivalent radial load
dynamic
Pr＝XFr＋YFa
Fa
Fa
＞e
≦e
Fr
Fr
X Y X
Y
1
0 0.4 Y2
static
Por＝0.5Fr＋YoFa
ra
φDa φdb
＊
φda φDb
ras 2.3
ras 5.6
min 3.56
15˚
min
4.75
Bearing numbers
When Por＜Fr use Por＝Fr
For values of e, Y2 and Yo
see the table below.
Abutment and fillet dimensions
Load Constant
Axial
center
load factors
mm
mm
ras
r 1as
da
db
Da
Db
max
max
4T-28150/28300
4T-2776/2720
4T-2788/2720
4T-26878/26822
4T-3490/3420
4T-28150/28315
4T-27880/27820
4T-HM801346/HM801310
4T-25572/25520
4T-3875/3820
4T-3580/3525
4T-44150/44348
4T-418/414
45.5
52
50
45
52
45.5
48
51
46
49.5
48
55
51
43.5
43.5
43.5
44.5
45.5
43.5
47
49
46
48.5
45.5
51
44.5
68
66
66
71
67
69
68
68
74
73
75
75
77
71
70
70
74
74
73
75
78
77
81
81
84
80
1.5
4.3
3.5
0.8
3.5
1.5
0.8
0.8
0.8
0.8
1.5
2.3
3.5
1.3
3.3
3.3
0.8
3.3
1.5
1.5
3.3
0.8
3.3
3.3
1.5
1.5
4T-2789/2720
4T-3382/3321
4T-26880/26822
4T-3382/3339
4T-3386/3320
4T-44158/44348
52
52
48
52
46.5
58
45
45.5
45.5
45.5
45.5
51
66
68
71
71
70
75
70
75
74
75
75
84
3.5
3.5
1.5
3.5
0.8
3.5
4T-28158/28300
4T-344/332
4T-350A/354A
4T-420/414
4T-543/532X
47.5
52
47.5
52
57
45
45.5
46.5
46
50
68
73
77
77
94
71
75
80
80
100
4T-HM801349/HM801310
58
49
68
4T-LM300849†/LM300811††
52
45
4T-18590/18520
4T-LM501349/LM501310
4T-LM501349/LM501314
4T-11162/11300
4T-24780/24720
4T-26882/26823
4T-26885/26822
4T-11162/11315
53
53
53
49
54
54
48
49
46
46.5
46.5
46.5
47
47
47
46.5
kg
e
Y2
Yo
(approx.)
4.8
7.8
7.8
7.4
8.7
4.8
2.5
4.7
6.2
8.1
10.0
–2.91）
9.1
0.40
0.30
0.30
0.32
0.37
0.40
0.56
0.55
0.33
0.40
0.31
0.78
0.26
1.49
1.98
1.98
1.88
1.64
1.49
1.07
1.10
1.79
1.49
1.96
0.77
2.28
0.82
1.09
1.09
1.04
0.90
0.82
0.59
0.60
0.99
0.82
1.08
0.42
1.25
0.405
0.495
0.497
0.574
0.683
0.467
0.562
0.767
0.645
0.857
0.881
0.711
0.84
3.3
3.3
0.8
1.5
3.3
1.5
7.8
11.2
7.4
11.2
11.2
–2.91）
0.30
0.27
0.32
0.27
0.27
0.78
1.98
2.20
1.88
2.20
2.20
0.77
1.09
1.21
1.04
1.21
1.21
0.42
0.477
0.669
0.554
0.666
0.668
0.691
1.5
3.5
0.8
3.5
3.5
1.3
1.3
1.3
1.5
3.3
4.8
6.6
5.1
9.1
12.3
0.40
0.27
0.31
0.26
0.30
1.49
2.20
1.96
2.28
2.02
0.82
1.21
1.08
1.25
1.11
0.386
0.479
0.562
0.813
1.77
78
3.5
3.3
4.7
0.55
1.10
0.60
0.731
61
65
＊
1.5
3.6
0.35
1.72
0.95
0.239
66
67
66
67
68
69
71
69
69
70
70
71
72
73
74
73
3.5
3.5
3.5
1.5
3.5
3.5
0.8
1.5
1.5
0.8
0.8
1.5
0.8
1.5
0.8
1.5
2.9
3.3
3.3
0.7
4.5
7.4
7.4
0.7
0.35
0.40
0.40
0.49
0.39
0.32
0.32
0.49
1.71
1.50
1.50
1.23
1.53
1.88
1.88
1.23
0.94
0.83
0.83
0.68
0.84
1.04
1.04
0.68
0.281
0.335
0.355
0.337
0.432
0.488
0.535
0.389
Note: 3. Chamfer dimensions of bearings marked " ＊ " are shown in drawings.
1）"−" means that load center at outside on end of inner ring.
B-171
a
Mass
● Tapered Roller Bearings
Inch series
T
r1
C
r
B
φd
φD
a
d 41.275∼44.450mm
Boundary dimensions
Basic load ratings
static
dynamic
dynamic
mm
d
D
T
kN
B
C
Cr
Limiting speeds
static
min-1
kgf
Cor
Cr
Cor
grease
oil
41.275
80.000
80.000
82.550
85.725
87.312
88.900
90.488
92.075
93.662
95.250
95.250
95.250
21.000
23.812
26.543
30.162
30.162
30.162
39.688
26.195
31.750
30.162
30.958
30.958
22.403
25.400
25.654
30.162
30.886
29.370
40.386
23.812
31.750
29.370
28.300
28.575
17.826
19.050
20.193
23.812
23.812
23.020
33.338
16.670
26.195
23.020
20.638
22.225
68.0
76.5
80.5
105
94.0
93.5
136
72.5
104
109
82.5
96.0
75.0
97.5
104
132
117
125
175
81.5
131
147
92.0
116
6 950
7 800
8 200
10 700
9 600
9 550
13 900
7 400
10 600
11 100
8 400
9 800
7 650
9 950
10 600
13 400
12 000
12 700
17 900
8 300
13 400
15 000
9 350
11 800
4 700
4 800
4 600
4 500
4 400
4 300
4 300
3 800
4 100
4 000
3 700
3 700
6 300
6 400
6 100
6 000
5 900
5 800
5 800
5 000
5 500
5 300
5 000
4 900
42.070
90.488
39.688
40.386
33.338
136
175
13 900
17 900
4 300
5 800
42.862
82.550
82.931
87.312
26.195
23.812
30.162
26.988
25.400
30.886
20.638
19.050
23.812
75.5
76.0
94.0
97.0
98.0
117
7 700
7 750
9 600
9 900
10 000
12 000
4 600
4 500
4 400
6 100
6 000
5 900
42.875
79.375
82.931
23.812
23.812
25.400
25.400
19.050
19.050
76.5
76.0
97.5
98.0
7 800
7 750
9 950
10 000
4 800
4 500
6 400
6 000
44.450
76.992
79.375
82.931
82.931
84.138
85.000
87.312
88.900
93.264
93.662
95.250
95.250
95.250
95.250
95.250
101.600
104.775
17.462
17.462
23.812
23.812
30.162
20.638
30.162
30.162
30.162
31.750
27.783
27.783
30.162
30.958
30.958
34.925
30.162
17.145
17.462
25.400
25.400
30.886
21.692
30.886
29.370
30.302
31.750
28.575
29.900
29.370
28.300
28.575
36.068
29.317
11.908
13.495
19.050
19.050
23.812
17.462
23.812
23.020
23.812
26.195
22.225
22.225
23.020
20.638
22.225
26.988
24.605
44.0
45.5
76.0
76.0
94.0
69.5
94.0
93.5
102
103
107
108
109
82.5
96.0
135
115
54.0
56.0
98.0
98.0
117
79.5
117
125
134
131
139
129
147
92.0
116
165
148
4 450
4 600
7 750
7 750
9 600
7 100
9 600
9 550
10 400
10 600
10 900
11 000
11 100
8 400
9 800
13 800
11 700
5 550
5 700
10 000
10 000
12 000
8 100
12 000
12 700
13 700
13 400
14 200
13 200
15 000
9 350
11 800
16 800
15 000
4 700
4 600
4 500
4 500
4 400
4 400
4 400
4 300
4 000
4 100
3 900
4 200
4 000
3 700
3 700
3 800
3 500
6 300
6 200
6 000
6 000
5 900
5 800
5 900
5 800
5 300
5 500
5 200
5 600
5 300
5 000
4 900
5 000
4 700
Note: 1. Chamfer dimensions on the back face of the inner and outer rings of the bearing are larger than maximum values for installation dimensions ras and r1as.
B-172
● Tapered Roller Bearings
r1a
Equivalent radial load
dynamic
Pr＝XFr＋YFa
Fa
Fa
＞e
≦e
Fr
Fr
X Y X
Y
1
0 0.4 Y2
static
Por＝0.5Fr＋YoFa
ra
φDa φdb
＊
φda φDb
ras 2.3
ras 5.6
min 3.56
15˚
min
4.75
Bearing numbers
When Por＜Fr use Por＝Fr
For values of e, Y2 and Yo
see the table below.
Abutment and fillet dimensions
Load Constant
Axial
center
load factors
mm
mm
ras
r 1as
da
db
Da
Db
max
max
4T-336/332
4T-26882/26824
4T-M802048/M802011
4T-3880/3820
4T-3576/3525
4T-HM803145/HM803110
4T-4388/4335
4T-M903345/M903310
4T-46162/46368
4T-HM804840/HM804810
4T-53162/53375
4T-HM903245/HM903210
47
54
57
52
49
54
57
60
52
61
57
63
46
47
51
50
48
53
51
54
51
54
53
54
73
70
70
73
75
74
77
78
79
81
81
81
75
74
79
81
81
85
85
88
87
91
89
91
0.8
3.5
3.5
0.8
0.8
0.8
3.5
3.5
0.8
3.5
1.5
3.5
1.3
1.3
3.3
3.3
3.3
3.3
3.3
1.5
3.3
3.3
0.8
0.8
4T-4395/4335
58
51
77
85
3.5
4T-22780/22720
4T-25578/25520
4T-3579/3525
56
53
56
50
49.5
49.5
71
74
75
77
77
81
4T-26884/26822
4T-25577/25520
55
55
48.5
49
71
74
4T-12175/12303
4T-18685/18620
4T-25580/25520
4T-25582/25520
4T-3578/3520
4T-355/354A
4T-3578/3525
4T-HM803149/HM803110
4T-3782/3720
4T-46175/46368
4T-33885/33821
4T-438/432
4T-HM804842/HM804810
4T-53177/53375
4T-HM903249/HM903210
4T-527/522
4T-460/453X
52
54
57
60
57
54
57
62
58
55
53
57
57
63
65
59
60
49.5
49.5
50
50
51
50
51
53
52
54
53
51
57
53
54
53
54
68
71
74
74
74
77
75
74
82
79
85
83
81
81
81
89
92
kg
e
Y2
Yo
(approx.)
6.6
7.4
3.2
8.1
10.0
4.6
15.0
– 3.61）
7.1
3.7
0.5
– 0.41）
0.27
0.32
0.55
0.40
0.31
0.55
0.28
0.83
0.40
0.55
0.74
0.74
2.20
1.88
1.10
1.49
1.96
1.10
2.11
0.72
1.49
1.10
0.81
0.81
1.21
1.04
0.60
0.82
1.08
0.60
1.16
0.40
0.82
0.60
0.45
0.45
0.468
0.542
0.642
0.81
0.834
0.901
1.25
0.758
1.09
1.08
0.975
1.05
3.3
15.0
0.28
2.11
1.16
1.24
3.5
2.3
3.5
3.3
0.8
3.3
6.4
6.2
10.0
0.40
0.33
0.31
1.49
1.79
1.96
0.82
0.99
1.08
0.617
0.584
0.805
74
77
3.5
3.5
0.8
0.8
7.4
6.2
0.32
0.33
1.88
1.79
1.04
0.99
0.51
0.581
73
74
77
77
80
80
81
85
88
87
90
87
91
89
91
95
98
1.5
2.8
3.5
5
3.5
2.3
3.5
3.5
3.5
0.8
0.8
3.5
0.8
3.5
3.5
3.5
3.5
1.5
1.5
0.8
0.8
3.3
1.3
3.3
3.3
3.3
3.3
2.3
2.3
3.3
0.8
0.8
3.3
3.3
– 0.21）
2.2
6.2
6.2
10.0
5.1
10.0
4.6
8.3
7.1
8.0
9.2
3.7
0.5
– 0.41）
12.9
7.1
0.51
0.37
0.33
0.33
0.31
0.31
0.31
0.55
0.34
0.40
0.33
0.28
0.55
0.74
0.74
0.29
0.34
1.19
1.60
1.79
1.79
1.96
1.96
1.96
1.10
1.77
1.49
1.82
2.11
1.10
0.81
0.81
2.10
1.79
0.65
0.88
0.99
0.99
1.08
1.08
1.08
0.60
0.97
0.82
1.00
1.16
0.60
0.45
0.45
1.16
0.98
0.308
0.345
0.56
0.556
0.699
0.511
0.779
0.849
0.961
1.04
0.987
0.953
1.04
0.925
1
1.37
1.29
1）" − " means that load center at outside on end of inner ring.
B-173
a
Mass
● Tapered Roller Bearings
Inch series
T
r1
C
r
B
φd
φD
a
d 44.450∼47.625mm
Boundary dimensions
Basic load ratings
static
dynamic
dynamic
mm
d
D
T
kN
B
C
Cr
Limiting speeds
static
min-1
kgf
Cor
Cr
Cor
grease
oil
44.450
104.775
104.775
111.125
111.125
127.000
30.162
36.512
30.162
30.162
50.800
30.958
36.512
26.909
26.909
52.388
23.812
28.575
20.638
20.638
41.275
130
138
104
104
250
169
189
136
136
320
13 200
14 000
10 600
10 600
25 500
17 300
19 300
13 900
13 900
33 000
3 500
3 600
3 200
3 200
3 200
4 700
4 800
4 200
4 200
4 300
44.983
82.931
93.264
23.812
30.162
25.400
30.302
19.050
23.812
76.0
102
98.0
134
7 750
10 400
10 000
13 700
4 500
4 000
6 000
5 300
45.000
85.000
88.900
20.638
20.638
21.692
22.225
17.462
16.513
69.5
76.5
79.5
90.5
7 100
7 800
8 100
9 250
4 400
4 100
5 800
5 500
45.237
87.312
30.162
30.886
23.812
94.0
9 600
12 000
4 400
5 900
45.242
73.431
77.788
19.558
19.842
19.812
19.842
15.748
15.080
54.0
57.5
76.0
73.5
5 550
5 850
7 750
7 500
4 800
4 600
6 400
6 200
45.618
82.550
82.931
83.058
85.000
23.812
23.812
23.876
23.812
25.400
25.400
25.400
25.400
19.050
19.050
19.114
19.050
76.0
76.0
76.0
76.0
98.0
98.0
98.0
98.0
7 750
7 750
7 750
7 750
10 000
10 000
10 000
10 000
4 500
4 500
4 500
4 500
6 000
6 000
6 000
6 000
45.987
74.976
18.000
18.000
14.000
51.0
71.0
5 200
7 250
4 700
6 300
46.038
79.375
82.931
85.000
85.000
90.119
93.264
95.250
17.462
23.812
20.638
25.400
23.000
30.162
27.783
17.462
25.400
21.692
25.608
21.692
30.302
29.900
13.495
19.050
17.462
20.638
21.808
23.812
22.225
45.5
76.0
69.5
79.0
69.5
102
108
56.0
98.0
79.5
104
79.5
134
129
4 600
7 750
7 100
8 050
7 100
10 400
11 000
5 700
10 000
8 100
10 600
8 100
13 700
13 200
4 600
4 500
4 400
4 400
4 400
4 000
4 200
6 200
6 000
5 800
5 800
5 800
5 300
5 600
47.625
88.900
88.900
93.264
95.250
96.838
101.600
104.775
20.638
25.400
30.162
30.162
21.000
34.925
30.162
22.225
25.400
30.302
29.370
21.946
36.068
29.317
16.513
19.050
23.812
23.020
15.875
26.988
24.605
76.5
82.0
102
109
78.0
135
115
90.5
101
134
147
96.5
165
148
7 800
8 350
10 400
11 100
7 950
13 800
11 700
9 250
10 300
13 700
15 000
9 850
16 800
15 000
4 100
4 200
4 000
4 000
3 700
3 800
3 500
5 500
5 600
5 300
5 300
5 000
5 000
4 700
117
Note: 1. Chamfer dimensions on the back face of the inner and outer rings of the bearing are larger than maximum values for installation dimensions ras and r1as.
2. As for the maximum value for inner and outer ring diameters of bearings whose bearing numbers are marked with "†" (inner ring) and "††" (outer ring),
the precision class is an integer for class 4 and class 2 bearings only.
B-174
● Tapered Roller Bearings
r1a
Equivalent radial load
dynamic
Pr＝XFr＋YFa
Fa
Fa
＞e
≦e
Fr
Fr
X Y X
Y
1
0 0.4 Y2
static
Por＝0.5Fr＋YoFa
ra
φDa φdb
＊
φda φDb
ras 2.3
ras 5.6
min 3.56
15˚
min
4.75
Bearing numbers
When Por＜Fr use Por＝Fr
For values of e, Y2 and Yo
see the table below.
Abutment and fillet dimensions
Load Constant
Axial
center
load factors
mm
mm
ras
r 1as
max
max
da
db
Da
Db
4T-45280/45220
4T-HM807040/HM807010
4T-55175C/55437
4T-55176C/55437
4T-6277/6220
55
66
70
65
67
54
59
64
65
60
93
89
92
92
108
99
100
105
105
117
0.8
3.5
3.5
0.8
3.5
3.3
3.3
3.3
3.3
3.3
4T-25584/25520
4T-3776/3720
53
59
51
53
74
82
77
88
1.5
3.5
4T-358/354A
4T-367/362A
53
55
50
51
77
81
80
84
4T-3586/3525
58
52
75
4T-LM102949/LM102910
4T-LM603049/LM603011
56
57
50
50
4T-25590/25519
4T-25590/25520
4T-25590/25522
4T-25590/25526
58
58
58
58
4T-LM503349A†/LM503310††
kg
e
Y2
Yo
7.9
7.4
–7.41）
–7.41）
19.5
0.33
0.49
0.88
0.88
0.30
1.80
1.23
0.68
0.68
2.01
0.99
0.68
0.37
0.37
1.11
1.35
1.62
1.45
1.09
3.58
0.8
3.3
6.2
8.3
0.33
0.34
1.79
1.77
0.99
0.97
0.555
0.952
1.5
2
1.3
1.3
5.1
4.0
0.31
0.32
1.96
1.88
1.08
1.03
0.505
0.595
81
3.5
3.3
10.0
0.31
1.96
1.08
0.765
68
71
70
74
3.5
3.5
0.8
0.8
4.7
2.2
0.31
0.43
1.97
1.41
1.08
0.77
0.307
0.372
51
51
51
51
73
74
73
74
77
77
77
78
3.5
3.5
3.5
3.5
2
0.8
2
2.3
6.2
6.2
6.2
6.2
0.33
0.33
0.33
0.33
1.79
1.79
1.79
1.79
0.99
0.99
0.99
0.99
0.534
0.543
0.545
0.581
57
51
67
71
＊
1.5
1.9
0.40
1.49
0.82
0.296
4T-18690/18620
4T-25592/25520
4T-359A/354A
4T-2984/2924
4T-359S/352
4T-3777/3720
4T-436/432
56
58
57
58
55
60
59
51
52
51
52
51
53
52
71
74
77
76
78
82
83
74
77
80
80
82
88
87
2.8
3.5
3.5
3.5
2.3
3.5
3.5
1.5
0.8
1.3
1.3
2.3
3.3
2.3
2.2
6.2
5.1
6.4
5.1
8.3
9.2
0.37
0.33
0.31
0.35
0.31
0.34
0.28
1.60
1.79
1.96
1.73
1.96
1.77
2.11
0.88
0.99
1.08
0.95
1.08
0.97
1.16
0.329
0.538
0.489
0.615
0.651
0.934
0.927
4T-369A/362A
4T-M804048/M804010
4T-3778/3720
4T-HM804846/HM804810
4T-386A/382A
4T-528/522
4T-463/453X
60
57
67
66
56
62
65
53
56
55
57
55
55
56
81
77
82
81
89
89
92
84
85
88
91
92
95
98
3.5
0.8
6.4
3.5
0.8
3.5
4.8
1.3
3.3
3.3
3.3
0.8
3.3
3.3
4.0
1.7
8.3
3.7
3.1
12.9
7.1
0.32
0.55
0.34
0.55
0.35
0.29
0.34
1.88
1.10
1.77
1.10
1.69
2.10
1.79
1.03
0.60
0.97
0.60
0.93
1.16
0.98
0.559
0.662
0.898
0.978
0.72
1.3
1.24
Note: 3. Chamfer dimensions of bearings marked " ＊ " are shown in drawings.
1）"−" means that load center at outside on end of inner ring.
B-175
a
Mass
(approx.)
● Tapered Roller Bearings
Inch series
J series
T
r1
C
r
B
φd
φD
a
d 47.625∼50.800mm
Boundary dimensions
Basic load ratings
static
dynamic
dynamic
mm
d
D
T
kN
B
C
Cr
Limiting speeds
static
min-1
kgf
Cor
Cr
Cor
grease
oil
47.625
104.775
111.125
123.825
30.162
30.162
36.512
30.958
26.909
32.791
23.812
20.638
25.400
130
104
154
169
136
188
13 200
10 600
15 700
17 300
13 900
19 200
3 500
3 200
2 900
4 700
4 200
3 900
48.412
95.250
95.250
30.162
30.162
29.370
29.370
23.020
23.020
109
109
147
147
11 100
11 100
15 000
15 000
4 000
4 000
5 300
5 300
49.212
93.264
103.188
104.775
114.300
114.300
30.162
43.658
36.512
44.450
44.450
30.302
44.475
36.512
44.450
44.450
23.812
36.512
28.575
34.925
36.068
102
174
138
186
203
134
232
189
225
261
10 400
17 700
14 000
19 000
20 700
13 700
23 600
19 300
23 000
26 600
4 000
3 800
3 600
3 600
3 500
5 300
5 000
4 800
4 800
4 700
49.987
82.550
92.075
114.300
21.590
24.608
44.450
22.225
25.400
44.450
16.510
19.845
36.068
69.5
83.5
203
94.0
116
261
7 100
8 550
20 700
9 600
11 800
26 600
4 300
4 000
3 500
5 700
5 300
4 700
50.000
82.000
84.000
88.900
88.900
90.000
105.000
110.000
21.500
22.000
20.638
20.638
28.000
37.000
22.000
21.500
22.000
22.225
22.225
28.000
36.000
21.996
17.000
17.500
16.513
16.513
23.000
29.000
18.824
69.5
69.5
76.5
76.5
106
138
89.5
94.0
94.5
90.5
90.5
141
189
120
7 100
7 100
7 800
7 800
10 800
14 000
9 150
9 600
9 600
9 250
9 250
14 400
19 300
12 300
4 300
4 300
4 100
4 100
4 100
3 600
3 200
5 700
5 700
5 500
5 500
5 400
4 800
4 300
50.800
82.550
85.000
88.900
88.900
88.900
90.000
92.075
93.264
93.264
95.250
95.250
96.838
97.630
98.425
21.590
17.462
17.462
20.638
20.638
20.000
24.608
30.162
30.162
27.783
30.162
21.000
24.608
30.162
22.225
17.462
17.462
22.225
22.225
22.225
25.400
30.302
30.302
28.575
30.302
21.946
24.608
30.302
16.510
13.495
13.495
16.513
16.513
15.875
19.845
23.812
23.812
22.225
23.812
15.875
19.446
23.812
69.5
49.5
49.5
76.5
76.5
76.5
83.5
102
102
107
102
78.0
88.5
102
94.0
65.0
65.0
90.5
90.5
90.5
116
134
134
139
134
96.5
128
134
7 100
5 050
5 050
7 800
7 800
7 800
8 550
10 400
10 400
10 900
10 400
7 950
9 000
10 400
9 600
6 600
6 600
9 250
9 250
9 250
11 800
13 700
13 700
14 200
13 700
9 850
13 000
13 700
4 300
4 200
4 200
4 100
4 100
4 100
4 000
4 000
4 000
3 900
4 000
3 700
3 700
4 000
5 700
5 600
5 600
5 500
5 500
5 500
5 300
5 300
5 300
5 200
5 300
5 000
4 900
5 300
Note: 1. Chamfer dimensions on the back face of the inner and outer rings of the bearing are larger than maximum values for installation dimensions ras and r1as.
2. As for the maximum value for inner ring bore diameters of bearings whose bearing numbers are marked with "†" (inner ring), the precision class is an integer
for class 4 and class 2 bearings only.
B-176
● Tapered Roller Bearings
r1a
Equivalent radial load
dynamic
Pr＝XFr＋YFa
Fa
Fa
≦e
Fr
Fr ＞e
X Y X
Y
1
0 0.4 Y2
static
Por＝0.5Fr＋YoFa
ra
φDa φdb
φda φDb
When Por＜Fr use Por＝Fr
For values of e, Y2 and Yo
see the table below.
Bearing numbers
Abutment and fillet dimensions
Load Constant
Axial
center
load factors
mm
mm
ras
r 1as
max
max
da
db
Da
Db
4T-45282/45220
4T-55187C/55437
4T-72188C/72487
63
69
69
57
62
67
93
92
102
99
105
116
3.5
3.5
0.8
3.3
3.3
3.3
4T-HM804848/HM804810
4T-HM804849/HM804810
63
66
57
57
81
81
91
91
2.3
3.5
3.3
3.3
3.7
3.7
4T-3781/3720
4T-5395/5335
4T-HM807044/HM807010
4T-65390/65320
4T-HH506348/HH506310
62
66
69
70
71
56
60
63
60
61
82
89
89
97
97
88
97
100
107
107
3.5
3.5
3.5
3.5
3.5
3.3
3.3
3.3
3.3
3.3
4T-LM104947A†/LM104911
4T-28579†/28521
4T-HH506349†/HH506310
55
60
72
55
56
61
75
83
97
78
87
107
0.5
2.3
3.5
＃ 4T-JLM104948/JLM104910
＃ 4T-JLM704649/JLM704610
4T-365/362A
4T-366/362A
＃ 4T-JM205149/JM205110
＃ 4T-JHM807045/JHM807012
4T-396/394A
60
62
58
59
62
69
61
55
56
55
55
57
63
60
76
76
81
81
80
90
101
78
80
84
84
85
100
104
62
62
62
58
65
62
63
58
64
64
64
61
65
64
55
56
56
56
56
56
57
58
58
58
58
60
58
58
75
77
78
81
81
81
83
82
82
85
83
89
88
84
78
80
82
84
84
84
87
88
88
90
89
92
92
90
4T-LM104949/LM104911
4T-18790/18720
4T-18790/18724
4T-368/362A
4T-370A/362A
4T-368A/362
4T-28580/28521
4T-3775/3720
4T-3780/3720
4T-33889/33821
4T-3780/3726
4T-385A/382A
4T-28678/28622
4T-3780/3732
a
e
kg
Y2
Yo
1.80
0.68
0.81
0.99
0.37
0.45
1.29
1.4
2.16
0.55
0.55
1.10
1.10
0.60
0.60
0.967
0.964
8.3
16.1
7.4
12.5
13.3
0.34
0.30
0.49
0.43
0.40
1.77
2.02
1.23
1.39
1.49
0.97
1.11
0.68
0.77
0.82
0.877
1.75
1.52
2.23
2.33
1.3
0.8
3.3
5.8
4.6
13.3
0.31
0.38
0.40
1.97
1.59
1.49
1.08
0.87
0.82
0.434
0.718
2.27
3
3.5
2
2.3
3
3
0.8
0.5
1.5
1.3
1.3
2.5
2.5
1.3
5.4
2.3
4.0
4.0
7.4
7.5
0.7
0.31
0.44
0.32
0.32
0.33
0.49
0.40
1.97
1.37
1.88
1.88
1.82
1.23
1.49
1.08
0.75
1.03
1.03
1.00
0.68
0.82
0.42
0.466
0.53
0.529
0.752
1.52
1.06
3.5
3.5
3.5
1.5
5
3.5
3.5
0.8
3.5
3.5
3.5
2.3
3.5
3.5
1.3
1.5
1.3
1.3
1.3
2
0.8
3.3
3.3
2.3
3.3
0.8
0.8
3.3
5.8
0.8
0.8
4.0
4.0
4.0
4.6
8.3
8.3
8.0
8.3
3.1
3.3
8.3
0.31
0.41
0.41
0.32
0.32
0.32
0.38
0.34
0.34
0.33
0.34
0.35
0.40
0.34
1.97
1.48
1.48
1.88
1.88
1.88
1.59
1.77
1.77
1.82
1.77
1.69
1.49
1.77
1.08
0.81
0.81
1.03
1.03
1.03
0.87
0.97
0.97
1.00
0.97
0.93
0.82
0.97
0.419
0.374
0.431
0.519
0.511
0.525
0.703
0.852
0.848
0.876
0.903
0.676
0.852
0.993
7.9
0.33
–7.41） 0.88
–1.51） 0.74
Note: 3. Bearing numbers marked " ＃ " designate J-series bearings. The tolerances of these bearings is listed in Table 6.6 on page A-42.
1） "−" means that load center at outside on end of inner ring.
B-177
Mass
(approx.)
● Tapered Roller Bearings
Inch series
J series
T
r1
C
r
B
φd
φD
a
d 50.800 ∼ 55.000mm
Boundary dimensions
Basic load ratings
static
dynamic
dynamic
mm
d
D
T
kN
C
Cr
Cor
110
135
115
130
138
143
141
104
104
119
138
130
172
154
158
136
165
148
169
189
178
177
136
136
174
195
153
213
188
216
50.800
31.750
34.925
30.162
30.162
36.512
36.512
36.512
30.162
30.162
30.162
30.162
33.338
41.275
36.512
38.100
31.750
36.068
29.317
30.958
36.512
36.512
36.957
28.575
26.909
30.048
30.162
31.750
41.275
32.791
36.678
25.400
26.988
24.605
23.812
28.575
28.575
28.575
20.638
20.638
23.812
23.812
23.812
31.750
25.400
30.162
51.592
88.900
20.638
22.225
16.513
76.5
52.388
92.075
93.264
95.250
24.608
30.162
27.783
25.400
30.302
28.575
19.845
23.812
22.225
83.5
102
107
53.975
88.900
95.250
96.838
104.775
104.775
107.950
120.650
122.238
122.238
123.825
123.825
130.175
140.030
19.050
27.783
21.000
30.162
36.512
36.512
41.275
33.338
43.658
36.512
38.100
36.512
36.512
19.050
28.575
21.946
30.958
36.512
36.957
41.275
31.750
43.764
32.791
36.678
33.338
33.236
13.492
22.225
15.875
23.812
28.575
28.575
31.750
23.812
36.512
25.400
30.162
23.812
23.520
54.488
104.775
36.512
36.512
28.575
55.000
90.000
23.000
23.000
18.500
min-1
kgf
B
101.600
101.600
104.775
104.775
104.775
104.775
107.950
111.125
112.712
112.712
112.712
117.475
120.650
123.825
123.825
Limiting speeds
static
Cr
Cor
grease
oil
11 200
13 800
11 700
13 200
14 000
14 500
14 400
10 600
10 600
12 200
14 100
13 200
17 500
15 700
16 100
13 900
16 800
15 000
17 300
19 300
18 100
18 100
13 900
13 900
17 800
19 800
15 600
21 700
19 200
22 000
3 700
3 800
3 500
3 500
3 600
3 700
3 600
3 200
3 200
3 200
3 200
3 300
3 300
2 900
3 000
5 000
5 000
4 700
4 700
4 800
4 900
4 800
4 200
4 200
4 300
4 200
4 400
4 400
3 900
4 100
7 800
9 250
4 100
5 500
116
134
139
8 550
10 400
10 900
11 800
13 700
14 200
4 000
4 000
3 900
5 300
5 300
5 200
61.0
107
78.0
130
138
141
172
134
194
154
158
156
171
82.5
139
96.5
169
189
177
213
163
283
188
216
186
212
6 200
10 900
7 950
13 200
14 000
14 400
17 500
13 700
19 700
15 700
16 100
15 900
17 400
8 450
14 200
9 850
17 300
19 300
18 100
21 700
16 600
28 900
19 200
22 000
19 000
21 600
4 000
3 900
3 700
3 500
3 600
3 600
3 300
3 100
3 100
2 900
3 000
2 700
2 600
5 300
5 200
5 000
4 700
4 800
4 800
4 400
4 200
4 100
3 900
4 100
3 600
3 400
138
189
14 000
19 300
3 600
4 800
109
7 900
11 100
3 900
5 300
77.5
90.5
Note: 1. With regard to the chamfer dimensions on the back face of the inner and outer rings, installation dimensions ras and r1as are larger than the maximum value.
2. Bearing numbers marked " ＃ " designate J-series bearings. The accuracy of these bearings is listed in Table 6.6 on page A-42.
B-178
● Tapered Roller Bearings
r1a
Equivalent radial load
dynamic
Pr＝XFr＋YFa
Fa
Fa
≦e
Fr
Fr ＞e
X Y X
Y
1
0 0.4 Y2
static
Por＝0.5Fr＋YoFa
ra
φDa φdb
φda φDb
When Por＜Fr use Por＝Fr
For values of e, Y2 and Yo
see the table below.
Bearing numbers
Abutment and fillet dimensions
Load Constant
Axial
center
load factors
mm
mm
ras
r1as
max
max
3.5
0.8
0.8
6.4
3.5
3.5
3.5
3.5
3.5
3.5
3.5
3.5
3.5
3.5
2.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
da
db
Da
Db
4T-49585/49520
4T-529/522
4T-455/453X
4T-45284/45220
4T-HM807046/HM807010
4T-59200/59412
4T-537/532X
4T-HM907643/HM907614
4T-55200C/55443
4T-3975/3920
4T-39575/39520
4T-66200/66462
4T-619/612
4T-72200C/72487
4T-555/552A
66
59
60
71
70
68
65
74
71
68
68
71
67
77
66
59
58
59
59
63
61
59
65
65
61
61
65
61
67
62
88
89
92
93
89
92
94
91
92
99
101
100
105
102
109
96
95
98
99
100
99
100
105
106
106
107
111
110
116
116
4T-368S/362A
59
56
81
84
2
4T-28584/28521
4T-3767/3720
4T-33890/33821
65
63
61
58
59
59
83
82
85
87
88
90
4T-LM806649/LM806610
4T-33895/33822
4T-389A/382A
4T-45287/45220
4T-HM807049/HM807010
4T-539/532X
4T-621/612
4T-66584/66520
4T-5578/5535
4T-72212C/72487
4T-557S/552A
4T-HM911242/HM911210
4T-78214C/78551
63
63
61
62
73
68
70
75
73
79
71
79
79
60
60
60
62
63
61
63
68
67
67
65
74
77
80
86
89
93
89
94
105
105
106
102
109
109
117
4T-HM807048/HM807010
73
63
＃ 4T-JLM506849/JLM506810
63
61
kg
e
Y2
Yo
(approx.)
7.1
12.9
7.1
7.9
7.4
9.6
12.3
–7.21）
–7.41）
4.5
6.6
0.4
14.4
–1.51）
9.4
0.40
0.29
0.34
0.33
0.49
0.40
0.30
0.88
0.88
0.40
0.34
0.63
0.31
0.74
0.35
1.50
2.10
1.79
1.80
1.23
1.49
2.02
0.68
0.68
1.49
1.77
0.96
1.91
0.81
1.73
0.82
1.16
0.98
0.99
0.68
0.82
1.11
0.37
0.37
0.82
0.97
0.53
1.05
0.45
0.95
1.13
1.24
1.19
1.22
1.49
1.44
1.55
1.36
1.34
1.53
1.54
1.67
2.3
2.1
2.34
1.3
4.0
0.32
1.88
1.03
0.507
3.5
2.3
1.5
0.8
3.3
2.3
4.6
8.3
8.0
0.38
0.34
0.33
1.59
1.77
1.82
0.87
0.97
1.00
0.677
0.819
0.851
85
90
92
99
100
100
110
116
116
116
116
124
132
2.3
1.5
0.8
0.8
3.5
3.5
3.5
3.5
3.5
3.5
3.5
3.5
0.8
2
0.8
0.8
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
2.3
–2.21）
8.0
3.1
7.9
7.4
12.3
14.4
–1.81）
13.3
–1.51）
9.4
–5.21）
–8.51）
0.55
0.33
0.35
0.33
0.49
0.30
0.31
0.67
0.36
0.74
0.35
0.82
0.87
1.10
1.82
1.69
1.80
1.23
2.02
1.91
0.90
1.67
0.81
1.73
0.73
0.69
0.60
1.00
0.93
0.99
0.68
1.11
1.05
0.50
0.92
0.45
0.95
0.40
0.38
0.437
0.824
0.633
1.17
1.41
1.47
2.21
1.79
2.64
2.03
2.26
2.27
2.77
89
100
3.5
3.3
7.4
0.49
1.23
0.68
1.40
82
86
1.5
0.5
2.8
0.40
1.49
0.82
0.558
1）" − " means that load center at outside on end of inner ring.
B-179
a
Mass
● Tapered Roller Bearings
Inch series
J series
T
r1
C
r
B
φd
φD
a
d 55.000 ∼ 60.000mm
Boundary dimensions
Basic load ratings
static
dynamic
dynamic
mm
d
D
T
kN
B
C
Cr
Limiting speeds
static
min-1
kgf
Cor
Cr
Cor
grease
oil
55.000
95.000
96.838
110.000
29.000
21.000
39.000
29.000
21.946
39.000
23.500
15.875
32.000
107
78.0
173
144
96.5
219
10 900
7 950
17 600
14 700
9 850
22 400
3 800
3 700
3 500
5 100
5 000
4 600
55.562
97.630
123.825
127.000
24.608
36.512
36.512
24.608
32.791
36.512
19.446
25.400
26.988
88.5
154
163
128
188
228
9 000
15 700
16 600
13 000
19 200
23 300
3 700
2 900
2 900
4 900
3 900
3 800
55.575
96.838
21.000
21.946
15.875
78
96.5
7 950
9 850
3 700
5 000
57.150
96.838
96.838
96.838
96.838
97.630
104.775
104.775
104.775
107.950
110.000
110.000
112.712
112.712
112.712
117.475
117.475
120.650
123.825
123.825
140.030
21.000
21.000
21.000
21.000
24.608
30.162
30.162
30.162
27.783
22.000
27.795
30.162
30.162
30.162
30.162
33.338
41.275
36.512
38.100
36.512
21.946
21.946
21.946
21.946
24.608
29.317
29.317
30.958
29.317
21.996
29.317
30.048
30.162
30.162
30.162
31.750
41.275
32.791
36.678
33.236
15.875
15.875
15.875
15.875
19.446
24.605
24.605
23.812
22.225
18.824
27.000
23.812
23.812
23.812
23.812
23.812
31.750
25.400
30.162
23.520
78
78
78
78
88.5
115
115
130
115
89.5
115
119
138
138
117
130
172
154
158
171
96.5
96.5
96.5
96.5
128
148
148
169
148
120
148
174
195
195
175
153
213
188
216
212
7 950
7 950
7 950
7 950
9 000
11 700
11 700
13 200
11 700
9 150
11 700
12 200
14 100
14 100
11 900
13 200
17 500
15 700
16 100
17 400
9 850
9 850
9 850
9 850
13 000
15 000
15 000
17 300
15 000
12 300
15 000
17 800
19 800
19 800
17 900
15 600
21 700
19 200
22 000
21 600
3 700
3 700
3 700
3 700
3 700
3 500
3 500
3 500
3 500
3 200
3 500
3 200
3 200
3 200
3 000
3 300
3 300
2 900
3 000
2 600
5 000
5 000
5 000
5 000
4 900
4 700
4 700
4 700
4 700
4 300
4 700
4 300
4 200
4 200
4 000
4 400
4 400
3 900
4 100
3 400
57.531
96.838
21.000
21.946
15.875
78.0
96.5
7 950
9 850
3 700
5 000
59.972
122.238
33.338
31.750
23.812
134
163
13 700
16 600
3 100
4 200
59.987
146.050
41.275
39.688
25.400
199
234
20 300
23 900
2 400
3 200
60.000
95.000
107.950
24.000
25.400
24.000
25.400
19.000
19.050
122
140
8 500
9 350
12 400
14 200
3 700
3 200
4 900
4 300
83.0
91.5
Note: 1. Chamfer dimensions on the back face of the inner and outer rings of the bearing are larger than maximum values for installation dimensions ras and r1as.
2. As for the maximum value for inner ring bore diameters of bearings whose bearing numbers are marked with "†" (inner ring), the precision class is an integer for
class 4 and class 2 bearings only.
B-180
● Tapered Roller Bearings
r1a
Equivalent radial load
dynamic
Pr＝XFr＋YFa
Fa
Fa
≦e
Fr
Fr ＞e
X Y X
Y
1
0 0.4 Y2
static
Por＝0.5Fr＋YoFa
ra
φDa φdb
φda φDb
When Por＜Fr use Por＝Fr
For values of e, Y2 and Yo
see the table below.
Bearing numbers
Abutment and fillet dimensions
Load Constant
Axial
center
load factors
mm
mm
Mass
kg
ras
r1as
max
max
a
e
Y2
Yo
(approx.)
da
db
Da
Db
＃ 4T-JM207049/JM207010
4T-385/382A
＃ 4T-JH307749/JH307710
64
65
71
62
61
64
85
89
97
91
92
104
1.5
2.3
3
2.5
0.8
2.5
7.6
3.1
11.7
0.33
0.35
0.35
1.79
1.69
1.73
0.99
0.93
0.95
0.82
0.616
1.71
4T-28680/28622
4T-72218C/72487
4T-HM813840/HM813810
68
80
76
62
67
70
88
102
111
92
116
121
3.5
3.5
3.5
0.8
3.3
3.3
3.3
0.40
–1.51） 0.74
3.7
0.50
1.49
0.81
1.20
0.82
0.45
0.66
0.774
1.99
2.34
4T-389/382A
65
61
89
92
2.3
0.8
3.1
0.35
1.69
0.93
0.608
4T-387/382A
4T-387A/382A
4T-387AS/382A
4T-387S/382A
4T-28682/28622
4T-462/453X
4T-469/453X
4T-45289/45220
4T-469/453A
4T-390/394A
4T-469/454
4T-3979/3920
4T-39580/39520
4T-39581/39520
4T-33225/33462
4T-66225/66462
4T-623/612
4T-72225C/72487
4T-555S/552A
4T-78225/78551
66
69
72
63
70
67
70
65
70
70
70
72
72
81
74
76
72
81
73
83
62
62
62
62
63
63
63
65
63
66
63
66
66
66
68
69
66
67
67
77
89
89
89
89
88
92
92
93
97
101
96
99
101
101
104
100
105
102
109
117
92
92
92
92
92
98
98
99
100
104
100
106
107
107
112
111
110
116
116
132
2.3
3.5
5
0.8
3.5
2.3
3.5
0.8
3.5
2.3
3.5
3.5
3.5
8
3.5
3.5
3.5
3.5
3.5
3.5
0.8
0.8
0.8
0.8
0.8
3.3
3.3
3.3
0.8
1.3
2
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
2.3
3.1
3.1
3.1
3.1
3.3
7.1
7.1
7.9
7.1
0.7
7.1
4.5
6.6
6.6
2.6
0.4
14.4
–1.51）
9.4
–8.51）
0.35
0.35
0.35
0.35
0.40
0.34
0.34
0.33
0.34
0.40
0.34
0.40
0.34
0.34
0.44
0.63
0.31
0.74
0.35
0.87
1.69
1.69
1.69
1.69
1.49
1.79
1.79
1.80
1.79
1.49
1.79
1.49
1.77
1.77
1.38
0.96
1.91
0.81
1.73
0.69
0.93
0.93
0.93
0.93
0.82
0.98
0.98
0.99
0.98
0.82
0.98
0.82
0.97
0.97
0.76
0.53
1.05
0.45
0.95
0.38
0.583
0.581
0.576
0.585
0.747
1.06
1.06
1.1
1.11
0.954
1.24
1.4
1.41
1.4
1.58
1.54
2.12
1.96
2.18
2.69
4T-388A/382A
69
63
89
92
3.5
0.8
3.1
0.35
1.69
0.93
0.575
4T-66589/66520
74
73
105
116
0.8
3.3
–1.81） 0.67
0.90
0.50
1.66
4T-H913840†/H913810
88
82
124
138
3.5
3.3
–4.31） 0.78
0.77
0.42
3.22
75
75
66
68
85
96
91
103
5
3.5
2.5
3.3
1.49
1.31
0.82
0.72
0.606
0.992
＃ 4T-JLM508748/JLM508710
4T-29580/29520
3.0
0.6
0.40
0.46
Note: 3. Bearing numbers marked " ＃ " designate J-series bearings. The tolerances of these bearings is listed in Table 6.6 on page A-42.
1）"−" means that load center at outside on end of inner ring.
B-181
● Tapered Roller Bearings
Inch series
J series
T
r1
C
r
B
φd
φD
a
d 60.000 ∼ 65.000mm
Boundary dimensions
Basic load ratings
static
dynamic
dynamic
mm
d
D
T
kN
B
C
Cr
Limiting speeds
static
min-1
kgf
Cor
Cr
Cor
grease
oil
60.000
110.000
130.000
22.000
34.100
21.996
30.924
18.824
22.650
89.5
156.0
120
186
9 150
15 900
12 300
19 000
3 200
2 700
4 300
3 600
60.325
100.000
112.712
122.238
122.238
123.825
127.000
127.000
130.175
25.400
30.162
38.100
43.658
38.100
36.512
44.450
36.512
25.400
30.048
38.354
43.764
36.678
36.512
44.450
33.338
19.845
23.812
29.718
36.512
30.162
26.988
34.925
23.812
90.5
119
187
194
158
163
203
156
134
174
244
283
216
228
263
186
9 200
12 200
19 100
19 700
16 100
16 600
20 700
15 900
13 600
17 800
24 900
28 900
22 000
23 300
26 800
19 000
3 500
3 200
3 100
3 100
3 000
2 900
3 100
2 700
4 700
4 300
4 100
4 100
4 100
3 800
4 200
3 600
61.912
110.000
136.525
146.050
22.000
46.038
41.275
21.996
46.038
39.688
18.824
36.512
25.400
89.5
224
199
120
355
234
9 150
22 800
20 300
12 300
36 500
23 900
3 200
2 600
2 400
4 300
3 500
3 200
61.976
101.600
24.608
24.608
19.845
90.5
134
9 200
13 600
3 500
4 700
62.738
101.600
25.400
25.400
19.845
90.5
134
9 200
13 600
3 500
4 700
63.500
94.458
107.950
107.950
110.000
110.000
112.712
112.712
120.000
120.000
122.238
122.238
123.825
127.000
127.000
136.525
140.030
19.050
25.400
25.400
22.000
25.400
30.162
30.162
29.794
29.794
38.100
43.658
38.100
36.512
36.512
41.275
36.512
19.050
25.400
25.400
21.996
25.400
30.048
30.162
29.007
29.007
38.354
43.764
36.678
36.170
36.512
41.275
33.236
15.083
19.050
19.050
18.824
19.050
23.812
23.812
24.237
24.237
29.718
36.512
30.162
28.575
26.988
31.750
23.520
60.5
91.5
91.5
89.5
91.5
119
138
128
128
187
194
158
163
163
194
171
103
140
140
120
140
174
195
177
177
244
283
216
229
228
262
212
6 150
9 350
9 350
9 150
9 350
12 200
14 100
13 000
13 000
19 100
19 700
16 100
16 600
16 600
19 800
17 400
10 500
14 200
14 200
12 300
14 200
17 800
19 800
18 100
18 100
24 900
28 900
22 000
23 300
23 300
26 700
21 600
3 600
3 200
3 200
3 200
3 200
3 200
3 200
3 000
3 000
3 100
3 100
3 000
2 900
2 900
2 800
2 600
4 800
4 300
4 300
4 300
4 300
4 300
4 200
4 000
4 000
4 100
4 100
4 100
3 800
3 800
3 800
3 400
65.000
105.000
110.000
24.000
28.000
23.000
28.000
18.500
22.500
85.0
119
117
174
8 700
12 200
11 900
17 800
3 300
3 200
4 500
4 300
Note: 1. Chamfer dimensions on the back face of the inner and outer rings of the bearing are larger than maximum values for installation dimensions ras and r1as.
2. Bearing numbers marked " ＃ " designate J-series bearings. The accuracy of these bearings is listed in Table 6.6 on page A-42.
B-182
● Tapered Roller Bearings
r1a
Equivalent radial load
dynamic
Pr＝XFr＋YFa
Fa
Fa
≦e
Fr
Fr ＞e
X Y X
Y
1
0 0.4 Y2
static
Por＝0.5Fr＋YoFa
ra
φDa φdb
φda φDb
When Por＜Fr use Por＝Fr
For values of e, Y2 and Yo
see the table below.
Bearing numbers
Abutment and fillet dimensions
Load Constant
Axial
center
load factors
mm
mm
ras
r1as
max
max
da
db
Da
Db
4T-397/394A
＃ 4T-JHM911244/JHM911211
69
84
68
74
101
109
104
123
0.8
3.5
1.3
3.3
4T-28985/28921
4T-3980/3920
4T-HM212044/HM212011
4T-5583/5535
4T-558/552A
4T-HM813841/HM813810
4T-65237/65500
4T-HM911245/HM911210
73
75
85
78
73
80
82
87
67
68
70
72
69
73
71
74
89
99
108
106
109
111
107
109
96
106
116
116
116
121
119
124
3.5
3.5
8
3.5
2.3
3.5
3.5
5
4T-392/394A
4T-H715334/H715311
4T-H913842/H913810
70
86
90
69
79
82
101
118
124
104
132
138
4T-28990/28920
72
68
90
4T-28995/28920
75
69
4T-L610549/L610510
4T-29585/29520
4T-29586/29520
4T-390A/394A
4T-29585/29521
4T-3982/3920
4T-39585/39520
4T-477/472
4T-483/472
4T-HM212046/HM212011
4T-5584/5535
4T-559/552A
4T-565/563
4T-HM813842/HM813810
4T-639/632
4T-78250/78551
71
77
73
73
77
77
77
73
78
80
81
78
80
82
81
85
＃ 4T-JLM710949/JLM710910
＃ 4T-JM511946/JM511910
77
78
Yo
(approx.)
0.7
0.40
–7.61） 0.82
1.49
0.73
0.82
0.40
0.91
2.01
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
2.5
4.5
11.1
13.3
9.4
3.7
9.3
–5.21）
0.43
0.40
0.34
0.36
0.35
0.50
0.49
0.82
1.41
1.49
1.78
1.67
1.73
1.20
1.23
0.73
0.78
0.82
0.98
0.92
0.95
0.66
0.68
0.40
0.772
1.33
2.02
2.44
2.1
2.21
2.65
2.12
0.8
3.5
3.5
1.3
3.3
3.3
0.7
0.40
8.7
0.47
–4.31） 0.78
1.49
1.27
0.77
0.82
0.70
0.42
0.879
3.47
3.17
97
2
3.3
1.7
0.43
1.41
0.78
0.768
90
97
3.5
3.3
2.5
0.43
1.41
0.78
0.764
69
71
71
70
71
71
71
72
72
73
75
72
73
76
74
79
86
96
96
101
99
99
101
107
107
108
106
109
112
111
118
117
91
103
103
104
104
106
107
114
114
116
116
116
120
121
125
132
1.5
3.5
1.5
1.5
3.5
3.5
3.5
0.8
3.5
3.5
3.5
3.5
3.5
3.5
3.5
2.3
1.5
3.3
3.3
1.3
1.3
3.3
3.3
2
2
3.3
3.3
3.3
3.3
3.3
3.3
2.3
–0.61）
0.6
0.6
0.7
0.6
4.5
6.6
3.9
3.9
11.1
13.3
9.4
8.3
3.7
11.4
–8.51）
0.42
0.46
0.46
0.40
0.46
0.40
0.34
0.38
0.38
0.34
0.36
0.35
0.36
0.50
0.36
0.87
1.41
1.31
1.31
1.49
1.31
1.49
1.77
1.56
1.56
1.78
1.67
1.73
1.65
1.20
1.66
0.69
0.78
0.72
0.72
0.82
0.72
0.82
0.97
0.86
0.86
0.98
0.92
0.95
0.91
0.66
0.91
0.38
0.449
0.924
0.929
0.851
0.982
1.26
1.27
1.49
1.48
1.95
2.34
2.01
2.11
2.12
2.85
2.54
71
72
96
99
101
105
3
3
1
2.5
0.3
3.4
0.45
0.40
1.32
1.49
0.73
0.82
0.742
1.08
B-183
e
kg
Y2
1）"−" means that load center at outside on end of inner ring.
a
Mass
● Tapered Roller Bearings
Inch series
J series
T
r1
C
r
B
φd
φD
a
d 65.000 ∼ 70.000mm
Boundary dimensions
Basic load ratings
static
dynamic
dynamic
mm
d
D
T
kN
Limiting speeds
static
min-1
kgf
B
C
Cr
Cor
Cr
Cor
grease
oil
65.000
120.000
39.000
38.500
32.000
185
248
18 800
25 300
3 100
4 100
65.088
135.755
53.975
56.007
44.450
278
380
28 300
38 500
2 900
3 800
66.675
103.213
107.950
110.000
112.712
112.712
112.712
122.238
123.825
127.000
130.175
135.755
136.525
136.525
17.602
25.400
22.000
30.162
30.162
30.162
38.100
38.100
36.512
41.275
53.975
41.275
41.275
17.602
25.400
21.996
30.048
30.048
30.162
38.354
36.678
36.512
41.275
56.007
41.275
41.275
11.989
19.050
18.824
23.812
23.812
23.812
29.718
30.162
26.988
31.750
44.450
31.750
31.750
60.0
91.5
89.5
119
119
138
187
158
163
194
278
194
226
78.0
140
120
174
174
195
244
216
228
262
380
262
293
6 100
9 350
9 150
12 200
12 200
14 100
19 100
16 100
16 600
19 800
28 300
19 800
23 100
8 000
14 200
12 300
17 800
17 800
19 800
24 900
22 000
23 300
26 700
38 500
26 700
29 900
3 300
3 200
3 200
3 200
3 200
3 200
3 100
3 000
2 900
2 800
2 900
2 800
2 700
4 400
4 300
4 300
4 300
4 300
4 200
4 100
4 100
3 800
3 800
3 800
3 800
3 700
68.262
110.000
120.000
123.825
136.525
136.525
22.000
29.794
38.100
41.275
46.038
21.996
29.007
36.678
41.275
46.038
18.824
24.237
30.162
31.750
36.512
89.5
128
158
226
224
120
177
216
293
355
9 150
13 000
16 100
23 100
22 800
12 300
18 100
22 000
29 900
36 500
3 200
3 000
3 000
2 700
2 600
4 300
4 000
4 100
3 700
3 500
69.850
112.712
117.475
120.000
120.000
120.650
127.000
136.525
146.050
150.089
168.275
25.400
30.162
29.794
32.545
25.400
36.512
41.275
41.275
44.450
53.975
25.400
30.162
29.007
32.545
25.400
36.170
41.275
41.275
46.672
56.363
19.050
23.812
24.237
26.195
19.050
28.575
31.750
31.750
36.512
41.275
95.5
117
128
147
95.5
163
194
206
261
340
151
175
177
214
151
229
262
295
360
460
9 750
11 900
13 000
15 000
9 750
16 600
19 800
21 000
26 600
34 500
15 400
17 900
18 100
21 800
15 400
23 300
26 700
30 000
37 000
46 500
3 100
3 000
3 000
3 000
3 100
2 900
2 800
2 500
2 400
2 200
4 100
4 000
4 000
4 000
4 100
3 800
3 800
3 300
3 200
3 000
69.952
121.442
24.608
23.012
17.462
91.0
127
9 300
13 000
2 900
3 800
70.000
110.000
115.000
26.000
29.000
25.000
29.000
20.500
23.000
97.0
124
150
171
9 900
12 700
15 300
17 500
3 200
3 100
4 200
4 100
Note: 1. Chamfer dimensions on the back face of the inner and outer rings of the bearing are larger than maximum values for installation dimensions ras and r1as.
2. Bearing numbers marked " ＃ " designate J-series bearings. The accuracy of these bearings is listed in Table 6.6 on page A-42.
B-184
● Tapered Roller Bearings
r1a
Equivalent radial load
dynamic
Pr＝XFr＋YFa
Fa
Fa
≦e
Fr
Fr ＞e
X Y X
Y
1
0 0.4 Y2
static
Por＝0.5Fr＋YoFa
ra
φDa φdb
φda φDb
When Por＜Fr use Por＝Fr
For values of e, Y2 and Yo
see the table below.
Bearing numbers
Abutment and fillet dimensions
Load Constant
Axial
center
load factors
mm
mm
Mass
kg
ras
r1as
max
max
a
e
Y2
Yo
(approx.)
da
db
Da
Db
80
74
107
114
3
2.5
10.9
0.34
1.78
0.98
1.90
4T-6379/6320
84
77
117
126
3.5
3.3
18.8
0.32
1.85
1.02
3.71
4T-L812148/L812111
4T-29590/29520
4T-395A/394A
4T-3984/3925
4T-3994/3920
4T-39590/39520
4T-HM212049/HM212010
4T-560/552A
4T-HM813844/HM813810
4T-641/633
4T-6386/6320
4T-641/632
4T-H414242/H414210
74
80
73
80
84
80
82
81
85
83
87
83
85
72
73
73
74
74
74
75
75
78
77
77
77
81
96
96
101
101
99
101
110
109
111
116
117
118
121
99
103
104
106
106
107
116
116
121
124
126
125
129
1.5
3.5
0.8
3.5
5.5
3.5
3.5
3.5
3.5
3.5
4.3
3.5
3.5
0.8
3.3
1.3
0.8
3.3
3.3
1.5
3.3
3.3
3.3
3.3
3.3
3.3
–3.71）
0.6
0.7
4.5
4.5
6.6
11.1
9.4
3.7
11.4
18.8
11.4
11.0
0.49
0.46
0.40
0.40
0.40
0.34
0.34
0.35
0.50
0.36
0.32
0.36
0.36
1.23
1.31
1.49
1.49
1.49
1.77
1.78
1.73
1.20
1.66
1.85
1.66
1.67
0.68
0.72
0.82
0.82
0.82
0.97
0.98
0.95
0.66
0.91
1.02
0.91
0.92
0.48
0.86
0.796
1.19
1.18
1.19
1.86
1.92
2.03
2.41
3.64
2.74
2.75
4T-399A/394A
4T-480/472
4T-560S/552A
4T-H414245/H414210
4T-H715343/H715311
78
82
83
86
90
74
75
76
82
84
101
107
109
121
118
104
114
116
129
132
2.3
3.5
3.5
3.5
3.5
1.3
2
3.3
3.3
3.3
0.7
3.9
9.4
11.0
8.7
0.40
0.38
0.35
0.36
0.47
1.49
1.56
1.73
1.67
1.27
0.82
0.86
0.95
0.92
0.70
0.764
1.37
1.87
2.7
3.24
4T-29675/29620
4T-33275/33462
4T-482/472
4T-47487/47420
4T-29675/29630
4T-566/563
4T-643/632
4T-655/653
4T-745A/742
4T-835/832
80
84
83
84
80
85
86
88
88
91
77
77
77
78
77
78
80
82
82
84
101
104
107
107
104
112
118
131
134
149
109
112
114
114
113
120
125
139
142
155
1.5
3.5
3.5
3.5
1.5
3.5
3.5
3.5
3.5
3.5
3.3
3.3
2
3.3
3.3
3.3
3.3
3.3
3.3
3.3
–0.91）
2.6
3.9
6.1
–0.91）
8.3
11.4
8.0
12.0
18.5
0.49
0.44
0.38
0.36
0.49
0.36
0.36
0.41
0.33
0.30
1.23
1.38
1.56
1.67
1.23
1.65
1.66
1.47
1.84
2.00
0.68
0.76
0.86
0.92
0.68
0.91
0.91
0.81
1.01
1.10
0.949
1.28
1.33
1.47
1.17
1.92
2.63
3.28
3.92
6.13
4T-34274/34478
81
78
110
116
2
2
–1.21） 0.45
1.33
0.73
1.11
78
83
77
77
98
103
105
110
1
3
2.5
2.5
–0.31） 0.49
2.5
0.43
1.23
1.39
0.68
0.77
0.889
1.13
＃ 4T-JH211749/JH211710
＃ 4T-JLM813049/JLM813010
＃ 4T-JM612949/JM612910
1）"−" means that load center at outside on end of inner ring.
B-185
● Tapered Roller Bearings
Inch series
J series
T
r1
C
r
B
φd
φD
a
d 70.000 ∼ 76.200mm
Boundary dimensions
Basic load ratings
static
dynamic
dynamic
mm
d
D
T
kN
Limiting speeds
static
min-1
kgf
B
C
Cr
Cor
Cr
Cor
grease
oil
70.000
120.000
150.000
29.794
41.275
29.007
39.688
24.237
25.400
128
199
177
234
13 000
20 300
18 100
23 900
3 000
2 400
4 000
3 200
71.438
117.475
120.000
127.000
136.525
136.525
136.525
30.162
32.545
36.512
41.275
41.275
46.038
30.162
32.545
36.170
41.275
41.275
46.038
23.812
26.195
28.575
31.750
31.750
36.512
117
147
163
194
226
224
175
214
229
262
293
355
11 900
15 000
16 600
19 800
23 100
22 800
17 900
21 800
23 300
26 700
29 900
36 500
3 000
3 000
2 900
2 800
2 700
2 600
4 000
4 000
3 800
3 800
3 700
3 500
73.025
112.712
117.475
127.000
139.992
149.225
150.089
25.400
30.162
36.512
36.512
53.975
44.450
25.400
30.162
36.170
36.098
54.229
46.672
19.050
23.812
28.575
28.575
44.450
36.512
95.5
117
163
178
287
261
151
175
229
265
410
360
9 750
11 900
16 600
18 100
29 300
26 600
15 400
17 900
23 300
27 100
41 500
37 000
3 100
3 000
2 900
2 600
2 500
2 400
4 100
4 000
3 800
3 400
3 400
3 200
73.817
112.712
127.000
25.400
36.512
25.400
36.170
19.050
28.575
95.5
163
151
229
9 750
16 600
15 400
23 300
3 100
2 900
4 100
3 800
74.612
139.992
36.512
36.098
28.575
178
265
18 100
27 100
2 600
3 400
75.000
115.000
120.000
145.000
25.000
31.000
51.000
25.000
29.500
51.000
19.000
25.000
42.000
94.5
131
287
143
197
410
9 650
13 300
29 300
14 600
20 100
41 500
3 000
2 900
2 500
4 000
3 900
3 400
76.200
109.538
121.442
121.442
127.000
133.350
133.350
135.733
136.525
139.992
139.992
146.050
149.225
150.089
19.050
24.608
24.608
30.162
33.338
39.688
44.450
30.162
36.512
36.512
41.275
53.975
44.450
19.050
23.012
23.012
31.000
33.338
39.688
46.100
29.769
36.098
36.098
41.275
54.229
46.672
15.083
17.462
17.462
22.225
26.195
32.545
34.925
22.225
28.575
28.575
31.750
44.450
36.512
63.0
91.0
91.0
135
153
177
211
129
178
178
206
287
261
115
127
127
194
235
305
330
189
265
265
295
410
360
6 450
9 300
9 300
13 800
15 600
18 000
21 600
13 200
18 100
18 100
21 000
29 300
26 600
11 700
13 000
13 000
19 800
24 000
31 000
34 000
19 300
27 100
27 100
30 000
41 500
37 000
3 100
2 900
2 900
2 800
2 600
2 600
2 700
2 600
2 600
2 600
2 500
2 500
2 400
4 100
3 800
3 800
3 700
3 500
3 500
3 500
3 500
3 400
3 400
3 300
3 400
3 200
Note: 1. Chamfer dimensions on the back face of the inner and outer rings of the bearing are larger than maximum values for installation dimensions ras and r1as.
2. Bearing numbers marked " ＃ " designate J-series bearings. The accuracy of these bearings is listed in Table 6.6 on page A-42.
B-186
● Tapered Roller Bearings
r1a
Equivalent radial load
dynamic
Pr＝XFr＋YFa
Fa
Fa
≦e
Fr
Fr ＞e
X Y X
Y
1
0 0.4 Y2
static
Por＝0.5Fr＋YoFa
ra
φDa φdb
φda φDb
When Por＜Fr use Por＝Fr
For values of e, Y2 and Yo
see the table below.
Bearing numbers
Abutment and fillet dimensions
Load Constant
Axial
center
load factors
mm
mm
ras
r1as
max
max
da
db
Da
Db
4T-484/472
＃ 4T-JH913848/JH913811
80
92
77
82
107
126
114
146
2
2
2
3.3
4T-33281/33462
4T-47490/47420
4T-567A/563
4T-644/632
4T-H414249/H414210
4T-H715345/H715311
85
86
86
87
89
93
79
79
80
81
83
87
104
107
112
118
121
118
112
114
120
125
129
132
3.5
3.5
3.5
3.5
3.5
3.5
4T-29685/29620
4T-33287/33462
4T-567/563
4T-576/572
4T-6460/6420
4T-744/742
86
87
88
90
93
91
80
80
81
83
87
85
101
104
112
125
129
134
109
112
120
133
140
142
4T-29688/29620
4T-568/563
83
83
80
82
101
112
4T-577/572
91
85
＃ 4T-JLM714149/JLM714110
＃ 4T-JM714249/JM714210
＃ 4T-JH415647/JH415610
87
88
94
84
86
89
90
97
93
94
92
92
99
93
108
93
4T-L814749/L814710
4T-34300/34478
4T-34301/34478
4T-42687/42620
4T-47678/47620
4T-HM516442/HM516410
4T-5760/5735
4T-495A/493
4T-575/572
4T-575S/572
4T-659/653
4T-6461A/6420
4T-748S/742
Yo
(approx.)
3.9
0.38
–4.31） 0.78
1.56
0.77
0.86
0.42
1.33
3.08
3.3
3.3
3.3
3.3
3.3
3.3
2.6
6.1
8.3
11.4
11.0
8.7
0.44
0.36
0.36
0.36
0.36
0.47
1.38
1.67
1.65
1.66
1.67
1.27
0.76
0.92
0.91
0.91
0.92
0.70
1.24
1.42
1.87
2.57
2.58
3.11
3.5
3.5
3.5
3.5
3.5
3.5
3.3
3.3
3.3
3.3
3.3
3.3
–0.91）
2.6
8.3
5.5
14.8
12.0
0.49
0.44
0.36
0.40
0.36
0.33
1.23
1.38
1.65
1.49
1.66
1.84
0.68
0.76
0.91
0.82
0.91
1.01
0.873
1.19
1.82
2.53
4.42
3.79
109
120
1.5
0.8
3.3
3.3
–0.91） 0.49
8.3
0.36
1.23
1.65
0.68
0.91
0.86
1.80
125
133
3.5
3.3
0.40
1.49
0.82
2.48
81
83
89
104
108
129
110
115
139
3
3
3
2.5
2.5
2.5
–0.31） 0.46
1.9
0.44
14.1
0.36
1.31
1.35
1.66
0.72
0.74
0.91
0.875
1.29
3.81
82
83
83
84
85
87
88
86
86
86
87
89
87
100
110
110
114
119
118
119
122
125
125
131
129
134
105
116
116
121
128
128
130
130
133
133
139
140
142
1.5
2
3.5
3.5
6.4
3.5
3.5
3.5
3.5
6.8
3.5
9.7
3.5
1.5
2
2
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
–5.01）
–1.21）
–1.21）
2.8
3.9
7.5
11.0
0.7
5.5
5.5
8.0
14.8
12.0
1.20
1.33
1.33
1.43
1.48
1.49
1.48
1.35
1.49
1.49
1.47
1.66
1.84
0.66
0.73
0.73
0.79
0.82
0.82
0.81
0.74
0.82
0.82
0.81
0.91
1.01
0.579
0.982
0.977
1.46
1.92
2.43
2.75
1.83
2.43
2.41
3.04
4.23
3.66
B-187
5.5
e
kg
Y2
1）"−" means that load center at outside on end of inner ring.
a
Mass
0.50
0.45
0.45
0.42
0.40
0.40
0.41
0.44
0.40
0.40
0.41
0.36
0.33
● Tapered Roller Bearings
Inch series
J series
T
r1
C
r
B
φd
φD
a
d 76.200 ∼ 83.345mm
Boundary dimensions
Basic load ratings
static
dynamic
dynamic
mm
d
D
T
kN
Limiting speeds
static
min-1
kgf
B
C
Cr
Cor
Cr
Cor
grease
oil
76.200
149.225
161.925
180.975
190.500
53.975
53.975
53.975
57.150
54.229
55.100
53.183
57.531
44.450
42.862
35.720
46.038
287
310
325
445
410
460
415
610
29 300
31 500
33 000
45 000
41 500
47 000
42 500
62 000
2 500
2 300
1 900
1 900
3 400
3 000
2 600
2 600
77.788
117.475
121.442
127.000
136.525
136.525
25.400
24.608
30.162
30.162
46.038
25.400
23.012
31.000
29.769
46.038
19.050
17.462
22.225
22.225
36.512
99.5
91.0
135
129
224
162
127
194
189
355
10 200
9 300
13 800
13 200
22 800
16 500
13 000
19 800
19 300
36 500
2 900
2 900
2 800
2 600
2 600
3 900
3 800
3 700
3 500
3 500
79.375
146.050
161.925
190.500
41.275
47.625
57.150
41.275
48.260
57.531
31.750
38.100
46.038
206
270
445
295
385
610
21 000
27 500
45 000
30 000
39 000
62 000
2 500
2 300
1 900
3 300
3 100
2 600
80.000
130.000
35.000
34.000
28.500
166
249
16 900
25 400
2 700
3 600
80.962
133.350
136.525
139.992
150.089
33.338
30.162
36.512
44.450
33.338
29.769
36.098
46.672
26.195
22.225
28.575
36.512
153
129
178
261
235
189
265
360
15 600
13 200
18 100
26 600
24 000
19 300
27 100
37 000
2 600
2 600
2 600
2 400
3 500
3 500
3 400
3 200
82.550
125.412
133.350
133.350
136.525
139.992
139.992
146.050
150.089
152.400
152.400
161.925
161.925
168.275
25.400
33.338
39.688
30.162
36.512
36.512
41.275
44.450
39.688
41.275
47.625
53.975
53.975
25.400
33.338
39.688
29.769
36.098
36.098
41.275
46.672
36.322
41.275
48.260
55.100
56.363
19.845
26.195
32.545
22.225
28.575
28.575
31.750
36.512
30.162
31.750
38.100
42.862
41.275
102
153
177
129
178
178
206
261
180
206
270
310
340
163
235
305
189
265
265
295
360
279
295
385
460
460
10 400
15 600
18 000
13 200
18 100
18 100
21 000
26 600
18 300
21 000
27 500
31 500
34 500
16 600
24 000
31 000
19 300
27 100
27 100
30 000
37 000
28 400
30 000
39 000
47 000
46 500
2 700
2 600
2 600
2 600
2 600
2 600
2 500
2 400
2 300
2 500
2 300
2 300
2 200
3 600
3 500
3 500
3 500
3 400
3 400
3 300
3 200
3 100
3 300
3 100
3 000
3 000
83.345
125.412
125.412
125.412
25.400
25.400
25.400
25.400
25.400
25.400
19.845
19.845
19.845
102
102
102
163
163
163
10 400
10 400
10 400
16 600
16 600
16 600
2 700
2 700
2 700
3 600
3 600
3 600
Note: 1. Chamfer dimensions on the back face of the inner and outer rings of the bearing are larger than maximum values for installation dimensions ras and r1as.
2. As for the maximum value for inner and outer ring diameters of bearings whose bearing numbers are marked with "†" (inner ring) and "††" (outer ring), the precision
class is an integer for class 4 and class 2 bearings only.
B-188
● Tapered Roller Bearings
r1a
Equivalent radial load
dynamic
Pr＝XFr＋YFa
Fa
Fa
≦e
Fr
Fr ＞e
X Y X
Y
1
0 0.4 Y2
static
Por＝0.5Fr＋YoFa
ra
φDa φdb
φda φDb
When Por＜Fr use Por＝Fr
For values of e, Y2 and Yo
see the table below.
Bearing numbers
Abutment and fillet dimensions
Load Constant
Axial
center
load factors
mm
mm
ras
r1as
max
max
da
db
Da
Db
4T-6461/6420
4T-6576/6535
4T-H917840/H917810††
4T-HH221430/HH221410
96
99
110
101
89
92
100
95
129
141
152
171
140
154
170
179
3.5
3.5
3.5
3.5
3.3
3.3
3.3
3.3
4T-LM814849/LM814810
4T-34306/34478
4T-42690/42620
4T-495AS/493
4T-H715348/H715311
91
90
91
93
98
85
84
85
87
88
105
110
114
122
118
113
116
121
130
132
3.5
3.5
3.5
3.5
3.5
4T-661/653
4T-756A/752
4T-HH221431/HH221410
96
106
103
90
91
97
131
144
171
139
150
179
＃ 4T-JM515649/JM515610
94
88
117
4T-47681/47620
4T-496/493
4T-581/572
4T-740/742
95
95
96
101
89
89
90
91
4T-27687/27620
4T-47686/47620
4T-HM516448/HM516410
4T-495/493
4T-580/572
4T-582/572
4T-663/653
4T-749A/742
4T-595/592A
4T-663/652
4T-757/752
4T-6559C/6535
4T-842/832
96
97
105
97
98
104
99
99
100
99
100
104
101
4T-27689/27620
4T-27690/27620
4T-27691/27620
90
96
102
a
Mass
kg
e
Y2
Yo
(approx.)
14.8
12.8
–0.51）
14.4
0.36
0.40
0.73
0.33
1.66
1.50
0.82
1.79
0.91
0.82
0.45
0.99
4.26
5.44
6.57
8.69
3.3
2
3.3
3.3
3.3
–2.31）
–1.21）
2.8
0.7
8.7
0.51
0.45
0.42
0.44
0.47
1.18
1.33
1.43
1.35
1.27
0.65
0.73
0.79
0.74
0.70
0.932
0.943
1.41
1.78
2.84
3.5
8
3.5
3.3
3.3
3.3
8.0
12.0
14.4
0.41
0.34
0.33
1.47
1.76
1.79
0.81
0.97
0.99
2.91
4.55
8.52
125
3
2.5
4.9
0.39
1.54
0.85
1.73
119
122
125
134
128
130
133
142
3.5
3.5
3.5
5
3.3
3.3
3.3
3.3
3.9
0.7
5.5
12.0
0.40
0.44
0.40
0.33
1.48
1.35
1.49
1.84
0.82
0.74
0.82
1.01
1.78
1.69
2.26
3.43
89
90
92
90
91
91
92
93
93
92
94
98
94
115
119
118
122
125
125
131
134
135
134
144
141
149
120
128
128
130
133
133
139
142
144
141
150
154
155
3.5
3.5
6.8
3.5
3.5
6.8
3.5
3.5
3.5
3.5
3.5
3.5
3.5
1.5
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
–0.61）
3.9
7.5
0.7
5.5
5.5
8.0
12.0
2.6
8.0
12.0
12.8
18.5
0.42
0.40
0.40
0.44
0.40
0.40
0.41
0.33
0.44
0.41
0.34
0.40
0.30
1.44
1.48
1.49
1.35
1.49
1.49
1.47
1.84
1.36
1.47
1.76
1.50
2.00
0.79
0.82
0.82
0.74
0.82
0.82
0.81
1.01
0.75
0.81
0.97
0.82
1.10
1.07
1.72
2.16
1.64
2.2
2.19
2.78
3.37
3.02
3.15
4.42
5.09
5.46
90
90
90
115
115
115
120
120
120
0.8
3.5
6.4
1.5
1.5
1.5
–0.61） 0.42
–0.61） 0.42
–0.61） 0.42
1.44
1.44
1.44
0.79
0.79
0.79
1.06
1.05
1.04
Note: 3. Bearing numbers marked " ＃ " designate J-series bearings. The tolerances of these bearings is listed in Table 6.6 on page A-42.
1）" − " means that load center at outside on end of inner ring.
B-189
● Tapered Roller Bearings
Inch series
J series
T
r1
C
r
B
φd
φD
a
d 84.138 ∼ 95.000mm
Boundary dimensions
Basic load ratings
static
dynamic
dynamic
mm
d
D
T
kN
Limiting speeds
static
min-1
kgf
B
C
Cr
Cor
Cr
Cor
grease
oil
84.138
136.525
30.162
29.769
22.225
129
189
13 200
19 300
2 600
3 500
85.000
130.000
140.000
30.000
39.000
29.000
38.000
24.000
31.500
135
197
214
297
13 700
20 100
21 900
30 500
2 600
2 500
3 500
3 400
85.026
150.089
44.450
46.672
36.512
261
360
26 600
37 000
2 400
3 200
85.725
133.350
142.138
146.050
152.400
161.925
30.162
42.862
41.275
39.688
47.625
29.769
42.862
41.275
36.322
48.260
22.225
34.133
31.750
30.162
38.100
129
216
206
180
270
189
350
295
279
385
13 200
22 000
21 000
18 300
27 500
19 300
35 500
30 000
28 400
39 000
2 600
2 500
2 500
2 300
2 300
3 500
3 300
3 300
3 100
3 100
87.960
148.430
28.575
28.971
21.433
138
215
14 100
21 900
2 300
3 100
88.900
121.442
123.825
148.430
152.400
161.925
161.925
168.275
15.083
20.638
28.575
39.688
47.625
53.975
53.975
15.083
20.638
28.971
36.322
48.260
55.100
56.363
11.112
16.670
21.433
30.162
38.100
42.862
41.275
56.5
80.0
138
180
270
310
340
88.0
141
215
279
385
460
460
5 750
8 150
14 100
18 300
27 500
31 500
34 500
9 000
14 400
21 900
28 400
39 000
47 000
46 500
2 700
2 700
2 300
2 300
2 300
2 300
2 200
3 600
3 500
3 100
3 100
3 100
3 000
3 000
89.974
146.975
40.000
40.000
32.500
227
340
23 200
34 500
2 400
3 200
90.000
145.000
155.000
190.000
35.000
44.000
50.800
34.000
44.000
46.038
27.000
35.500
31.750
189
270
281
279
385
365
19 300
27 500
28 700
28 400
39 000
37 000
2 400
2 300
1 800
3 200
3 100
2 400
90.488
161.925
47.625
48.260
38.100
270
385
27 500
39 000
2 300
3 100
92.075
146.050
152.400
168.275
33.338
39.688
41.275
34.925
36.322
41.275
26.195
30.162
30.162
163
180
222
266
279
340
16 700
18 300
22 700
27 100
28 400
35 000
2 400
2 300
2 100
3 100
3 100
2 800
93.662
148.430
28.575
28.971
21.433
138
215
14 100
21 900
2 300
3 100
95.000
150.000
35.000
34.000
27.000
180
279
18 300
28 400
2 300
3 100
Note: 1. Chamfer dimensions on the back face of the inner and outer rings of the bearing are larger than maximum values for installation dimensions ras and r1as.
2. As for the maximum value for inner and outer ring diameters of bearings whose bearing numbers are marked with "†" (inner ring) and "††" (outer ring), the precision
class is an integer for class 4 and class 2 bearings only.
B-190
● Tapered Roller Bearings
r1a
Equivalent radial load
dynamic
Pr＝XFr＋YFa
Fa
Fa
≦e
Fr
Fr ＞e
X Y X
Y
1
0 0.4 Y2
static
Por＝0.5Fr＋YoFa
ra
φDa φdb
φda φDb
When Por＜Fr use Por＝Fr
For values of e, Y2 and Yo
see the table below.
Bearing numbers
Abutment and fillet dimensions
Load Constant
Axial
center
load factors
mm
mm
ras
r1as
max
max
a
da
db
Da
Db
98
91
122
130
3.5
3.3
104
100
92
94
117
125
125
134
6
3
4T-749/742
101
95
134
142
4T-497/492A
4T-HM617049/HM617010
4T-665/653
4T-596/592A
4T-758/752
99
106
102
102
103
93
95
95
96
97
120
125
131
135
144
4T-42346/42584
103
98
4T-LL217849/LL217810
4T-L217849/L217810
4T-42350/42584
4T-593/592A
4T-759/752
4T-6580/6535
4T-850/832
97
97
104
104
106
109
106
4T-HM218248†/HM218210††
＃ 4T-JM718149/JM718110
＃ 4T-JHM318448/JHM318410
＃ 4T-J90354/J90748
Mass
kg
e
Y2
Yo
0.7
0.44
1.35
0.74
1.6
2.5
2.5
0.2
5.9
0.44
0.41
1.35
1.47
0.74
0.81
1.37
2.3
3.5
3.3
12.0
0.33
1.84
1.01
3.25
128
137
139
144
150
3.5
4.8
3.5
3.5
3.5
3.3
3.3
3.3
3.3
3.3
0.7
6.9
8.0
2.6
12.0
0.44
0.43
0.41
0.44
0.34
1.35
1.39
1.47
1.36
1.76
0.74
0.76
0.81
0.75
0.97
1.43
2.69
2.65
2.9
4.26
134
142
3
3
–3.01） 0.49
1.22
0.67
1.99
94
94
98
98
99
102
100
115
116
134
135
144
141
149
117
119
142
144
150
154
155
1.5
1.5
3
3.5
3.5
3.5
3.5
1.5
1.5
3
3.3
3.3
3.3
3.3
–2.91）
–0.71）
–3.01）
2.6
12.0
12.8
18.5
0.33
0.33
0.49
0.44
0.34
0.40
0.30
1.81
1.82
1.22
1.36
1.76
1.50
2.00
1.00
1.00
0.67
0.75
0.97
0.82
1.10
0.452
0.737
1.96
2.78
4.09
4.73
5.08
112
99
133
141
7
3.5
8.6
0.33
1.80
0.99
2.55
105
106
120
99
100
112
131
140
162
139
148
179
3
3
3.5
2.5
2.5
3.3
2.0
0.44
10.1
0.34
–12.91） 0.87
1.35
1.76
0.69
0.74
0.97
0.38
2.14
3.32
6.32
4T-760/752
107
101
144
150
3.5
3.3
12.0
0.34
1.76
0.97
4.01
4T-47890/47820
4T-598A/592A
4T-681/672
107
113
110
101
101
104
131
135
149
140
144
160
3.5
6.4
3.5
3.3
3.3
3.3
0.6
2.6
3.0
0.45
0.44
0.47
1.34
1.36
1.28
0.74
0.75
0.70
2.08
2.63
3.87
4T-42368/42584
107
102
134
142
3
3
–3.01） 0.49
1.22
0.67
1.8
109
104
135
143
3
2.5
1.36
0.75
2.19
4T-498/493
＃ 4T-JM716648/JM716610
＃ 4T-JHM516849/JHM516810
＃ 4T-JM719149/JM719113
1.7
0.44
Note: 3. Bearing numbers marked " ＃ " designate J-series bearings. The tolerances of these bearings is listed in Table 6.6 on page A-42.
1）" − " means that load center at outside on end of inner ring.
B-191
(approx.)
● Tapered Roller Bearings
Inch series
J series
T
r1
C
r
B
φd
φD
a
d 95.250 ∼ 109.538mm
Boundary dimensions
Basic load ratings
static
dynamic
dynamic
mm
d
D
T
kN
B
C
Cr
Limiting speeds
static
min-1
kgf
Cor
Cr
Cor
grease
oil
95.250
130.175
146.050
147.638
148.430
152.400
157.162
168.275
190.500
20.638
33.338
35.717
28.575
39.688
36.512
41.275
57.150
21.433
34.925
36.322
28.971
36.322
36.116
41.275
57.531
16.670
26.195
26.192
21.433
30.162
26.195
30.162
46.038
81.0
163
180
138
180
188
222
445
147
266
279
215
279
305
340
610
8 300
16 700
18 300
14 100
18 300
19 200
22 700
45 000
15 000
27 100
28 400
21 900
28 400
31 000
35 000
62 000
2 500
2 400
2 300
2 300
2 300
2 200
2 100
1 900
3 300
3 100
3 100
3 100
3 100
2 900
2 800
2 600
96.838
148.430
188.912
28.575
50.800
28.971
46.038
21.433
31.750
138
281
215
365
14 100
28 700
21 900
37 000
2 300
1 800
3 100
2 400
98.425
157.162
168.275
36.512
41.275
36.116
41.275
26.195
30.162
188
222
305
340
19 200
22 700
31 000
35 000
2 200
2 100
2 900
2 800
99.974
212.725
66.675
66.675
53.975
575
810
58 500
82 500
1 700
2 300
100.000
155.000
36.000
35.000
28.000
192
310
19 600
31 500
2 200
2 900
100.012
157.162
36.512
36.116
26.195
188
305
19 200
31 000
2 200
2 900
101.600
157.162
168.275
180.975
190.500
190.500
190.500
212.725
212.725
36.512
41.275
47.625
57.150
57.150
57.150
66.675
66.675
36.116
41.275
48.006
57.531
57.531
57.531
66.675
66.675
26.195
30.162
38.100
44.450
46.038
46.038
53.975
53.975
188
222
285
380
445
445
475
575
305
340
430
555
610
610
695
810
19 200
22 700
29 100
38 500
45 000
45 000
48 500
58 500
31 000
35 000
44 000
56 500
62 000
62 000
71 000
82 500
2 200
2 100
2 000
2 000
1 900
1 900
1 800
1 700
2 900
2 800
2 700
2 600
2 600
2 600
2 300
2 300
104.775
180.975
47.625
48.006
38.100
285
430
29 100
44 000
2 000
2 700
107.950
158.750
159.987
165.100
212.725
23.020
34.925
36.512
66.675
21.438
34.925
36.512
66.675
15.875
26.988
26.988
53.975
102
167
191
475
166
320
315
695
10 400
17 100
19 500
48 500
17 000
33 000
32 000
71 000
2 100
2 100
2 100
1 800
2 800
2 800
2 700
2 300
109.538
158.750
23.020
21.438
15.875
102
166
10 400
17 000
2 100
2 800
Note: 1. Chamfer dimensions on the back face of the inner and outer rings of the bearing are larger than maximum values for installation dimensions ras and r1as.
2. As for the maximum value for inner and outer ring diameters of bearings whose bearing numbers are marked with "†" (inner ring) and "††" (outer ring), the precision
class is an integer for class 4 and class 2 bearings only.
B-192
● Tapered Roller Bearings
r1a
Equivalent radial load
dynamic
Pr＝XFr＋YFa
Fa
Fa
≦e
Fr
Fr ＞e
X Y X
Y
1
0 0.4 Y2
static
Por＝0.5Fr＋YoFa
ra
φDa φdb
φda φDb
When Por＜Fr use Por＝Fr
For values of e, Y2 and Yo
see the table below.
Bearing numbers
Abutment and fillet dimensions
Load Constant
Axial
center
load factors
mm
mm
ras
r1as
max
max
da
db
Da
Db
4T-L319249/L319210
4T-47896/47820
4T-594A/592XE
4T-42375/42584
4T-594/592A
4T-52375/52618
4T-683/672
4T-HH221440/HH221410
103
110
113
108
110
112
113
125
101
103
104
103
104
105
106
110
122
131
135
134
135
142
149
171
125
140
142
142
144
152
160
179
1.5
3.5
5
3
3.5
3.5
3.5
8
1.5
3.3
0.8
3
3.3
3.3
3.3
3.3
4T-42381/42584
4T-90381/90744
110
125
104
113
134
161
142
179
3.5
3.5
3
3.3
4T-52387/52618
4T-685/672
114
116
108
109
142
149
152
160
3.5
3.5
3.3
3.3
0.6
3.0
4T-HH224334†/HH224310
124
120
192
202
3.5
3.3
18.9
115
109
140
149
3
2.5
4T-52393/52618
116
109
142
152
3.5
3.3
0.6
4T-52400/52618
4T-687/672
4T-780/772††
4T-861/854
4T-HH221449/HH221410
4T-HH221449A/HH221410
4T-941/932
4T-HH224335/HH224310
117
118
119
129
131
122
130
132
111
112
113
114
116
116
117
121
142
149
161
170
171
171
187
192
152
160
168
174
179
179
193
202
3.5
3.5
3.5
8
8
3.5
7
7
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
4T-782/772††
122
116
161
168
3.5
4T-37425/37625
4T-LM522546/LM522510
4T-56425/56650
4T-936/932
122
122
123
137
115
116
117
122
143
146
149
187
152
154
159
193
4T-37431/37625
123
116
143
152
＃ 4T-JM720249/JM720210
a
kg
e
Y2
Yo
(approx.)
0.35
0.45
0.44
0.49
0.44
0.47
0.47
0.33
1.72
1.34
1.36
1.22
1.36
1.26
1.28
1.79
0.95
0.74
0.75
0.67
0.75
0.69
0.70
0.99
0.789
1.95
2.09
1.75
2.51
2.76
3.72
7.5
–3.01） 0.49
–12.91） 0.87
1.22
0.69
0.67
0.38
1.69
5.67
0.47
0.47
1.26
1.28
0.69
0.70
2.62
3.56
0.33
1.84
1.01
11.5
–0.31） 0.47
1.27
0.70
2.4
0.47
1.26
0.69
2.55
0.6
3.0
8.1
15.3
14.4
14.4
19.7
18.9
0.47
0.47
0.39
0.33
0.33
0.33
0.33
0.33
1.26
1.28
1.56
1.79
1.79
1.79
1.84
1.84
0.69
0.70
0.86
0.99
0.99
0.99
1.01
1.01
2.48
3.4
5.11
7
7.06
7.06
11.2
11.3
3.3
8.1
0.39
1.56
0.86
4.92
3.5
3.5
3.5
8
3.3
3.3
3.3
3.3
–14.01）
1.4
–2.01）
19.7
0.61
0.40
0.50
0.33
0.99
1.49
1.21
1.84
0.54
0.82
0.66
1.01
1.37
2.37
2.69
10.7
3.5
3.3
–14.01） 0.61
0.99
0.54
1.33
–1.01）
0.6
2.6
–3.01）
2.6
0.6
3.0
14.4
Note: 3. Bearing numbers marked " ＃ " designate J-series bearings. The tolerances of these bearings is listed in Table 6.6 on page A-42.
1）" − " means that load center at outside on end of inner ring.
B-193
Mass
● Tapered Roller Bearings
Inch series
J series
T
r1
C
r
B
φd
φD
a
d 109.987 ∼ 133.350mm
Boundary dimensions
Basic load ratings
static
dynamic
dynamic
mm
d
D
T
kN
Limiting speeds
static
min-1
kgf
B
C
Cr
Cor
Cr
Cor
grease
oil
109.987
159.987
34.925
34.925
26.988
167
320
17 100
33 000
2 100
2 800
109.992
177.800
41.275
41.275
30.162
232
375
23 600
38 000
1 900
2 600
110.000
165.000
180.000
35.000
47.000
35.000
46.000
26.500
38.000
191
305
315
480
19 500
31 000
32 000
49 000
2 100
1 900
2 700
2 600
111.125
214.312
55.562
52.388
39.688
405
560
41 500
57 000
1 500
2 000
114.300
177.800
180.975
212.725
212.725
228.600
41.275
34.925
66.675
66.675
53.975
41.275
31.750
66.675
66.675
49.428
30.162
25.400
53.975
53.975
38.100
232
169
475
575
430
375
245
695
810
620
23 600
17 200
48 500
58 500
44 000
38 000
25 000
71 000
82 500
63 500
1 900
1 900
1 800
1 700
1 400
2 600
2 500
2 300
2 300
1 900
115.087
190.500
47.625
49.212
34.925
300
475
30 500
48 500
1 800
2 500
117.475
180.975
34.925
31.750
25.400
169
245
17 200
25 000
1 900
2 500
120.000
170.000
25.400
25.400
19.050
127
210
13 000
21 400
2 000
2 600
120.650
234.950
63.500
63.500
49.212
525
825
53 500
84 000
1 500
2 000
123.825
182.562
39.688
38.100
33.338
224
435
22 900
44 000
1 800
2 400
127.000
182.562
196.850
215.900
228.600
228.600
230.000
254.000
39.688
46.038
47.625
53.975
53.975
63.500
77.788
38.100
46.038
47.625
49.428
49.428
63.500
82.550
33.338
38.100
34.925
38.100
38.100
49.212
61.912
224
310
320
320
430
525
740
435
550
540
445
620
825
1 070
22 900
31 500
32 500
32 500
44 000
53 500
75 500
44 000
56 500
55 000
45 000
63 500
84 000
109 000
1 800
1 700
1 600
1 400
1 400
1 500
1 400
2 400
2 200
2 100
1 900
1 900
2 000
1 900
128.588
206.375
47.625
47.625
34.925
315
520
32 000
53 000
1 700
2 200
130.175
196.850
206.375
46.038
47.625
46.038
47.625
38.100
34.925
310
315
550
520
31 500
32 000
56 500
53 000
1 700
1 700
2 200
2 200
133.350
177.008
25.400
26.195
20.638
126
259
12 900
26 400
1 800
2 400
Note: 1. Chamfer dimensions on the back face of the inner and outer rings of the bearing are larger than maximum values for installation dimensions ras and r1as.
2. As for the maximum value for inner and outer ring diameters of bearings whose bearing numbers are marked with "†" (inner ring) and "††" (outer ring), the precision
class is an integer for class 4 and class 2 bearings only.
B-194
● Tapered Roller Bearings
r1a
Equivalent radial load
dynamic
Pr＝XFr＋YFa
Fa
Fa
≦e
Fr
Fr ＞e
X Y X
Y
1
0 0.4 Y2
static
Por＝0.5Fr＋YoFa
ra
φDa φdb
φda φDb
When Por＜Fr use Por＝Fr
For values of e, Y2 and Yo
see the table below.
Bearing numbers
Abutment and fillet dimensions
Load Constant
Axial
center
load factors
mm
mm
ras
r1as
max
max
a
1.4
da
db
Da
Db
4T-LM522548/LM522510
133
118
146
154
8
3.3
4T-64433/64700
128
121
160
172
3.5
124
127
119
122
149
162
159
172
4T-H924045/H924010
139
131
186
4T-64450/64700
4T-68450/68712††
4T-938/932
4T-HH224346/HH224310
4T-HM926740/HM926710
131
130
141
143
146
125
123
128
131
142
4T-71453/71750
133
4T-68462/68712††
Mass
kg
e
Y2
Yo
(approx.)
0.40
1.49
0.82
2.24
3.3
–1.11） 0.52
1.16
0.64
3.77
3
3
2.5
2.5
–3.01） 0.50
6.0
0.41
1.21
1.48
0.66
0.81
2.52
4.61
205
3.5
3.3
–6.81） 0.67
0.89
0.49
8.18
160
163
187
192
200
172
172
193
202
219
3.5
3.5
7
7
3.5
3.3
3.3
3.3
3.3
3.3
–1.11）
–5.41）
19.7
18.9
–13.51）
0.52
0.50
0.33
0.33
0.74
1.16
1.21
1.84
1.84
0.81
0.64
0.66
1.01
1.01
0.45
3.52
2.93
10.1
10.2
9.76
126
171
181
3.5
3.3
6.7
0.42
1.44
0.79
5.11
132
125
163
172
3.5
3.3
–5.41） 0.50
1.21
0.66
2.78
132
127
156
163
3.3
3.3
–7.91） 0.46
1.31
0.72
1.67
4T-95475/95925
149
137
209
217
6.4
3.3
14.0
0.37
1.62
0.89
4T-48286/48220
139
133
168
176
3.5
3.3
5.7
0.31
1.97
1.08
3.52
4T-48290/48220
4T-67388/67322
4T-74500/74850
4T-97500/97900
4T-HM926747/HM926710
4T-95500/95905
4T-HH228349/HH228310
141
144
148
151
156
154
164
135
138
141
144
143
142
148
168
180
196
197
200
207
223
176
189
208
213
219
217
234
3.5
3.5
3.5
3.5
3.5
6.4
9.7
3.3
3.3
3.3
3.3
3.3
3.3
6.4
5.7
6.3
–2.21）
–13.41）
–13.51）
14.0
23.4
0.31
0.34
0.49
0.74
0.74
0.37
0.32
1.97
1.74
1.23
0.81
0.81
1.62
1.87
1.08
0.96
0.68
0.45
0.45
0.89
1.03
3.33
5.1
7.05
8.43
8.83
12.9
19.5
4T-799/792
146
140
186
198
3.3
3.3
1.9
0.46
1.31
0.72
5.77
4T-67389/67322
4T-799A/792
146
148
141
142
180
186
189
198
3.5
3.5
3.3
3.3
6.3
1.9
0.34
0.46
1.74
1.31
0.96
0.72
4.87
5.65
4T-L327249/L327210
142
140
167
171
1.5
1.5
–3.71） 0.35
1.72
0.95
1.7
＃ 4T-JM822049/JM822010
＃ 4T-JHM522649/JHM522610
＃ 4T-JL724348/JL724314
Note: 3. Bearing numbers marked " ＃ " designate J-series bearings. The tolerances of these bearings is listed in Table 6.6 on page A-42.
1）" − " means that load center at outside on end of inner ring.
B-195
12.6
● Tapered Roller Bearings
Inch series
J series
T
r1
C
r
B
φd
φD
a
d 133.350 ∼ 196.850mm
Boundary dimensions
Basic load ratings
static
dynamic
dynamic
mm
d
D
T
kN
Limiting speeds
static
min-1
kgf
B
C
Cr
Cor
Cr
Cor
grease
oil
133.350
190.500
196.850
196.850
215.900
234.950
39.688
46.038
46.038
47.625
63.500
39.688
46.038
46.038
47.625
63.500
33.338
38.100
38.100
34.925
49.212
236
310
310
320
525
475
550
550
540
825
24 100
31 500
31 500
32 500
53 500
48 500
56 500
56 500
55 000
84 000
1 700
1 700
1 700
1 600
1 500
2 300
2 200
2 200
2 100
2 000
136.525
190.500
228.600
39.688
57.150
39.688
57.150
33.338
44.450
236
445
475
735
24 100
45 500
48 500
75 000
1 700
1 500
2 300
2 000
139.700
215.900
228.600
254.000
47.625
57.150
66.675
47.625
57.150
66.675
34.925
44.450
47.625
320
445
550
540
735
910
32 500
45 500
56 000
55 000
75 000
92 500
1 600
1 500
1 400
2 100
2 000
1 800
142.875
200.025
200.025
41.275
41.275
39.688
39.688
34.130
34.130
239
239
490
490
24 300
24 300
50 000
50 000
1 600
1 600
2 100
2 100
146.050
193.675
254.000
28.575
66.675
28.575
66.675
23.020
47.625
165
550
340
910
16 800
56 000
35 000
92 500
1 600
1 400
2 200
1 800
152.400
192.088
222.250
25.000
46.830
24.000
46.830
19.000
34.925
130
315
261
585
13 200
32 000
26 700
60 000
1 600
1 500
2 100
2 000
158.750
205.583
225.425
23.812
41.275
23.812
39.688
18.258
33.338
126
254
247
555
12 900
25 900
25 200
56 500
1 500
1 400
2 000
1 900
165.100
225.425
41.275
39.688
33.338
254
555
25 900
56 500
1 400
1 900
170.000
230.000
39.000
38.000
31.000
282
520
28 700
53 000
1 400
1 800
177.800
227.012
247.650
30.162
47.625
30.162
47.625
23.020
38.100
181
340
415
690
18 500
35 000
42 000
70 500
1 300
1 300
1 800
1 700
180.000
250.000
47.000
45.000
37.000
370
710
37 500
72 500
1 300
1 700
190.000
260.000
46.000
44.000
36.500
365
720
37 000
73 500
1 200
1 600
196.850
241.300
23.812
23.017
17.462
160
330
16 300
33 500
1 200
1 600
Note: 1. Chamfer dimensions on the back face of the inner and outer rings of the bearing are larger than maximum values for installation dimensions ras and r1as.
2. Bearing numbers marked " ＃ " designate J-series bearings. The tolerances of these bearings is listed in Table 6.6 on page A-42.
B-196
● Tapered Roller Bearings
r1a
Equivalent radial load
dynamic
Pr＝XFr＋YFa
Fa
Fa
≦e
Fr
Fr ＞e
X Y X
Y
1
0 0.4 Y2
static
Por＝0.5Fr＋YoFa
ra
φDa φdb
φda φDb
When Por＜Fr use Por＝Fr
For values of e, Y2 and Yo
see the table below.
Bearing numbers
Abutment and fillet dimensions
Load Constant
Axial
center
load factors
mm
mm
ras
r1as
max
max
da
db
Da
Db
4T-48385/48320
4T-67390/67322
4T-67391/67322
4T-74525/74850
4T-95525/95925
148
149
157
152
166
142
143
143
146
148
177
180
180
196
209
184
189
189
208
217
3.5
3.5
8
3.5
9.7
3.3
3.3
3.3
3.3
3.3
4T-48393/48320
4T-896/892
151
156
144
150
177
205
184
216
3.5
3.5
3.3
3.3
4T-74550/74850
4T-898/892
4T-99550/99100
158
160
170
151
153
156
196
205
227
208
216
238
3.5
3.5
7
3.3
3.3
3.3
4T-48684/48620
4T-48685/48620
166
158
151
151
185
185
193
193
8
3.5
3.3
3.3
4T-36690/36620
4T-99575/99100
155
175
153
162
182
227
188
238
1.5
7
4T-L630349/L630310
4T-M231648/M231610
162
178
158
163
183
207
187
213
4T-L432349/L432310
4T-46780/46720
168
176
166
169
195
209
4T-46790/46720
181
174
184
kg
e
Y2
Yo
4.0
6.3
6.3
–2.21）
14.0
0.32
0.34
0.34
0.49
0.37
1.87
1.74
1.74
1.23
1.62
1.03
0.96
0.96
0.68
0.89
3.64
4.63
4.59
6.56
11.3
4.0
6.0
0.32
0.42
1.87
1.43
1.03
0.78
3.43
9.07
–2.21） 0.49
6.0
0.42
12.1
0.41
1.23
1.43
1.47
0.68
0.78
0.81
6.05
8.76
14.3
0.34
0.34
1.78
1.78
0.98
0.98
3.85
3.89
1.5
3.3
–5.01） 0.37
12.1
0.41
1.63
1.47
0.90
0.81
2.27
13.5
2
8
2
1.5
–10.01） 0.42
5.9
0.33
1.44
1.8
0.79
0.99
1.53
5.72
199
218
1.5
3.5
1.5
3.3
–9.81） 0.37
–2.61） 0.38
1.61
1.57
0.88
0.86
1.89
5.2
209
218
3.5
3.3
–2.61） 0.38
1.57
0.86
4.69
178
217
224
3
2.5
–4.71） 0.38
1.57
0.86
4.37
188
194
186
188
214
229
221
240
1.5
3.5
1.5
3.3
–12.81） 0.44
–4.81） 0.44
1.36
1.36
0.75
0.75
2.92
6.57
＃ 4T-JM736149/JM736110
196
190
232
243
3
2.5
–9.01） 0.48
1.25
0.69
6.76
＃ 4T-JM738249/JM738210
206
200
242
252
3
2.5
–10.91） 0.48
1.26
0.69
6.85
4T-LL639249/LL639210
205
203
232
236
1.5
1.5
–17.31） 0.42
1.44
0.79
2.07
＃ 4T-JHM534149/JHM534110
4T-36990/36920
4T-67790/67720
1）"−" means that load center at outside on end of inner ring.
B-197
a
Mass
3.1
3.1
(approx.)
● Double Row Tapered Roller Bearings
Back-to-back arrangement
B1
C
r1
r
φD
φd
a
d 40 ∼ 70mm
Boundary dimensions
Basic load ratings
static
dynamic
dynamic
mm
kN
d
D
B1
C
rs min1）
40
80
80
90
90
45
55
56
56
37.5
43.5
39.5
45.5
1.5
1.5
2
2
45
85
85
100
100
47
55
60
60
37.5
43.5
41.5
49.5
50
90
90
110
110
110
49
55
64
64
90
55
100
100
120
120
120
r1s min1）
Limiting speeds
static
min-1
kgf
Cr
Cor
Cr
Cor
grease
oil
0.6
0.6
0.6
0.6
105
136
132
157
134
187
171
204
10 700
13 900
13 500
16 000
13 700
19 100
17 400
20 800
4 100
4 100
3 200
3 700
5 500
5 500
4 200
4 900
1.5
1.5
2
2
0.6
0.6
0.6
0.6
116
141
165
191
157
200
218
251
11 800
14 300
16 800
19 500
16 000
20 400
22 200
25 600
3 700
3 700
2 800
3 300
4 900
4 900
3 800
4 400
39.5
43.5
43.5
51.5
71.5
1.5
1.5
2.5
2.5
2.5
0.6
0.6
0.6
0.6
0.6
132
150
194
227
315
186
218
260
305
465
13 500
15 300
19 800
23 200
32 000
18 900
22 200
26 600
31 000
47 500
3 400
3 400
2 600
3 000
3 000
4 500
4 500
3 500
4 000
4 000
51
60
70
70
97
41.5
48.5
49
57
76
2
2
2.5
2.5
2.5
0.6
0.6
0.6
0.6
0.6
160
186
226
266
370
221
269
305
360
550
16 300
18 900
23 100
27 100
37 500
22 600
27 400
31 500
36 500
56 000
3 100
3 100
2 400
2 700
2 700
4 100
4 100
3 100
3 700
3 700
60
110
110
130
130
130
53
66
74
74
104
43.5
54.5
51
59
81
2
2
3
3
3
0.6
0.6
1
1
1
180
223
258
310
420
249
330
350
420
625
18 300
22 700
26 300
31 500
42 500
25 400
33 500
36 000
43 000
64 000
2 800
2 800
2 200
2 500
2 500
3 800
3 800
2 900
3 400
3 400
65
120
120
140
140
140
56
73
79
79
108
46.5
61.5
53
63
84
2
2
3
3
3
0.6
0.6
1
1
1
211
273
297
350
470
295
410
410
475
700
21 500
27 800
30 500
35 500
47 500
30 000
42 000
41 500
48 500
71 500
2 600
2 600
2 000
2 300
2 300
3 500
3 500
2 700
3 100
3 100
70
125
125
150
150
150
59
74
83
83
116
48.5
61.5
57
67
92
2
2
3
3
3
0.6
0.6
1
1
1
225
285
330
395
530
325
440
460
545
805
23 000
29 000
33 500
40 000
54 000
33 000
45 000
46 500
55 500
82 500
2 400
2 400
1 900
2 200
2 200
3 200
3 200
2 500
2 900
2 900
1）Minimum allowable dimension for chamfer dimension r or r1.
B-198
● Double Row Tapered Roller Bearings
Sb
r1a
Equivalent radial load
dynamic
Pr＝XFr＋YFa
Fa
Fa
≦e
Fr
Fr ＞e
X Y
X
Y
1 Y1 0.67 Y2
static
Por＝Fr＋YoFa
For values of e, Y2 and Yo
see the table below.
ra
φDb
φda
Bearing numbers
Abutment and fillet dimensions
Load
center
mm
mm
da
Db
Sb
ras
r1as
min
min
min
max
max
4T-430208X
4T-432208X
4T-430308DX
4T-430308
48.5
48.5
50
50
75
75
86.5
82
3.5
5.5
8
5
1.5
1.5
2
2
0.6
0.6
0.6
0.6
4T-430209
4T-432209
＊4T-430309DX
4T-430309
53.5
53.5
55
55
80
81
96
93
4.5
5.5
9
5
1.5
1.5
2
2
4T-430210
432210U
4T-430310DX
4T-430310
432310U
58.5
58.5
62
62
62
85
85
105
102
102
4.5
5.5
10
6
9
4T-430211X
432211U
4T-430311DX
430311XU
432311U
65
65
67
67
67
94
95
113
111
111
4T-430212X
432212U
4T-430312DX
430312U
432312U
70
70
74
74
74
4T-430213X
432213U
4T-430313DX
430313XU
432313U
4T-430214
432214U
4T-430314DX
430314XU
432314U
Axial load factors
Mass
kg
e
Y1
Y2
Yo
38.5
43
64.5
44.5
0.37
0.37
0.83
0.35
1.80
1.80
0.82
1.96
2.68
2.68
1.22
2.91
1.76
1.76
0.80
1.91
0.929
1.18
1.56
1.61
0.6
0.6
0.6
0.6
42
46
70
47.5
0.40
0.40
0.83
0.35
1.67
1.67
0.82
1.96
2.48
2.48
1.22
2.91
1.63
1.63
0.80
1.91
1.04
1.27
2.11
2.11
1.5
1.5
2
2
2
0.6
0.6
0.6
0.6
0.6
44.5
47.5
75
51
62.5
0.42
0.42
0.83
0.35
0.35
1.61
1.61
0.82
1.96
1.96
2.39
2.39
1.22
2.91
2.91
1.57
1.57
0.80
1.91
1.91
1.18
1.36
2.65
2.72
3.98
4.5
5.5
10.5
6.5
10.5
2
2
2
2
2
0.6
0.6
0.6
0.6
0.6
47
51
83
55.5
66.5
0.40
0.40
0.83
0.35
0.35
1.67
1.67
0.82
1.96
1.96
2.48
2.48
1.22
2.91
2.91
1.63
1.63
0.80
1.91
1.91
1.55
1.85
3.42
3.48
5.05
103
104
124
120
120
4.5
5.5
11.5
7.5
11.5
2
2
2.5
2.5
2.5
0.6
0.6
1
1
1
49.5
56
88.5
59.5
71
0.40
0.40
0.83
0.35
0.35
1.67
1.67
0.82
1.96
1.96
2.48
2.48
1.22
2.91
2.91
1.63
1.63
0.80
1.91
1.91
1.99
2.49
4.22
4.31
6.29
75
75
79
79
79
113
115
133
130
130
4.5
5.5
13
8
12
2
2
2.5
2.5
2.5
0.6
0.6
1
1
1
53.5
61.5
94.5
64
74.5
0.40
0.40
0.83
0.35
0.35
1.67
1.67
0.82
1.96
1.96
2.48
2.48
1.22
2.91
2.91
1.63
1.63
0.80
1.91
1.91
2.49
3.33
5.16
5.32
7.55
80
80
84
84
84
118
119
142
140
140
5
6
13
8
12
2
2
2.5
2.5
2.5
0.6
0.6
1
1
1
57
64.5
101
67
80.5
0.42
0.42
0.83
0.35
0.35
1.61
1.61
0.82
1.96
1.96
2.39
2.39
1.22
2.91
2.91
1.57
1.57
0.80
1.91
1.91
2.67
3.56
6.23
6.37
9.28
B-199
a
Constant
(approx.)
● Double Row Tapered Roller Bearings
Back-to-back arrangement
B1
C
r1
r
φD
φd
a
d 75 ∼ 105mm
Boundary dimensions
Basic load ratings
static
dynamic
dynamic
mm
d
D
B1
C
75
130
130
160
160
160
62
74
87
87
125
51.5
61.5
59
69
99
80
140
140
170
170
170
64
78
92
92
131
85
150
150
180
180
180
kN
rs min1）
r1s min1）
Limiting speeds
static
min-1
kgf
Cr
Cor
Cr
Cor
grease
oil
2
2
3
3
3
0.6
0.6
1
1
1
238
288
370
435
610
350
445
510
605
935
24 300
29 300
37 500
44 500
62 000
36 000
45 500
52 000
62 000
95 500
2 300
2 300
1 700
2 000
2 000
3 000
3 000
2 300
2 700
2 700
51.5
63.5
61
73
104
2.5
2.5
3
3
3
0.6
0.6
1
1
1
274
340
405
500
680
400
530
565
700
1 050
27 900
35 000
41 500
51 000
69 000
40 500
54 000
58 000
71 500
107 000
2 100
2 100
1 600
1 900
1 900
2 800
2 800
2 200
2 500
2 500
70
86
98
98
137
57
69
65
77
108
2.5
2.5
4
4
4
0.6
0.6
1
1
1
315
385
425
520
690
465
600
585
725
1 050
32 000
39 000
43 000
53 000
70 500
47 000
61 500
59 500
74 000
107 000
2 000
2 000
1 500
1 800
1 800
2 700
2 700
2 100
2 400
2 400
90
160
160
190
190
190
74
94
102
102
144
61
77
69
81
115
2.5
2.5
4
4
4
0.6
0.6
1
1
1
355
450
465
580
770
535
720
645
815
1 190
36 500
46 000
47 500
59 000
78 500
54 500
73 500
65 500
83 000
121 000
1 900
1 900
1 500
1 700
1 700
2 500
2 500
1 900
2 300
2 300
95
170
170
200
200
200
78
100
108
108
151
63
83
85
85
118
3
3
4
3
4
1
1
1
1
1
385
515
630
540
865
580
835
890
735
1 340
39 500
52 500
64 000
55 500
88 000
59 000
85 000
91 000
75 000
137 000
1 800
1 800
1 600
1 600
1 600
2 400
2 400
2 100
2 100
2 100
100
180
180
215
215
215
83
107
112
112
162
67
87
87
87
127
3
3
4
3
4
1
1
1
1
1
440
565
700
590
980
675
925
995
800
1 540
45 000
58 000
71 500
60 000
100 000
68 500
94 500
102 000
81 500
157 000
1 700
1 700
1 500
1 500
1 500
2 200
2 200
2 000
2 000
2 000
105
190
190
225
88
115
116
70
95
91
3
3
3
1
1
1
490
650
625
760
1 080
845
50 000
66 000
63 500
77 500
111 000
86 000
1 600
1 600
1 400
2 100
2 100
1 900
1）Minimum allowable dimension for chamfer dimension r or r1.
Note: 1. When incorporating bearings with bearing numbers marked with " ＊ ", please consult NTN Engineering.
B-200
● Double Row Tapered Roller Bearings
Sb
r1a
Equivalent radial load
dynamic
Pr＝XFr＋YFa
Fa
Fa
≦e
Fr
Fr ＞e
X Y
X
Y
1 Y1 0.67 Y2
static
Por＝Fr＋YoFa
For values of e, Y2 and Yo
see the table below.
ra
φDb
φda
Bearing numbers
Abutment and fillet dimensions
Load
center
mm
mm
Constant
Axial load factors
Mass
kg
da
Db
Sb
ras
r1as
min
min
min
max
max
a
e
Y1
Y2
Yo
(approx.)
4T-430215
432215U
430315DU
430315XU
432315U
85
85
89
89
89
124
125
151
149
149
5
6
14
9
13
2
2
2.5
2.5
2.5
0.6
0.6
1
1
1
61.5
67
107
70.5
87.5
0.44
0.44
0.83
0.35
0.35
1.55
1.55
0.82
1.96
1.96
2.31
2.31
1.22
2.91
2.91
1.52
1.52
0.80
1.91
1.91
2.99
3.68
7.31
7.71
11.5
430216XU
432216XU
430316DU
430316XU
432316U
92
92
94
94
94
132
134
159
159
159
6
7
15.5
9.5
13.5
2
2
2.5
2.5
2.5
0.6
0.6
1
1
1
63
69.5
114
75.5
90.5
0.42
0.42
0.83
0.35
0.35
1.61
1.61
0.82
1.96
1.96
2.39
2.39
1.22
2.91
2.91
1.57
1.57
0.80
1.91
1.91
3.65
4.58
8.99
9.55
13.6
430217XU
432217XU
430317DU
430317XU
432317U
97
97
103
103
103
141
142
169
167
167
6.5
8.5
16.5
10.5
14.5
2
2
3
3
3
0.6
0.6
1
1
1
69
76
121
80
96
0.42
0.42
0.83
0.35
0.35
1.61
1.61
0.82
1.96
1.96
2.39
2.39
1.22
2.91
2.91
1.57
1.57
0.80
1.91
1.91
4.59
5.85
10.6
11.2
15.4
430218U
432218U
430318DU
430318U
432318U
102
102
108
108
108
150
152
180
177
177
6.5
8.5
16.5
10.5
14.5
2
2
3
3
3
0.6
0.6
1
1
1
73
81
127
84
100
0.42
0.42
0.83
0.35
0.35
1.61
1.61
0.82
1.96
1.96
2.39
2.39
1.22
2.91
2.91
1.57
1.57
0.80
1.91
1.91
5.66
7.35
12.5
12.9
18.2
430219XU
432219XU
＊ 430319XU
430319X
432319U
109
109
113
113
113
159
161
186
186
186
7.5
8.5
11.5
11.5
16.5
2.5
2.5
3
3
3
1
1
1
1
1
76.5
86.5
89
88.5
106
0.42
0.42
0.35
0.35
0.35
1.61
1.61
1.96
1.95
1.96
2.39
2.39
2.91
2.90
2.91
1.57
1.57
1.91
1.91
1.91
8.01
9.04
15.0
14.0
21.5
430220XU
432220XU
＊ 430320XU
430320X
432320U
114
114
118
118
118
168
171
200
200
200
8
10
12.5
12.5
17.5
2.5
2.5
3
3
3
1
1
1
1
1
81.5
92
92
93.5
113
0.42
0.42
0.35
0.35
0.35
1.61
1.61
1.96
1.95
1.96
2.39
2.39
2.91
2.90
2.91
1.57
1.57
1.91
1.91
1.91
8.11
10.7
18.4
16.5
26.5
430221XU
432221XU
430321X
119
119
123
178
180
209
9
10
12.5
2.5
2.5
3
1
1
1
86
97.5
96.5
0.42
0.42
0.35
1.61
1.61
1.95
2.39
2.39
2.90
1.57
1.57
1.91
9.73
13.1
19.6
B-201
● Double Row Tapered Roller Bearings
Back-to-back arrangement
B1
C
r1
r
φD
φd
a
d 105 ∼ 140mm
Boundary dimensions
Basic load ratings
static
dynamic
dynamic
mm
rs min1）
r1s min1）
Cor
grease
oil
1 060
1 470
76 000
97 500
109 000
150 000
1 400
1 400
1 900
1 900
228
298
555
720
825
685
1 070
1 210
340
485
865
1 210
1 180
925
1 660
1 940
23 300
30 500
56 500
73 500
84 000
69 500
109 000
123 000
35 000
49 500
88 500
124 000
120 000
94 500
169 000
197 000
1 600
1 600
1 500
1 500
1 400
1 400
1 400
1 400
2 200
2 200
2 000
2 000
1 800
1 800
1 800
1 800
0.6
0.6
0.6
0.6
1
1
1
1
1
193
230
263
370
595
790
960
800
1 400
298
375
435
610
940
1 360
1 390
1 100
2 270
19 700
23 500
26 800
38 000
60 500
80 500
97 500
81 500
143 000
30 500
38 000
44 500
62 500
96 000
139 000
142 000
112 000
231 000
1 500
1 500
1 500
1 500
1 400
1 400
1 200
1 200
1 200
2 100
2 100
2 000
2 000
1 900
1 900
1 700
1 700
1 700
2.5
2.5
2.5
2.5
4
4
5
0.6
0.6
0.6
0.6
1
1
1.5
224
294
315
410
640
905
1 110
365
490
485
675
1 010
1 630
1 660
22 900
29 900
32 000
42 000
65 500
92 500
113 000
37 500
50 000
49 500
69 000
103 000
166 000
169 000
1 400
1 400
1 400
1 400
1 300
1 300
1 200
1 900
1 900
1 800
1 800
1 700
1 700
1 500
2.5
2.5
3
3
3
4
4
5
4
0.6
0.6
1
1
1
1
1
1.5
1.5
262
300
370
390
640
720
1 050
1 260
1 100
415
535
580
650
970
1 140
1 840
1 900
1 560
26 700
30 500
37 500
40 000
65 500
73 500
107 000
129 000
112 000
42 500
54 500
59 500
66 000
99 000
117 000
188 000
194 000
160 000
1 300
1 300
1 200
1 200
1 200
1 200
1 200
1 100
1 100
1 800
1 800
1 700
1 700
1 600
1 600
1 600
1 400
1 400
D
B1
105
225
225
116
170
91
133
4
3
1
1
110
180
180
200
200
240
240
240
240
56
70
92
121
118
118
181
181
50
56
74
101
93
93
142
142
2.5
2.5
3
3
4
3
3
4
120
180
180
200
200
215
215
260
260
260
46
58
62
78
97
132
128
128
188
41
46
55
62
78
109
101
101
145
200
200
210
210
230
230
280
52
65
64
80
98
145
137
210
210
225
225
250
250
250
300
300
53
66
68
84
102
102
153
145
145
140
min-1
kgf
Cr
d
130
C
kN
Limiting speeds
static
Cr
Cor
750
955
0.6
0.6
1
1
1
1
1
1
2.5
2.5
2.5
2.5
3
3
4
3
4
46
52
57
64
78.5
117.5
107.5
47
53
61
68
82.5
82.5
125.5
115.5
115.5
1）Minimum allowable dimension for chamfer dimension r or r1.
Note: 1. When incorporating bearings with bearing numbers marked with " ＊ ", please consult NTN Engineering.
B-202
● Double Row Tapered Roller Bearings
Sb
r1a
Equivalent radial load
dynamic
Pr＝XFr＋YFa
Fa
Fa
≦e
Fr
Fr ＞e
X Y
X
Y
1 Y1 0.67 Y2
static
Por＝Fr＋YoFa
For values of e, Y2 and Yo
see the table below.
ra
φDb
φda
Bearing numbers
Abutment and fillet dimensions
Load
center
mm
mm
da
Db
Sb
ras
r1as
min
min
min
max
max
Constant
Axial load factors
Mass
kg
a
e
Y1
Y2
Yo
(approx.)
＊ 430321XU
432321
123
119
209
208
12.5
18.5
3
2.5
1
1
96.5
117.5
0.35
0.35
1.96
1.96
2.91
2.90
1.91
1.91
21.0
30.2
413122
423122
430222XU
432222XU
＊ 430322U
430322
432322
＊ 432322U
122
122
124
124
128
128
128
128
169
166
188
190
222
222
222
222
3
7
9
10
12.5
12.5
19.5
19.5
2
2
2.5
2.5
3
3
3
3
0.6
0.6
1
1
1
1
1
1
66.5
66.5
90
102
100
97.5
124
127
0.40
0.33
0.42
0.42
0.35
0.35
0.35
0.35
1.68
2.03
1.61
1.61
1.96
1.95
1.95
1.96
2.50
3.02
2.39
2.39
2.91
2.90
2.90
2.91
1.64
1.98
1.57
1.57
1.91
1.91
1.91
1.91
5.20
6.38
11.4
15.5
24.5
22.1
35.6
38.2
413024
423024
413124
423124
430224XU
432224XU
430324XU
430324X
432324U
132
132
132
132
134
134
138
138
138
171
170
184
188
203
204
239
239
239
2.5
6
3.5
8
9.5
11.5
13.5
13.5
21.5
2
2
2
2
2.5
2.5
3
3
3
0.6
0.6
0.6
0.6
1
1
1
1
1
59
66
76.5
76.5
98
112
107
106
130
0.37
0.37
0.43
0.37
0.44
0.44
0.35
0.35
0.35
1.80
1.80
1.57
1.80
1.55
1.55
1.96
1.95
1.96
2.69
2.69
2.34
2.69
2.31
2.31
2.91
2.90
2.91
1.76
1.76
1.53
1.76
1.52
1.52
1.91
1.91
1.91
3.85
4.41
7.24
8.96
13.6
18.9
30.5
29.4
47.0
413026
423026
413126
423126
430226XU
432226XU
430326XU
142
142
142
142
148
148
152
186
189
196
198
218
219
255
3
6.5
3.5
8
9.5
13.5
14.5
2
2
2
2
3
3
4
0.6
0.6
0.6
0.6
1
1
1.5
66
71.5
69
79.5
102
124
116
0.37
0.37
0.33
0.37
0.44
0.44
0.35
1.80
1.80
2.03
1.80
1.55
1.55
1.96
2.69
2.69
3.02
2.69
2.31
2.31
2.91
1.76
1.76
1.98
1.76
1.52
1.52
1.91
5.55
6.62
7.83
9.77
15.9
24.1
37.9
413028
423028
413128
423128
430228X
＊ 430228XU
432228XU
＊ 430328XU
430328X
152
152
154
154
158
158
158
162
162
199
197
210
209
237
237
238
273
272
3
6.5
3.5
8
9.5
9.5
13.5
14.5
14.5
2
2
2.5
2.5
3
3
3
4
4
0.6
0.6
1
1
1
1
1
1.5
1.5
68.5
75
73.5
88
106
107
131
123
123
0.37
0.37
0.33
0.37
0.43
0.44
0.44
0.35
0.35
1.80
1.84
2.03
1.80
1.57
1.55
1.55
1.96
1.95
2.69
2.74
3.02
2.69
2.34
2.31
2.31
2.91
2.90
1.76
1.80
1.98
1.76
1.53
1.52
1.52
1.91
1.91
5.88
7.11
9.18
11.8
18.0
19.9
30.1
46.6
44.4
B-203
● Double Row Tapered Roller Bearings
Back-to-back arrangement
B1
C
r1
r
φD
φd
a
d 150 ∼ 190mm
Boundary dimensions
Basic load ratings
static
dynamic
dynamic
mm
rs min1）
Cor
grease
oil
430
630
805
1 040
1 210
2 140
2 140
1 750
27 900
36 000
49 500
61 500
78 500
122 000
144 000
119 000
44 000
64 500
82 000
106 000
123 000
218 000
218 000
178 000
1 200
1 200
1 200
1 200
1 100
1 100
990
990
1 600
1 600
1 500
1 500
1 500
1 500
1 300
1 300
330
430
595
675
900
1 530
1 570
1 290
535
765
965
1 180
1 440
2 840
2 390
1 950
34 000
44 000
60 500
69 000
92 000
156 000
160 000
132 000
54 500
78 000
98 000
120 000
147 000
290 000
244 000
199 000
1 100
1 100
1 100
1 100
1 000
1 000
920
920
1 500
1 500
1 400
1 400
1 400
1 400
1 200
1 200
1
1
1
1
1.5
1.5
365
490
550
725
1 050
1 710
620
865
900
1 270
1 690
3 200
37 000
50 000
56 000
74 000
107 000
174 000
63 500
88 000
92 000
130 000
173 000
325 000
1 100
1 100
1 000
1 000
950
950
1 400
1 400
1 300
1 300
1 300
1 300
3
3
4
4
5
5
1
1
1.5
1.5
1.5
1.5
425
580
705
885
1 080
1 760
735
1 050
1 190
1 530
1 780
3 350
43 000
59 500
72 000
90 500
110 000
180 000
75 000
107 000
121 000
156 000
182 000
345 000
1 000
1 000
940
940
890
890
1 300
1 300
1 300
1 300
1 200
1 200
3
3
4
4
5
5
4
1
1
1.5
1.5
1.5
1.5
1.5
430
615
780
985
1 230
1 970
1 710
740
1 110
1 280
1 710
2 010
3 700
3 350
44 000
63 000
79 500
100 000
125 000
201 000
175 000
75 500
113 000
131 000
174 000
205 000
380 000
340 000
940
940
890
890
840
840
840
1 300
1 300
1 200
1 200
1 100
1 100
1 100
D
B1
150
225
225
250
250
270
270
320
320
56
70
80
100
109
164
154
154
50
56
71
80
87
130
120
120
3
3
3
3
4
4
5
4
160
240
240
270
270
290
290
340
340
60
75
86
108
115
178
160
160
53
60
76
86
91
144
126
126
170
260
260
280
280
310
310
67
84
88
110
125
192
280
280
300
300
320
320
290
290
320
320
340
340
340
190
r1s min1）
min-1
kgf
Cr
d
180
C
kN
Limiting speeds
static
Cr
Cor
1
1
1
1
1
1
1.5
1.5
274
355
485
600
770
1 200
1 410
1 170
3
3
3
3
4
4
5
4
1
1
1
1
1
1
1.5
1.5
60
67
78
88
97
152
3
3
3
3
5
5
74
93
96
120
127
192
66
74
85
96
99
152
75
94
104
130
133
204
204
67
75
92
104
105
160
160
1）Minimum allowable dimension for chamfer dimension r or r1.
Note: 1. When incorporating bearings with bearing numbers marked with " ＊ ", please consult NTN Engineering.
B-204
● Double Row Tapered Roller Bearings
Sb
r1a
Equivalent radial load
dynamic
Pr＝XFr＋YFa
Fa
Fa
≦e
Fr
Fr ＞e
X Y
X
Y
1 Y1 0.67 Y2
static
Por＝Fr＋YoFa
For values of e, Y2 and Yo
see the table below.
ra
φDb
φda
Bearing numbers
Abutment and fillet dimensions
Load
center
mm
mm
Constant
Axial load factors
Mass
kg
da
Db
Sb
ras
r1as
min
min
min
max
max
a
e
Y1
Y2
Yo
(approx.)
＊ 413030
423030
413130
423130
430230U
432230XU
＊ 430330U
430330
164
164
164
164
168
168
172
172
213
212
231
234
255
254
292
292
3
7
4.5
10
11
17
17
17
2.5
2.5
2.5
2.5
3
3
4
4
1
1
1
1
1
1
1.5
1.5
73.5
79.5
82.5
96.5
114
139
132
135
0.37
0.37
0.33
0.37
0.44
0.44
0.35
0.37
1.80
1.80
2.03
1.80
1.55
1.55
1.96
1.80
2.69
2.69
3.02
2.69
2.31
2.31
2.91
2.69
1.76
1.76
1.98
1.76
1.52
1.52
1.91
1.76
6.66
8.76
14.3
18.0
24.4
37.3
55.4
52.8
413032
423032
413132E1
423132E1
430232U
432232U
＊ 430332XU
430332X
174
174
174
174
178
178
182
182
227
227
254
250
272
275
310
311
3.5
7.5
5
11
12
17
17
17
2.5
2.5
2.5
2.5
3
3
4
4
1
1
1
1
1
1
1.5
1.5
79
85.5
98.5
106
122
150
138
141
0.37
0.37
0.40
0.37
0.44
0.44
0.35
0.37
1.80
1.80
1.68
1.80
1.55
1.55
1.96
1.80
2.69
2.69
2.50
2.69
2.31
2.31
2.91
2.69
1.76
1.76
1.64
1.76
1.52
1.52
1.91
1.76
8.29
10.7
18.2
22.8
31.9
46.9
65.5
62.4
413034
423034
413134E1
423134E1
430234U
432234XU
184
184
184
184
192
192
242
244
260
260
288
293
3.5
8.5
5
11
14
20
2.5
2.5
2.5
2.5
4
4
1
1
1
1
1.5
1.5
86.5
93.5
104
109
132
160
0.37
0.37
0.40
0.37
0.44
0.44
1.80
1.80
1.68
1.80
1.55
1.55
2.69
2.69
2.50
2.69
2.31
2.31
1.76
1.76
1.64
1.76
1.52
1.52
11.6
14.3
19.5
24.7
38.0
58.2
413036E1
423036E1
413136E1
423136E1
430236U
432236U
194
194
198
198
202
202
260
262
280
279
297
305
4
9.5
5.5
12
14
20
2.5
2.5
3
3
4
4
1
1
1.5
1.5
1.5
1.5
94
102
111
119
139
165
0.37
0.37
0.40
0.37
0.45
0.45
1.80
1.80
1.68
1.80
1.50
1.50
2.69
2.69
2.50
2.69
2.23
2.23
1.76
1.76
1.64
1.76
1.47
1.47
15.9
19.0
24.6
31.4
39.4
60.6
413038E1
423038E1
413138
423138
430238U
＊ 432238U
432238
204
204
208
208
212
212
212
271
272
300
299
316
323
323
4
9.5
6
13
14
22
22
2.5
2.5
3
3
4
4
4
1
1
1.5
1.5
1.5
1.5
1.5
96
104
119
126
141
174
185
0.37
0.37
0.40
0.37
0.44
0.44
0.49
1.80
1.80
1.68
1.80
1.55
1.55
1.38
2.69
2.69
2.50
2.69
2.31
2.31
2.06
1.76
1.76
1.64
1.76
1.52
1.52
1.35
16.2
19.6
30.8
38.6
45.4
73.3
69.8
B-205
● Double Row Tapered Roller Bearings
Back-to-back arrangement
B1
C
r1
r
φD
φd
a
d 200 ∼ 340mm
Boundary dimensions
Basic load ratings
static
dynamic
dynamic
mm
d
rs min1）
D
B1
310
310
340
340
360
360
360
82
103
112
140
142
218
218
73
82
100
112
110
174
174
3
3
4
4
5
5
4
220
340
340
370
370
90
113
120
150
80
90
107
120
240
360
360
400
400
92
115
128
160
260
400
400
440
440
r1s min1）
min-1
kgf
Cr
Cor
1
1
1.5
1.5
1.5
1.5
1.5
530
720
965
1 090
1 350
2 260
1 980
4
4
5
5
1.5
1.5
1.5
1.5
82
92
114
128
4
4
5
5
104
130
144
180
92
104
128
144
280
420
420
460
460
106
133
146
183
300
460
460
500
500
grease
oil
Cr
Cor
940
1 320
1 660
1 910
2 210
4 250
3 950
54 000
73 000
98 500
111 000
137 000
230 000
201 000
96 000
135 000
169 000
195 000
226 000
435 000
400 000
900
900
840
840
800
800
800
1 200
1 200
1 100
1 100
1 100
1 100
1 100
595
880
1 110
1 220
1 060
1 650
1 920
2 260
61 000
89 500
113 000
125 000
108 000
168 000
196 000
230 000
810
810
760
760
1 100
1 100
1 000
1 000
1.5
1.5
1.5
1.5
655
910
1 230
1 400
1 160
1 770
2 130
2 600
66 500
92 500
126 000
142 000
118 000
181 000
217 000
265 000
730
730
690
690
980
980
920
920
5
5
5
5
1.5
1.5
1.5
1.5
840
1 150
1 500
1 940
1 540
2 190
2 630
3 750
85 500
117 000
152 000
198 000
157 000
223 000
268 000
380 000
670
670
630
630
900
900
840
840
94
106
130
146
5
5
6
6
1.5
1.5
2
2
890
1 200
1 640
1 940
1 630
2 340
2 900
3 650
91 000
123 000
167 000
198 000
166 000
238 000
296 000
375 000
620
620
580
580
820
820
770
770
118
148
160
200
105
118
142
160
5
5
6
6
1.5
1.5
2
2
1 070
1 610
2 010
2 100
1 990
3 150
3 600
4 050
109 000
165 000
205 000
214 000
203 000
320 000
370 000
415 000
570
570
530
530
760
760
710
710
320
480
480
540
540
121
151
176
220
108
121
157
176
5
5
6
6
1.5
1.5
2
2
1 190
1 580
2 240
2 500
2 250
3 100
4 100
4 900
121 000
162 000
228 000
255 000
229 000
315 000
415 000
500 000
530
530
500
500
710
710
660
660
340
520
133
118
6
2
1 480
2 870
150 000
293 000
500
660
200
C
kN
Limiting speeds
static
1）Minimum allowable dimension for chamfer dimension r or r1.
Note: 1. When incorporating bearings with bearing numbers marked with " ＊ ", please consult NTN Engineering.
B-206
● Double Row Tapered Roller Bearings
Sb
r1a
Equivalent radial load
dynamic
Pr＝XFr＋YFa
Fa
Fa
≦e
Fr
Fr ＞e
X Y
X
Y
1 Y1 0.67 Y2
static
Por＝Fr＋YoFa
For values of e, Y2 and Yo
see the table below.
ra
φDb
φda
Bearing numbers
Abutment and fillet dimensions
Load
center
mm
mm
da
Db
Sb
ras
r1as
min
min
min
max
max
a
Constant
Axial load factors
Mass
kg
e
Y1
Y2
Yo
(approx.)
413040E1
423040E1
413140
423140
430240U
＊ 432240U
432240
214
214
218
218
222
222
222
288
291
320
316
336
340
340
4.5
10.5
6
14
16
22
22
2.5
2.5
3
3
4
4
4
1
1
1.5
1.5
1.5
1.5
1.5
101
112
125
134
154
180
193
0.37
0.37
0.40
0.37
0.44
0.41
0.49
1.80
1.80
1.68
1.80
1.55
1.66
1.38
2.69
2.69
2.50
2.69
2.31
2.47
2.06
1.76
1.76
1.64
1.76
1.52
1.62
1.35
20.6
25.7
38.6
47.5
62.8
95.2
90.7
413044E1
423044E1
413144
423144
238
238
242
242
318
319
346
341
5
11.5
6.5
15
3
3
4
4
1.5
1.5
1.5
1.5
112
125
135
154
0.37
0.37
0.40
0.40
1.80
1.80
1.68
1.68
2.69
2.69
2.50
2.50
1.76
1.76
1.64
1.64
26.7
33.3
47.8
59.6
413048E1
423048E1
413148
423148
258
258
262
262
339
340.5
375
373
5
11.5
7
16
3
3
4
4
1.5
1.5
1.5
1.5
117
131
144
164
0.37
0.37
0.40
0.40
1.80
1.80
1.68
1.68
2.69
2.69
2.50
2.50
1.76
1.76
1.64
1.64
30.2
36.3
58.9
71.7
413052
423052
413152
423152
282
282
282
282
372
374
412
413
6
13
8
18
4
4
4
4
1.5
1.5
1.5
1.5
131
143
161
176
0.37
0.37
0.40
0.40
1.80
1.80
1.68
1.68
2.69
2.69
2.50
2.50
1.76
1.76
1.64
1.64
41.5
53.0
82.2
101
413056
423056
413156
423156
302
302
308
308
394
397
435
433
6
13.5
8
18.5
4
4
5
5
1.5
1.5
2
2
136
148
168
177
0.37
0.37
0.40
0.40
1.80
1.80
1.68
1.68
2.69
2.69
2.50
2.50
1.76
1.76
1.64
1.64
47.2
57.3
87.4
109
413060
423060
413160
423160
322
322
328
328
428
434
471
464
6.5
15
9
20
4
4
5
5
1.5
1.5
2
2
151
163
182
202
0.37
0.37
0.40
0.40
1.80
1.80
1.68
1.68
2.69
2.69
2.50
2.50
1.76
1.76
1.64
1.64
65.6
80.2
115
144
413064
423064
413164
423164
342
342
348
348
449
455
505
502
6.5
15
9.5
22
4
4
5
5
1.5
1.5
2
2
157
170
197
217
0.37
0.37
0.40
0.40
1.80
1.80
1.68
1.68
2.69
2.69
2.50
2.50
1.76
1.76
1.64
1.64
70.9
85.4
150
188
413068
368
488
7.5
5
2
170
0.37
1.8
2.69
1.76
89.2
B-207
● Double Row Tapered Roller Bearings
Back-to-back arrangement
B1
C
r1
r
φD
φd
a
d 340 ∼ 480mm
Boundary dimensions
Basic load ratings
static
dynamic
dynamic
mm
C
kN
rs min1）
d
D
B1
340
520
580
580
165
190
238
133
169
190
6
6
6
360
540
540
600
600
134
169
192
240
120
134
171
192
380
560
560
620
620
135
171
194
243
400
600
600
650
650
r1s min1）
Limiting speeds
static
min-1
kgf
Cr
Cor
2
2
2
1 890
2 690
3 350
6
6
6
6
2
2
2
2
122
135
173
194
6
6
6
6
148
185
200
250
132
148
178
200
420
620
620
700
700
150
188
224
280
440
650
650
720
720
grease
oil
Cr
Cor
3 750
4 900
6 500
193 000
274 000
345 000
380 000
500 000
660 000
500
460
460
660
620
620
1 470
2 050
2 720
3 200
2 810
4 200
5 050
6 500
150 000
209 000
277 000
325 000
287 000
430 000
515 000
660 000
460
460
430
430
620
620
580
580
2
2
2
2
1 690
2 080
2 840
3 350
3 350
4 350
5 250
6 700
172 000
213 000
289 000
340 000
340 000
445 000
535 000
685 000
440
440
410
410
580
580
540
540
6
6
6
6
2
2
3
3
1 860
2 530
3 000
3 750
3 700
5 450
5 800
7 850
190 000
258 000
305 000
385 000
375 000
555 000
590 000
800 000
410
410
380
380
550
550
510
510
134
150
200
224
6
6
6
6
2
2
3
3
2 110
2 650
3 700
4 800
4 250
5 900
7 200
9 700
215 000
270 000
375 000
490 000
435 000
600 000
735 000
990 000
390
390
360
360
520
520
480
480
157
196
226
283
140
157
201
226
6
6
6
6
3
3
3
3
2 470
2 600
4 000
5 000
5 150
5 450
7 800
10 300
252 000
266 000
410 000
510 000
525 000
560 000
795 000
1 050 000
370
370
340
340
490
490
460
460
460
680
680
760
760
163
204
240
300
145
163
214
240
6
6
7.5
7.5
3
3
4
4
2 600
3 050
4 550
4 900
5 350
6 600
9 150
10 300
265 000
310 000
465 000
500 000
550 000
670 000
930 000
1 050 000
350
350
320
320
470
470
430
430
480
700
700
790
790
165
206
248
310
147
165
221
248
6
6
7.5
7.5
3
3
4
4
2 490
3 050
4 800
5 300
5 000
6 700
9 600
11 100
254 000
310 000
490 000
540 000
510 000
685 000
975 000
1 130 000
330
330
310
310
450
450
410
410
1）Minimum allowable dimension for chamfer dimension r or r1.
B-208
● Double Row Tapered Roller Bearings
Sb
r1a
Equivalent radial load
dynamic
Pr＝XFr＋YFa
Fa
Fa
≦e
Fr
Fr ＞e
X Y
X
Y
1 Y1 0.67 Y2
static
Por＝Fr＋YoFa
For values of e, Y2 and Yo
see the table below.
ra
φDb
φda
Bearing numbers
Abutment and fillet dimensions
Load
center
mm
mm
da
Db
Sb
ras
r1as
min
min
min
max
max
a
Constant
Axial load factors
Mass
kg
e
Y1
Y2
Yo
(approx.)
423068
413168
423168
368
368
368
489
548
542
16
10.5
24
5
5
5
2
2
2
184
213
237
0.37
0.40
0.40
1.80
1.68
1.68
2.69
2.50
2.50
1.76
1.64
1.64
113
188
235
413072
423072
413172
423172
388
388
388
388
507
509
561
560
7
17.5
10.5
24
5
5
5
5
2
2
2
2
176
192
219
240
0.37
0.37
0.40
0.40
1.80
1.80
1.68
1.68
2.69
2.69
2.50
2.50
1.76
1.76
1.64
1.64
92.7
120
199
248
413076
423076
413176
423176
408
408
408
408
528
529
583
578
6.5
18
10.5
24.5
5
5
5
5
2
2
2
2
183
196
225
249
0.37
0.37
0.40
0.40
1.80
1.80
1.68
1.68
2.69
2.69
2.50
2.50
1.76
1.76
1.64
1.64
95.9
126
210
262
413080
423080
413180
423180
428
428
428
428
564
564
610
610
8
18.5
11
25
5
5
5
5
2
2
2.5
2.5
194
210
232
256
0.37
0.37
0.40
0.40
1.80
1.80
1.68
1.68
2.69
2.69
2.50
2.50
1.76
1.76
1.64
1.64
105
163
236
294
413084
423084
413184
423184
448
448
448
448
586
583
655
659
8
19
12
28
5
5
5
5
2
2
2.5
2.5
200
220
258
287
0.37
0.37
0.40
0.40
1.80
1.80
1.68
1.68
2.69
2.69
2.50
2.50
1.76
1.76
1.64
1.64
135
172
317
394
413088
423088
413188
423188
468
468
468
468
614
614
675
678
8.5
19.5
12.5
28.5
5
5
5
5
2.5
2.5
2.5
2.5
208
229
263
288
0.37
0.37
0.40
0.40
1.80
1.80
1.68
1.68
2.69
2.69
2.50
2.50
1.76
1.76
1.64
1.64
160
198
330
412
413092
423092
413192
423192
488
488
496
496
646
644
714
712
9
20.5
13
30
5
5
6
6
2.5
2.5
3
3
217
239
276
305
0.37
0.37
0.40
0.40
1.80
1.80
1.68
1.68
2.69
2.69
2.50
2.50
1.76
1.76
1.64
1.64
179
225
395
493
413096
423096
413196
423196
508
508
516
516
665
664
743
738
9
20.5
13.5
31
5
5
6
6
2.5
2.5
3
3
223
246
281
329
0.37
0.37
0.40
0.40
1.80
1.80
1.68
1.68
2.69
2.69
2.50
2.50
1.76
1.76
1.64
1.64
189
236
442
548
B-209
● Double Row Tapered Roller Bearings
Back-to-back arrangement
B1
C
r1
r
φD
φd
a
d 500mm
Boundary dimensions
Basic load ratings
static
dynamic
dynamic
mm
d
D
B1
500
720
720
830
830
167
209
264
330
C
149
167
235
264
kN
rs min1）
6
6
7.5
7.5
r1s min1）
3
3
4
4
Cor
2 610
3 050
5 200
6 400
5 400
6 900
10 500
14 000
B-210
min-1
kgf
Cr
1）Minimum allowable dimension for chamfer dimension r or r1.
Limiting speeds
static
Cr
266 000
315 000
530 000
650 000
Cor
550 000
700 000
1 070 000
1 420 000
grease
320
320
290
290
oil
420
420
390
390
● Double Row Tapered Roller Bearings
Sb
r1a
Equivalent radial load
dynamic
Pr＝XFr＋YFa
Fa
Fa
≦e
Fr
Fr ＞e
X Y
X
Y
1 Y1 0.67 Y2
static
Por＝Fr＋YoFa
For values of e, Y2 and Yo
see the table below.
ra
φDb
φda
Bearing numbers
Abutment and fillet dimensions
Load
center
mm
mm
4130/500
4230/500
4131/500
5E-4231/500G2
da
Db
Sb
ras
r1as
min
min
min
max
max
5
5
6
6
2.5
2.5
3
3
528
528
536
536
686
683
780
773
9
21
14.5
33
B-211
a
230
250
296
331
Constant
Axial load factors
Mass
kg
e
Y1
Y2
0.37
0.37
0.40
0.40
1.80
1.80
1.68
1.68
2.69
2.69
2.50
2.50
Yo
1.76
1.76
1.64
1.64
(approx.)
202
247
528
678
● Double Row Tapered Roller Bearings
Face-to-face arrangement
C1
r
r1
B
φD
φd
a
d 110 ∼ 280mm
Boundary dimensions
Basic load ratings
static
dynamic
dynamic
mm
kN
r1s min1）
rs min1）
56
2.5
46
62
46
62
200
210
52
64
140
210
225
150
Limiting speeds
static
min-1
kgf
grease
oil
49 500
1 600
2 200
23 500
38 000
38 000
62 500
1 500
1 500
2 100
2 000
490
675
29 900
42 000
50 000
69 000
1 400
1 400
1 900
1 800
300
390
535
650
30 500
40 000
54 500
66 000
1 300
1 200
1 800
1 700
2.5
2.5
355
600
630
1 040
36 000
61 500
64 500
106 000
1 200
1 200
1 600
1 500
3
3
2.5
2.5
430
675
765
1 180
44 000
69 000
78 000
120 000
1 100
1 100
1 500
1 400
67
88
3
3
2.5
2.5
490
725
865
1 270
50 000
74 000
88 000
130 000
1 100
1 000
1 400
1 300
74
96
74
96
3
4
2.5
3
580
885
1 050
1 530
59 500
90 500
107 000
156 000
1 000
940
1 300
1 300
290
320
75
104
75
104
3
4
2.5
3
615
985
1 110
1 710
63 000
100 000
113 000
174 000
940
890
1 300
1 200
200
310
340
82
112
82
112
3
4
2.5
3
720
1 090
1 320
1 910
73 000
111 000
135 000
195 000
900
840
1 200
1 100
220
340
370
90
120
90
120
4
5
3
4
880
1 220
1 650
2 260
89 500
125 000
168 000
230 000
810
760
1 100
1 000
240
360
400
92
128
92
128
4
5
3
4
910
1 400
1 770
2 600
92 500
142 000
181 000
265 000
730
690
980
920
260
400
440
104
144
104
144
5
5
4
4
1 150
1 960
2 190
3 750
117 000
200 000
223 000
380 000
670
630
900
840
280
420
106
106
5
4
1 200
2 340
123 000
238 000
620
820
d
D
B
C1
Cr
Cor
Cr
110
180
56
2
298
485
30 500
120
180
200
2.5
2.5
2
2
230
370
375
610
130
52
64
2.5
2.5
2
2
294
410
53
68
53
68
2.5
3
2
2.5
225
250
56
80
56
80
3
3
160
240
270
60
86
60
86
170
260
280
67
88
180
280
300
190
1）Minimum allowable dimension for chamfer dimension r or r1.
B-212
Cor
● Double Row Tapered Roller Bearings
Sa
r1a
Equivalent radial load
dynamic
Pr＝XFr＋YFa
Fa
Fa
≦e
Fr
Fr ＞e
X Y
X
Y
1 Y1 0.67 Y2
static
Por＝Fr＋YoFa
For values of e, Y2 and Yo
see the table below.
ra
φDa
φda
Bearing numbers
Abutment and fillet dimensions
Load Constant
center
mm
mm
da
Da
Sa
r1as
ras
Mass
kg
e
Y1
Y2
Yo
(approx.)
1
0.33
2.03
3.02
1.98
5.6
2
2
12
6.5
0.37
0.37
1.80
1.80
2.69
2.69
1.76
1.76
4.08
7.82
2
2
2
2
13.5
7.5
0.37
0.37
1.80
1.80
2.69
2.69
1.76
1.76
5.92
8.58
8
10
2
2.5
2
2
10
8
0.37
0.37
1.84
1.80
2.74
2.69
1.80
1.76
6.4
10.7
205
220
10
10
2.5
2.5
2
2
15.5
6.5
0.37
0.37
1.80
1.80
2.69
2.69
1.76
1.76
7.76
15.7
228
258
215
240
10
10
2.5
2.5
2
2
17.5
8
0.37
0.37
1.80
1.80
2.69
2.69
1.76
1.76
9.46
20
185
188
248
268
235
250
10
10
2.5
2.5
2
2
18
8.5
0.37
0.37
1.80
1.80
2.69
2.69
1.76
1.76
12.8
21.5
323036E1
323136E1
198
200
268
286
250
265
10
12
2.5
3
2
2.5
17
8
0.37
0.37
1.80
1.80
2.69
2.69
1.76
1.76
16.5
27.2
323038E1
323138
208
212
278
306
260
285
12
12
2.5
3
2
2.5
17.5
8.5
0.37
0.37
1.80
1.80
2.69
2.69
1.76
1.76
17.9
34
323040E1
323140
218
222
298
326
280
300
12
12
2.5
3
2
2.5
19
8.5
0.37
0.37
1.80
1.80
2.69
2.69
1.76
1.76
21.7
41.7
323044E1
323144
242
248
326
352
310
325
12
14
3
4
2.5
3
21.5
14
0.37
0.40
1.80
1.68
2.69
2.50
1.76
1.64
29.8
52.2
323048E1
323148
269
268
346
382
321.5
355
14
14
3
4
2.5
3
25.5
17
0.37
0.40
1.80
1.68
2.69
2.50
1.76
1.64
32.6
64.6
323052
323152
285
290
382
422
365
385
14
16
4
4
3
3
25
16.5
0.37
0.40
1.80
1.68
2.69
2.50
1.76
1.64
47.3
90
323056
305
402
385
16
4
3
29.5
0.37
1.80
2.69
1.76
51.2
max
max
min
min
max
max
323122
124
170
160
8
2
2
323024
323124
134
134
170
190
164
175
8
8
2
2
323026
323126
144
144
190
200
184
185
8
8
323028
323128
155
156
200
213
190
200
323030
323130
165
168
213
238
323032
323132E1
175
178
323034
323134E1
B-213
a
Axial load factors
● Double Row Tapered Roller Bearings
Face-to-face arrangement
C1
r
r1
B
φD
φd
a
d 280 ∼ 500mm
Boundary dimensions
Basic load ratings
static
dynamic
dynamic
mm
kN
r1s min1）
rs min1）
146
6
5
1 940
118
160
118
160
5
6
4
5
480
540
121
176
121
176
5
6
340
520
580
133
190
133
190
360
540
600
134
192
380
560
620
400
d
D
B
280
460
146
300
460
500
320
C1
Cr
Limiting speeds
static
min-1
kgf
Cor
grease
oil
Cr
Cor
3 650
198 000
375 000
580
770
1 610
2 100
3 150
4 050
165 000
214 000
320 000
415 000
570
530
760
710
4
5
1 580
2 500
3 100
4 900
162 000
255 000
315 000
500 000
530
500
710
660
6
6
5
5
1 890
3 350
3 750
6 500
193 000
345 000
380 000
660 000
500
460
660
620
134
192
6
6
5
5
2 050
3 200
4 200
6 500
209 000
325 000
430 000
660 000
460
430
620
580
135
194
135
194
6
6
5
5
2 080
3 350
4 350
6 700
213 000
340 000
445 000
685 000
440
410
580
540
600
650
148
200
148
200
6
6
5
6
2 530
3 750
5 450
7 850
258 000
385 000
555 000
800 000
410
380
550
510
420
620
700
150
224
150
224
6
6
5
6
2 650
4 800
5 900
9 700
270 000
490 000
600 000
990 000
390
360
520
480
440
650
720
157
226
157
226
6
6
6
6
2 600
5 000
5 450
10 300
266 000
510 000
560 000
1 050 000
370
340
490
460
460
680
760
163
240
163
240
6
7.5
6
7.5
3 050
4 900
6 600
10 300
310 000
500 000
670 000
1 050 000
350
320
470
430
480
700
790
165
248
165
248
6
7.5
6
7.5
3 050
5 300
6 700
11 100
310 000
540 000
685 000
1 130 000
330
310
450
410
500
720
830
167
264
167
264
6
7.5
6
7.5
3 050
6 400
6 900
14 000
315 000
650 000
700 000
1 420 000
320
290
420
390
1）Minimum allowable dimension for chamfer dimension r or r1.
B-214
● Double Row Tapered Roller Bearings
Sa
r1a
Equivalent radial load
dynamic
Pr＝XFr＋YFa
Fa
Fa
≦e
Fr
Fr ＞e
X Y
X
Y
1 Y1 0.67 Y2
static
Por＝Fr＋YoFa
For values of e, Y2 and Yo
see the table below.
ra
φDa
φda
Bearing numbers
Abutment and fillet dimensions
Load Constant
center
mm
mm
da
Da
Sa
r1as
ras
min
max
max
Mass
kg
e
Y1
Y2
Yo
16
0.40
1.68
2.50
1.64
95.8
3
4
31
18
0.37
0.40
1.80
1.68
2.69
2.50
1.76
1.64
70.7
126
4
5
3
4
34
18.5
0.37
0.40
1.80
1.68
2.69
2.50
1.76
1.64
76.3
164
18
18
5
5
4
4
36
35.5
0.37
0.40
1.80
1.68
2.69
2.50
1.76
1.64
101
207
495
535
18
18
5
5
4
4
41
25.5
0.37
0.40
1.80
1.68
2.69
2.50
1.76
1.64
107
218
538
598
515
550
18
20
5
5
4
4
44.5
29
0.37
0.40
1.80
1.68
2.69
2.50
1.76
1.64
113
229
440
445
578
622
550
580
18
20
5
5
4
5
45
32.5
0.37
0.40
1.80
1.68
2.69
2.50
1.76
1.64
146
259
323084
323184
460
465
598
672
570
625
20
25
5
5
4
5
48.5
60
0.37
0.40
1.80
1.68
2.69
2.50
1.76
1.64
154
346
323088
323188
480
485
622
692
600
645
20
25
5
5
5
5
53.5
44
0.37
0.40
1.80
1.68
2.69
2.50
1.76
1.64
177
361
323092
323192
500
510
652
724
620
680
25
25
5
6
5
6
56.5
34.5
0.37
0.40
1.80
1.68
2.69
2.50
1.76
1.64
201
433
323096
323196
520
530
672
754
640
705
25
30
5
6
5
6
63
36
0.37
0.40
1.80
1.68
2.69
2.50
1.76
1.64
211
481
540
550
692
794
655
740
25
30
5
6
5
6
61.5
37.5
0.37
0.40
1.80
1.68
2.69
2.50
1.76
1.64
221
570
max
max
min
323156
315
438
400
16
5
4
323060
323160
330
335
442
478
425
440
16
16
4
5
323064
323164
350
355
462
518
440
480
16
18
323068
323168
370
380
498
558
480
515
323072
323172
395
400
518
578
323076
323176
415
420
323080
323180
3230/500
5E-3231/500G2
B-215
a
Axial load factors
(approx.)
● Four Row Tapered Roller Bearings
C2
r
r1
B2
φD φDa
φd φda
Sa
d 120 ∼ 187.325mm
Boundary dimensions
Basic load ratings
static
dynamic
dynamic
mm
d
D
B2
kN
C2
r1s min1）
rs min1）
Cr
static
kgf
Cor
Cr
Cor
120
170
210
124
174
124
174
2.5
2.5
2
2.5
390
855
1 020
1 710
40 000
87 500
104 000
174 000
120.650
174.625
141.288
139.703
0.8
1.5
510
1 220
52 000
124 000
127
182.562
158.750
158.750
1.5
3.3
660
1 730
67 000
177 000
130
184
134
134
2.5
2
480
1 190
49 000
122 000
135
180
160
160
1
2
500
1 360
51 000
138 000
136.525
190.500
161.925
161.925
1.5
3.3
695
1 900
71 000
193 000
139.700
200.025
157.165
160.340
0.8
3.3
700
1 950
71 500
199 000
140
198
144
144
2.5
2
575
1 460
58 500
149 000
146.050
244.475
192.088
187.325
1.5
3.3
955
1 980
97 000
202 000
150
212
155
155
3
2.5
660
1 700
67 500
173 000
152.400
222.250
174.625
174.625
1.5
1.5
930
2 350
94 500
239 000
160
226
265
165
173
165
173
3
2.5
2.5
2.5
775
1 100
2 030
2 270
79 000
112 000
207 000
231 000
165.100
225.425
165.100
168.275
0.8
3.3
745
2 220
76 000
226 000
170
240
280
175
181
175
181
3
2.5
2.5
2.5
835
1 150
2 200
2 420
85 500
117 000
224 000
247 000
177.800
247.650
279.400
304.800
192.088
234.950
238.227
192.088
234.947
233.365
1.5
1.5
3.3
3.3
3.3
3.3
1 000
1 420
1 580
2 760
3 400
3 100
102 000
145 000
161 000
281 000
345 000
320 000
180
254
300
185
280
185
280
3
3
2.5
3
910
2 160
2 390
4 800
93 000
220 000
244 000
490 000
187.325
269.875
211.138
211.138
1.5
3.3
1 240
3 400
127 000
345 000
1）Minimum allowable dimension for chamfer dimension r or r1.
B-216
● Four Row Tapered Roller Bearings
Bearing numbers
Abutment and fillet dimensions
Mass
mm
kg
da
Da
Sa
(approx.)
E-625924
E-CRO-2418
135
140
155.5
190
5
4.5
8.97
22.2
＊ E-M224749D/M224710/M224710D
129
163
3
11.5
＊ T-E-48290D/48220/48220D
137
168
4.5
14.3
E-625926
144.5
169
5
11.3
E-CRO-2701
143
165
2
13.5
＊ T-E-48393D/48320/48320D
144
177
4
14.8
＊ T-E-48680D/48620/48620D
150
185
3
17.3
E-625928
156
183
5
14
＊ E-81576D/81962/81963D
163
225
6.5
36.8
E-625930
167.5
195
5.5
16.9
＊ T-E-M231649D/M231610/M231610D
165
207
4
24.7
E-625932
E-CRO-3209
177.5
184
208.5
247
5.5
4.5
20.2
33.6
＊ T-E-46791D/46720/46721D
175
209
3
20.7
E-625934
E-CRO-3409
187.5
192
220
255
5.5
5
24.4
44
＊ E-67791D/67720/67721D
＊ E-82681D/82620/82620D
＊ E-EE280700D/281200/281201D
190
195
198
229
251
279
5
5
7
29.4
55.3
69.9
E-625936
E-CRO-3617
200.5
201
233.5
274
5.5
5
28.9
69.4
＊ E-M238849D/M238810/M238810D
199.9
250
4
41.8
Note: 1. Bearing numbers marked " ＊ " designate inch series bearings.
B-217
● Four Row Tapered Roller Bearings
C2
r
r1
B2
φD φDa
φd φda
Sa
d 190 ∼ 260mm
Boundary dimensions
Basic load ratings
static
dynamic
dynamic
mm
kN
static
kgf
r1s min1）
rs min1）
Cr
196
190
225.425
3
2.5
1.5
2.5
2.5
3.3
1 060
1 080
1 570
2 850
2 940
4 150
108 000
111 000
160 000
291 000
300 000
425 000
187.325
188.912
1.5
3.3
1 040
2 990
106 000
305 000
282
290
310
206
160
200
206
160
200
3
2.5
3
2.5
2.5
3
1 200
925
1 360
3 300
2 210
2 980
122 000
94 500
138 000
335 000
226 000
305 000
203.200
317.500
215.900
209.550
3.3
3.3
1 270
2 820
129 000
288 000
215.900
288.925
177.800
177.800
0.8
3.3
1 090
3 100
111 000
315 000
220
310
226
226
4
3
1 380
3 800
141 000
385 000
220.662
314.325
239.712
239.712
1.5
3.3
1 840
4 900
187 000
500 000
228.600
425.450
349.250
361.950
3.5
6.4
3 450
8 250
355 000
845 000
234.950
327.025
196.850
196.850
1.5
3.3
1 370
3 700
140 000
380 000
240
338
248
248
4
3
1 870
4 950
191 000
505 000
241.478
350.838
228.600
228.600
1.5
3.3
1 770
4 550
180 000
465 000
244.475
327.025
381.000
193.675
304.800
193.675
304.800
1.5
3.3
3.3
4.8
1 430
2 220
4 100
5 750
146 000
227 000
415 000
590 000
250
365
370
270
220
270
220
1.5
4
3
4
2 150
2 050
6 150
5 750
219 000
209 000
630 000
590 000
254
358.775
368.300
444.500
269.875
204.622
279.400
269.875
204.470
279.400
3.3
1.5
3.3
3.3
3.3
6.4
2 390
1 350
2 890
6 550
3 250
5 900
244 000
138 000
294 000
670 000
330 000
600 000
260
368
400
268
255
268
255
5
4
4
7.5
1 990
2 210
5 700
5 300
203 000
225 000
580 000
540 000
d
D
B2
190
268
270
292.100
196
190
225.425
190.500
266.700
200
C2
1）Minimum allowable dimension for chamfer dimension r or r1.
B-218
Cor
Cr
Cor
● Four Row Tapered Roller Bearings
Bearing numbers
Abutment and fillet dimensions
Mass
mm
kg
da
Da
E-625938
E-CRO-3812
＊ E-M241538D/M241510/M241510D
209
205
222
245.5
250
271
6
6
5
34.7
34.7
59.6
＊ T-E-67885D/67820/67820D
204
246
3
33.6
E-625940
E-CRO-4013
E-CRO-4014
219.5
221
222
258
271
284
6
5
6
40.5
35.1
48.4
＊ E-EE132082D/132125/132126D
224
294
9.5
62.5
＊ E-LM742749D/LM742714/LM742714D
227
267
5
34.3
E-625944
242
284.5
6
53.5
＊ T-E-M244249D/M244210/M244210D
235
293
4
60.2
＊ E-EE700090D/700167/700168D
263
381
3
＊ T-E-8576D/8520/8520D
250
305
5
53.6
E-625948A
260.5
312
6
70
＊ E-EE127097D/127137/127137D
262
325
6.5
76.4
＊ E-LM247748D/LM247710/LM247710DA
＊ E-EE126096D/126150/126151D
257
262
310
343
5
6.5
46.1
132
E-CRO-5004
E-CRO-5001
275
276
339
344
5
6
82.1
87
＊ T-E-M249748D/M249710/M249710D
＊ E-EE171000D/171450/171451D
＊ E-EE822101D/822175/822176D
272.5
269
289
335
340
406
5
6
8
85.6
71.8
185
E-625952
E-CRO-5215
287
290
338.5
359
6
8
90.3
106
Note: 1. Bearing numbers marked " ＊ " designate inch series bearings.
B-219
Sa
(approx.)
232
● Four Row Tapered Roller Bearings
C2
r
r1
B2
φD φDa
φd φda
Sa
d 260.350 ∼ 304.800mm
Boundary dimensions
Basic load ratings
static
dynamic
dynamic
mm
kN
static
kgf
r1s min1）
rs min1）
Cr
228.600
253.995
317.500
3.3
1.5
6.4
6.4
6.4
3.3
1 750
2 090
2 980
4 550
4 950
7 100
178 000
213 000
305 000
465 000
505 000
725 000
230.188
269.878
228.600
269.878
1.5
3.3
3.3
6.4
1 840
2 110
5 350
6 000
188 000
216 000
545 000
610 000
381.000
282.575
282.575
3.3
3.3
2 470
6 850
252 000
700 000
270
410
222
222
4
4
1 910
4 550
195 000
465 000
275
385
200
200
3
3
1 610
4 250
165 000
435 000
276.225
406.400
268.290
260.355
1.5
6.4
2 110
6 000
216 000
610 000
279.400
469.900
346.075
349.250
6.4
3.3
3 500
8 700
355 000
885 000
279.578
380.898
244.475
244.475
1.5
3.3
1 950
6 200
199 000
635 000
280
395
288
288
5
4
2 560
7 100
261 000
725 000
285.750
380.898
244.475
244.475
1.5
3.3
1 950
6 200
199 000
635 000
288.925
406.400
298.450
298.450
3.3
3.3
2 980
8 300
305 000
850 000
292.100
476.250
296.047
292.100
1.5
3.3
3 050
6 800
310 000
695 000
300
424
460
470
470
310
360
270
292
310
360
270
292
5
4
4
4
4
4
4
4
2 570
4 050
3 200
3 500
7 450
10 100
7 250
8 300
262 000
415 000
325 000
360 000
760 000
1 030 000
740 000
845 000
300.038
422.275
311.150
311.150
3.3
3.3
3 350
9 600
340 000
980 000
304.648
438.048
438.048
279.400
280.990
279.400
279.400
3.3
3.3
3.3
4.8
2 470
2 630
6 500
6 900
252 000
268 000
665 000
700 000
304.800
419.100
444.500
269.875
247.650
269.875
241.300
1.5
8
6.4
1.5
2 390
1 850
6 850
4 600
244 000
188 000
695 000
470 000
d
D
B2
260.350
365.125
400.050
422.275
228.600
255.588
314.325
266.700
355.600
393.700
269.875
C2
1）Minimum allowable dimension for chamfer dimension r or r1.
B-220
Cor
Cr
Cor
● Four Row Tapered Roller Bearings
Bearing numbers
Abutment and fillet dimensions
Mass
mm
kg
da
Da
Sa
(approx.)
＊ E-EE134102D/134143/134144D
＊ E-EE221027D/221575/221576D
＊ E-HM252349D/HM252310/HM252310D
282
292
290
340
367
392
6.5
8
5.5
76.5
117
180
＊ T-E-LM451349D/LM451310/LM451310D
＊ E-EE275106D/275155/275156D
281
292
335
367
6.5
5
62
116
＊ E-M252349D/M252310/M252310D
290
356
6
97.5
E-CRO-5403
305
382
6
91
E-CRO-5501
300
355
6
62.5
＊ E-EE275109D/275160/275161D
293.6
366
8
122
＊ E-EE722111D/722185/722186D
316
432
5
258
＊ T-E-LM654644D/LM654610/LM654610D
297
356
5
E-625956
304.5
363.5
7
＊ T-E-LM654648D/LM654610/LM654610D
302
356
5
＊ E-M255449D/M255410/M255410D
310
379
5
125
＊ E-EE921150D/921875/921876D
321
441
7
208
E-625960
E-CRO-6015
☆ E-CRO-6012
☆ E-CRO-6013
329
330
338
336
389.5
427
438
437
7
10
7
7
138
180
152
164
☆＊ T-E-HM256849D/HM256810/HM256810DG2
322
394
6
143
＊ E-EE329119D/329172/329173D
＊ E-M757448D/M757410/M757410D
328
328
409
407
8
7
143
140
＊ E-M257149D/M257110/M257110D
＊ E-EE291202D/291750/291751D
322
328
392
416
5
9.5
115
127
Note: 1. Bearing numbers marked " ＊ " designate inch series bearings.
2. Bearing numbers marked " ☆ " designate bearing with hollow rollers and pin type cages.
B-221
83.2
111
77.9
● Four Row Tapered Roller Bearings
C2
r
r1
B2
φD φDa
φd φda
Sa
d 304.800 ∼ 360mm
Boundary dimensions
Basic load ratings
static
dynamic
dynamic
mm
kN
static
kgf
r1s min1）
rs min1）
Cr
349.250
3.3
6.4
3 650
9 400
370 000
960 000
266.700
266.700
3.3
3.3
2 610
7 450
267 000
760 000
438.048
280.990
279.400
3.3
4.8
2 630
6 900
268 000
700 000
317.500
422.275
447.675
269.875
327.025
269.875
327.025
1.5
3.3
3.3
3.3
2 260
3 400
7 050
9 550
231 000
345 000
715 000
975 000
320
460
338
338
5
4
2 940
8 650
300 000
880 000
330
470
510
340
340
340
340
2.5
6
2.5
6
3 150
3 900
10 200
9 650
320 000
395 000
1 040 000
985 000
330.200
482.600
306.388
311.150
1.5
3.3
2 810
7 900
287 000
805 000
333.375
469.900
342.900
342.900
3.3
3.3
4 000
11 000
405 000
1 130 000
340
480
350
350
6
5
3 450
10 400
350 000
1 060 000
341.312
457.098
254.000
254.000
1.5
3.3
2 370
6 900
241 000
705 000
342.900
533.400
307.985
301.625
3.3
3.3
3 150
6 900
320 000
705 000
343.052
457.098
254.000
254.000
1.5
3.3
2 370
6 900
241 000
705 000
346.075
488.950
358.775
358.775
3.3
3.3
4 350
12 800
445 000
1 300 000
347.662
469.900
292.100
292.100
3.3
3.3
3 200
9 100
325 000
925 000
355
490
316
316
1.5
3.3
3 500
10 000
355 000
1 020 000
355.600
444.500
457.200
482.600
488.950
241.300
252.412
265.112
317.500
241.300
252.412
269.875
317.500
1.5
1.5
1.5
1.5
3.3
3.3
3.3
3.3
1 760
2 470
2 790
3 500
6 200
7 850
7 650
10 000
180 000
251 000
285 000
355 000
635 000
800 000
780 000
1 020 000
360
508
600
370
540
370
540
6
5
5
5
3 700
6 700
11 200
18 100
380 000
685 000
1 140 000
1 840 000
d
D
B2
304.800
495.300
342.900
304.902
412.648
305.003
C2
1）Minimum allowable dimension for chamfer dimension r or r1.
B-222
Cor
Cr
Cor
● Four Row Tapered Roller Bearings
Bearing numbers
Abutment and fillet dimensions
Mass
mm
kg
da
Da
＊ E-EE724121D/724195/724196D
330
450
3
273
＊ E-M257248D/M257210/M257210D
325
388
5
107
＊ E-M757449D/M757410/M757410D
328
407
7
139
＊ E-LM258649D/LM258610/LM258610D
＊ T-E-HM259049D/HM259010/HM259010D
333.3
339.6
398
418
7
5
110
161
E-625964
355
420.5
7
183
E-CRO-6604
E-CRO-6602
366
366
440
469
5.5
5
141
221
＊ E-EE526131D/526190/526191D
351
448
3
197
＊ E-HM261049D/HM261010/HM261010D
357
439
5
187
E-625968
373
440
7
200
＊ E-LM761648D/LM761610/LM761610D
359
432
5
125
＊ E-EE971355D/972100/972103D
378
502
11
252
＊ E-LM761649D/LM761610/LM761610D
361
432
5
117
☆＊ T-E-HM262749D/HM262710/HM262710DG2
371
456
6
227
＊ E-M262449D/M262410/M262410D
369
443
8
148
E-CRO-7105
378
450
7
170
＊ E-L163149D/L163110/L163110D
＊ E-LM263149D/LM263110/LM263110D
＊ E-LM763449D/LM763410/LM763410D
＊ E-M263349D/M263310/M263310D
370
372
375
374
422
434
453
459
6.5
6
3
5
89.5
106
145
173
E-625972
E-CRO-7210
394
400
466.5
550
7
8
236
520
Note: 1. Bearing numbers marked " ＊ " designate inch series bearings.
2. Bearing numbers marked " ☆ " designate bearing with hollow rollers and pin type cages.
B-223
Sa
(approx.)
● Four Row Tapered Roller Bearings
C2
r
r1
B2
φD φDa
φd φda
Sa
d 368.300 ∼ 447.675mm
Boundary dimensions
Basic load ratings
static
dynamic
dynamic
mm
kN
static
kgf
r1s min1）
rs min1）
Cr
Cor
Cr
Cor
382.588
3.3
6.4
4 450
13 100
455 000
1 330 000
250.825
260.350
1.5
3.3
2 360
6 250
241 000
640 000
536
560
390
285
390
285
6
5
5
5
4 900
3 250
14 100
7 700
500 000
330 000
1 440 000
785 000
384.175
546.100
400.050
400.050
3.3
6.4
5 400
16 100
560 000
1 640 000
385.762
514.350
317.500
317.500
3.3
3.3
3 650
11 100
370 000
1 130 000
393.700
546.100
288.925
288.925
1.5
6.4
3 200
10 200
325 000
1 040 000
395
545
268.7
288.7
4
7.5
2 970
8 650
305 000
880 000
400
560
564
380
412
380
412
5
6
5
5
4 800
4 850
14 100
14 700
490 000
495 000
1 440 000
1 500 000
406.400
546.100
590.550
609.600
288.925
400.050
309.562
288.925
400.050
317.500
1.5
3.3
3.5
6.4
6.4
6.4
3 200
4 850
3 700
10 200
13 600
9 600
325 000
490 000
380 000
1 040 000
1 380 000
980 000
409.575
546.100
334.962
334.962
1.5
6.4
4 100
12 700
415 000
1 290 000
415.925
590.550
434.975
434.975
3.3
6.4
6 300
18 900
640 000
1 930 000
420
592
650
432
460
432
460
6
5
5
5
5 350
6 950
16 300
18 300
545 000
710 000
1 660 000
1 870 000
431.800
571.500
571.500
279.400
336.550
279.400
336.550
1.5
1.5
3.3
6.4
3 100
3 700
9 300
11 800
315 000
380 000
950 000
1 200 000
432.003
609.524
317.500
317.500
3.5
6.4
4 350
11 500
445 000
1 170 000
440
620
650
650
454
355
460
454
355
460
6
4
6
6
7.5
6
6 500
5 350
6 750
19 900
13 400
20 700
665 000
545 000
690 000
2 030 000
1 370 000
2 110 000
447.675
635.000
463.550
463.550
3.3
6.4
7 100
22 100
725 000
2 260 000
d
D
B2
368.300
523.875
382.588
374.650
501.650
380
C2
1）Minimum allowable dimension for chamfer dimension r or r1.
B-224
● Four Row Tapered Roller Bearings
Bearing numbers
Abutment and fillet dimensions
Mass
mm
kg
da
Da
Sa
(approx.)
☆＊ E-HM265049D/HM265010/HM265010DG2
393.7
487
6
280
＊ E-LM765149D/LM765110/LM765110D
393
472
2
145
E-625976
E-CRO-7612
410
417
495
525
8
7
277
208
☆＊ T-E-HM266449D/HM266410/HM266410DG2
411
507
6.5
312
＊ E-LM665949D/LM665910/LM665910D
409
482
7
240
＊ E-LM767745D/LM767710/LM767710D
418
510
6.5
219
E-CRO-7901
434
508
3
200
☆ E-CRO-8005
E-625980
426
434
510
518.5
8
7
300
324
＊ E-LM767749D/LM767710/LM767710D
＊ E-EE833161D/833232/833233D
＊ E-EE911603D/912400/912401D
427
448
441
510
549
568
6.5
6.5
1.5
201
395
332
☆＊ E-M667947D/M667911/M667911DG2
431
510
5.5
226
☆＊ T-E-M268749D/M268710/M268710DG2
444
549
9
396
E-625984
E-CRO-8402
457
455
545
593
7
8
374
600
＊ E-LM869449D/LM869410/LM869410D
＊ E-LM769349D/LM769310/LM769310D
453
453
537
534
8
6.5
198
232
＊ E-EE736173D/736238/736239D
464
572
6.5
297
E-625988
☆ E-CRO-8807
E-CRO-8806
479
484
483
572.5
607
595
☆＊ E-M270749D/M270710/M270710DAG2
478
591
Note: 1. Bearing numbers marked " ＊ " designate inch series bearings.
2. Bearing numbers marked " ☆ " designate bearing with hollow rollers and pin type cages.
B-225
8
9
11
430
400
600
8
509
● Four Row Tapered Roller Bearings
C2
r
r1
B2
φD φDa
φd φda
Sa
d 457.200 ∼ 571.500mm
Boundary dimensions
Basic load ratings
static
dynamic
dynamic
mm
kN
static
kgf
r1s min1）
rs min1）
Cr
Cor
Cr
Cor
279.400
323.847
1.5
3.3
3.3
6.4
3 350
4 150
10 300
11 200
360 000
425 000
1 060 000
1 140 000
474
474
6
6
6 500
19 900
665 000
2 030 000
660
450
450
3
5
6 300
20 400
645 000
2 080 000
480
678
700
494
390
494
390
6
6
6
6
6 250
4 700
19 600
13 400
640 000
480 000
2 000 000
1 370 000
482.600
615.950
330.200
330.200
3.3
6.4
4 000
13 400
405 000
1 370 000
488.950
660.400
365.125
361.950
8
6.4
5 350
16 100
550 000
1 640 000
489.026
634.873
320.675
320.675
3.3
3.3
3 650
12 000
370 000
1 220 000
500
670
690
705
730
515
480
515
440
515
480
515
440
1.5
5
6
6
5
5
6
6
6 900
6 000
8 450
7 200
24 600
19 900
27 100
20 600
700 000
610 000
860 000
735 000
2 510 000
2 020 000
2 760 000
2 100 000
501.650
711.200
520.700
520.700
3.3
6.4
8 650
27 300
885 000
2 790 000
514.350
673.100
422.275
422.275
3.3
6.4
5 950
20 500
605 000
2 090 000
519.112
736.600
536.575
536.575
3.3
6.4
9 100
28 700
925 000
2 930 000
520
735
535
535
7
5
9 100
28 700
925 000
2 930 000
536.575
761.873
558.800
558.800
3.3
6.4
10 100
30 500
1 030 000
3 100 000
558.800
736.600
736.600
322.265
409.575
322.268
409.575
3.3
3.3
6.4
6.4
4 300
6 100
13 500
20 500
435 000
625 000
1 380 000
2 090 000
570
780
810
515
590
515
590
6
6
6
6
9 200
11 000
31 000
35 500
935 000
1 120 000
3 150 000
3 600 000
571.500
812.800
593.725
593.725
3.3
6.4
11 900
36 500
1 220 000
3 750 000
d
D
B2
457.200
596.900
660.400
276.225
323.850
460
650
475
C2
1）Minimum allowable dimension for chamfer dimension r or r1.
B-226
● Four Row Tapered Roller Bearings
Bearing numbers
Abutment and fillet dimensions
Mass
mm
kg
da
Da
Sa
☆＊ E-L770849D/L770810/L770810DG2
＊ E-EE737179D/737260/737260D
478
495
567
616
5.5
6.5
209
379
E-625992A
499
598.5
7
493
E-CRO-9501
506
614
10
465
E-625996
E-CRO-9602
525
517
623
645
7
8
563
436
☆＊ E-LM272249D/LM272210/LM272210DG2
504
585
6.5
250
☆＊ T-E-EE640193D/640260/640261DG2
519
624
9
364
＊ E-LM772749D/LM772710/LM772710D
513
600
6.5
268
E-CRO-10008
E-CRO-10005
☆ E-6259/500
☆ E-CRO-10003
520
530
553
550
616
640
649.5
683
8
7
7.5
11
598
600
632
535
☆＊ E-M274149D/M274110/M274110DG2
534
663
9.5
726
＊ E-LM274449D/LM274410/LM274410D
540
648
8
390
☆＊ E-M275349D/M275310/M275310DG2
552
684
9.5
761
☆ E-CRO-10402
558
688
☆＊ E-M276449D/M276410/M276410DG2
564
711
9.5
890
＊ E-EE843221D/843290/843291D
☆＊ E-LM377449D/LM377410/LM377410DG2
585
588
699
696
8.5
8
388
502
☆ E-CRO-11402
☆ E-CRO-11403
609
620
733
760
7.5
10
625
845
☆＊ E-M278749D/M278710/M278710DAG2
609
756
11
Note: 1. Bearing numbers marked " ＊ " designate inch series bearings.
2. Bearing numbers marked " ☆ " designate bearing with hollow rollers and pin type cages.
B-227
11
(approx.)
750
1 080
● Four Row Tapered Roller Bearings
C2
r
r1
B2
φD φDa
φd φda
Sa
d 584.200 ∼ 840mm
Boundary dimensions
Basic load ratings
static
dynamic
dynamic
mm
kN
static
kgf
r1s min1）
rs min1）
Cr
Cor
Cr
Cor
401.638
3.3
6.4
6 550
22 300
670 000
2 280 000
479.425
479.425
3.3
6.4
7 350
25 700
750 000
2 620 000
844.550
615.950
615.950
3.3
6.4
12 600
40 500
1 290 000
4 100 000
609.600
787.400
361.950
361.950
3.3
6.4
6 450
20 300
655 000
2 070 000
657.225
933.450
676.275
676.275
3.3
6.4
15 300
48 000
1 560 000
4 900 000
642
642
7.5
7.5
15 400
43 500
1 570 000
4 450 000
d
D
B2
584.200
762.000
396.875
585.788
771.525
595.312
660
1 070
C2
660.400
812.800
365.125
365.125
3.3
6.4
6 200
23 200
630 000
2 360 000
679.450
901.700
552.450
552.450
3.3
6.4
11 200
38 000
1 140 000
3 900 000
680
870
460
460
3
6
7 500
27 400
765 000
2 790 000
682.625
965.200
701.675
701.675
3.3
6.4
16 100
50 500
1 640 000
5 150 000
685.800
876.300
352.425
355.600
3.3
6.4
6 050
21 800
615 000
2 220 000
710
900
410
410
2.5
5
7 650
26 900
780 000
2 740 000
711.200
914.400
317.500
317.500
3.3
6.4
5 350
17 900
545 000
1 820 000
730
1 070
642
642
7.5
7.5
15 400
46 500
1 570 000
4 750 000
730.250
1 035.050
755.650
755.650
3.3
6.4
18 100
59 500
1 850 000
6 050 000
749.300
990.600
605.000
605.000
3.3
6.4
12 600
45 500
1 290 000
4 650 000
762.000
1 079.500
787.400
787.400
4.8
12.7
19 200
65 000
1 960 000
6 600 000
800
1 120
820
820
7
7.5
21 000
72 500
2 140 000
7 400 000
825.500
1 168.400
844.550
844.550
4.8
12.7
22 300
76 500
2 270 000
7 800 000
840
1 170
840
840
6
6
21 900
76 500
2 230 000
7 800 000
1）Minimum allowable dimension for chamfer dimension r or r1.
B-228
● Four Row Tapered Roller Bearings
Bearing numbers
Abutment and fillet dimensions
Mass
mm
kg
da
Da
☆＊ E-LM778549D/LM778510/LM778510DG2
615
717
7
511
＊ E-LM278849D/LM278810/LM278810D
615
726
10
750
☆＊ E-M280049D/M280010/M280010DG2
633
786
11
1 160
☆＊ E-EE649241D/649310/649311DG2
636
747
☆＊ E-M281649D/M281610/M281610DG2
699
870
11
1 630
☆ E-CRO-13202
760
991
9
1 950
☆＊ E-L281149D/L281110/L281110DG2
682.8
777
9
448
☆＊ E-LM281849D/LM281810/LM281810DG2
714
852
11
1 040
E-CRO-13602
713
824
8
582
☆＊ E-M282249D/M282210/M282210DG2
723
900
13
1 770
☆＊ E-EE655271D/655345/655346DG2
717
831
8
539
☆ E-CRO-14208
745
850
10
620
☆＊ E-EE755281D/755360/755361DG2
744
873
☆ E-CRO-14601
780
1 020
7
1 900
☆＊ E-M283449D/M283410/M283410DG2
774
966
13
2 210
☆＊ E-LM283649D/LM283610/LM283610DG2
786
936
10.5
1 310
☆＊ E-M284249D/M284210/M284210DG2
810
1 005
13
2 480
☆ E-CRO-16001
858
1 052
10
3 960
☆＊ E-M285848D/M285810/M285810DG2
879
1 085
13
3 010
☆ E-CRO-16803
897
1 099
12
3 970
Note: 1. Bearing numbers marked " ＊ " designate inch series bearings.
2. Bearing numbers marked " ☆ " designate bearing with hollow rollers and pin type cages.
B-229
Sa
9.5
9.5
(approx.)
458
527
● Four Row Tapered Roller Bearings
C2
r
r1
B2
φD φDa
φd φda
Sa
d 863.600 ∼ 1 200.150mm
Boundary dimensions
Basic load ratings
static
dynamic
dynamic
mm
d
kN
r1s min1）
rs min1）
D
B2
863.600
1 130.300
1 219.200
669.925
876.300
669.925
889.000
4.8
4.8
12.7
12.7
15 800
24 100
59 500
83 000
1 610 000
2 450 000
6 050 000
8 450 000
938.212
1 270.000
825.500
825.500
4.8
12.7
22 500
80 000
2 300 000
8 150 000
950
1 360
880
880
4
7.5
27 000
89 000
2 750 000
9 050 000
1 593.850
990.600
990.600
4.8
12.7
33 500
132 000
3 400 000
13 500 000
1 200.150
C2
1）Minimum allowable dimension for chamfer dimension r or r1.
B-230
Cr
static
kgf
Cor
Cr
Cor
● Four Row Tapered Roller Bearings
Bearing numbers
Abutment and fillet dimensions
Mass
mm
kg
da
Da
Sa
(approx.)
☆＊ E-LM286249D/LM286210/LM286210DG2
☆＊ E-EE547341D/547480/547481DG2
906
918
1 065
1 135
11
6.5
1 950
3 640
☆＊ E-LM287649D/LM287610/LM287610DG2
990
1 190
10
4 100
☆ E-CRO-19001
1 030
1 278
12
4 100
☆＊ E-LM288949D/LM288910/LM288910DG2
1 260
1 500
13
6 130
Note: 1. Bearing numbers marked " ＊ " designate inch series bearings.
2. Bearing numbers marked " ☆ " designate bearing with hollow rollers and pin type cages.
B-231
●Spherical Roller Bearings
1. Types, construction and characteristics
In addition to bearings with cylindrical bore, those with
tapered bore are also available. Bearings with tapered bore
are specified by attaching the suffix "K" to the end of the
bearing's basic number. The standard taper ratio is 1:12 for
bearings with a "K" suffix, but for bearings in series 240 and
241 the suffix "K30" indicates the taper ratio for a bearing is
1:30. Most tapered bore bearings incorporate the use of
adapters and withdrawal sleeves for shaft mounting.
Spherical roller bearings consist of an outer ring having a
continuous spherical raceway within which operates two
rows of barrel-shaped rollers which are in turn guided by an
inner ring with two raceways separated by a center rib.
(Refer to Diagram 1) This bearing has self-aligning
properties, and therefore is suited for use where
misalignment between the inner and outer rings occurs from
housing installation error or shaft flexure.
Spherical roller bearings have a large capacity for radial
loads, axial loads in either direction, and complex loads.
They are also suited for applications where vibration and
shock loads are encountered. When operating under axial
loads, however, it is desirable to maintain conditions so that
Fa /Fr≦2e in order to prevent sliding movement along the row
of rollers not receiving the axial load. (For the value of e,
refer to dimension tables.)
As shown in Table 1, in addition to standard type there are
various other types of spherical roller bearings. Among
these, Type E has a particularly high load capacity.
Allowable
misalignment
Diagram 1.
Table 1 Types of spherical roller bearings
Type
Standard type (B type)
C type
213 type
E type
Series 222, 223, and 213
with bore dia. of 50 mm or
less; series 24024 to 24038.
Series 213 with bore
dia. of 55 mm or more
Series 22211 to 22218
Symmetrical
Asymmetrical
Symmetrical
By guide ring between
the 2 rows of rollers
By guide ring between
rows of rollers on outer
ring raceway
High precision cage
(no guide ring, center rib)
Pressed cage
Machined cage
Molded resin cage
Construction
Bearing series Does not include C type
Rollers
Roller guide
method
cage type
Asymmetrical
Unified inner ring
center rib
Pressed cage;
machined cage
B-233
●Spherical Roller Bearings
2. Standard cage types
h
Standard cage types for spherical roller bearings are
shown in Table 2. In general, pressed cages are standard
for small sized bearings, and machined cages are standard
for large sized bearings.
E type bearings use as their standard cage type a cage
molded from a newly developed glass fiber reinforced
polyamide 46 resin which has excellent heat resistance
qualities (allowable operating temperatures up to
150˚C), strength, as well as unsurpassed oil resistance.
A standard cage may however not be able to be used for
high-speed specifications, in high temperature atmospheres,
or under excessive vibration/impact conditions. For more
information concerning such conditions, please contact NTN
Engineering.
Table 3 Oil inlet and oil groove dimensions
Pressed cage
Nominal bearing
Oil groove Oil inlet
width
width
diameter Width series Width series
Wo
do
over including
1, 2, 3
4
−
30
45
60
80
100
120
160
200
315
Machined cage
239
230
240
−
−
−
−
23932 ∼ 239/1400
23022B ∼ 23048B 23052B ∼ 230/1120B
24024C ∼ 24038C 24024B ∼ 240/1120B
231
241
−
−
23120B ∼ 23136B 23138B ∼ 231/900B
−
24122B ∼ 241/710B
222
232
213
223
30
45
60
80
100
120
160
200
315
−
6
7
9
11
14
16
20
27
33
42
3
4
5
6
8
10
12
16
20
25
1.2
1.5
1.5
2.0
2.5
3.0
3.5
5.0
6.0
7.0
1.0
1.1
1.3
1.5
2.0
2.5
3.0
3.5
5.0
6.5
Table 4 Oil inlet number
Nominal bearing
outer diameter mm
over up to
including
−
320
1 010
22211E ∼ 22218E 22208C ∼ 22210C 22238B ∼ 22264B
22211B ∼ 22236B
−
−
−
Units mm
Oil groove depth
h
Table 2 Standard cage types
Bearing Molded resin cage
series
Wo
Zo do
−
23218B ∼ 232/750B
21308C ∼ 21310C 21311 ∼ 21322
22308C ∼ 22310C 22330B ∼ 22360B
22311B ∼ 22328B
320
1 010
−
Oil inlet
number
Zo
4
8
12
If a pin is necessary to prevent outer ring rotation, contact
NTN Engineering.
3. Oil inlets and oil groove dimensions
4. Allowable misalignment
Spherical roller bearings with an outer diameter of 320mm
or more are provided with an oil inlet and oil groove on the
outer ring for the purpose of supplying lubricant to the
bearing's moving parts. When necessary, oil inlets and oil
grooves can also be provided on bearings with outer
diameters less than 320 mm. In such cases, please add the
supplementary suffix code "D1" to the end of the bearing
number, and contact NTN Engineering. (Refer to page A-29)
Table 3 lists dimensions for oil inlets and oil grooves.
Table 4 contains information about the number of oil inlets.
Spherical roller bearings possess the same self-aligning
properties as other self-aligning bearings. The allowable
misalignment angle will vary according to dimension series
and load conditions, but the following misalignment angles
are generally standard:
Normal load (loads equivalent
to 0.09 Cr): …………………………………0.009rad (0.5˚)
Light load: …………………………………0.035rad (2˚)
B-234
●Spherical Roller Bearings
5. Adapters and withdrawal sleeves
6. LH series
Adapters are used for installation of bearings with tapered
bore on cylindrical shafts. Withdrawal sleeves are also used
to install and disassemble bearings with tapered bore onto
and off of cylindrical shafts. In disassembling the bearing
from the shaft, the nut is pressed down against the edge of
the inner ring utilizing the bolt provided on the withdrawal
sleeve, and then the sleeve is drawn away from the bearing's
inner diameter surface. (Precision of adapter and withdrawal
sleeve are stipulated JIS B 1552 and JIS B 1556).
For bearings with a bore diameter of 200 mm or more, high
pressure oil (hydraulic) type adapters and withdrawal sleeves
have been standardized to make installation and
disassembly easier. As shown in Diagram 2 construction is
designed to reduce friction by injecting high pressure oil
between the surfaces of the adapter sleeve and bearing
inner bore by means of a pressure fitting.
If the oil supply inlet is attached in the nut side of the
adapter, the supplementary suffix "HF" should be added to
the bearing number; if the oil supply inlet is attached on the
opposite side, the suffix "HB" should be added to the bearing
number. For adapter sleeves, the supplementary suffix "H" is
added to the bearing's number in both cases.
The hydraulic sleeve nut is equipped with holes for bolts
used for mounting and dismounting and holes for hydraulic
piping. The suffix SP or SPB is added to the bearing number
of the nut.
In recent years, conditions under which spherical roller
bearings are used have become increasingly severe. In
particular, longer life is now demanded for use in high
temperature environments.
Taking the global environment into account, NTN
Engineering has developed a type of steel (STJ2) that offers
longer life in a wide range of temperatures, from room
temperature all the way up to 250˚C. The steel is standardly
used in NTN Engineering's LH series of spherical roller
bearings.
Features are as follows (in comparison with SUJ2):
(1) Longer life in wide range of temperatures.
¡3.5 times longer life at room temperature.
¡30 times longer life at high temperature (250˚C).
(2) Resists surface damage.
¡7 times stronger resistance to peeling
¡1.4 times stronger resistance to smearing
¡2.5 times stronger resistance to wear
(3) Dimensions stability at high temperatures.
¡Almost no dimensional variation when maintained at
250˚C.
(4) Enhanced cracking fatigue strength.
¡2 times longer cracking fatigue life under high
temperatures or tight fitting stress.
¡2 times better operating cracking fatigue strength.
(5) Simplified service part stock management.
¡Applications ranging from room temperature to 250˚C
can be handles with a single type of standard
bearing.
Items with LH preceding the basic number in the
dimensions table are LH series and are gradually being
switched.
Bearing numbers without LH can be manufactured
according to size. For information, please contact NTN
Engineering.
Diagram 2.
B-235
● Spherical Roller Bearings
B
r
r
φD
φd
φd
Cylindrical bore
Tapered bore
d 25 ∼ 75mm
Boundary dimensions
dynamic
mm
Limiting speeds1）
Basic load ratings
static
dynamic
kN
Bearing numbers4）
static
min-1
kgf
cylindrical
bore
tapered2）
bore
D
B
rs min3）
Cr
Cor
25
52
18
1
36.5
36
3 750
3 650
8 500
11 000
22205C
22205CK
30
62
20
1
49
49
5 000
5 000
7 500
9 500
22206C
22206CK
35
72
23
1.1
69.5
71
7 050
7 200
6 500
8 500
22207C
22207CK
40
80
90
90
23
23
33
1.1
1.5
1.5
79
88
121
88.5
90
128
8 050
8 950
12 300
9 000
9 150
13 000
6 000
4 900
4 500
7 600
6 400
5 900
LH-22208C
21308C
22308C
LH-22208CK
21308CK
22308CK
45
85
100
100
23
25
36
1.1
1.5
1.5
82.5
102
148
95
106
167
8 400
10 400
15 100
9 700
10 800
17 000
5 300
4 400
4 100
6 800
5 700
5 300
LH-22209C
21309C
22309C
LH-22209CK
21309CK
22309CK
50
90
110
110
23
27
40
1.1
2
2
86
118
186
102
127
212
8 750
12 000
19 000
10 400
12 900
21 600
4 900
4 000
3 700
6 300
5 200
4 800
LH-22210C
21310C
22310C
LH-22210CK
21310CK
22310CK
55
100
100
120
120
25
25
29
43
1.5
1.5
2
2
118
93.5
145
204
144
110
163
234
12 000
9 500
14 800
20 800
14 700
11 200
16 600
23 900
4 400
4 500
3 700
3 400
5 800
5 800
4 800
4 400
LH-22211E
LH-22211B
21311
22311B
LH-22211EK
LH-22211BK
21311K
22311BK
60
110
110
130
130
28
28
31
46
1.5
1.5
2.1
2.1
150
115
167
238
182
147
191
273
15 300
11 700
17 100
24 300
18 500
15 000
19 500
27 800
4 000
4 100
3 400
3 100
5 300
5 300
4 400
4 000
LH-22212E
LH-22212B
21312
22312B
LH-22212EK
LH-22212BK
21312K
22312BK
65
120
120
140
140
31
31
33
48
1.5
1.5
2.1
2.1
177
143
194
265
217
179
228
320
18 000
14 600
19 800
27 100
22 200
18 300
23 200
32 500
3 800
3 900
3 100
2 800
5 000
5 000
4 000
3 700
LH-22213E
LH-22213B
21313
22313B
LH-22213EK
LH-22213BK
21313K
22313BK
70
125
125
150
150
31
31
35
51
1.5
1.5
2.1
2.1
184
154
220
325
232
201
262
380
18 700
15 700
22 400
33 000
23 600
20 500
26 800
39 000
3 400
3 500
2 900
2 700
4 600
4 600
3 800
3 500
LH-22214E
LH-22214B
21314
22314B
LH-22214EK
LH-22214BK
21314K
22314BK
75
130
31
1.5
190
246
19 400
25 100
3 200
4 200
LH-22215E
LH-22215EK
d
Cr
Cor
grease
oil
1）This value was achieved with machined cages and molded resin cages; for pressed cages, 75% of this value is allowable.
2）"K" indicates bearings have tapered bore with a taper ratio of 1: 12. 3）Smallest allowable dimension for chamfer dimension r.
4）Bearing number with the prefix LH indicates LH series.
B-236
● Spherical Roller Bearings
ra
Equivalent radial load
dynamic
Pr＝XFr＋YFa
Fa
Fa
≦e
Fr
Fr ＞e
X Y
X
Y
1 Y1 0.67 Y2
static
Por＝Fr＋YoFa
For values of e, Y2 and Yo
see the table below.
ra
φDa
φda
Abutment and fillet dimensions
Constant
Axial load factors
Mass (approx.)
mm
da
min
kg
Da
max
ras
min
max
max
e
Y1
Y2
Yo
cylindrical
bore
tapered
bore
31
―
―
46
1
0.35
1.92
2.86
1.88
0.186
0.182
36
―
―
56
1
0.33
2.07
3.09
2.03
0.287
0.282
42
―
―
65
1
0.32
2.09
3.11
2.04
0.446
0.437
47
48.5
48.5
―
―
―
―
―
―
73
81.5
81.5
1
1.5
1.5
0.29
0.26
0.38
2.35
2.55
1.76
3.50
3.80
2.62
2.30
2.50
1.72
0.526
0.705
0.974
0.515
0.694
0.951
52
53.5
53.5
―
―
―
―
―
―
78
91.5
91.5
1
1.5
1.5
0.27
0.26
0.36
2.50
2.60
1.86
3.72
3.87
2.77
2.44
2.54
1.82
0.584
0.927
1.33
0.572
0.912
1.3
57
60
60
―
―
―
―
―
―
83
100
100
1
2
2
0.25
0.26
0.37
2.69
2.64
1.80
4.01
3.93
2.69
2.63
2.58
1.76
0.63
1.21
1.79
0.616
1.19
1.75
63.5
63.5
65
65
67
―
―
―
89.5
―
―
―
91.5
91.5
110
110
1.5
1.5
2
2
0.24
0.28
0.25
0.40
2.83
2.42
2.69
1.68
4.21
3.61
4.01
2.50
2.76
2.37
2.63
1.64
0.808
0.85
1.71
2.3
0.79
0.832
1.69
2.25
68.5
68.5
72
72
72
―
―
―
98
―
―
―
101.5
101.5
118
118
1.5
1.5
2
2
0.25
0.27
0.25
0.42
2.75
2.49
2.69
1.62
4.09
3.71
4.00
2.42
2.69
2.44
2.63
1.59
1.09
1.15
2.1
2.9
1.07
1.13
2.07
2.83
73.5
73.5
77
77
78.5
―
―
―
107
―
―
―
111.5
111.5
128
128
1.5
1.5
2
2
0.25
0.28
0.25
0.38
2.71
2.42
2.69
1.79
4.04
3.60
4.00
2.67
2.65
2.37
2.63
1.75
1.43
1.5
2.55
3.45
1.4
1.47
2.51
3.37
78.5
78.5
82
82
83.5
―
―
―
112.5
―
―
―
116.5
116.5
138
138
1.5
1.5
2
2
0.24
0.26
0.25
0.37
2.86
2.55
2.69
1.81
4.25
3.80
4.00
2.70
2.79
2.50
2.63
1.77
1.51
1.55
3.18
4.22
1.47
1.52
3.14
4.12
83.5
89
117.5
121.5
1.5
0.22
3.00
4.47
2.94
1.59
1.55
Note: Upon request, bearings with oil inlets and oil grooves on the outer ring can also be manufactured. In such cases, please add the suffix "D1" to
the end of the bearing number. (Example: 22214BD1)
B-237
● Spherical Roller Bearings
B
r
r
φD
φd
φd
Cylindrical bore
Tapered bore
d 75 ∼ 120mm
Boundary dimensions
dynamic
mm
kN
d
D
B
rs min3）
75
130
160
160
31
37
55
80
140
140
170
170
Limiting speeds1）
Basic load ratings
static
dynamic
Bearing numbers4）
static
min-1
kgf
cylindrical
bore
tapered2）
bore
Cr
Cor
Cr
Cor
grease
oil
1.5
2.1
2.1
166
239
330
223
287
410
16 900
24 300
33 500
22 800
29 300
42 000
3 200
2 700
2 500
4 200
3 500
3 200
LH-22215B LH-22215BK
21315
21315K
22315B
22315BK
33
33
39
58
2
2
2.1
2.1
213
179
260
385
277
239
315
470
21 700
18 300
26 500
39 500
28 200
24 400
32 000
48 000
3 000
3 100
2 500
2 300
4 000
4 000
3 300
3 000
LH-22216E LH-22216EK
LH-22216B LH-22216BK
21316
21316K
22316B
22316BK
85
150
150
180
180
36
36
41
60
2
2
3
3
251
206
289
415
320
272
355
510
25 600
21 000
29 500
42 500
33 000
27 800
36 000
52 000
2 800
2 900
2 400
2 200
3 800
3 800
3 100
2 900
LH-22217E LH-22217EK
LH-22217B LH-22217BK
21317
21317K
22317B
22317BK
90
160
160
160
190
190
40
40
52.4
43
64
2
2
2
3
3
292
256
315
320
480
385
345
455
400
590
29 800
26 200
32 500
32 500
49 000
39 500
35 000
46 500
40 500
60 000
2 600
2 700
2 200
2 300
2 100
3 500
3 500
2 800
3 000
2 700
LH-22218E LH-22218EK
LH-22218B LH-22218BK
23218B
23218BK
21318
21318K
22318B
22318BK
95
170
200
200
43
45
67
2.1
3
3
294
335
500
390
420
615
30 000
34 000
51 000
39 500
43 000
63 000
2 500
2 100
1 900
3 300
2 700
2 500
22219B
21319
22319B
22219BK
21319K
22319BK
100
165
180
180
215
215
52
46
60.3
47
73
2
2.1
2.1
3
3
310
315
405
370
605
470
415
580
465
755
31 500
32 000
41 500
37 500
61 500
47 500
42 500
59 000
47 500
77 000
2 000
2 400
1 900
2 000
1 800
2 600
3 200
2 500
2 600
2 400
23120B
22220B
23220B
21320
22320B
23120BK
22220BK
23220BK
21320K
22320BK
110
170
180
180
200
200
240
240
45
56
69
53
69.8
50
80
2
2
2
2.1
2.1
3
3
282
370
450
410
515
495
745
455
580
755
570
760
615
930
28 800
37 500
46 000
42 000
52 500
50 500
76 000
46 500
59 500
77 000
58 000
77 500
62 500
95 000
2 200
1 800
1 800
2 200
1 700
1 800
1 700
2 800
2 400
2 400
2 800
2 200
2 300
2 200
23022B
23122B
24122B
22222B
23222B
21322
22322B
23022BK
23122BK
24122BK30
22222BK
23222BK
21322K
22322BK
120
180
46
2
296
495
30 000
50 500
2 000
2 600
23024B
23024BK
1）This value was achieved with machined cages and molded resin cages; for pressed cages, 75% of this value is allowable.
2）Bearings appended with "K" have a tapered bore ratio of 1:12. 3）Smallest allowable dimension for chamfer dimension r.
4）Bearing number with the prefix LH indicates LH series.
B-238
● Spherical Roller Bearings
ra
Equivalent radial load
dynamic
Pr＝XFr＋YFa
Fa
Fa
≦e
Fr
Fr ＞e
X Y
X
Y
1 Y1 0.67 Y2
static
Por＝Fr＋YoFa
For values of e, Y2 and Yo
see the table below.
ra
φDa
φda
Abutment and fillet dimensions
Constant
Axial load factors
Mass (approx.)
mm
da
min
kg
Da
max
ras
cylindrical
bore
tapered
bore
min
max
max
e
Y1
Y2
Yo
―
―
―
121.5
148
148
1.5
2
2
0.24
0.24
0.37
2.81
2.84
1.80
4.19
4.23
2.69
2.75
2.78
1.76
1.65
3.81
5.25
1.61
3.76
5.13
125.5
―
―
―
130
130
158
158
2
2
2
2
0.22
0.26
0.23
0.37
3.01
2.64
2.95
1.80
4.48
3.93
4.39
2.69
2.94
2.58
2.88
1.76
1.99
2.15
4.53
6.05
1.94
2.11
4.47
5.91
83.5
87
87
―
―
―
90
90
92
92
94.5
―
―
―
95
95
99
99
100.5
―
―
―
135
―
―
―
140
140
166
166
2
2
2.5
2.5
0.23
0.26
0.25
0.37
2.96
2.60
2.69
1.82
4.41
3.88
4.00
2.71
2.90
2.55
2.63
1.78
2.49
2.66
5.35
7.1
2.43
2.61
5.28
6.94
100
100
100
104
104
107.5
―
―
―
―
144
―
―
―
―
150
150
150
176
176
2
2
2
2.5
2.5
0.24
0.26
0.33
0.24
0.37
2.86
2.55
2.04
2.83
1.80
4.25
3.80
3.03
4.22
2.69
2.79
2.49
1.99
2.77
1.76
3.24
3.5
4.45
6.3
8.35
3.16
3.42
4.32
6.21
8.16
107
109
109
―
―
―
―
―
―
158
186
186
2
2.5
2.5
0.26
0.23
0.37
2.63
3.00
1.80
3.92
4.46
2.69
2.57
2.93
1.76
4.1
7.1
9.76
4.01
7
9.54
110
112
112
114
114
―
―
―
―
―
―
―
―
―
―
155
168
168
201
201
2
2
2
2.5
2.5
0.32
0.26
0.34
0.22
0.37
2.12
2.55
1.98
3.01
1.80
3.15
3.80
2.94
4.48
2.69
2.07
2.49
1.93
2.94
1.76
4.3
4.95
6.47
8.89
12.4
4.16
4.84
6.28
8.78
12.1
120
120
120
122
122
124
124
―
―
―
―
―
―
―
―
―
―
―
―
―
―
160
170
170
188
188
226
226
2
2
2
2
2
2.5
2.5
0.26
0.31
0.38
0.27
0.35
0.21
0.36
2.59
2.17
1.76
2.51
1.91
3.20
1.87
3.85
3.24
2.63
3.74
2.84
4.77
2.79
2.53
2.13
1.73
2.46
1.86
3.13
1.83
3.71
5.4
7.07
7.2
9.71
11.2
17.1
3.58
5.22
6.96
7.04
9.43
11.1
16.7
130
―
―
170
2
0.25
2.69
4.01
2.63
4.05
3.9
Note: Upon request, bearings with oil inlets and oil grooves on the outer ring can also be manufactured. In such cases, please add the suffix "D1" to
the end of the bearing number. (Example: 23024BD1)
B-239
● Spherical Roller Bearings
B
r
r
φD
φd
φd
Cylindrical bore
Tapered bore
d 120 ∼ 160mm
Boundary dimensions
dynamic
mm
kN
d
D
B
rs min3）
120
180
180
200
200
215
215
260
60
60
62
80
58
76
86
2
2
2
2
2.1
2.1
3
130
200
200
200
210
210
230
230
280
52
69
69
64
80
64
80
93
140
210
210
210
225
225
250
250
300
Limiting speeds1）
Basic load ratings
static
dynamic
Bearing numbers4）
static
min-1
kgf
cylindrical
bore
tapered2）
bore
Cr
Cor
grease
oil
670
695
705
945
700
880
1 120
39 500
40 000
46 500
58 500
49 500
59 500
89 500
68 500
71 000
71 500
96 500
71 500
89 500
114 000
1 800
1 800
1 600
1 600
2 000
1 500
1 500
2 300
2 300
2 100
2 100
2 600
2 000
2 000
24024B
24024C
23124B
24124B
22224B
23224B
22324B
24024BK30
24024CK30
23124BK
24124BK30
22224BK
23224BK
22324BK
375
505
490
495
585
570
685
1 000
620
895
860
795
995
790
1 060
1 290
38 500
51 500
50 000
50 500
60 000
58 000
70 000
102 000
63 500
91 000
87 500
81 000
102 000
80 500
108 000
131 000
1 800
1 600
1 600
1 500
1 500
1 800
1 500
1 400
2 300
2 100
2 100
2 000
2 000
2 400
1 900
1 800
23026B
24026B
24026C
23126B
24126B
22226B
23226B
22326B
23026BK
24026BK30
24026CK30
23126BK
24126BK30
22226BK
23226BK
22326BK
2
2
2
2.1
2.1
3
3
4
405
510
520
540
670
685
805
1 130
690
945
940
895
1 150
975
1 270
1 460
41 000
52 000
53 000
55 000
68 500
70 000
82 000
115 000
70 500
96 500
95 500
91 000
117 000
99 500
129 000
149 000
1 700
1 500
1 500
1 400
1 400
1 700
1 300
1 300
2 200
1 900
1 900
1 800
1 800
2 200
1 700
1 700
23028B
24028B
24028C
23128B
24128B
22228B
23228B
22328B
23028BK
24028BK30
24028CK30
23128BK
24128BK30
22228BK
23228BK
22328BK
56
75
75
80
100
73
96
108
2.1
2.1
2.1
2.1
2.1
3
3
4
445
585
600
730
885
775
935
1 270
775
1 060
1 090
1 190
1 520
1 160
1 460
1 750
45 500
59 500
61 000
74 500
90 500
79 000
95 000
130 000
79 000
108 000
111 000
121 000
155 000
119 000
149 000
179 000
1 500
1 400
1 400
1 300
1 300
1 600
1 200
1 200
2 000
1 800
1 800
1 700
1 700
2 000
1 600
1 600
23030B
24030B
24030C
23130B
24130B
22230B
23230B
22330B
23030BK
24030BK30
24030CK30
23130BK
24130BK30
22230BK
23230BK
22330BK
45
60
80
80
2
2.1
2.1
2.1
320
505
650
665
610
885
1 200
1 250
33 000
51 500
66 500
67 500
62 500
90 000
122 000
127 000
1 500
1 500
1 300
1 300
2 000
1 900
1 700
1 700
23932
23032B
24032B
24032C
23932K
23032BK
24032BK30
24032CK30
Cr
Cor
390
395
455
575
485
585
880
2
2
2
2
2
3
3
4
53
69
69
68
85
68
88
102
150
225
225
225
250
250
270
270
320
160
220
240
240
240
1）This value was achieved with machined cages and molded resin cages; for pressed cages, 75% of this value is allowable.
2）Bearings appended with "K" have a tapered bore ratio of 1:12. 3）Smallest allowable dimension for chamfer dimension r.
B-240
● Spherical Roller Bearings
ra
Equivalent radial load
dynamic
Pr＝XFr＋YFa
Fa
Fa
≦e
Fr
Fr ＞e
X Y
X
Y
1 Y1 0.67 Y2
static
Por＝Fr＋YoFa
For values of e, Y2 and Yo
see the table below.
ra
φDa
φda
Abutment and
fillet dimensions
mm
da
Da
ras
Constant
Axial load factors
Mass (approx.)
kg
min
max
max
e
130
130
130
130
132
132
134
170
170
190
190
203
203
246
2
2
2
2
2
2
2.5
0.33
0.32
0.31
0.40
0.27
0.36
0.37
140
140
140
140
140
144
144
148
190
190
190
200
200
216
216
262
2
2
2
2
2
2.5
2.5
3
150
150
150
152
152
154
154
158
200
200
200
213
213
236
236
282
162
162
162
162
162
164
164
168
170
172
172
172
Y1
cylindrical
bore
tapered
bore
Y2
Yo
2.06
2.12
2.17
1.68
2.47
1.89
1.80
3.07
3.15
3.24
2.50
3.68
2.82
2.69
2.02
2.07
2.13
1.64
2.42
1.85
1.76
5.48
5.48
7.7
10.3
9.1
12.1
21.5
5.39
4.91
7.46
10.1
8.89
11.7
21
0.26
0.34
0.32
0.30
0.38
0.28
0.35
0.37
2.63
1.98
2.12
2.23
1.78
2.39
1.92
1.81
3.92
2.95
3.15
3.32
2.65
3.56
2.86
2.69
2.57
1.94
2.07
2.18
1.74
2.33
1.88
1.77
5.9
8.08
7.91
8.47
11
11.2
14.3
26.8
5.69
7.95
7.78
8.2
10.8
10.9
13.9
26.2
2
2
2
2
2
2.5
2.5
3
0.25
0.32
0.30
0.30
0.38
0.28
0.36
0.37
2.73
2.09
2.23
2.25
1.80
2.39
1.90
1.80
4.06
3.12
3.32
3.35
2.68
3.55
2.83
2.69
2.67
2.05
2.18
2.20
1.76
2.33
1.86
1.76
6.35
8.57
8.48
10.2
13.3
14
18.8
33.8
6.12
8.43
7.66
9.86
13.1
13.7
18.2
33
213
213
213
238
238
256
256
302
2
2
2
2
2
2.5
2.5
3
0.24
0.33
0.30
0.32
0.40
0.27
0.36
0.35
2.76
2.06
2.25
2.11
1.69
2.46
1.88
1.92
4.11
3.07
3.34
3.15
2.51
3.66
2.79
2.86
2.70
2.02
2.20
2.06
1.65
2.4
1.83
1.88
7.73
10.7
10.5
15.6
20.2
18.1
24.1
42.7
7.45
10.5
10.3
15.1
20
17.7
23.4
41.8
210
228
228
228
2
2
2
2
0.18
0.25
0.32
0.31
3.69
2.74
2.10
2.18
5.49
4.09
3.13
3.24
3.61
2.68
2.06
2.13
5.5
9.42
13
12
5.33
9.09
12.8
11.8
Note: An oil groove is provided for outer rings of bearings with an outer diameter (D dimension) of 320 mm or more. See page B-226 on dimensions. We can make bearings
with oil hole or oil groove in the outer ring, per your request, for an outer diameter of 320mm or less. Such bearings are indicated by attaching "D1" to the end of the
bearing number. (ex. 23032BD1)
B-241
● Spherical Roller Bearings
B
r
r
φD
φd
φd
Cylindrical bore
Tapered bore
d 160 ∼ 200mm
Boundary dimensions
dynamic
mm
kN
rs min3）
Limiting speeds1）
Basic load ratings
static
dynamic
Bearing numbers4）
static
min-1
kgf
cylindrical
bore
tapered2）
bore
Cr
Cor
grease
oil
1 370
1 780
1 290
1 660
1 990
85 500
106 000
88 500
107 000
144 000
140 000
181 000
132 000
170 000
203 000
1 200
1 200
1 500
1 200
1 200
1 600
1 600
1 900
1 500
1 500
23132B
24132B
22232B
23232B
22332B
23132BK
24132BK30
22232BK
23232BK
22332BK
330
630
800
815
885
1 080
1 000
1 180
1 540
650
1 080
1 470
1 500
1 490
1 880
1 520
1 960
2 180
34 000
64 000
81 500
83 000
90 500
110 000
102 000
120 000
157 000
66 000
110 000
150 000
153 000
152 000
191 000
155 000
200 000
223 000
1 500
1 400
1 200
1 200
1 200
1 200
1 400
1 100
1 100
1 900
1 800
1 600
1 600
1 500
1 500
1 800
1 400
1 400
23934
23034B
24034B
24034C
23134B
24134B
22234B
23234B
22334B
23934K
23034BK
24034BK30
24034CK30
23134BK
24134BK30
22234BK
23234BK
22334BK
2
2.1
2.1
2.1
3
3
4
4
4
440
740
965
965
1 030
1 250
1 040
1 230
1 740
835
1 290
1 770
1 770
1 730
2 210
1 610
2 000
2 560
45 000
75 500
98 500
98 500
105 000
127 000
106 000
125 000
177 000
85 000
132 000
181 000
181 000
176 000
225 000
164 000
204 000
261 000
1 400
1 300
1 200
1 200
1 100
1 100
1 300
1 000
1 000
1 800
1 700
1 500
1 500
1 400
1 400
1 700
1 300
1 300
23936
23036B
24036B
24036C
23136B
24136B
22236B
23236B
22336B
23936K
23036BK
24036BK30
24036CK30
23136BK
24136BK30
22236BK
23236BK
22336BK
52
75
100
100
104
128
92
120
132
2
2.1
2.1
2.1
3
3
4
4
5
460
755
995
970
1 190
1 420
1 160
1 400
1 870
890
1 350
1 850
1 820
2 020
2 480
1 810
2 330
2 790
47 000
77 000
102 000
98 500
122 000
144 000
118 000
143 000
191 000
91 000
138 000
188 000
186 000
206 000
253 000
185 000
237 000
284 000
1 300
1 200
1 100
1 100
1 000
1 000
1 200
920
920
1 700
1 600
1 400
1 400
1 300
1 300
1 600
1 200
1 200
23938
23038B
24038B
24038C
23138B
24138B
22238B
23238B
22338B
23938K
23038BK
24038BK30
24038CK30
23138BK
24138BK30
22238BK
23238BK
22338BK
60
82
109
2.1
2.1
2.1
545
915
1 160
1 100
1 620
2 140
56 000
93 000
118 000
112 000
165 000
219 000
1 200
1 200
1 000
1 600
1 500
1 300
23940
23040B
24040B
23940K
23040BK
24040BK30
d
D
B
Cr
Cor
160
270
270
290
290
340
86
109
80
104
114
2.1
2.1
3
3
4
840
1 040
870
1 050
1 410
170
230
260
260
260
280
280
310
310
360
45
67
90
90
88
109
86
110
120
2
2.1
2.1
2.1
2.1
2.1
4
4
4
180
250
280
280
280
300
300
320
320
380
52
74
100
100
96
118
86
112
126
190
260
290
290
290
320
320
340
340
400
200
280
310
310
1）This value was achieved with machined cages and molded resin cages; for pressed cages, 75% of this value is allowable.
2）Bearings appended with "K" have a tapered bore ratio of 1:12. 3）Smallest allowable dimension for chamfer dimension r.
B-242
● Spherical Roller Bearings
ra
Equivalent radial load
dynamic
Pr＝XFr＋YFa
Fa
Fa
Fr ≦e
Fr ＞e
X Y
X
Y
1 Y1 0.67 Y2
static
Por＝Fr＋YoFa
For values of e, Y2 and Y
see the table below.
ra
φDa
φda
Abutment and
fillet dimensions
mm
da
Da
ras
Constant
Axial load factors
Mass (approx.)
kg
Y2
Yo
cylindrical
bore
2.11
1.67
2.42
1.86
1.94
3.15
2.48
3.60
2.77
2.89
2.07
1.63
2.37
1.82
1.90
19.8
26
22.7
30
50.8
19.2
25.6
22.2
29.1
49.7
0.17
0.25
0.34
0.31
0.31
0.39
0.28
0.36
0.34
3.91
2.66
1.98
2.16
2.15
1.74
2.39
1.87
1.96
5.83
3.96
2.95
3.22
3.21
2.59
3.56
2.79
2.91
3.83
2.60
1.94
2.12
2.11
1.70
2.34
1.83
1.91
5.8
12.7
17.7
17.4
21.5
27.2
28
36.8
59.8
5.62
12.3
17.4
17.1
20.8
26.8
27.3
35.7
58.5
2
2
2
2
2.5
2.5
3
3
3
0.19
0.26
0.35
0.33
0.32
0.39
0.27
0.35
0.34
3.52
2.59
1.91
2.04
2.11
1.72
2.49
1.91
1.97
5.25
3.85
2.85
3.04
3.15
2.56
3.70
2.84
2.93
3.45
2.53
1.87
2.00
2.07
1.68
2.43
1.86
1.92
8.21
16.7
23.3
23
25.1
34.3
29.3
39
70
7.95
16.1
22.9
22.6
24.2
33.8
28.6
37.8
68.5
250
278
278
278
306
306
322
322
378
2
2
2
2
2.5
2.5
3
3
4
0.18
0.26
0.33
0.31
0.33
0.40
0.27
0.36
0.34
3.81
2.65
2.03
2.16
2.07
1.69
2.47
1.89
1.97
5.67
3.94
3.02
3.22
3.09
2.51
3.68
2.82
2.94
3.73
2.59
1.98
2.12
2.03
1.65
2.42
1.85
1.93
8.6
17.7
24.3
23
35.3
42.8
36.6
47.6
81
8.34
17.1
23.9
22.6
34.2
42.2
35.8
46.2
79.3
268
298
298
2
2
2
0.17
0.26
0.35
3.91
2.59
1.94
5.82
3.85
2.89
3.82
2.53
1.90
12.1
22.7
31
11.7
21.9
30.5
min
max
max
e
172
172
174
174
178
258
258
276
276
322
2
2
2.5
2.5
3
0.32
0.40
0.28
0.36
0.35
180
182
182
182
182
182
188
188
188
220
248
248
248
268
268
292
292
342
2
2
2
2
2
2
3
3
3
190
192
192
192
194
194
198
198
198
240
268
268
268
286
286
302
302
362
200
202
202
202
204
204
208
208
212
212
212
212
Y1
tapered
bore
Note: An oil groove is provided for outer rings of bearings with an outer diameter (D dimension) of 320 mm or more. See page B-234 on dimensions. We can make bearings
with oil hole or oil groove in the outer ring, per your request, for an outer diameter of 320mm or less. Such bearings are indicated by attaching "D1" to the end of the
bearing number. (ex. 23032BD1)
B-243
● Spherical Roller Bearings
B
r
r
φD
φd
φd
Cylindrical bore
Tapered bore
d 200 ∼ 280mm
Boundary dimensions
Basic load ratings
static
dynamic
dynamic
mm
d
kN
rs min2）
Limiting speeds
Bearing numbers3）
static
min-1
kgf
cylindrical
bore
tapered1）
bore
Cr
Cor
grease
oil
2 270
2 900
2 010
2 640
3 050
137 000
166 000
134 000
165 000
208 000
231 000
295 000
205 000
269 000
310 000
920
920
1 100
920
850
1 200
1 200
1 500
1 200
1 100
23140B
24140B
22240B
23240B
22340B
23140BK
24140BK30
22240BK
23240BK
22340BK
565
1 060
1 350
1 540
1 880
1 580
2 010
2 350
1 170
1 920
2 570
2 670
3 400
2 460
3 350
3 500
57 500
108 000
138 000
157 000
192 000
161 000
205 000
240 000
119 000
195 000
262 000
272 000
345 000
251 000
340 000
360 000
1 100
1 000
920
850
850
1 000
770
770
1 400
1 300
1 200
1 100
1 100
1 300
1 000
1 000
23944
23044B
24044B
23144B
24144B
22244B
23244B
22344B
23944K
23044BK
24044BK30
23144BK
24144BK30
22244BK
23244BK
22344BK
2.1
3
3
4
4
4
4
5
565
1 130
1 410
1 730
2 110
1 940
2 430
2 720
1 190
2 140
2 770
3 050
3 800
3 100
4 100
4 100
58 000
116 000
144 000
177 000
215 000
198 000
247 000
278 000
121 000
219 000
282 000
310 000
390 000
315 000
420 000
420 000
1 000
920
850
770
770
920
720
720
1 300
1 200
1 100
1 000
1 000
1 200
940
930
23948
23048B
24048B
23148B
24148B
22248B
23248B
22348B
23948K
23048BK
24048BK30
23148BK
24148BK30
22248BK
23248BK
22348BK
75
104
140
144
180
130
174
165
2.1
4
4
4
4
5
5
6
760
1 420
1 830
2 140
2 510
2 230
2 760
3 100
1 580
2 620
3 550
3 850
4 600
3 600
4 700
4 750
77 500
144 000
186 000
219 000
256 000
228 000
281 000
320 000
161 000
267 000
365 000
395 000
470 000
365 000
480 000
485 000
920
850
750
710
710
850
660
650
1 200
1 100
980
920
920
1 100
860
850
23952
23052B
24052B
23152B
24152B
22252B
23252B
22352B
23952K
23052BK
24052BK30
23152BK
24152BK30
22252BK
23252BK
22352BK
75
106
140
146
180
130
2.1
4
4
5
5
5
830
1 510
1 950
2 300
2 730
2 310
1 750
2 920
3 950
4 250
5 200
3 800
84 500
154 000
199 000
234 000
278 000
236 000
179 000
297 000
405 000
435 000
530 000
390 000
850
770
690
650
650
770
1 100
1 000
900
850
850
1 000
23956
23056B
24056B
23156B
24156B
22256B
23956K
23056BK
24056BK30
23156BK
24156BK30
22256BK
D
B
Cr
Cor
200
340
340
360
360
420
112
140
98
128
138
3
3
4
4
5
1 350
1 630
1 310
1 610
2 040
220
300
340
340
370
370
400
400
460
60
90
118
120
150
108
144
145
2.1
3
3
4
4
4
4
5
240
320
360
360
400
400
440
440
500
60
92
118
128
160
120
160
155
260
360
400
400
440
440
480
480
540
280
380
420
420
460
460
500
1）Bearings appended with "K" have a tapered bore ratio of 1:12; bearings appended with "K30" have a tapered bore ratio of 1:30.
2）Smallest allowable dimension for chamfer dimension r.
B-244
● Spherical Roller Bearings
ra
Equivalent radial load
dynamic
Pr＝XFr＋YFa
Fa
Fa
Fr ≦e
Fr ＞e
X Y
X
Y
1 Y1 0.67 Y2
static
Por＝Fr＋YoFa
For values of e, Y2 and Yo
see the table below.
ra
φDa
φda
Abutment and
fillet dimensions
mm
da
Da
ras
Constant
Axial load factors
Mass (approx.)
kg
Y2
Yo
cylindrical
bore
2.05
1.64
2.45
1.88
1.98
3.05
2.44
3.64
2.79
2.95
2.00
1.60
2.39
1.83
1.94
43.3
53.4
44
57.2
93.2
42
52.6
43
55.5
91.2
0.19
0.26
0.34
0.33
0.41
0.27
0.36
0.33
3.62
2.59
1.97
2.07
1.66
2.46
1.85
2.06
5.39
3.85
2.94
3.09
2.47
3.66
2.76
3.07
3.54
2.53
1.93
2.03
1.62
2.40
1.81
2.02
13.1
29.9
40.2
53.3
67
60.4
80
117
12.7
28.8
39.6
51.6
66
59.1
77.6
115
2
2.5
2.5
3
3
3
3
4
0.16
0.25
0.32
0.32
0.40
0.28
0.37
0.32
4.13
2.69
2.09
2.11
1.69
2.43
1.83
2.10
6.15
4.01
3.12
3.15
2.51
3.62
2.72
3.13
4.04
2.63
2.05
2.07
1.65
2.38
1.79
2.06
14
33.4
43
65.8
82.2
81.7
108
148
13.6
32.2
42.3
63.8
80.9
80
105
145
348
382
382
422
422
458
458
512
2
3
3
3
3
4
4
5
0.19
0.26
0.34
0.33
0.41
0.28
0.37
0.32
3.53
2.63
1.96
2.05
1.63
2.45
1.83
2.13
5.26
3.92
2.91
3.06
2.43
3.64
2.72
3.18
3.45
2.57
1.91
2.01
1.60
2.39
1.79
2.09
24
48.5
65.2
91.4
114
106
141
183
23.3
46.8
64.1
88.6
112
104
137
179
368
402
402
438
438
478
2
3
3
4
4
4
0.17
0.25
0.33
0.32
0.39
0.26
3.88
2.73
2.06
2.13
1.73
2.57
5.78
4.06
3.07
3.18
2.58
3.83
3.79
2.67
2.02
2.09
1.69
2.51
26.4
52.4
69
97.7
120
112
25.6
50.6
67.9
94.6
118
110
min
max
max
e
214
214
218
218
222
326
326
342
342
398
2.5
2.5
3
3
4
0.33
0.41
0.28
0.36
0.34
232
234
234
238
238
238
238
242
288
326
326
352
352
382
382
438
2
2.5
2.5
3
3
3
3
4
252
254
254
258
258
258
258
262
308
346
346
382
382
422
422
478
272
278
278
278
278
282
282
288
292
298
298
302
302
302
Y1
Note: Please refer to page B-234 for outer ring oil inlet and oil groove dimensions.
B-245
tapered
bore
● Spherical Roller Bearings
B
r
r
φD
φd
φd
Cylindrical bore
Tapered bore
d 280 ∼ 380mm
Boundary dimensions
Basic load ratings
static
dynamic
dynamic
mm
kN
d
D
B
280
500
580
176
175
300
420
460
460
500
500
540
540
620
rs min2）
Limiting speeds
Bearing numbers
static
min-1
kgf
tapered1）
bore
oil
cylindrical
bore
610
600
790
780
23256B
22356B
23256BK
22356BK
237 000
365 000
505 000
510 000
650 000
440 000
615 000
550 000
770
720
650
600
600
720
560
550
1 000
940
840
780
780
930
730
720
23960
23060B
24060B
23160B
24160B
22260B
23260B
22360B
23960K
23060BK
24060BK30
23160BK
24160BK30
22260BK
23260BK
22360BK
116 000
200 000
255 000
320 000
390 000
315 000
410 000
251 000
395 000
530 000
590 000
745 000
515 000
720 000
720
680
600
560
560
660
520
930
880
780
730
730
860
680
23964
23064B
24064B
23164B
24164B
22264B
23264B
23964K
23064BK
24064BK30
23164BK
24164BK30
22264BK
23264BK
2 650
4 550
6 200
6 600
8 950
8 000
124 000
235 000
305 000
365 000
470 000
455 000
270 000
465 000
630 000
670 000
910 000
815 000
650
630
550
520
520
490
870
820
720
680
680
630
23968
23068B
24068B
23168B
24168B
23268B
23968K
23068BK
24068BK30
23168BK
24168BK30
23268BK
1 320
2 370
3 100
3 750
4 600
4 850
2 930
4 700
6 600
7 050
9 150
8 700
135 000
242 000
320 000
385 000
470 000
495 000
298 000
480 000
675 000
715 000
935 000
885 000
630
590
520
490
490
450
820
770
680
630
630
590
23972
23072B
24072B
23172B
24172B
23272B
23972K
23072BK
24072BK30
23172BK
24172BK30
23272BK
1 560
2 510
3 250
3 900
4 800
3 550
5 150
7 100
7 500
9 650
159 000
256 000
330 000
400 000
490 000
360 000
525 000
725 000
765 000
985 000
590
550
490
450
450
770
720
640
590
590
23976
23076B
24076B
23176B
24176B
23976K
23076BK
24076BK30
23176BK
24176BK30
Cr
Cor
Cr
Cor
5
6
2 930
3 500
5 150
5 350
298 000
360 000
525 000
545 000
90
118
160
160
200
140
192
185
3
4
4
5
5
5
5
7.5
1 110
1 890
2 450
2 750
3 300
2 670
3 450
3 600
2 320
3 550
4 950
5 000
6 400
4 350
6 000
5 400
113 000
193 000
250 000
280 000
340 000
272 000
355 000
365 000
320
440
480
480
540
540
580
580
90
121
160
176
218
150
208
3
4
4
5
5
5
5
1 140
1 960
2 510
3 100
3 850
3 100
4 000
2 460
3 850
5 200
5 800
7 300
5 050
7 050
340
460
520
520
580
580
620
90
133
180
190
243
224
3
5
5
5
5
6
1 220
2 310
3 000
3 600
4 600
4 450
360
480
540
540
600
600
650
90
134
180
192
243
232
3
5
5
5
5
6
380
520
560
560
620
620
106
135
180
194
243
4
5
5
5
5
grease
1）Bearings appended with "K" have a tapered bore ratio of 1:12; bearings appended with "K30" have a tapered bore ratio of 1:30.
2）Smallest allowable dimension for chamfer dimension r.
B-246
● Spherical Roller Bearings
ra
Equivalent radial load
dynamic
Pr＝XFr＋YFa
Fa
Fa
Fr ≦e
Fr ＞e
X Y
X
Y
1 Y1 0.67 Y2
static
Por＝Fr＋YoFa
For values of e, Y2 and Yo
see the table below.
ra
φDa
φda
Abutment and
fillet dimensions
mm
da
Da
ras
Constant
Axial load factors
Mass (approx.)
kg
Yo
1.90
2.16
2.83
3.22
1.86
2.12
150
224
145
220
0.20
0.25
0.34
0.32
0.40
0.26
0.36
0.32
3.34
2.66
1.97
2.11
1.69
2.57
1.88
2.13
4.98
3.96
2.93
3.15
2.51
3.83
2.79
3.17
3.27
2.60
1.92
2.07
1.65
2.51
1.83
2.08
40
72.4
98
131
161
141
193
270
38.7
70.2
96.4
127
159
138
187
265
2.5
3
3
4
4
4
4
0.19
0.25
0.33
0.33
0.40
0.26
0.36
3.50
2.73
2.06
2.06
1.67
2.57
1.86
5.21
4.06
3.07
3.07
2.48
3.83
2.77
3.42
2.67
2.02
2.02
1.63
2.51
1.82
43
78.2
103
167
207
172
243
41.7
75.5
101
162
204
168
236
446
498
498
558
558
592
2.5
4
4
4
4
5
0.17
0.25
0.34
0.33
0.42
0.37
3.91
2.68
1.98
2.05
1.61
1.84
5.83
3.99
2.95
3.06
2.39
2.75
3.83
2.62
1.94
2.01
1.57
1.80
44.7
104
140
210
269
300
43.3
100
138
204
265
291
374
382
382
382
382
388
466
518
518
578
578
622
2.5
4
4
4
4
5
0.17
0.24
0.33
0.32
0.40
0.36
3.99
2.78
2.06
2.11
1.67
1.87
5.93
4.14
3.07
3.15
2.48
2.78
3.90
2.72
2.02
2.07
1.63
1.83
47.2
110
147
222
281
339
45.7
106
145
215
277
329
398
402
402
402
402
502
538
538
598
598
3
4
4
4
4
0.19
0.24
0.30
0.31
0.39
3.54
2.87
2.23
2.16
1.73
5.27
4.27
3.32
3.22
2.58
3.46
2.80
2.18
2.12
1.69
69.9
115
153
235
292
67.7
111
150
228
287
min
max
302
308
478
552
4
5
0.36
0.31
314
318
318
322
322
322
322
336
406
442
442
478
478
518
518
584
2.5
3
3
4
4
4
4
6
334
338
338
342
342
342
342
426
462
462
518
518
558
558
354
362
362
362
362
368
Y1
tapered
bore
Y2
max
e
cylindrical
bore
Note: Please refer to page B-234 for outer ring oil inlet and oil groove dimensions.
B-247
● Spherical Roller Bearings
B
r
r
φD
φd
φd
Cylindrical bore
Tapered bore
d 380 ∼ 500mm
Boundary dimensions
Basic load ratings
static
dynamic
dynamic
mm
kN
Limiting speeds
Bearing numbers
static
min-1
kgf
tapered1）
bore
oil
cylindrical
bore
430
550
23276B
23276BK
161 000
370 000
305 000
615 000
390 000
855 000
425 000
820 000
520 000 1 060 000
595 000 1 080 000
550
520
460
430
430
400
720
680
600
560
560
520
23980
23080B
24080B
23180B
24180B
23280B
23980K
23080BK
24080BK30
23180BK
24180BK30
23280BK
3 850
6 400
8 450
9 950
12 200
12 000
166 000
390 000
315 000
650 000
395 000
865 000
530 000 1 020 000
625 000 1 240 000
665 000 1 230 000
530
490
440
410
410
380
690
640
570
530
530
490
23984
23084B
24084B
23184B
24184B
23284B
23984K
23084BK
24084BK30
23184BK
24184BK30
23284BK
2 030
3 300
4 300
5 200
6 450
6 900
4 700
6 850
9 450
10 100
13 100
12 800
207 000
480 000
335 000
695 000
440 000
960 000
530 000 1 030 000
660 000 1 330 000
705 000 1 310 000
500
470
420
390
390
360
650
610
540
500
500
470
23988
23088B
24088B
23188B
24188B
23288B
23988K
23088BK
24088BK30
23188BK
24188BK30
23288BK
4
6
6
7.5
7.5
7.5
2 100
3 600
4 600
5 700
7 100
7 750
4 950
7 450
10 200
11 400
14 500
14 500
214 000
365 000
470 000
585 000
725 000
790 000
505 000
760 000
1 040 000
1 160 000
1 480 000
1 470 000
480
450
390
360
360
340
620
580
510
470
470
440
23992
23092B
24092B
23192B
24192B
23292B
23992K
23092BK
24092BK30
23192BK
24192BK30
23292BK
128
165
218
248
308
310
5
6
6
7.5
7.5
7.5
2 330
3 650
4 650
6 200
7 450
8 300
5 500
7 700
10 500
12 300
15 300
15 500
238 000
370 000
475 000
635 000
760 000
845 000
565 000
785 000
1 070 000
1 260 000
1 560 000
1 580 000
450
420
380
350
350
320
590
550
490
450
450
420
23996
23096B
24096B
23196B
24196B
23296B
23996K
23096BK
24096BK30
23196BK
24196BK30
23296BK
128
167
5
6
2 370
3 850
5 600
8 300
242 000
390 000
570 000
845 000
430
410
560
530
239/500
239/500K
230/500B 230/500BK
d
D
B
380
680
240
400
540
600
600
650
650
720
rs min2）
Cr
Cor
Cr
Cor
6
5 200
9 650
530 000
985 000
106
148
200
200
250
256
4
5
5
6
6
6
1 580
2 980
3 850
4 200
5 100
5 850
3 650
6 050
8 400
8 050
10 300
10 600
420
560
620
620
700
700
760
106
150
200
224
280
272
4
5
5
6
6
7.5
1 630
3 100
3 850
5 200
6 150
6 550
440
600
650
650
720
720
790
118
157
212
226
280
280
4
6
6
6
6
7.5
460
620
680
680
760
760
830
118
163
218
240
300
296
480
650
700
700
790
790
870
500
670
720
grease
1）Bearings appended with "K" have a tapered bore ratio of 1:12; bearings appended with "K30" have a tapered bore ratio of 1:30.
2）Smallest allowable dimension for chamfer dimension r.
B-248
● Spherical Roller Bearings
ra
Equivalent radial load
dynamic
Pr＝XFr＋YFa
Fa
Fa
Fr ≦e
Fr ＞e
X Y
X
Y
1 Y1 0.67 Y2
static
Por＝Fr＋YoFa
For values of e, Y2 and Yo
see the table below.
ra
φDa
φda
Abutment and
fillet dimensions
mm
da
Da
ras
Constant
Axial load factors
Mass (approx.)
kg
Yo
1.89
2.82
1.85
380
369
0.18
0.24
0.32
0.31
0.38
0.37
3.71
2.80
2.09
2.21
1.77
1.81
5.53
4.16
3.11
3.28
2.63
2.69
3.63
2.73
2.04
2.16
1.73
1.77
73
149
202
264
329
457
70.7
144
200
256
324
443
3
4
4
5
5
6
0.17
0.24
0.32
0.32
0.40
0.36
3.95
2.85
2.13
2.11
1.69
1.86
5.88
4.24
3.18
3.15
2.51
2.77
3.86
2.78
2.09
2.07
1.65
1.82
76.2
157
210
354
440
544
73.8
152
207
343
433
528
582
622
622
692
692
754
3
5
5
5
5
6
0.18
0.24
0.32
0.31
0.39
0.36
3.66
2.85
2.11
2.15
1.75
1.88
5.46
4.24
3.15
3.21
2.61
2.80
3.58
2.78
2.07
2.11
1.71
1.84
101
181
245
370
456
600
98
175
241
358
449
582
478
488
488
496
496
496
602
652
652
724
724
794
3
5
5
6
6
6
0.17
0.23
0.31
0.31
0.39
0.36
3.95
2.88
2.15
2.14
1.71
1.87
5.88
4.29
3.21
3.19
2.55
2.78
3.86
2.82
2.11
2.10
1.67
1.83
107
206
276
443
550
704
104
200
272
429
541
683
502
508
508
516
516
516
628
672
672
754
754
834
4
5
5
6
6
6
0.18
0.23
0.30
0.31
0.39
0.36
3.85
2.94
2.22
2.15
1.74
1.87
5.73
4.38
3.30
3.21
2.59
2.78
3.76
2.88
2.17
2.11
1.70
1.83
123
217
285
492
608
814
119
209
280
477
600
790
522
528
648
692
4
5
0.17
0.23
4.02
2.98
5.98
4.44
3.93
2.91
131
226
127
218
min
max
408
652
5
0.36
418
422
422
428
428
428
522
578
578
622
622
692
3
4
4
5
5
5
438
442
442
448
448
456
542
598
598
672
672
724
458
468
468
468
468
476
Y1
tapered
bore
Y2
max
e
cylindrical
bore
Note: Please refer to page B-234 for outer ring oil inlet and oil groove dimensions.
B-249
● Spherical Roller Bearings
B
r
r
φD
φd
φd
Cylindrical bore
Tapered bore
d 500 ∼ 670mm
Boundary dimensions
Basic load ratings
static
dynamic
dynamic
mm
kN
rs min2）
d
D
B
Cr
500
720
830
830
920
218
264
325
336
6
7.5
7.5
7.5
4 750
6 950
8 050
9 400
530
710
780
780
870
870
980
136
185
250
272
335
355
5
6
6
7.5
7.5
9.5
560
750
820
820
920
920
1 030
140
195
258
280
355
365
600
800
870
870
980
980
1 090
Limiting speeds
min-1
kgf
Cor
10 900
13 700
16 700
17 800
Bearing numbers
static
Cr
Cor
grease
oil
cylindrical
bore
tapered1）
bore
485 000
705 000
825 000
960 000
1 110 000
1 400 000
1 700 000
1 820 000
350
330
330
310
460
430
430
400
240/500B
231/500B
241/500B
232/500B
240/500BK30
231/500BK
241/500BK30
232/500BK
2 640
4 400
5 600
7 000
8 300
10 400
6 450
269 000
9 350
445 000
12 700
570 000
14 200
715 000
17 400
850 000
19 800 1 060 000
655 000
955 000
1 290 000
1 450 000
1 770 000
2 020 000
400
380
330
310
310
280
520
490
430
400
400
370
239/530
230/530B
240/530B
231/530B
241/530B
232/530B
239/530K
230/530BK
240/530BK30
231/530BK
241/530BK30
232/530BK
5
6
6
7.5
7.5
9.5
2 830
4 800
6 100
7 650
9 950
11 100
6 700
288 000
10 500
490 000
14 100
620 000
15 500
780 000
20 800 1 010 000
21 100 1 130 000
680 000
1 070 000
1 440 000
1 580 000
2 120 000
2 150 000
380
350
310
280
280
260
490
450
400
370
370
340
239/560
230/560B
240/560B
231/560B
241/560B
232/560B
239/560K
230/560BK
240/560BK30
231/560BK
241/560BK30
232/560BK
150
200
272
300
375
388
5
6
6
7.5
7.5
9.5
3 150
5 250
6 450
9 000
10 700
12 200
7 800
325 000
12 000
535 000
15 600
655 000
18 400
920 000
23 200 1 090 000
23 700 1 240 000
795 000
1 220 000
1 590 000
1 880 000
2 360 000
2 420 000
350
310
280
260
260
250
450
420
370
340
340
320
239/600
230/600B
240/600B
231/600B
241/600B
232/600B
239/600K
230/600BK
240/600BK30
231/600BK
241/600BK30
232/600BK
630
850
920
920
1 030
1 030
1 150
165
212
290
315
400
412
6
7.5
7.5
7.5
7.5
12
3 700
5 900
7 550
9 600
11 600
13 700
9 250
375 000
13 000
600 000
17 900
770 000
19 900
975 000
25 000 1 180 000
26 800 1 400 000
945 000
1 330 000
1 830 000
2 030 000
2 550 000
2 740 000
320
310
270
250
250
230
420
400
350
320
320
300
239/630
230/630B
240/630B
231/630B
241/630B
232/630B
239/630K
230/630BK
240/630BK30
231/630BK
241/630BK30
232/630BK
670
900
980
980
1 090
1 090
1 220
170
230
308
336
412
438
6
7.5
7.5
7.5
7.5
12
4 100
6 550
8 650
11 000
12 700
16 100
10 300
420 000
14 600
665 000
20 600
885 000
22 800 1 120 000
28 000 1 300 000
32 000 1 640 000
1 050 000
1 490 000
2 100 000
2 330 000
2 850 000
3 250 000
300
280
250
230
230
220
390
360
320
300
300
280
239/670
230/670B
240/670B
231/670B
241/670B
232/670B
239/670K
230/670BK
240/670BK30
231/670BK
241/670BK30
232/670BK
1）Bearings appended with "K" have a tapered bore ratio of 1:12; bearings appended with "K30" have a tapered bore ratio of 1:30.
2）Smallest allowable dimension for chamfer dimension r.
B-250
● Spherical Roller Bearings
ra
Equivalent radial load
dynamic
Pr＝XFr＋YFa
Fa
Fa
Fr ≦e
Fr ＞e
X Y
X
Y
1 Y1 0.67 Y2
static
Por＝Fr＋YoFa
For values of e, Y2 and Yo
see the table below.
ra
φDa
φda
Abutment and
fillet dimensions
mm
da
Da
ras
Constant
Axial load factors
Mass (approx.)
kg
Y2
Yo
cylindrical
bore
2.28
2.12
1.72
1.74
3.40
3.16
2.57
2.59
2.23
2.08
1.69
1.70
295
584
716
1 000
290
566
705
971
0.17
0.22
0.30
0.30
0.38
0.39
3.94
3.03
2.24
2.22
1.79
1.74
5.87
4.52
3.33
3.30
2.67
2.59
3.86
2.97
2.19
2.17
1.75
1.70
157
306
413
653
800
1 200
152
295
406
633
788
1 170
4
5
5
6
6
8
0.16
0.22
0.30
0.30
0.39
0.36
4.09
3.03
2.29
2.27
1.75
1.88
6.09
4.51
3.40
3.38
2.61
2.80
4.00
2.96
2.24
2.22
1.71
1.84
182
353
467
752
948
1 360
176
340
459
729
934
1 320
778
842
842
944
944
1 046
4
5
5
6
6
8
0.18
0.21
0.29
0.30
0.37
0.36
3.85
3.17
2.33
2.22
1.81
1.86
5.73
4.72
3.47
3.30
2.70
2.77
3.76
3.10
2.28
2.17
1.77
1.82
218
400
544
908
1 130
1 540
211
386
535
880
1 110
1 490
658
666
666
666
666
684
822
884
884
994
994
1 096
5
6
6
6
6
10
0.18
0.22
0.30
0.30
0.38
0.36
3.66
3.14
2.28
2.27
1.78
1.87
5.45
4.67
3.40
3.38
2.66
2.78
3.58
3.07
2.23
2.22
1.74
1.83
277
481
657
1 050
1 330
1 900
268
464
646
1 020
1 310
1 840
698
706
706
706
706
724
872
944
944
1 054
1 054
1 166
5
6
6
6
6
10
0.18
0.22
0.29
0.30
0.37
0.36
3.76
3.07
2.29
2.22
1.83
1.89
5.59
4.57
3.41
3.30
2.73
2.81
3.67
3.00
2.24
2.17
1.79
1.85
317
594
794
1 250
1 530
2 270
307
573
781
1 210
1 510
2 200
e
min
max
max
528
536
536
536
692
794
794
884
5
6
6
6
0.30
0.32
0.39
0.39
552
558
558
566
566
574
688
752
752
834
834
936
4
5
5
6
6
8
582
588
588
596
596
604
728
792
792
884
884
986
622
628
628
636
636
644
Y1
Note: Please refer to page B-234 for outer ring oil inlet and oil groove dimensions.
B-251
tapered
bore
● Spherical Roller Bearings
B
r
r
φD
φd
φd
Cylindrical bore
Tapered bore
d 710 ∼ 1060mm
Boundary dimensions
Basic load ratings
static
dynamic
dynamic
mm
d
D
kN
B
rs min2）
Cr
Limiting speeds
min-1
kgf
Cor
Bearing numbers
static
Cr
Cor
grease
oil
cylindrical
bore
tapered1）
bore
710
950
1 030
1 030
1 150
1 150
1 280
180
236
315
345
438
450
6
7.5
7.5
9.5
9.5
12
4 450
7 200
9 300
11 600
14 500
16 300
11 500
16 200
22 500
24 900
32 000
32 500
450 000
730 000
945 000
1 190 000
1 470 000
1 660 000
1 170 000
1 650 000
2 300 000
2 540 000
3 250 000
3 300 000
280
260
230
220
220
200
370
340
300
280
280
260
239/710
230/710B
240/710B
231/710B
241/710B
232/710B
239/710K
230/710BK
240/710BK30
231/710BK
241/710BK30
232/710BK
750
1 000
1 090
1 090
1 220
1 360
185
250
335
365
475
6
7.5
7.5
9.5
15
5 000
8 150
10 100
12 800
18 200
13 000
18 300
24 600
27 200
36 500
510 000
835 000
1 030 000
1 310 000
1 860 000
1 330 000
1 860 000
2 500 000
2 780 000
3 750 000
260
250
220
200
180
340
320
280
260
240
239/750
230/750B
240/750B
231/750B
232/750B
239/750K
230/750BK
240/750BK30
231/750BK
232/750BK
800
1 060
1 150
1 150
1 280
195
258
345
375
6
7.5
7.5
9.5
5 400
8 400
11 200
14 400
13 700
19 500
27 800
31 000
550 000
860 000
1 140 000
1 460 000
1 400 000
1 990 000
2 840 000
3 150 000
240
220
200
180
310
290
260
240
239/800
230/800B
240/800B
231/800B
239/800K
230/800BK
240/800BK30
231/800BK
850
1 120
1 220
1 220
1 360
200
272
365
400
6
7.5
7.5
12
5 850
9 750
12 500
15 500
15 100
22 700
31 500
34 000
595 000
995 000
1 270 000
1 580 000
1 540 000
2 310 000
3 200 000
3 500 000
220
210
180
170
290
270
240
220
239/850
230/850B
240/850B
231/850B
239/850K
230/850BK
240/850BK30
231/850BK
900
1 180
1 280
1 280
1 420
206
280
375
412
6
7.5
7.5
12
6 650
10 300
13 200
16 800
17 300
24 700
33 500
38 000
675 000
1 050 000
1 350 000
1 720 000
1 770 000
2 520 000
3 450 000
3 850 000
210
190
170
150
270
250
220
200
239/900
230/900B
240/900B
231/900B
239/900K
230/900BK
240/900BK30
231/900BK
950
1 250
1 360
1 360
224
300
412
7.5
7.5
7.5
7 750
11 500
15 500
20 500
28 400
40 000
790 000 2 090 000
1 180 000 2 900 000
1 580 000 4 100 000
190
180
160
250
230
210
239/950
239/950K
230/950B 230/950BK
240/950B 240/950BK30
1000
1 320
1 420
1 420
236
308
412
7.5
7.5
7.5
8 600
12 400
16 000
22 700
30 000
42 000
875 000 2 310 000
1 260 000 3 050 000
1 640 000 4 250 000
180
170
150
230
220
190
239/1000 239/1000K
230/1000B 230/1000BK
240/1000B 240/1000BK30
1060
1 400
1 500
1 500
250
325
438
7.5
9.5
9.5
9 300
13 600
17 800
24 700
33 500
47 000
950 000 2 520 000
1 390 000 3 400 000
1 810 000 4 800 000
160
150
140
210
200
180
239/1060 239/1060K
230/1060B 230/1060BK
240/1060B 240/1060BK30
1）Bearings appended with "K" have a tapered bore ratio of 1:12; bearings appended with "K30" have a tapered bore ratio of 1:30.
2）Smallest allowable dimension for chamfer dimension r.
B-252
● Spherical Roller Bearings
ra
Equivalent radial load
dynamic
Pr＝XFr＋YFa
Fa
Fa
Fr ≦e
Fr ＞e
X Y
X
Y
1 Y1 0.67 Y2
static
Por＝Fr＋YoFa
For values of e, Y2 and Yo
see the table below.
ra
φDa
φda
Abutment and
fillet dimensions
mm
da
Da
ras
Constant
Axial load factors
Mass (approx.)
kg
Y2
Yo
cylindrical
bore
3.85
3.02
2.36
2.32
1.80
1.91
5.73
4.50
3.51
3.45
2.69
2.84
3.76
2.96
2.31
2.27
1.76
1.87
375
663
884
1 420
1 800
2 540
363
640
870
1 380
1 770
2 470
0.17
0.21
0.29
0.29
0.35
3.90
3.20
2.35
2.32
1.92
5.81
4.76
3.49
3.45
2.86
3.81
3.13
2.29
2.27
1.88
412
790
1 060
1 700
3 050
399
763
1 040
1 650
2 960
5
6
6
8
0.17
0.21
0.28
0.29
4.05
3.15
2.41
2.32
6.04
4.69
3.59
3.45
3.96
3.08
2.36
2.27
487
890
1 190
1 890
471
859
1 170
1 830
1 092
1 184
1 184
1 306
5
6
6
10
0.16
0.20
0.28
0.28
4.25
3.32
2.42
2.37
6.32
4.95
3.61
3.54
4.15
3.25
2.37
2.32
550
1 050
1 410
2 270
532
1 010
1 390
2 200
928
936
936
954
1 152
1 244
1 244
1 366
5
6
6
10
0.16
0.20
0.27
0.28
4.32
3.32
2.48
2.42
6.44
4.95
3.70
3.60
4.23
3.25
2.43
2.36
623
1 170
1 570
2 500
603
1 130
1 540
2 420
986
986
986
1 214
1 324
1 324
6
6
6
0.16
0.21
0.28
4.20
3.26
2.39
6.26
4.85
3.56
4.11
3.18
2.34
774
1 430
1 970
749
1 380
1 940
1 036
1 036
1 036
1 284
1 384
1 384
6
6
6
0.16
0.20
0.27
4.21
3.37
2.51
6.26
5.02
3.73
4.11
3.29
2.45
916
1 580
2 110
887
1 520
2 080
1 096
1 104
1 104
1 364
1 456
1 456
6
8
8
0.16
0.20
0.27
4.28
3.36
2.49
6.37
5.00
3.71
4.19
3.28
2.44
1 090
1 850
2 450
1 060
1 790
2 140
max
max
e
738
746
746
754
754
764
922
994
994
1 106
1 106
1 226
5
6
6
8
8
10
0.18
0.22
0.29
0.29
0.37
0.35
778
786
786
794
814
972
1 054
1 054
1 176
1 296
5
6
6
8
12
828
836
836
844
1 032
1 114
1 114
1 236
878
886
886
904
min
Y1
Note: Please refer to page B-234 for outer ring oil inlet and oil groove dimensions.
B-253
tapered
bore
● Spherical Roller Bearings
B
r
r
φD
φd
φd
Cylindrical bore
Tapered bore
d 1120 ∼ 1400mm
Boundary dimensions
Basic load ratings
static
dynamic
dynamic
mm
d
D
kN
B
rs min2）
Cr
Limiting speeds
min-1
kgf
Cor
Bearing numbers
static
Cr
Cor
grease
oil
cylindrical
bore
tapered1）
bore
1120
1 460
1 580
1 580
250
345
462
7.5
9.5
9.5
9 850
15 600
19 500
26 700
39 000
52 500
1 000 000 2 720 000
1 590 000 4 000 000
1 990 000 5 350 000
150
150
120
200
190
160
239/1120 239/1120K
230/1120B 230/1120BK
240/1120B 240/1120BK30
1180
1 540
272
7.5
11 000
29 800
1 120 000 3 050 000
140
180
239/1180
239/1180K
1250
1 630
280
7.5
12 100
33 500
1 230 000 3 400 000
120
160
239/1250
239/1250K
1320
1 720
300
7.5
13 600
38 000
1 390 000 3 900 000
120
150
239/1320
239/1320K
1400
1 820
315
9.5
15 100
43 000
1 540 000 4 400 000
100
130
239/1400
239/1400K
1）"K" indicates bearings have tapered bore with a taper ratio of 1: 12.
2）Smallest allowable dimension for chamfer dimension r.
B-254
● Spherical Roller Bearings
ra
Equivalent radial load
dynamic
Pr＝XFr＋YFa
Fa
Fa
Fr ≦e
Fr ＞e
X Y
X
Y
1 Y1 0.67 Y2
static
Por＝Fr＋YoFa
For values of e, Y2 and Yo
see the table below.
ra
φDa
φda
Abutment and
fillet dimensions
mm
da
Da
ras
Constant
Mass (approx.)
kg
Y2
Yo
cylindrical
bore
4.42
3.29
2.50
6.58
4.80
3.72
4.32
3.21
2.44
1 140
2 160
2 890
1 100
2 090
2 840
0.15
4.40
6.55
4.30
1 390
1 340
6
0.15
4.42
6.58
4.32
1 600
1 550
1 684
6
0.16
4.34
6.46
4.24
1 900
1 840
1 776
8
0.15
4.39
6.54
4.29
2 230
2 160
max
max
e
1 156
1 164
1 164
1 424
1 536
1 536
6
8
8
0.15
0.21
0.27
1 216
1 504
6
1 286
1 594
1 356
1 444
min
Axial load factors
Y1
Note: Please refer to page B-234 for outer ring oil inlet and oil groove dimensions.
B-255
tapered
bore
● Adapter
(For spherical roller bearings)
B2
ra
Ba
B1
φd1 φd2
φdb φda
φDa
d1 35 ∼ 70mm
Boundary dimensions
Bearing numbers
Mass1）
Abutment and fillet dimensions
mm
mm
da
db
Ba
min
max
min
d1
B1
d2
B2
35
36
36
46
58
58
58
10
10
10
LH-22208CK;H 308X
21308CK;H 308X
22308CK;H2308X
44
44
45
50
54
52
5
5
5
40
39
39
50
65
65
65
11
11
11
LH-22209CK;H 309X
21309CK;H 309X
22309CK;H2309X
49
49
50
57
61
58
45
42
42
55
70
70
70
12
12
12
LH-22210CK;H 310X
21310CK;H 310X
22310CK;H2310X
54
54
56
50
45
45
45
59
75
75
75
75
12
12
12
12
LH-22211EK;H 311X
LH-22211BK;H 311X
21311K ;H 311X
22311BK;H2311X
55
47
47
47
62
80
80
80
80
13
13
13
13
60
50
50
50
65
85
85
85
85
65
55
55
55
73
70
59
59
59
78
kg
Da
min
ras
max
max
(approx.)
―
―
―
73
81.5
81.5
1
1.5
1.5
0.189
0.189
0.224
8
5
5
―
―
―
78
91.5
91.5
1
1.5
1.5
0.248
0.248
0.28
63
67
65
10
5
5
―
―
―
83
100
100
1
2
2
0.303
0.303
0.362
60
60
60
61
67
67
73
71
11
11
6
6
89.5
―
―
―
91.5
91.5
110
110
1.5
1.5
2
2
0.345
0.345
0.345
0.42
LH-22212EK;H 312X
LH-22212BK;H 312X
21312K ;H 312X
22312BK;H2312X
65
65
65
66
72
72
79
77
9
9
5
5
98
―
―
―
101.5
101.5
118
118
1.5
1.5
2
2
0.394
0.394
0.394
0.481
14
14
14
14
LH-22213EK;H 313X
LH-22213BK;H 313X
21313K ;H 313X
22313BK;H2313X
70
70
70
72
78.5
78.5
85
84
8
9
5
5
107
―
―
―
111.5
111.5
128
128
1.5
1.5
2
2
0.458
0.458
0.458
0.557
98
98
98
98
15
15
15
15
LH-22215EK;H 315X
LH-22215BK;H 315X
21315K ;H 315X
22315BK;H2315X
80
80
80
82
89
89
97
96
12
12
5
5
117.5
―
―
―
121.5
121.5
148
148
1.5
1.5
2
2
0.831
0.831
0.831
1.05
105
105
105
105
17
17
17
17
LH-22216EK;H 316X
LH-22216BK;H 316X
21316K ;H 316X
22316BK;H2316X
86
86
86
87
94.5
94.5
103
103
12
12
5
5
125.5
―
―
―
130
130
158
158
2
2
2
2
1.03
1.03
1.03
1.28
1）Indicates adapter mass.
Note: 1. Please refer to page B-236 to B-239 for bearing dimensions, rated loads, and mass.
2. Please refer to page C-2 to C-10 and C-12 to C-14 for adapter locknut and washer dimensions.
3. Adapter numbers with the suffix "X" signify narrow slit type adapters, and use washers with straight inner tabs.
B-256
● Adapter
(For spherical roller bearings)
B2
ra
Ba
B1
φd1 φd2
φdb φda
φDa
d1 75 ∼ 115mm
Boundary dimensions
Bearing numbers
mm
mm
da
db
Ba
min
max
min
kg
Da
d1
B1
d2
B2
75
63
63
63
82
110
110
110
110
18
18
18
18
LH-22217EK;H 317X
LH-22217BK;H 317X
21317K ;H 317X
22317BK;H2317X
91
91
91
94
100.5
100.5
110
110
12
12
6
6
135
―
―
―
80
65
65
86
65
86
120
120
120
120
120
18
18
18
18
18
LH-22218EK;H 318X
LH-22218BK;H 318X
23218BK;H2318X
21318K ;H 318X
22318BK;H2318X
96
96
99
96
99
107.5
107.5
110
116
117
10
10
18
6
6
85
68
68
90
125
125
125
19
19
19
22219BK;H 319X
21319K ;H 319X
22319BK;H2319X
102
102
105
117
123
123
90
71
97
71
97
130
130
130
130
20
20
20
20
22220BK;H 320X
23220BK;H2320X
21320K ;H 320X
22320BK;H2320X
107
110
107
110
100
81
77
105
77
105
145
145
145
145
145
21
21
21
21
21
23122BK;H3122X
22222BK;H 322X
23222BK;H2322X
21322K ;H 322X
22322BK;H2322X
110
72
88
88
112
112
145
155
155
155
155
22
22
22
22
22
80
92
92
121
155
165
165
165
23
23
23
23
115
Mass1）
Abutment and fillet dimensions
min
ras
max
(approx.)
140
140
166
166
2
2
2.5
2.5
1.18
1.18
1.18
1.45
144
―
―
―
―
150
150
150
176
176
2
2
2
2.5
2.5
1.37
1.37
1.69
1.37
1.69
9
7
7
―
―
―
158
186
186
2
2.5
2.5
1.56
1.56
1.92
123
122
130
129
8
19
7
7
―
―
―
―
168
168
201
201
2
2
2.5
2.5
1.69
2.15
1.69
2.15
117
117
121
117
121
127
137
135
142
142
7
6
17
9
7
―
―
―
―
―
170
188
188
226
226
2
2
2
2.5
2.5
2.25
2.18
2.74
2.18
2.74
23024BK;H3024X
23124BK;H3124X
22224BK;H3124X
23224BK;H2324X
22324BK;H2324X
127
128
128
131
131
136
140
150
147
154
7
7
11
17
7
―
―
―
―
―
170
190
203
203
246
2
2
2
2
2.5
1.93
2.64
2.64
3.19
3.19
23026BK;H3026
23126BK;H3126
22226BK;H3126
23226BK;H2326
137
138
138
142
147
152
161
160
8
8
8
21
―
―
―
―
190
200
216
216
2
2
2.5
2.5
2.85
3.66
3.66
4.6
1）Indicates adapter mass.
Note: 1. Please refer to page B-238 to B-241 for bearing dimensions, rated loads, and mass.
2. Please refer to page C-2 to C-10 and C-12 to C-14 for adapter locknut and washer dimensions.
3. Adapter numbers with the suffix "X" signify narrow slit type adapters, and use washers with straight inner tabs.
B-257
max
● Adapter
(For spherical roller bearings)
B2
ra
Ba
B1
φd1 φd2
φdb φda
φDa
d1 115 ∼ 170mm
Boundary dimensions
Bearing numbers
mm
d1
Mass1）
Abutment and fillet dimensions
da
db
mm
Ba
Da
ras
kg
min
max
min
max
max
(approx.)
B1
d2
B2
115
121
165
23
22326BK;H2326
142
167
8
262
3
4.6
125
82
97
97
131
131
165
180
180
180
180
24
24
24
24
24
23028BK;H3028
23128BK;H3128
22228BK;H3128
23228BK;H2328
22328BK;H2328
147
149
149
152
152
158
165
173
172
179
8
8
8
22
8
200
213
236
236
282
2
2
2.5
2.5
3
3.16
4.34
4.34
5.55
5.55
135
87
111
111
139
139
180
195
195
195
195
26
26
26
26
26
23030BK;H3030
23130BK;H3130
22230BK;H3130
23230BK;H2330
22330BK;H2330
158
160
160
163
163
170
178
188
185
192
8
8
15
20
8
213
238
256
256
302
2
2
2.5
2.5
3
3.89
5.52
5.52
6.63
6.63
140
93
119
119
147
147
190
210
210
210
210
28
28
28
28
28
23032BK;H3032
23132BK;H3132
22232BK;H3132
23232BK;H2332
22332BK;H2332
168
170
170
174
174
181
190
200
198
205
8
8
14
18
8
228
258
276
276
322
2
2
2.5
2.5
3
5.21
7.67
7.67
9.14
9.14
150
101
122
122
154
154
200
220
220
220
220
29
29
29
29
29
23034BK;H3034
23134BK;H3134
22234BK;H3134
23234BK;H2334
22334BK;H2334
179
180
180
185
185
193
202
212
218
218
8
8
10
18
8
248
268
292
292
342
2
2
3
3
3
5.99
8.38
8.38
10.2
10.2
160
109
131
131
161
161
210
230
230
230
230
30
30
30
30
30
23036BK;H3036
23136BK;H3136
22236BK;H3136
23236BK;H2336
22336BK;H2336
189
191
191
195
195
204
215
225
223
230
8
8
18
22
8
268
286
302
302
362
2
2.5
3
3
3
6.83
9.5
9.5
11.3
11.3
170
112
141
141
169
169
220
240
240
240
240
31
31
31
31
31
23038BK;H3038
23138BK;H3138
22238BK;H3138
23238BK;H2338
22338BK;H2338
199
202
202
206
206
215
228
238
236
243
9
9
21
21
9
278
306
322
322
378
2
2.5
3
3
4
7.45
10.8
10.8
12.6
12.6
1）Indicates adapter mass.
Note: 1. Please refer to page B-240 to B-243 for bearing dimensions, rated loads, and mass.
2. Please refer to page C-2 to C-10 and C-12 to C-14 for adapter locknut and washer dimensions.
B-258
● Adapter
(For spherical roller bearings)
B3
B2
ra
Ba
B1
B1
φd1 φd2
φd1 φd2
d1≦180mm
ra
Ba
φdb φda
φDa
φdb φda
φDa
d1≧200mm
d1 180 ∼ 300mm
Boundary dimensions
Bearing numbers
Mass1）
Abutment and fillet dimensions
mm
da
db
mm
Ba
Da
ras
kg
min
max
min
max
max
d1
B1
d2
B2
B3
180
120
150
150
176
176
240
250
250
250
250
32
32
32
32
32
―
―
―
―
―
23040BK;H3040
23140BK;H3140
22240BK;H3140
23240BK;H2340
22340BK;H2340
210
212
212
216
216
227
240
250
248
255
10
10
24
20
10
298
326
342
342
398
2
2.5
3
3
4
9.19
12.1
12.1
13.9
13.9
200
126
158
158
183
183
260
280
280
280
280
―
―
―
―
―
41
44
44
44
44
23044BK;H3044
23144BK;H3144
22244BK;H3144
23244BK;H2344
22344BK;H2344
231
233
233
236
236
250
264
274
271
278
12
10
22
11
10
326
352
382
382
438
2.5
3
3
3
4
10.2
14.7
14.7
16.7
16.7
220
133
169
169
196
196
290
300
300
300
300
―
―
―
―
―
46
46
46
46
46
23048BK;H3048
23148BK;H3148
22248BK;H3148
23248BK;H2348
22348BK;H2348
251
254
254
257
257
272
288
298
295
302
11
11
19
6
11
346
382
422
422
478
2.5
3
3
3
4
13.2
17.3
17.3
19.7
19.7
240
145
187
187
208
208
310
330
330
330
330
―
―
―
―
―
46
49
49
49
49
23052BK;H3052
23152BK;H3152
22252BK;H3152
23252BK;H2352
22352BK;H2352
272
276
276
278
278
295
313
323
319
326
13
11
25
2
11
382
422
458
458
512
3
3
4
4
5
15.1
22
22
24.2
24.2
260
152
192
192
221
221
330
350
350
350
350
―
―
―
―
―
50
51
51
51
51
23056BK;H3056
23156BK;H3156
22256BK;H3156
23256BK;H2356
22356BK;H2356
292
296
296
299
299
317
336
346
343
350
12
12
28
11
12
402
438
478
478
552
3
4
4
4
5
17.7
24.5
24.5
27.8
27.8
280
168
208
208
240
360
380
380
380
―
―
―
―
54
53
53
53
23060BK;H3060
23160BK;H3160
22260BK;H3160
23260BK;H3260
313
317
317
321
340
361
371
368
12
12
32
12
442
478
518
518
3
4
4
4
22.8
30.2
30.2
34.1
300
171
226
226
380
400
400
―
―
―
55
56
56
23064BK;H3064
23164BK;H3164
22264BK;H3164
334
339
339
363
384
394
13
13
39
462
518
558
3
4
4
24.6
34.9
34.9
1）Indicates adapter mass.
Note: 1. Please refer to page B-242 to B-247 for bearing dimensions, rated loads, and mass.
2. Please refer to page C-2 to C-10 and C-12 to C-14 for adapter locknut and washer dimensions.
B-259
(approx.)
● Adapter
(For spherical roller bearings)
B3
ra
Ba
B1
φd1 φd2
φdb φda
φDa
d1 300 ∼ 470mm
Boundary dimensions
Bearing numbers
Mass1）
Abutment and fillet dimensions
mm
da
db
mm
Ba
Da
ras
kg
min
max
min
max
max
(approx.)
d1
B1
d2
B3
300
258
400
56
23264BK;H3264
343
393
13
558
4
39.3
320
187
254
288
400
440
440
58
72
72
23068BK;H3068
23168BK;H3168
23268BK;H3268
355
360
364
386
409
421
14
14
14
498
558
592
4
4
5
28.7
49.5
54.6
340
188
259
299
420
460
460
58
75
75
23072BK;H3072
23172BK;H3172
23272BK;H3272
375
380
385
408
432
442
14
14
14
518
578
622
4
4
5
30.5
54.2
60.2
360
193
264
310
450
490
490
62
77
77
23076BK;H3076
23176BK;H3176
23276BK;H3276
396
401
405
431
456
465
15
15
15
538
598
652
4
4
5
35.8
61.7
69.6
380
210
272
328
470
520
520
66
82
82
23080BK;H3080
23180BK;H3180
23280BK;H3280
417
421
427
454
479
488
15
15
15
578
622
692
4
5
5
41.3
70.6
81
400
212
304
352
490
540
540
66
90
90
23084BK;H3084
23184BK;H3184
23284BK;H3284
437
443
448
476
504
515
16
16
16
598
672
724
4
5
6
43.7
84.2
94
410
228
307
361
520
560
560
77
90
90
23088BK;H3088
23188BK;H3188
23288BK;H3288
458
464
469
499
527
539
17
17
17
622
692
754
5
5
6
65.2
104
118
430
234
326
382
540
580
580
77
95
95
23092BK;H3092
23192BK;H3192
23292BK;H3292
478
485
491
521
551
563
17
17
17
652
724
794
5
6
6
69.5
116
132
450
237
335
397
560
620
620
77
95
95
23096BK;H3096
23196BK;H3196
23296BK;H3296
499
505
512
544
575
590
18
18
18
672
754
834
5
6
6
73.3
133
152
470
247
356
428
580
630
630
85
100
100
230/500BK;H30/500
231/500BK;H31/500
232/500BK;H32/500
519
527
534
566
600
618
18
18
18
692
794
884
5
6
6
81.8
143
166
1）Indicates adapter mass.
Note: 1. Please refer to page B-242 to B-251 for bearing dimensions, rated loads, and mass.
2. Please refer to page C-2 to C-10 and C-12 to C-14 for adapter locknut and washer dimensions.
B-260
● Withdrawal Sleeves
(For spherical roller bearings)
G1
ra
B3
φd1
φda
φDa
B4
G
d1 35 ∼ 70mm
Boundary dimensions
Bearing numbers
mm
mm
thread1）
d1
G
Mass3） Appro-4）
priate
kg
nut no.
Abutment and fillet dimensions
da
B3
G1
B42）
Da
ras
min
max
min
max
max
(approx.)
35
M45 × 1.5
M45 × 1.5
M45 × 1.5
29
29
40
6
6
7
32
32
43
LH-22208CK ;AH 308
21308CK ;AH 308
22308CK ;AH 2308
47
48.5
48.5
―
―
―
―
―
―
73
81.5
81.5
1
1.5
1.5
0.09
0.09
0.128
AN09
AN09
AN09
40
M50 × 1.5
M50 × 1.5
M50 × 1.5
31
31
44
6
6
7
34
34
47
LH-22209CK ;AH 309
21309CK ;AH 309
22309CK ;AH 2309
52
53.5
53.5
―
―
―
―
―
―
78
91.5
91.5
1
1.5
1.5
0.109
0.109
0.164
AN10
AN10
AN10
45
M55 × 2
M55 × 2
M55 × 2
35
35
50
7
7
9
38
38
53
LH-22210CK ;AHX 310
21310CK ;AHX 310
22310CK ;AHX 2310
57
60
60
―
―
―
―
―
―
83
100
100
1
2
2
0.137
0.137
0.209
AN11
AN11
AN11
50
M60 × 2
M60 × 2
M60 × 2
M60 × 2
37
37
37
54
7
7
7
10
40
40
40
57
LH-22211EK;AHX 311
LH-22211BK;AHX 311
21311K ;AHX 311
22311BK;AHX 2311
63.5
63.5
65
65
67
―
―
―
89.5
―
―
―
91.5
91.5
110
110
1.5
1.5
2
2
0.161
0.161
0.161
0.253
AN12
AN12
AN12
AN12
55
M65 × 2
M65 × 2
M65 × 2
M65 × 2
40
40
40
58
8
8
8
11
43
43
43
61
LH-22212EK ;AHX 312
LH-22212BK ;AHX 312
21312K ;AHX 312
22312BK ;AHX 2312
68.5
68.5
72
72
72
―
―
―
98
―
―
―
101.5
101.5
118
118
1.5
1.5
2
2
0.189
0.189
0.189
0.297
AN13
AN13
AN13
AN13
60
M75 × 2
M75 × 2
M75 × 2
M75 × 2
42
42
42
61
8
8
8
12
45
45
45
64
LH-22213EK ;AH 313
LH-22213BK ;AH 313
21313K ;AH 313
22313BK;AH 2313
73.5
73.5
77
77
78.5
―
―
―
107
―
―
―
111.5
111.5
128
128
1.5
1.5
2
2
0.253
0.253
0.253
0.395
AN15
AN15
AN15
AN15
65
M80 × 2
M80 × 2
M80 × 2
M80 × 2
43
43
43
64
8
8
8
12
47
47
47
68
LH-22214EK ;AH 314
LH-22214BK ;AH 314
21314K ;AH 314
22314BK;AHX 2314
78.5
78.5
82
82
83.5
―
―
―
112.5
―
―
―
116.5
116.5
138
138
1.5
1.5
2
2
0.28
0.28
0.28
0.466
AN16
AN16
AN16
AN16
70
M85 × 2
M85 × 2
M85 × 2
M85 × 2
45
45
45
68
8
8
8
12
49
49
49
72
LH-22215EK ;AH 315
LH-22215BK ;AH 315
21315K ;AH 315
22315BK ;AHX 2315
83.5
83.5
87
87
89
―
―
―
117.5
―
―
―
121.5
121.5
148
148
1.5
1.5
2
2
0.313
0.313
0.313
0.534
AN17
AN17
AN17
AN17
1）Standard thread shapes and dimensions are as per JIS B0207 (metric thread).
2）Indicates reference dimensions before attachment of withdrawal sleeve.
3）Indicates withdrawal sleeve mass.
4）Indicates number of nut to be used at time of disassembly. See pages C-2 to C-10 for nut dimensions.
Note: 1. Please refer to page B-236, B-239 for bearing dimensions, rated loads, and mass.
B-261
● Withdrawal Sleeves
(For spherical roller bearings)
G1
ra
B3
φd1
φda
φDa
B4
G
d1 75 ∼ 115mm
Boundary dimensions
Bearing numbers
mm
mm
thread1）
da
B3
Mass3） Appro-4）
priate
kg
nut no.
Abutment and fillet dimensions
G1
B42）
d1
G
75
M90 × 2
M90 × 2
M90 × 2
M90 × 2
48
48
48
71
8
8
8
12
52
52
52
75
80
M95 × 2
M95 × 2
M95 × 2
M95 × 2
52
52
52
74
9
9
9
13
85
M100 × 2
M100 × 2
M100 × 2
M100 × 2
M100 × 2
53
53
63
53
79
90
M105 × 2
M105 × 2
M105 × 2
Da
min
max
LH-22216EK;AH 316
LH-22216BK;AH 316
21316K ;AH 316
22316BK;AHX 2316
90
90
92
92
94.5
―
―
―
56
56
56
78
LH-22217EK;AHX 317
LH-22217BK;AHX 317
21317K ;AHX 317
22317BK;AHX 2317
95
95
99
99
9
9
10
9
14
57
57
67
57
83
LH-22218EK;AHX 318
LH-22218BK;AHX 318
23218BK;AHX 3218
21318K ;AHX 318
22318BK;AHX 2318
57
57
85
10
10
16
61
61
89
95
M110 × 2
M110 × 2
M110 × 2
M110 × 2
59
73
59
90
10
11
10
16
63
77
63
94
105
M120 × 2
M115 × 2
M120 × 2
M125 × 2
M120 × 2
M125 × 2
68
82
68
82
63
98
11
13
11
11
12
16
115
M130 × 2
M125 × 2
M125 × 2
M130 × 2
60
73
73
75
13
13
13
12
min
ras
max
max
(approx.)
125.5
―
―
―
130
130
158
158
2
2
2
2
0.365
0.365
0.365
0.597
AN18
AN18
AN18
AN18
100.5
―
―
―
135
―
―
―
140
140
166
166
2
2
2.5
2.5
0.429
0.429
0.429
0.67
AN19
AN19
AN19
AN19
100
100
100
104
104
107.5
―
―
―
―
144
―
―
―
―
150
150
150
176
176
2
2
2
2.5
2.5
0.461
0.461
0.576
0.461
0.779
AN20
AN20
AN20
AN20
AN20
22219BK;AHX 319
21319K ; AHX 319
22319BK;AHX 2319
107
109
109
―
―
―
―
―
―
158
186
186
2
2.5
2.5
0.532
0.532
0.886
AN21
AN21
AN21
22220BK;AHX 320
23220BK;AHX 3220
21320K ; AHX 320
22320BK;AHX 2320
112
112
114
114
―
―
―
―
―
―
―
―
168
168
201
201
2
2
2.5
2.5
0.582
0.767
0.582
0.998
AN22
AN22
AN22
AN22
72
91
72
86
67
102
23122BK ; AHX 3122
24122BK30 ; AH 24122
22222BK ; AHX 3122
23222BK ; AHX 3222
21322K
; AHX 322
22322BK ; AHX 2322
120
120
122
122
124
124
―
―
―
―
―
―
―
―
―
―
―
―
170
170
188
188
226
226
2
2
2
2
2.5
2.5
0.76
0.73
0.76
1.04
0.663
1.35
AN24
AN23
AN24
AN25
AN24
AN25
64
82
82
79
23024BK ; AHX 3024
24024BK30 ; AH 24024
24024CK30 ; AH 24024
23124BK ; AHX 3124
130
130
130
130
―
―
―
―
―
―
―
―
170
170
170
190
2
2
2
2
0.75
0.65
0.65
0.95
AN26
AN25
AN25
AN26
1）Standard thread shapes and dimensions are as per JIS B0207 (metric thread).
2）Indicates reference dimensions before attachment of withdrawal sleeve.
3）Indicates withdrawal sleeve mass.
4）Indicates number of nut to be used at time of disassembly. See pages C-2 to C-10 for nut dimensions.
Note: 1. Please refer to page B-238, B-241 for bearing dimensions, rated loads, and mass.
B-262
● Withdrawal Sleeves
(For spherical roller bearings)
G1
ra
B3
φd1
φda
φDa
B4
G
d1 115 ∼ 150mm
Boundary dimensions
Bearing numbers
Abutment and fillet dimensions
mm
thread1）
Mass3）
da
mm
Da
ras
kg
min
max
max
(approx.)
Appro-4）
priate
nut no.
d1
G
B3
G1
B42）
115
M130 × 2
M130 × 2
M135 × 2
M135 × 2
93
75
90
105
13
12
13
17
102
79
94
109
24124BK30
22224BK
23224BK
22324BK
; AH 24124
; AHX 3124
; AHX 3224
; AHX 2324
130
132
132
134
190
203
203
246
2
2
2
2.5
1
0.95
1.3
1.6
AN26
AN26
AN27
AN27
125
M140 × 2
M135 × 2
M135 × 2
M140 × 2
M140 × 2
M140 × 2
M145 × 2
M145 × 2
67
83
83
78
94
78
98
115
14
14
14
12
14
12
15
19
71
93
93
82
104
82
102
119
23026BK ; AHX 3026
24026BK30 ; AH 24026
24026CK30 ; AH 24026
23126BK ; AHX 3126
24126BK30 ; AH 24126
22226BK ; AHX 3126
23226BK ; AHX 3226
22326BK ; AHX 2326
140
140
140
140
140
144
144
148
190
190
190
200
200
216
216
262
2
2
2
2
2
2.5
2.5
3
0.93
0.84
0.84
1.08
1.11
1.08
1.58
1.97
AN28
AN27
AN27
AN28
AN28
AN28
AN29
AN29
135
M150 × 2
M145 × 2
M145 × 2
M150 × 2
M150 × 2
M150 × 2
M155 × 3
M155 × 3
68
83
83
83
99
83
104
125
14
14
14
14
14
14
15
20
73
93
93
88
109
88
109
130
23028BK ; AHX 3028
24028BK30 ; AH 24028
24028CK30 ; AH 24028
23128BK ; AHX 3128
24128BK30 ; AH 24128
22228BK ; AHX 3128
23228BK ; AHX 3228
22328BK ; AHX 2328
150
150
150
152
152
154
154
158
200
200
200
213
213
236
236
282
2
2
2
2
2
2.5
2.5
3
1.01
0.91
0.91
1.28
1.25
1.28
1.84
2.33
AN30
AN29
AN29
AN30
AN30
AN30
AN31
AN31
145
M160 × 3
M155 × 3
M155 × 3
M165 × 3
M160 × 3
M165 × 3
M165 × 3
M165 × 3
72
90
90
96
115
96
114
135
15
15
15
15
15
15
17
24
77
101
101
101
126
101
119
140
23030BK ; AHX 3030
24030BK30 ; AH 24030
24030CK30 ; AH 24030
23130BK ; AHX 3130
24130BK30 ; AH 24130
22230BK ; AHX 3130
23230BK ; AHX 3230
22330BK ; AHX 2330
162
162
162
162
162
164
164
168
213
213
213
238
238
256
256
302
2
2
2
2
2
2.5
2.5
3
1.15
1.04
1.04
1.79
1.56
1.79
2.22
2.82
AN32
AN31
AN31
AN33
AN32
AN33
AN33
AN33
150
M170 × 3
M170 × 3
M170 × 3
M180 × 3
77
95
95
103
16
15
15
16
82
106
106
108
23032BK ; AH 3032
24032BK30 ; AH 24032
24032CK30 ; AH 24032
23132BK ; AH 3132
172
172
172
172
228
228
228
258
2
2
2
2
2.06
2.33
2.33
3.21
AN34
AN34
AN34
AN36
1）Standard thread shapes and dimensions are as per JIS B0207 (metric thread).
2）Indicates reference dimensions before attachment of withdrawal sleeve.
3）ndicates withdrawal sleeve mass.
4）Indicates number of nut to be used at time of disassembly. See pages C-2 to C-10 for nut dimensions.
Note: 1. Please refer to page B-240, B-243 for bearing dimensions, rated loads, and mass.
B-263
● Withdrawal Sleeves
(For spherical roller bearings)
G1
ra
B3
φd1
φda
φDa
B4
G
d1 150 ∼ 190mm
Boundary dimensions
Bearing numbers
Abutment and fillet dimensions
mm
thread1）
Mass3）
da
mm
Da
ras
kg
min
max
max
(approx.)
Appro-4）
priate
nut no.
d1
G
B3
G1
B42）
150
M170 × 3
M180 × 3
M180 × 3
M180 × 3
124
103
124
140
15
16
20
24
135
108
130
146
24132BK30
22232BK
23232BK
22332BK
;AH 24132
;AH 3132
;AH 3232
;AH 2332
172
174
174
178
258
276
276
322
2
2.5
2.5
3
3
3.21
4.08
4.72
AN34
AN36
AN36
AN36
160
M180 × 3
M180 × 3
M180 × 3
M190 × 3
M180 × 3
M190 × 3
M190 × 3
M190 × 3
85
106
106
104
125
104
134
146
17
16
16
16
16
16
24
24
90
117
117
109
136
109
140
152
23034BK ;AH 3034
24034BK30 ;AH 24034
24034CK30 ;AH 24034
23134BK ;AH 3134
24134BK30 ;AH 24134
22234BK ;AH 3134
23234BK ;AH 3234
22334BK ;AH 2334
182
182
182
182
182
188
188
188
248
248
248
268
268
292
292
342
2
2
2
2
2
3
3
3
2.43
2.8
2.8
3.4
3.21
3.4
4.8
5.25
AN36
AN36
AN36
AN38
AN36
AN38
AN38
AN38
170
M190 × 3
M190 × 3
M190 × 3
M200 × 3
M190 × 3
M200 × 3
M200 × 3
M200 × 3
92
116
116
116
134
105
140
154
17
16
16
19
16
17
24
26
98
127
127
122
145
110
146
160
23036BK ;AH 3036
24036BK30 ;AH 24036
24036CK30 ;AH 24036
23136BK ;AH 3136
24136BK30 ;AH 24136
22236BK ;AH 2236
23236BK ;AH 3236
22336BK ;AH 2336
192
192
192
194
194
198
198
198
268
268
268
286
286
302
302
362
2
2
2
2.5
2.5
3
3
3
2.81
3.1
3.1
4.22
3.68
3.73
5.32
5.83
AN38
AN38
AN38
AN40
AN38
AN40
AN40
AN40
180
Tr205 × 4
M200 × 3
M200 × 3
Tr210 × 4
M200 × 3
Tr210 × 4
Tr210 × 4
Tr210 × 4
96
118
118
125
146
112
145
160
18
18
18
20
18
18
25
26
102
131
131
131
159
117
152
167
23038BK ;AH 3038
24038BK30 ;AH 24038
24038CK30 ;AH 24038
23138BK ;AH 3138
24138BK30 ;AH 24138
22238BK ;AH 2238
23238BK ;AH 3238
22338BK ;AH 2338
202
202
202
204
204
208
208
212
278
278
278
306
306
322
322
378
2
2
2
2.5
2.5
3
3
4
3.32
3.5
3.5
4.89
4.28
4.25
5.9
6.63
HNL41
AN40
AN40
HN42
AN40
HN42
HN42
HN42
190
Tr215 × 4
Tr210 × 4
Tr220 × 4
Tr210 × 4
102
127
134
158
19
18
21
18
108
140
140
171
23040BK
24040BK30
23140BK
24140BK30
212
212
214
214
298
298
326
326
2
2
2.5
2.5
3.8
3.93
5.49
5.1
HNL43
HN42
HN44
HN42
;AH 3040
;AH 24040
;AH 3140
;AH 24140
1）Standard thread shapes and dimensions are as per JIS B0207 (metric thread).
2）Indicates reference dimensions before attachment of withdrawal sleeve.
3）Indicates withdrawal sleeve mass.
4）Indicates number of nut to be used at time of disassembly. See pages C-2 to C-10 for nut dimensions.
Note: 1. Please refer to page B-242, B-245 for bearing dimensions, rated loads, and mass.
B-264
● Withdrawal Sleeves
(For spherical roller bearings)
G1
ra
B3
φd1
φda
φDa
B4
G
d1 190 ∼ 260mm
Boundary dimensions
Bearing numbers
Abutment and fillet dimensions
mm
thread1）
Mass3）
kg
Appro-4）
priate
nut no.
da
mm
Da
ras
min
max
max
(approx.)
218
218
222
342
342
398
3
3
4
4.68
6.68
7.54
HN44
HN44
HN44
d1
G
B3
G1
B42）
190
Tr220 × 4
Tr220 × 4
Tr220 × 4
118
153
170
19
25
30
123
160
177
22240BK
23240BK
22340BK
;AH
;AH
;AH
200
Tr235 × 4
Tr230 × 4
Tr240 × 4
Tr230 × 4
Tr240 × 4
Tr240 × 4
Tr240 × 4
111
138
145
170
130
181
181
20
20
23
20
20
30
30
117
152
151
184
136
189
189
23044BK
24044BK30
23144BK
24144BK30
22244BK
23244BK
22344BK
;AH 3044
;AH 24044H
;AH 3144
;AH 24144H
;AH 2244
;AH 2344
;AH 2344
234
234
238
238
238
238
242
326
326
352
352
382
382
438
2.5
2.5
3
3
3
3
4
7.4
8.25
10.4
10.2
9.1
13.5
13.5
HNL47
HN46
HN48
HN46
HN48
HN48
HN48
220
Tr260 × 4
Tr250 × 4
Tr260 × 4
Tr260 × 4
Tr260 × 4
Tr260 × 4
Tr260 × 4
116
138
154
180
144
189
189
21
20
25
20
21
30
30
123
153
161
195
150
197
197
23048BK
24048BK30
23148BK
24148BK30
22248BK
23248BK
22348BK
;AH 3048
;AH 24048H
;AH 3148
;AH 24148H
;AH 2248
;AH 2348
;AH 2348
254
254
258
258
258
258
262
346
346
382
382
422
422
478
2.5
2.5
3
3
3
3
4
8.75
8.98
12
12.5
11.1
15.5
15.5
HNL52
HN50
HN52
HN52
HN52
HN52
HN52
240
Tr280 × 4
Tr270 × 4
Tr290 × 4
Tr280 × 4
Tr290 × 4
Tr290 × 4
Tr290 × 4
128
162
172
202
155
205
205
23
22
26
22
23
30
30
135
178
179
218
161
213
213
23052BK
24052BK30
23152BK
24152BK30
22252BK
23252BK
22352BK
;AH 3052
;AH 24052
;AH 3152
;AH 24152H
;AH 2252
;AH 2352
;AH 2352
278
278
278
278
282
282
288
382
382
422
422
458
458
512
3
3
3
3
4
4
5
10.7
11.8
16.2
15.4
14
19.6
19.6
HNL56
HN54
HN58
HN56
HN58
HN58
HN58
Tr300 × 4
Tr290 × 4
Tr310 × 5
Tr300 × 4
Tr310 × 5
Tr310 × 5
Tr310 × 5
131
162
175
202
155
212
212
24
22
28
22
24
30
30
139
179
183
219
163
220
220
23056BK
24056BK30
23156BK
24156BK30
22256BK
23256BK
22356BK
;AH 3056
;AH 24056H
;AH 3156
;AH 24156H
;AH 2256
;AH 2356
;AH 2356
298
298
302
302
302
302
308
402
402
438
438
478
478
552
3
3
4
4
4
4
5
12
12.8
17.5
16.3
15.2
21.6
21.6
HNL60
HN58
HN62
HN60
HN62
HN62
HN62
260
2240
3240
2340
1）Standard thread shapes and dimensions are as per JIS B0207 (metric thread).
2）Indicates reference dimensions before attachment of withdrawal sleeve.
3）Indicates withdrawal sleeve mass.
4）Indicates number of nut to be used at time of disassembly. See pages C-2 to C-10 for nut dimensions.
Note: 1. Please refer to page B-244, B-247 for bearing dimensions, rated loads, and mass.
2. Withdrawal sleeve numbers appended with the suffix "H" signify high pressure oil (hydraulic) design. (See page B-227)
B-265
● Withdrawal Sleeves
(For spherical roller bearings)
G1
ra
B3
φd1
φda
φDa
B4
G
d1 280 ∼ 400mm
Boundary dimensions
Bearing numbers
Abutment and fillet dimensions
mm
thread1）
da
mm
Da
ras
min
max
max
Mass3）
kg
Appro-4）
priate
nut no.
d1
G
B3
G1
B42）
280
Tr320 × 5
Tr310 × 5
Tr330 × 5
Tr320 × 5
Tr330 × 5
Tr330 × 5
145
184
192
224
170
228
26
24
30
24
26
34
153
202
200
242
178
236
23060BK
24060BK30
23160BK
24160BK30
22260B
23260BK
;AH 3060
;AH 24060H
;AH 3160
;AH 24160H
;AH 2260
;AH 3260
318
318
322
322
322
322
442
442
478
478
518
518
3
3
4
4
4
4
14.4
15.5
20.8
19.5
18.1
26
HNL64
HN62
HN66
HN64
HN66
HN66
300
Tr345 × 5
Tr330 × 5
Tr350 × 5
Tr340 × 5
Tr350 × 5
Tr350 × 5
149
184
209
242
180
246
27
24
31
24
27
36
157
202
217
260
190
254
23064BK
24064BK30
23164BK
24164BK30
22264BK
23264BK
;AH 3064
;AH 24064H
;AH 3164
;AH 24164H
;AH 2264
;AH 3264
338
338
342
342
342
342
462
462
518
518
558
558
3
3
4
4
4
4
16
16.6
24.5
21.4
20.2
30.6
HNL69
HN66
HN70
HN68
HN70
HN70
320
Tr365 × 5
Tr360 × 5
Tr370 × 5
Tr360 × 5
162
206
225
269
28
26
33
26
171
225
234
288
23068BK
24068BK30
23168BK
24168BK30
;AH 3068
;AH 24068H
;AH 3168
;AH 24168H
362
362
362
362
498
498
558
558
4
4
4
4
19.5
21.7
29
27.1
HN73
HNL72
HN74
HN72
340
Tr385 × 5
Tr380 × 5
Tr400 × 5
Tr380 × 5
167
206
229
269
30
26
35
26
176
226
238
289
23072BK
24072BK30
23172BK
24172BK30
;AH 3072
;AH 24072H
;AH 3172
;AH 24172H
382
382
382
382
518
518
578
578
4
4
4
4
21
22.7
33
29.6
HNL77
HNL76
HN80
HN76
360
Tr410 × 5
Tr400 × 5
Tr420 × 5
Tr400 × 5
170
208
232
271
31
28
36
28
180
228
242
291
23076BK
24076BK30
23176BK
24176BK30
;AH 3076
;AH 24076H
;AH 3176
;AH 24176H
402
402
402
402
538
538
598
598
4
4
4
4
23.2
23.7
35.7
31.3
HNL82
HNL80
HN84
HN80
380
Tr430 × 5
Tr420 × 5
Tr440 × 5
Tr420 × 5
183
228
240
278
33
28
38
28
193
248
250
298
23080BK
24080BK30
23180BK
24180BK30
;AH 3080
;AH 24080H
;AH 3180
;AH 24180H
422
422
428
428
578
578
622
622
4
4
5
5
27.3
27.1
39.5
34.4
HNL86
HNL84
HN88
HN84
400
Tr450 × 5
Tr440 × 5
186
230
34
30
196
252
23084BK ;AH 3084
24084BK30 ;AH 24084H
442
442
598
598
4
4
29
29
HNL90
HNL88
1）Standard thread shapes and dimensions are as per JIS B0207 (metric thread).
2）Indicates reference dimensions before attachment of withdrawal sleeve.
3）Indicates withdrawal sleeve mass.
4）Indicates number of nut to be used at time of disassembly. See pages C-2 to C-10 for nut dimensions.
Note: 1. Please refer to page B-246, B-249 for bearing dimensions, rated loads, and mass.
2. Withdrawal sleeve numbers appended with the suffix "H" signify high pressure oil (hydraulic) design. (See page B-235)
B-266
(approx.)
● Withdrawal Sleeves
(For spherical roller bearings)
G1
ra
B3
φd1
φda
φDa
B4
G
d1 400 ∼ 480mm
Boundary dimensions
Bearing numbers
Abutment and fillet dimensions
mm
thread1）
da
mm
Da
ras
min
max
max
Mass3）
kg
Appro-4）
priate
nut no.
d1
G
B3
G1
B42）
400
Tr460 × 5
Tr440 × 5
266
310
40
30
276
332
23184BK
; AH 3184
24184BK30 ; AH 24184H
448
448
672
672
5
5
46.5
40.3
HN92
HN88
420
Tr470 × 5
Tr460 × 5
Tr480 × 5
194
242
270
35
30
42
205
264
281
23088BK
; AHX 3088
24088BK30 ; AH 24088H
23188BK
; AHX 3188
468
468
468
622
622
692
5
5
5
32
31.9
49.8
HNL94
HNL92
HN96
440
Tr460 × 5
Tr490 × 5
Tr480 × 5
Tr510 × 6
Tr480 × 5
310
202
250
285
332
30
37
32
43
32
332
213
273
296
355
24188BK30
23092BK
24092BK30
23192BK
24192BK30
; AH 24188H
; AHX 3092
; AH 24092H
; AHX 3192
; AH 24192H
468
488
488
496
496
692
652
652
724
724
5
5
5
6
6
42.3
35.2
34.7
57.9
47.6
HN92
HNL98
HNL96
HN102
HN96
460
Tr520 × 6
Tr500 × 5
Tr530 × 6
Tr500 × 5
205
250
295
340
38
32
45
32
217
273
307
363
23096BK
24096BK30
23196BK
24196BK30
; AHX 3096
; AH 24096H
; AHX 3196
; AH 24196H
508
508
516
516
672
672
754
754
5
5
6
6
39.2
36.6
63.1
52.6
HNL104
HNL100
HN106
HN100
480
Tr540 × 6
Tr530 × 6
Tr550 × 6
Tr530 × 6
209
253
313
360
40
35
47
35
221
276
325
383
230/500BK ; AHX 30/500
240/500BK30; AH 240/500H
231/500BK ; AHX 31/500
241/500BK30; AH 241/500H
528
528
536
536
692
692
794
794
5
5
6
6
42.5
43.9
70.9
59
HNL108
HNL106
HN110
HN106
1）Standard thread shapes and dimensions are as per JIS B0207 (metric thread).
2）Indicates reference dimensions before attachment of withdrawal sleeve.
3）Indicates withdrawal sleeve mass.
4）Indicates number of nut to be used at time of disassembly. See pages C-2 to C-10 for nut dimensions.
Note: 1. Please refer to page B-248, B-251 for bearing dimensions, rated loads, and mass.
2. Withdrawal sleeve numbers appended with the suffix "H" signify high pressure oil (hydraulic) design. (See page B-227)
B-267
(approx.)
●Thrust Bearings
Single direction thrust ball bearings
Double direction angular contact
thrust ball bearings
High speed / axial load duplex angular
contact thrust ball bearings
These bearings are designed primarily to support axial
loads at contact angles between 30˚ and 90˚. Just as with
radial bearings, these bearings differ according to the type of
rolling element they use: there are thrust ball bearings that
use balls and thrust roller bearings that use rollers.
The configuration and characteristics of each type of
bearing are given.
With thrust bearings, it is necessary to supply an axial
preload in order to prevent slipping movement between the
bearing's rolling elements and raceways. For more detailed
information on this point, please refer to the material
concerning bearing preload on page A-62.
be supported in only one direction, radial loads can not be
accommodated, therefore these bearings are unsuitable for
high speed operation.
Table 1 lists the standard cage types for single direction
thrust ball bearings.
2. Angular contact thrust ball bearings
Angular contact thrust ball bearings are high precision
bearings which are widely used to handle axial loads from
machine tool main shafts. These bearings come in a number
of varieties including double direction angular contact thrust
ball bearings (series 5629 and 5620), and high speed / axial
load duplex angular contact thrust ball bearings (HTA
series).
These bearings have the same bore diameter and outer
diameter as double row cylindrical roller bearings (series
NN30, NN49, and NNU49) and can be arranged for use
together. Table 2 shows the construction and characteristics
of these various bearings.
1. Single direction thrust ball bearings
As shown in Diagram 1, the steel balls of single direction
thrust ball bearings are arranged between a pair of shaft
housing washers (bearing shaft washer and housing shaft
washer), and the normal contact angle is 90˚. Axial loads can
Table 1 Standard cage types for single direction thrust ball bearings
Bearing
series
511
512
513
514
Molded
resin cage
51100
∼51107
51200
∼51207
−
−
Pressed
cage
51108
∼51152
51208
∼51224
51305
∼51320
51405
∼51415
Machined
cage
51156
∼511/530
51226
∼51260
51322
∼51340
51416
∼51420
Spherical roller thrust bearings
Note: Due to their material properties, molded resin cages can not be
used in applications where temperatures exceed 120˚C.
Diagram 1. Single direction thrust ball bearing
(with pressed cage)
B-269
●Thrust Bearings
Table 2 Angular contact thrust ball bearing construction and characteristics
Bearing no.
Double direction angular contact thrust bearing
High speed / axial load duplex angular
contact thrust ball bearing
Bearing series
Series 5629, 5620
HTA, DB series
Initial contact angle
60˚
40˚, 30˚
Standard cage type
Machined cage
Molded resin cage, Machined cage
Bearing construction
¡5629 is used in combination with NN (NNU) 49 and
5620 with NN30.
¡High axial direction rigidity; can support axial loads
in either direction
¡Unsuitable for vertical shafts
¡Oil inlet and oil groove dimensions listed in
dimension charts
Characteristics
¡HTA9, DB can be arranged and used with
NN (NNU) 49: HTA0, DB can be arranged and
used with NN30
¡Bearing outer diameter dimension same as double
direction angular contact thrust ball bearings minus
tolerances (suffix code: L); can only support axial
loads
¡Axial rigidity is less than that of high-speed duplex
angular contact ball bearings (for axial loads).
¡Allowable axial load should be regulated to approx.
1/6 of the rated basic static load
See Table 6.9 on p. A-41
Bearing accuracy
See Table 3
Standard preload
See Table 5
2B
A
Dimension A = dimension 2B
Washer D
Washer C
Interchangeability
Double direction angular contact
thrust ball bearing
Series 5629
Series 5620
High speed / axial load duplex angular contact thrust ball bearing
HTA9DB series
HTA0DB series
Because dimension A = dimension 2B, it is necessary to
change the washer dimension.
For more details about these bearings, please refer to the NTN machine tool precision bearing catalog.
Table 3 Standard cages for duplex angular contact ball
bearings for high-speed axial loads
Bearing
series
Formed resin
cage
Machined
cage
HTA 9
HTA 0
−
HTA 010∼HTA 032
HTA 920∼HTA 964
HTA 005∼HTA 009
HTA 034∼HTA 064
B-270
●Thrust Bearings
Table 4 Tolerance of high speed / axial load duplex angular contact thrust ball bearings
Table 4.1 Inner rings
Units μm
Nominal bore Dimensional tolerance of mean Bore diameter variation
bore diameter within plane
Vdp
dia.
∆dmp
d
Diameter series 9 Diameter series 0
mm
Class 5
Class 4 1 Class 5 Class 4 Class 5 Class 4
over up to/incl. High Low High Low
Max
Max
18
30
50
80
120
150
180
250
315
30
50
80
120
150
180
250
315
400
ー6
ー8
ー9
ー10
ー13
ー13
ー15
ー18
ー23
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
ー5
ー6
ー7
ー8
ー10
ー10
ー12
ー14
ー16
6
8
9
10
13
13
15
18
23
5
6
7
8
10
10
12
14
17
5
6
7
8
10
10
12
14
18
4
5
5
6
8
8
9
11
12
Dimensional
tolerance of mean
inside diameter
within planee
Vdmp
Class 5 Class 4
Max
3
4
5
5
7
7
8
9
12
2.5
3
3.5
4
5
5
6
8
9
Side runout
with bore
Sd
Class 5 Class 4
Max
8
8
8
9
10
10
11
13
15
4
4
5
5
6
6
7
8
10
Axial runout
Tolerance of
combination
width
∆Bs
Sia
Class 5 Class 4 Class 5 Class 4
Max
High Low
5
5
6
6
8
8
8
10
13
3
3
5
5
6
6
6
8
10
0
0
0
0
0
0
0
0
0
ー240
ー240
ー300
ー400
ー500
ー500
ー600
ー700
ー800
Width
variation
VBs
Class 5 Class 4
Max
5
5
6
7
8
8
10
13
15
2.5
3
4
4
5
5
6
8
10
1 The allowable deviation of single bore diameter deviation ∆ds is identical to the allowable deviation of the single plane mean bore diameter deviation.
Table 4.2 Outer ring
Units μm
Dimensional tolerance of
Nominal
Axial
Width
runout
variation
outside dia. mean bore diameter ∆ Dmp
within plane and outer
Sea
Vcs
D
diameter tolerance ∆Ds
mm
Class 5
Class 4
Class 5 Class 4 Class 5 Class 4
over up to/incl.
High
Low
Max
Max
30
50
80
120
150
180
250
315
400
50
80
120
150
180
250
315
400
500
ー25
ー30
ー36
ー43
ー43
ー50
ー56
ー62
ー68
ー36
ー43
ー51
ー61
ー61
ー70
ー79
ー87
ー95
8
10
11
13
14
15
18
20
23
5
5
6
7
8
10
10
13
15
5
6
8
8
8
10
11
13
15
2.5
3
4
5
5
7
7
8
10
Note: 1. These standards are NTN standards.
2. Bearing which use these accuracies should be appended
with the accuracies code L.
(Example: HTA 020 DB / GNP 4L)
B-271
●Thrust Bearings
Table 4 Standard preload
Bore
dia. no
Units N｛kgf｝
5629
Normal preload Medium preload
GN
GM
05
5620
Normal preload Medium preload
GN
GM
294
｛30｝
685
｛70｝
490
｛50｝
785
｛80｝
HTA9DB
HTA0DB
Normal preload Medium preload Normal preload Medium preload
GN
GM
GN
GM
390
｛40｝
06
07
08
685
｛70｝
09
685
｛70｝
10
11
980
｛100｝
12
HTA0ADB
Normal preload Medium preload
GN
GM
147
｛15｝
294
｛30｝
294
｛30｝
590
｛60｝
490
｛50｝
885
｛90｝
590
｛60｝
1,470
｛150｝
885
｛90｝
1,960
｛200｝
980
｛100｝
2,450
｛250｝
1,470
｛150｝
3,450
｛350｝
2,450
｛250｝
4,900
｛500｝
3,450
｛350｝
6,850
｛700｝
3,900
｛400｝
7,850
｛800｝
5,900
｛600｝
11,800
｛1,200｝
1,270
｛130｝
1,670
｛170｝
13
14
15
1,470
｛150｝
16
17
980
｛100｝
2,450
｛250｝
1,570
｛160｝
1,960
｛200｝
18
19
20
21
1,470
｛150｝
2,450
｛250｝
980
｛100｝
1,960
｛200｝
26
28
30
1,960
｛200｝
3,250
｛330｝
1,270
｛130｝
2,450
｛250｝
1,960
｛200｝
3,450
｛350｝
3,450
｛350｝
5,900
｛600｝
2,940
｛300｝
32
34
36
38
2,450
｛250｝
3,900
｛400｝
2,450
｛250｝
3,900
｛400｝
2,450
｛250｝
1,960
｛200｝
3,450
｛350｝
2,940
｛300｝
5,400
｛550｝
3,900
｛400｝
7,350
｛750｝
4,900
｛500｝
9,300
｛950｝
6,850
｛700｝
12,700
｛1,300｝
1,670
｛170｝
22
24
1,470
｛150｝
40
3,900
｛400｝
44
48
2,940
｛300｝
4,400
｛450｝
2,940
｛300｝
4,400
｛450｝
3,900
｛400｝
4,900
｛500｝ 7,350
｛750｝
5,900
｛600｝
52
56
60
64
3,900
｛400｝
5,900
｛600｝
6,850
｛700｝
4,900
｛500｝
8,850
｛900｝
8,850
｛900｝
15,700
｛1,600｝
5,900
｛600｝
11,800
｛1,200｝
10,800
｛1,100｝
17,700
｛1,800｝
B-272
●Thrust Bearings
3. Spherical roller thrust bearings
4. Cylindrical roller thrust bearings
Just like spherical roller bearings, the center of the
spherical surface for spherical roller thrust bearings is the
point where the raceway surface of the housing raceway disc
meets the center axis of the bearing. Since spherical roller
thrust bearings incorporate barrel-shaped rollers as rolling
elements, they also have self-aligning properties. (See
Diagram 2)
Under normal load conditions, the allowable misalignment
is 1˚ to 2˚, although this will vary depending upon the
bearing's dimension series.
These bearings use machined copper alloy cages and a
guide sleeve is attached to the inner ring to guide the cage.
The axial load capacity of these bearings is high, and a
certain amount of radial load can also be accommodated
when the ring is in an axially loaded state. However, it is
necessary to operate these bearings where the load
condition meet Fr/Fa≦0.55.
These bearings have some spots where lubricant
cannot enter such as the gap between the cage and
guide sleeve. It is necessary to use oil lubrication even
in low speed operation.
Thrust bearings incorporating cylindrical rollers are
available in single row, double row, triple row, and four row
varieties. (See Diagram 3) NTN Engineering offers the 811,
812 and 893 series of standard series bearings that conform
to dimension series 11, 12 and 93 prescribed in JIS, as well
as other special dimensions.
Cylindrical roller thrust bearings are able to receive axial
loads only, and have high axial rigidity which makes them
well suited for heavy axial loads. Needle roller bearing
information for series 811, 812, and 893 is also listed in the
dimension tables.
Furthermore, bearings with dimensions not listed in the
dimension tables are also manufactured. Contact NTN
Engineering for more information.
Diagram 3. Double row cylindrical roller thrust bearings
5. Tapered roller thrust bearings
Although not listed in the dimension tables, tapered roller
bearings like those in Diagram 4 are also manufactured.
Contact NTN Engineering for more detailed information.
misalignment
angle
Diagram 2. Spherical roller thrust bearings
Diagram 4. Tapered roller thrust bearings
B-273
● Single Direction Thrust Ball Bearings
φda
φd1
φd
ra
r
Equivalent bearing load
dynamic
Pa＝Fa
T
ra
r
static
Poa＝Fa
φD1
φD
φDa
d 10 ∼ 50mm
Boundary dimensions
mm
Basic load ratings
dynamic static dynamic static
kN
kgf
rs min1）
Limiting speeds
Bearing
numbers
Dimensions
min-1
mm
d1s max2） D1s min3）
Abutment and
fillet dimensions
mm
Da
ras
da
Ca
Coa
Ca
Coa
grease
oil
0.3
0.6
10.0
12.7
14.0
17.1
1 020
1 290
1 420
1 740
6 700
5 800
9 500
8 300
51100
51200
24
26
11
12
18
20
9
11
0.3
0.6
10.3
13.2
15.4
19.0
1 050
1 340
1 570
1 940
6 400
5 600
9 200
8 000
51101
51201
26
28
13
14
28
32
9
12
0.3
0.6
10.5
16.6
16.8
24.8
1 070
1 690
1 710
2 530
6 200
5 000
8 800
7 100
51102
51202
28
32
17
30
35
9
12
0.3
0.6
10.8
17.2
18.2
27.3
1 100
1 750
1 850
2 780
6 000
4 800
8 500
6 800
51103
51203
20
35
40
10
14
0.3
0.6
14.2
22.3
24.7
37.5
1 450
2 270
2 520
3 850
5 200
4 100
7 500
5 900
25
42
47
52
60
11
15
18
24
0.6
0.6
1
1
19.6
27.8
35.5
55.5
37.0
50.5
61.5
89.5
1 990
2 830
3 650
5 650
3 800
5 150
6 250
9 100
4 600
3 700
3 200
2 600
30
47
52
60
70
11
16
21
28
0.6
0.6
1
1
20.4
42.0
29.3
58.0
43.0
78.5
72.5 126
2 080
2 990
4 350
7 400
4 300
5 950
8 000
12 800
35
52
62
68
80
12
18
24
32
0.6
1
1
1.1
20.4
44.5
39.0
78.0
55.5 105
87.0 155
2 080
4 000
5 650
8 850
40
60
68
78
90
13
19
26
36
0.6
1
1
1.1
45
65
73
85
100
14
20
28
39
0.6
1
1
1.1
50
70
78
14
22
0.6
1
d
D
T
10
24
26
9
11
12
26
28
15
(approx.)
16
16
0.3
0.6
0.021
0.03
20
22
18
18
0.3
0.6
0.023
0.034
16
17
23
25
20
22
0.3
0.6
0.024
0.046
30
35
18
19
25
28
22
24
0.3
0.6
0.026
0.054
51104
51204
35
40
21
22
29
32
26
28
0.3
0.6
0.04
0.081
6 500
5 300
4 600
3 700
51105
51205
51305
51405
42
47
52
60
26
27
27
27
35
38
41
46
32
34
36
39
0.6
0.6
1
1
0.06
0.111
0.176
0.33
4 300
3 400
2 800
2 200
6 200
4 900
3 900
3 200
51106
51206
51306
51406
47
52
60
70
32
32
32
32
40
43
48
54
37
39
42
46
0.6
0.6
1
1
0.069
0.139
0.269
0.516
4 550
7 950
10 700
15 800
3 900
2 900
2 400
1 900
5 600
4 200
3 500
2 800
51107
51207
51307
51407
52
62
68
80
37
37
37
37
45
51
55
62
42
46
48
53
0.6
1
1
1
0.085
0.215
0.383
0.759
26.9
63.0 2 740
47.0
98.5 4 800
69.0 135
7 050
112
205 11 500
6 400
10 000
13 700
20 900
3 500
2 700
2 200
1 700
5 000
3 900
3 100
2 500
51108
51208
51308
51408
60
68
78
90
42
42
42
42
52
57
63
70
48
51
55
60
0.6
1
1
1
0.125
0.276
0.548
1.08
27.9
69.0 2 840
48.0 105
4 850
80.0 163
8 150
130
242 13 200
7 050
10 700
16 700
24 700
3 200
2 600
2 000
1 600
4 600
3 700
2 900
2 200
51109
51209
51309
51409
65
73
85
100
47
47
47
47
57
62
69
78
53
56
61
67
0.6
1
1
1
0.148
0.317
0.684
1.43
7 700
11 400
3 100
2 400
4 500
3 400
51110
51210
70
78
52
52
62
67
58
61
0.6
1
0.161
0.378
2 930
4 950
1）Smallest allowable dimension for chamfer dimension r. 2）Maximum allowable dimension for shaft washer outer dimension d1.
3）Smallest allowable dimension for housing washer inner dimension D1.
B-274
max
kg
max
28.8
75.5
48.5 111
min
Mass
● Single Direction Thrust Ball Bearings
φda
φd1
φd
ra
r
Equivalent bearing load
dynamic
Pa＝Fa
T
ra
r
static
Poa＝Fa
φD1
φD
φDa
d 50 ∼ 90mm
Boundary dimensions
mm
Basic load ratings
dynamic static dynamic static
kN
kgf
d
D
T
rs min1）
50
95
110
31
43
1.1
1.5
96.5 202
148
283
55
78
90
105
120
16
25
35
48
60
85
95
110
130
Limiting speeds
Bearing
numbers
min-1
Dimensions
mm
d1s max2） D1s min3）
Abutment and
fillet dimensions
mm
Da
ras
da
Mass
kg
Coa
grease
oil
9 850
15 100
20 600
28 800
1 800
1 400
2 600
2 000
51310
51410A
95
110
52
52
77
86
68
74
1
1.5
0.951
1.9
0.6
1
1.1
1.5
35.0
93.0 3 550
69.5 159
7 100
119
246 12 200
178
360 18 200
9 500
16 200
25 100
36 500
2 800
2 100
1 600
1 300
4 000
3 000
2 300
1 800
51111
51211
51311
51411
78
90
105
120
57
57
57
57
69
76
85
94
64
69
75
81
0.6
1
1
1.5
0.226
0.608
1.29
2.52
17
26
35
51
1
1
1.1
1.5
41.5
73.5
123
214
113
179
267
435
4 200
7 500
12 600
21 800
11 500
18 200
27 200
44 500
2 600
2 000
1 600
1 200
3 700
2 800
2 300
1 700
51112
51212
51312
51412
85
95
110
130
62
62
62
62
75
81
90
102
70
74
80
88
1
1
1
1.5
0.296
0.676
1.37
3.12
65
90
100
115
140
18
27
36
56
1
1
1.1
2
41.5
75.0
128
232
117
189
287
495
4 250
7 650
13 000
23 600
12 000
19 200
29 300
50 500
2 400
1 900
1 500
1 100
3 500
2 700
2 200
1 600
51113
51213
51313
51413
90
100
115
140
67
67
67
68
80
86
95
110
75
79
85
95
1
1
1
2
0.338
0.767
1.51
3.96
70
95
105
125
150
18
27
40
60
1
1
1.1
2
43.0
76.0
148
250
127
199
340
555
4 400
7 750
15 100
25 500
12 900
20 200
34 500
56 500
2 400
1 800
1 400
1 000
3 400
2 600
2 000
1 500
51114
51214
51314
51414
95
105
125
150
72
72
72
73
85
91
103
118
80
84
92
102
1
1
1
2
0.356
0.793
2.01
4.86
75
100
110
135
160
19
27
44
65
1
1
1.5
2
44.5
77.5
171
269
136
209
395
615
4 550
7 900
17 400
27 400
13 900
21 300
40 500
63 000
2 200
1 800
1 300
940
3 200
2 600
1 800
1 400
51115
51215
51315
51415
100
110
135
160
77
77
77
78
90
96
111
125
85
89
99
110
1
1
1.5
2
0.399
0.874
2.61
5.97
80
105
115
140
170
19
28
44
68
1
1
1.5
2.1
44.5
78.5
176
270
141
218
425
620
4 550
8 000
18 000
27 500
14 400
22 300
43 000
63 500
2 200
1 700
1 200
890
3 100
2 400
1 800
1 300
51116
51216
51316
51416
105
115
140
170
82
82
82
83
95
101
116
133
90
94
104
117
1
1
1.5
2
0.422
0.916
2.72
7.77
85
110
125
150
180
19
31
49
72
1
1
1.5
2.1
46.0
95.5
201
288
150
264
490
685
4 700
9 700
20 500
29 400
15 300
26 900
50 000
70 000
2 100
1 600
1 100
840
3 000
51117
2 200
51217
1 600
51317
1 200 ＊ 51417
110
125
150
177
87
88
88
88
100
109
124
141
95
101
111
124
1
1
1.5
2
0.444
1.25
3.52
9.17
90
120
135
155
190
22
35
50
77
1
1.1
1.5
2.1
59.5
117
198
305
190
325
490
750
6 100
11 900
20 200
31 500
19 400
33 000
50 000
76 500
1 900
1 400
1 100
790
2 700
51118
2 000
51218
1 600
51318
1 100 ＊ 51418
120
135
155
187
92
93
93
93
108
117
129
149
102
108
116
131
1
0.687
1
1.7
1.5 3.74
2 11
Ca
Coa
Ca
min
max
max
(approx.)
1）Smallest allowable dimension for chamfer dimension r. 2）Maximum allowable dimension for shaft washer outer dimension d1. 3）Smallest allowable dimension for
housing washer inner dimension D1. Note: Bearing numbers marked " ＊ " signify bearings where the bearing shaft washer outer diameter is smaller than the housing shaft washer
outer diameter. Therefore when using these bearings, it is possible to use the housing bore as is, without providing a ground undercut on the outer diameter section of the bearing
shaft washer as shown in the drawing.
B-275
● Single Direction Thrust Ball Bearings
φda
φd1
φd
ra
r
Equivalent bearing load
dynamic
Pa＝Fa
T
ra
r
static
Poa＝Fa
φD1
φD
φDa
d 100 ∼ 200mm
Boundary dimensions
mm
Basic load ratings
dynamic static dynamic static
kN
kgf
rs min1）
Limiting speeds
Bearing
numbers
Dimensions
min-1
mm
grease
8 700
14 900
24 100
37 500
27 300
42 000
60 500
99 000
1 700
1 300
990
710
2 400
51120
1 800
51220
1 400
51320
1 000 ＊ 51420
135
150
170
205
87.0 288
153
450
267
705
8 900
15 600
27 300
29 400
46 000
72 000
1 600
1 200
870
2 300
51122
1 800
51222
1 200 ＊ 51322
1
1.1
2.1
89.0 310
154
470
296
805
9 100
15 700
30 000
31 500
48 000
82 500
1 500
1 200
780
30
45
75
1
1.5
2.1
104
191
330
10 600
19 400
33 500
36 000
57 500
97 500
180
200
240
31
46
80
1
1.5
2.1
107
375
193
595
350 1 050
150
190
215
250
31
50
80
1
1.5
2.1
160
200
225
270
31
51
87
170
215
240
280
180
225
250
300
D
T
Ca
Coa
100
135
150
170
210
25
38
55
85
1
1.1
1.5
3
85.0
147
237
370
268
410
595
970
110
145
160
190
25
38
63
1
1.1
2
120
155
170
210
25
39
70
130
170
190
225
140
Ca
oil
d1s max2） D1s min3）
Coa
d
Abutment and
fillet dimensions
mm
Da
ras
da
kg
min
max
102
103
103
103
121
130
142
165
114
120
128
145
1
0.987
1
2.29
1.5 4.88
2.5 14.7
145
160
187
112
113
113
131
140
158
124
130
142
1
1
2
1.07
2.46
7.67
2 200
51124
1 700
51224
1 100 ＊ 51324
155
170
205
122
123
123
141
150
173
134
140
157
1
1
2
1.11
2.71
10.8
1 300
1 000
720
1 900
51126
1 500 ＊ 51226
1 000 ＊ 51326
170
187
220
132
133
134
154
166
186
146
154
169
1
1.73
1.5 4.22
2 12.7
10 900 38 500
19 700 60 500
35 500 107 000
1 300
980
670
1 800 ＊ 51128
1 400 ＊ 51228
960 ＊ 51328
178
197
235
142
143
144
164
176
199
156
164
181
1
1.9
1.5 4.77
2 15.3
109
400
220
685
360 1 130
11 100 41 000
22 400 70 000
37 000 115 000
1 200
900
660
1 800 ＊ 51130
1 300 ＊ 51230
940 ＊ 51330
188
212
245
152
153
154
174
189
209
166
176
191
1
2
1.5 5.87
2 16.1
1
1.5
3
112
425
223
720
450 1 470
11 400 43 500
22 800 73 000
45 500 150 000
1 200
870
600
1 700 ＊ 51132
1 200 ＊ 51232
860 ＊ 51332
198
222
265
162
163
164
184
199
225
176
186
205
1
2.1
1.5 6.32
2.5 20.7
34
55
87
1.1
1.5
3
134
510
261
835
465 1 570
13 700 52 000
26 600 85 000
47 000 160 000
1 100
810
590
1 600 ＊ 51134
1 200 ＊ 51234
840 ＊ 51334
213
237
275
172
173
174
197
212
235
188
198
215
1
2.77
1.5 7.81
2.5 21.6
34
56
95
1.1
1.5
3
135
525
266
875
490 1 700
13 700 54 000
27 100 89 000
50 000 174 000
1 100
780
540
1 500 ＊ 51136
1 100 ＊ 51236
780 ＊ 51336
222
247
295
183
183
184
207
222
251
198
208
229
1
2.92
1.5 8.34
2.5 27.5
190
240 37
270 62
320 105
1.1
2
4
170
655
310 1 060
545 1 950
17 400 67 000
31 500 108 000
55 500 199 000
980
710
500
1 400 ＊ 51138
1 000 ＊ 51238
710 ＊ 51338
237
267
315
193
194
195
220
238
266
210
222
244
1
2
3
3.75
11.3
35
200
250
1.1
172
17 500
960
1 400 ＊ 51140
247
203
230
220
1
3.92
37
350
565
960
675
69 000
max
Mass
(approx.)
1）Smallest allowable dimension for chamfer dimension r. 2）Maximum allowable dimension for shaft washer outer dimension d1. 3）Smallest allowable dimension for
housing washer inner dimension D1. Note: Bearing numbers marked " ＊ " signify bearings where the bearing shaft washer outer diameter is smaller than the housing shaft washer
outer diameter. Therefore when using these bearings, it is possible to use the housing bore as is, without providing a ground undercut on the outer diameter section of the bearing
shaft washer as shown in the drawing.
B-276
● Single Direction Thrust Ball Bearings
φda
φd1
φd
ra
r
Equivalent bearing load
dynamic
Pa＝Fa
T
ra
r
static
Poa＝Fa
φD1
φD
φDa
d 200 ∼ 530mm
Boundary dimensions
mm
d
D
T
Basic load ratings
dynamic static dynamic static
kN
kgf
rs min1）
Ca
Coa
Ca
Coa
Limiting speeds
Bearing
numbers
min-1
grease
Dimensions
mm
d1s max2） D1s min3）
oil
Abutment and
fillet dimensions
mm
Da
ras
da
Mass
kg
min
max
max
(approx.)
200
280 62
340 110
2
4
315 1 110
595 2 220
32 000 113 000
61 000 227 000
700
470
990 ＊ 51240
670 ＊ 51340
277
335
204
205
248
282
232
258
2
3
11.8
41.8
220
270
300
37
63
1.1
2
177
740
325 1 210
18 100 75 500
33 000 123 000
920
660
1 300 ＊ 51144
950 ＊ 51244
267
297
223
224
250
268
240
252
1
2
4.27
13
240
300
340
45
78
1.5
2.1
228
935
415 1 650
23 200 95 000
42 500 168 000
780
550
1 100 ＊ 51148
790 ＊ 51248
297
335
243
244
276
299
264
281
1.5 6.87
2 22.4
260
320
360
45
79
1.5
2.1
232
990
440 1 810
23 600 101 000
45 000 184 000
750
530
1 100 ＊ 51152
760 ＊ 51252
317
355
263
264
296
319
284
301
1.5 7.38
2 24.2
280
350
380
53
80
1.5
2.1
305 1 270
460 1 970
31 000 130 000
47 000 201 000
650
510
940 ＊ 51156
730 ＊ 51256
347
375
283
284
322
339
308
321
1.5 11.8
2 26.1
300
380
420
62
95
2
3
355 1 560
590 2 680
36 000 159 000
60 000 273 000
580
440
820 ＊ 51160
630 ＊ 51260
376
415
304
304
348
371
332
349
2 17.2
2.5 40.6
320
400
63
2
365 1 660
37 000 169 000
550
790 ＊ 51164
396
324
368
352
2
18.4
340
420
64
2
375 1 760
38 000 179 000
530
760 ＊ 51168
416
344
388
372
2
19.7
360
440
65
2
380 1 860
39 000 190 000
510
730 ＊ 51172
436
364
408
392
2
21.1
380
460
65
2
380 1 910
39 000 195 000
500
710 ＊ 51176
456
384
428
412
2
22.3
400
480
65
2
390 2 010
40 000 205 000
480
690 ＊ 51180
476
404
448
432
2
23.3
420
500
65
2
395 2 110
40 500 215 000
470
670 ＊ 51184
495
424
468
452
2
24.4
440
540
80
2.1
515 2 850
52 500 291 000
400
580 ＊ 51188
535
444
499
481
2
40
460
560
80
2.1
525 3 000
53 500 305 000
390
560 ＊ 51192
555
464
519
501
2
41.6
480
580
80
2.1
525 3 100
54 000 315 000
380
550 ＊ 51196
575
484
539
521
2
43.3
500
600
80
2.1
575 3 400
58 500 345 000
370
540
511/500
595
504
559
541
2
45
530
640
85
3
645 4 000
66 000 405 000
350
500
511/530
635
534
595
575
2.5 55.8
1）Smallest allowable dimension for chamfer dimension r. 2）Maximum allowable dimension for shaft washer outer dimension d1. 3）Smallest allowable dimension for
housing washer inner dimension D1. Note: Bearing numbers marked " ＊ " signify bearings where the bearing shaft washer outer diameter is smaller than the housing shaft washer
outer diameter. Therefore when using these bearings, it is possible to use the housing bore as is, without providing a ground undercut on the outer diameter section of the bearing
shaft washer as shown in the drawing.
B-277
● Double Direction Angular Contact Thrust Ball Bearings
T1
C
r1
r
EW φD
J φd
d 25 ∼ 120mm
Boundary dimensions
dynamic
mm
d
small dia. large dia.
type
type
D
T1
C
rs min1） r1s min1）
Ca
Basic load ratings
static dynamic static
kN
kgf
Coa
Ca
Limiting speeds
Bearing numbers
min-1
Coa
grease
oil
small dia.
type
large dia.
type
25
27
47
28
14
0.6
0.3
13.2
28.3
1 350
2 890
7 600
10 000
562005
562005M
30
32
55
32
16
1
0.6
14.0
32.5
1 420
3 350
6 600
8 800
562006
562006M
35
37
62
34
17
1
0.6
19.7
48.5
2 010
4 950
6 000
8 100
562007
562007M
40
42
68
36
18
1
0.6
23.8
58.5
2 430
5 950
5 600
7 500
562008
562008M
45
47
75
38
19
1
0.6
26.0
69.0
2 650
7 000
5 200
6 900
562009
562009M
50
52
80
38
19
1
0.6
26.8
74.0
2 730
7 550
5 000
6 700
562010
562010M
55
57
90
44
22
1.1
0.6
37.0
99.0
3 800
10 100
4 400
5 900
562011
562011M
60
62
95
44
22
1.1
0.6
37.5
103
3 850
10 500
4 300
5 700
562012
562012M
65
67
100
44
22
1.1
0.6
39.0
111
3 950
11 300
4 200
5 600
562013
562013M
70
73
110
48
24
1.1
0.6
47.5
140
4 850
14 300
3 800
5 100
562014
562014M
75
78
115
48
24
1.1
0.6
49.0
150
5 000
15 300
3 700
4 900
562015
562015M
80
83
125
54
27
1.1
0.6
57.5
178
5 850
18 200
3 300
4 500
562016
562016M
85
88
130
54
27
1.1
0.6
58.0
184
5 950
18 800
3 300
4 400
562017
562017M
90
93
140
60
30
1.5
1
67.5
216
6 850
22 000
3 000
4 000
562018
562018M
95
98
145
60
30
1.5
1
68.0
223
6 950
22 700
2 900
3 900
562019
562019M
100
104
103
140
150
48
60
24
30
1.1
1.5
0.6
1
52.0
68.5
179
229
5 300
7 000
18 200
23 400
2 800
2 900
3 700
3 800
562920
562020
562920M
562020M
105
109
109
145
160
48
66
24
33
1.1
2
0.6
1
53.5
78.5
188
266
5 450
8 000
19 200
27 100
2 700
2 600
3 600
3 500
562921
562021
562921M
562021M
110
114
114
150
170
48
72
24
36
1.1
2
0.6
1
54.0
96.0
193
315
5 500
9 750
19 700
32 500
2 700
2 400
3 600
3 300
562922
562022
562922M
562022M
120
124
124
165
180
54
72
27
36
1.1
2
0.6
1
65.0
98.0
242
335
6 600
10 000
24 700
34 500
2 400
2 400
3 200
3 200
562924
562024
562924M
562024M
1）Minimum allowable dimension for chamfer dimension r or r1. 2）Ball's maximum circumscribed circle diameter dimension
Note: 1. For small diameter type, the cylindrical bore or tapered bore is provided on the small diameter of double row cylindrical roller bearing series
NNU49, NN49, and NN30; for large diameter type (marked with "M"), the tapered bore is provided on the large diameter side.
B-278
● Double Direction Angular Contact Thrust Ball Bearings
r1a
ra
Wo
φDa
φda
φdo
Equivalent bearing load
dynamic
Pa＝Fa
static
Poa＝Fa
Oil inlet, oil groove dimensions
Dimensions
Abutment and fillet dimensions
mm
J
Mass (approx.)
mm
EW2）
kg
da
Da
ras
r1as
min
max
max
max
small dia.
type
large dia.
type
40
41.3
33
44
0.6
0.3
0.197
0.177
47
48.5
40
50.5
1
0.6
0.301
0.28
53
55
45.5
57.5
1
0.6
0.394
0.35
58.5
61
50
63.5
1
0.6
0.482
0.44
65
67.5
56.5
70.5
1
0.6
0.605
0.54
70
72.5
61.5
75.5
1
0.6
0.638
0.59
78
81
67.5
84
1
0.6
0.988
0.9
83
86.1
72.5
89
1
0.6
1.06
0.96
88
91
77.5
94
1
0.6
1.08
1
97
100
85
104
1
0.6
1.53
1.4
102
105
90
109
1
0.6
1.61
1.5
110
113
96.5
119
1
0.6
2.2
2
115
118
102
124
1
0.6
2.31
2.1
123
127
109
133.5
1.5
1
3.05
2.7
128
132
114
138.5
1.5
1
3.18
2.9
126
133
129
137
114
119
134.5
143.5
1
1.5
0.6
1
2.04
3.32
1.8
3
131
142
134
146
119
127
139.5
152
1
2
0.6
1
2.12
4.19
1.87
3.7
136
150
139
155
124
133
144.5
162
1
2
0.6
1
2.21
5.35
1.95
4.9
150
160
154.5
165
138
143
159.5
172
1
2
0.6
1
3.06
5.73
2.75
5.2
Units mm
Nominal outer
Oil groove width Wo
Oil inlet do
diameter
D
Bearing series
Bearing series
5629
5620
5629
5620
―
―
8
4.5
6
8
―
―
4
2
3
4
over up to/incl.
―
50
80
50
80
150
Note: 2. The following bearing series can be assembled and used together: 5629 (M) and NNU49 (K) and NN49 (K); 5620 (M) and NN30 (K).
3. These are high precision bearings manufactured at NTN standard Class 5 or higher.
B-279
● Double Direction Angular Contact Thrust Ball Bearings
T1
C
r1
r
EW φD
J φd
d 130 ∼ 320mm
Boundary dimensions
dynamic
mm
d
small dia. large dia.
type
type
D
T1
C
rs min1） r1s min1）
Ca
Basic load ratings
static dynamic static
kN
kgf
Coa
Ca
Coa
Limiting speeds
Bearing numbers
min-1
grease
oil
small dia.
type
large dia.
type
130
134
135
180
200
60
84
30
42
1.5
2
1
1
75.0
139
284
460
7 650
14 200
28 900
47 000
2 200
2 100
2 900
2 800
562926
562026
562926M
562026M
140
144
145
190
210
60
84
30
42
1.5
2
1
1
76.0
144
297
495
7 750
14 600
30 500
50 500
2 100
2 000
2 800
2 700
562928
562028
562928M
562028M
150
155
155
210
225
72
90
36
45
2
2.1
1
1.1
107
147
410
525
10 900
15 000
41 500
53 500
1 800
1 900
2 400
2 500
562930
562030
562930M
562030M
160
165
165
220
240
72
96
36
48
2
2.1
1
1.1
109
172
430
620
11 100
17 600
44 000
63 000
1 800
1 700
2 300
2 300
562932
562032
562932M
562032M
170
175
176
230
260
72
108
36
54
2
2.1
1
1.1
111
202
450
735
11 300
20 600
46 000
75 000
1 700
1 600
2 300
2 100
562934
562034
562934M
562034M
180
186
187
250
280
84
120
42
60
2
2.1
1
1.1
156
234
605
865
15 900
23 900
62 000
88 000
1 500
1 400
2 000
1 900
562936
562036
562936M
562036M
190
196
197
260
290
84
120
42
60
2
2.1
1
1.1
157
236
625
890
16 000
24 100
63 500
91 000
1 500
1 400
2 000
1 900
562938
562038
562938M
562038M
200
207
207
280
310
96
132
48
66
2.1
2.1
1.1
1.1
185
271
735
1 030
18 800 75 000
27 700 105 000
1 300
1 300
1 800
1 700
562940
562040
562940M
562040M
220
227
228
300
340
96
144
48
72
2.1
3
1.1
1.1
190
335
795
1 270
19 400 81 000
34 000 129 000
1 300
1 200
1 700
1 500
562944
562044
562944M
562044M
240
247
248
320
360
96
144
48
72
2.1
3
1.1
1.1
196
340
850
1 350
20 000 87 000
35 000 137 000
1 200
1 100
1 600
1 500
562948
562048
562948M
562048M
260
269
269
360
400
120
164
60
82
2.1
4
1.1
1.5
261
405
1 130
1 710
26 600 116 000
41 500 174 000
1 000
980
1 400
1 300
562952
562052
562952M
562052M
280
289
289
380
420
120
164
60
82
2.1
4
1.1
1.5
265
415
1 190
1 810
27 000 121 000
42 500 185 000
980
950
1 300
1 300
562956
562056
562956M
562056M
300
310
310
420
460
144
190
72
95
3
4
1.1
1.5
335
475
1 510
2 170
34 500 154 000
48 500 221 000
840
830
1 100
1 100
562960
562060
562960M
562060M
320
330
330
440
480
144
190
72
95
3
4
1.1
1.5
340
480
1 580
2 230
35 000 161 000
49 000 228 000
820
810
1 100
1 100
562964
562064
562964M
562064M
1）Minimum allowable dimension for chamfer dimension r or r1. 2）Ball's maximum circumscribed circle diameter dimension
Note: 1. For small diameter type, the cylindrical bore or tapered bore is provided on the small diameter of double row cylindrical roller bearing series
NNU49, NN49, and NN30; for large diameter type (marked with "M"), the tapered bore is provided on the large diameter side.
B-280
● Double Direction Angular Contact Thrust Ball Bearings
r1a
ra
Wo
φDa
φda
φdo
Equivalent bearing load
dynamic
Pa＝Fa
static
Poa＝Fa
Oil inlet, oil groove dimensions
Dimensions
Abutment and fillet dimensions
mm
J
Mass (approx.)
mm
EW2）
kg
da
Da
ras
r1as
min
max
max
max
small dia.
type
large dia.
type
163
177
168
182
150
155
173.5
192
1.5
2
1
1
4.11
8.58
3.7
7.6
173
187
178
192
160
165
183.5
202
1.5
2
1
1
4.38
9.1
3.94
8.1
190
200
196.5
206
174
178
202
215
2
2
1
1
6.88
11.2
6.2
10
200
212
206.5
219
184
189
212
230
2
2
1
1
7.26
13.6
6.53
11.9
210
230
216.5
236
194
203
222
250
2
2
1
1
7.64
18.5
6.88
16.5
227
248
234
255
207
219
242
270
2
2
1
1
11.2
24.7
10
21.8
237
258
244
265
217
229
252
280
2
2
1
1
11.7
25.5
10.5
23
252
274
261
282
231
243
270
300
2
2
1
1
16.3
32.7
14.7
29.7
272
304
281
310
251
267
290
330
2
2.5
1
1
17.7
42.8
16
38.5
292
322
301
330
271
287
310
350
2
2.5
1
1
19
45.8
17
41.2
328
354
336
364
299
315
350
388
2
3
1
1.5
32.9
67
29.6
60.3
348
374
356
384
319
335
370
408
2
3
1
1.5
35
71.1
31.5
64
384
406
391
418
349
364
410
448
2.5
3
1
1.5
55
102
49.5
91.8
404
426
411
438
369
384
430
468
2.5
3
1
1.5
58.1
108
52.3
97.2
Units mm
Nominal outer
Oil groove width Wo
Oil inlet do
diameter
D
Bearing series
Bearing series
5629
5620
5629
5620
8
8
12
12
14
16
22
8
12
12
14
16
23
22
4
4
6
6
6
8
12
4
6
6
6
8
12
12
over up to/incl.
80
150
200
210
260
320
400
150
200
210
260
320
400
480
Note: 2. The following bearing series can be assembled and used together: 5629 (M) and NNU49 (K) and NN49 (K); 5620 (M) and NN30 (K).
3. These are high precision bearings manufactured at NTN standard Class 5 or higher.
B-281
● High Speed Duplex Angular Contact Thrust Ball Bearings
r1
2B
r1
r
r
φd
φD
2a
d 25 ∼ 120mm
Boundary dimensions
Basic load ratings
static
dynamic
dynamic
mm
kN
D
2B
rs min1） r1s min1）
25
47
21
0.6
0.3
16.2
30
55
24
1
0.6
35
62
25.5
1
40
68
27
45
75
50
Limiting speeds
static
Bearing
numbers
min-1
kgf
Ca
Coa
grease
oil
22.1
1 650
2 260
16 000
21 000
HTA005DB
17.5
26.7
1 780
2 720
14 000
18 000
HTA006DB
0.6
25.2
38.0
2 570
3 900
12 000
16 000
HTA007DB
1
0.6
27.2
45.0
2 780
4 550
11 000
14 000
HTA008DB
28.5
1
0.6
27.9
48.5
2 840
4 950
9 700
13 000
HTA009DB
80
28.5
1
0.6
29.6
55.5
3 000
5 650
8 800
12 000
HTA010DB
55
90
33
1.1
0.6
32.0
64.0
3 250
6 500
8 000
11 000
HTA011DB
60
95
33
1.1
0.6
33.5
69.5
3 400
7 100
7 400
9 800
HTA012DB
65
100
33
1.1
0.6
34.0
72.0
3 450
7 350
6 900
9 200
HTA013DB
70
110
36
1.1
0.6
41.5
91.0
4 250
9 300
6 400
8 500
HTA014DB
75
115
36
1.1
0.6
44.0
101
4 500
10 300
5 900
7 900
HTA015DB
80
125
40.5
1.1
0.6
50.5
117
5 150
11 900
5 600
7 400
HTA016DB
85
130
40.5
1.1
0.6
51.0
120
5 200
12 300
5 200
7 000
HTA017DB
90
140
45
1.5
1
59.5
141
6 050
14 400
5 000
6 600
HTA018DB
95
145
45
1.5
1
60.0
146
6 100
14 900
4 700
6 300
HTA019DB
100
140
150
36
45
1.1
1.5
0.6
1
47.0
62.0
121
156
4 800
6 350
12 300
15 900
4 800
4 500
6 300
5 900
HTA920DB
HTA020DB
105
145
160
36
49.5
1.1
2
0.6
1
48.5
71.0
128
181
4 950
7 250
13 000
18 400
4 500
4 200
6 000
5 600
HTA921DB
HTA021DB
110
150
170
36
54
1.1
2
0.6
1
49.0
88.5
131
222
5 000
9 000
13 400
22 700
4 300
4 000
5 800
5 400
HTA922DB
HTA022DB
120
165
180
40.5
54
1.1
2
0.6
1
57.0
89.0
156
228
5 800
9 050
15 900
23 300
4 000
3 700
5 300
4 900
HTA924DB
HTA024DB
d
Ca
Coa
1）Minimum allowable dimension for chamfer dimension r or r1.
Note: 1. This bearing can be used in place of high speed double direction angular contact thrust ball bearings. 2. These are high precision bearings
manufactured at NTN standard Class 5 or higher.
B-282
● High Speed Duplex Angular Contact Thrust Ball Bearings
r1a
ra
φDa
φda
Abutment and fillet dimensions
mm
Load
center
mm
Mass
kg
da
Da
ras
r1as
min
max
max
max
2a
(approx.)
31
43.5
0.6
0.3
40.5
0.138
37.5
49
1
0.5
47.5
0.22
42.5
56
1
0.5
53.5
0.274
47.5
62
1
0.5
59
0.342
52.5
69
1
0.5
64.5
0.438
57.5
74
1
0.5
69
0.476
65
84
1
0.6
77.5
0.754
70
89
1
0.6
81.5
0.808
75
94
1
0.6
85.5
0.858
80
104
1
0.6
93.5
1.19
85
109
1
0.6
97.5
1.26
90
119
1
0.6
106
1.73
95
124
1
0.6
110
1.82
102
132.5
1.5
0.8
119
2.4
107
137.5
1.5
0.8
123
2.52
110
112
134
142.5
1
1.5
0.6
0.8
119
127
1.6
2.62
115
119
139
152.5
1
2
0.6
1
123
136
1.66
3.38
120
124
144
162.5
1
2
0.6
1
127
144
1.72
4.22
130
134
159
172.5
1
2
0.6
1
140
153
2.4
4.5
B-283
● High Speed Duplex Angular Contact Thrust Ball Bearings
r1
2B
r1
r
r
φd
φD
2a
d 130 ∼ 320mm
Boundary dimensions
Basic load ratings
static
dynamic
dynamic
mm
kN
rs min1） r1s min1）
D
2B
130
180
200
45
63
1.5
2
140
190
210
45
63
150
210
225
160
d
Limiting speeds
static
min-1
kgf
Ca
Bearing
numbers
Coa
grease
oil
Ca
Coa
1
1
68.0
128
193
325
6 950
13 000
19 600
33 000
3 600
3 400
4 800
4 500
HTA926DB
HTA026DB
1.5
2
1
1
68.0
132
197
345
6 950
13 500
20 100
35 500
3 300
3 100
4 500
4 200
HTA928DB
HTA028DB
54
67.5
2
2.1
1
1.1
95.5
136
270
370
9 750
13 800
27 600
37 500
3 100
2 900
4 200
3 900
HTA930DB
HTA030DB
220
240
54
72
2
2.1
1
1.1
97.5
159
284
435
9 950
16 200
29 000
44 000
2 900
2 700
3 900
3 600
HTA932DB
HTA032DB
170
230
260
54
81
2
2.1
1
1.1
99.5
182
298
500
10 100
18 600
30 500
51 000
2 700
2 500
3 600
3 400
HTA934DB
HTA034DB
180
250
280
63
90
2
2.1
1
1.1
150
211
445
585
15 300
21 500
45 500
60 000
2 600
2 400
3 400
3 200
HTA936DB
HTA036DB
190
260
290
63
90
2
2.1
1
1.1
153
214
470
605
15 600
21 800
48 000
61 500
2 400
2 200
3 200
3 000
HTA938DB
HTA038DB
200
280
310
72
99
2.1
2.1
1.1
1.1
180
240
555
680
18 400
24 400
56 500
69 000
2 300
2 100
3 000
2 800
HTA940DB
HTA040DB
220
300
340
72
108
2.1
3
1.1
1.1
185
300
595
860
18 900
30 500
60 500
87 500
2 100
1 900
2 700
2 600
HTA944DB
HTA044DB
240
320
360
72
108
2.1
3
1.1
1.1
190
310
635
915
19 400
31 500
64 500
93 000
1 900
1 700
2 500
2 300
HTA948DB
HTA048DB
260
360
400
90
123
2.1
4
1.1
1.5
250
365
830
1 160
25 400
37 500
84 500
118 000
1 700
1 600
2 300
2 100
HTA952DB
HTA052DB
280
380
420
90
123
2.1
4
1.1
1.5
257
375
885
1 230
26 200
38 500
90 500
125 000
1 600
1 500
2 100
2 000
HTA956DB
HTA056DB
300
420
460
108
142.5
3
4
1.1
1.5
325
430
1 130
1 470
33 500
44 000
115 000
150 000
1 400
1 400
1 900
1 800
HTA960DB
HTA060DB
320
440
480
108
142.5
3
4
1.1
1.5
330
435
1 180
1 520
34 000
44 000
120 000
155 000
1 300
1 300
1 800
1 700
HTA964DB
HTA064DB
1）Minimum allowable dimension for chamfer dimension r or r1.
Note: 1. This bearing can be used in place of high speed double direction angular contact thrust ball bearings. 2. These are high precision bearings
manufactured at NTN standard Class 5 or higher.
B-284
● High Speed Duplex Angular Contact Thrust Ball Bearings
r1a
ra
φDa
φda
Abutment and fillet dimensions
mm
da
Da
ras
r1as
min
max
max
max
Load
center
mm
Mass
2a
(approx.)
kg
142
144
172.5
192.5
1.5
2
0.8
1
153
170
3.26
6.66
152
154
182.5
202.5
1.5
2
1
1
161
178
3.46
7.08
164
167
202.5
215
2
2
1
1
178
191
5.4
8.82
174
177
212.5
230
2
2
1
1
186
204
5.7
10.6
184
187
222.5
250
2
2
1
1
195
221
6
14.5
194
197
242.5
270
2
2
1
1
212
238
9.38
20.6
204
207
252.5
280
2
2
1
1
220
246
9.82
21.4
217
217
270
300
2
2
1
1
237
263
13.7
27.4
237
240
290
330
2
2.5
1
1
254
289
14.8
35.8
257
260
310
350
2
2.5
1
1
271
306
16
38.2
277
283
350
388
2
3
1
1.5
305
338
27.8
56.2
297
303
370
408
2
3
1
1.5
322
355
28
59.6
320
323
410
448
2.5
3
1
1.5
356
390
46.6
85.6
340
343
430
468
2.5
3
1
1.5
373
407
49
90
B-285
● Spherical Roller Thrust Bearings
φd1
φd
A
B1
r
T
C
r
φD1
φD
d 60 ∼ 160mm
Boundary dimensions
mm
Basic load ratings
dynamic
static
dynamic
kN
kgf
static
Limiting
speeds
min-1
d
D
T
rs min1）
60
130
42
1.5
283
805
28 900
82 000
2 600
65
140
45
2
330
945
33 500
96 500
70
150
48
2
365
1 040
37 000
75
160
51
2
415
1 190
80
170
54
2.1
460
85
150
180
39
58
1.5
2.1
90
155
190
39
60
100
170
210
110
Ca
Coa
Ca
Coa
Bearing
numbers
Dimensions
mm
oil
D1
d1
B1
C
A
29412
89
123
15
20
38
2 400
29413
96
133
16
21
42
106 000
2 200
29414
103
142
17
23
44
42 500
122 000
2 100
29415
109
152
18
24
47
1 380
47 000
141 000
1 900
29416
117
162
19
26
50
265
490
820
1 480
27 000
50 000
84 000
151 000
2 300
1 800
29317
29417
114
125
143.5 13
170
21
19
28
50
54
1.5
2.1
285
545
915
1 680
29 100
56 000
93 500
172 000
2 300
1 700
29318
29418
117
132
148.5 13
180
22
19
29
52
56
42
67
1.5
3
345
685
1 160
2 130
35 500
69 500
118 000
217 000
2 100
1 500
29320
29420
129
146
163
200
14
24
20.8
32
58
62
190
230
48
73
2
3
445
845
1 500
2 620
45 000
86 500
152 000
267 000
1 800
1 400
29322
29422
143
162
182
220
16
26
23
35
64
69
120
210
250
54
78
2.1
4
535
975
1 770
3 050
54 500
99 000
181 000
310 000
1 600
1 300
29324
29424
159
174
200
236
18
29
26
37
70
74
130
225
270
58
85
2.1
4
615
1 080
2 100
3 550
62 500
110 000
215 000
360 000
1 500
1 200
29326
29426
171
189
215
255
19
31
28
41
76
81
140
240
280
60
85
2.1
4
685
1 110
2 360
3 750
70 000
114 000
241 000
385 000
1 400
1 200
29328
29428
183
199
230
268
20
31
29
41
82
86
150
215
250
300
39
60
90
1.5
2.1
4
340
675
1 280
1 340
2 390
4 350
34 500
68 500
131 000
136 000
243 000
445 000
1 800
1 400
1 100
29230
29330
29430
178
194
214
208
240
285
14
20
32
19
29
44
82
87
92
160
225
270
320
39
67
95
1.5
3
5
360
820
1 500
1 460
2 860
5 150
36 500
84 000
153 000
149 000
292 000
525 000
1 700
1 300
1 000
29232
29332
29432
188
208
229
219
260
306
14
24
34
19
32
45
86
92
99
1）Smallest allowable dimension for chamfer dimension r.
B-286
● Spherical Roller Thrust Bearings
φda
Equivalent bearing load
dynamic
Pa＝Fa＋1.2Fr
static
Poa＝Fa＋2.7Fr
Fr
when ≦0.55
Fa
ra
ra
φDa
Abutment and
fillet dimensions
mm
da
Da
ras
Mass
min
max
max
(approx.)
90
108
1.5
2.78
100
115
2
3.44
105
125
2
4.19
115
132
2
5.07
120
140
2
6.09
115
130
135
150
1.5
2
2.94
7.2
120
135
140
157
1.5
2
3.08
8.38
130
150
150
175
1.5
2.5
3.94
11.5
145
165
165
190
2
2.5
5.78
15
160
180
180
205
2
3
7.92
18.6
170
195
195
225
2
3
9.76
23.7
185
205
205
235
2
3
11.4
25.2
179
195
220
196
215
250
1.5
2
3
4.56
12
30.5
189
210
230
206
235
265
1.5
2.5
4
4.88
15.9
37
kg
B-287
● Spherical Roller Thrust Bearings
φd1
φd
A
B1
r
T
C
r
φD1
φD
d 170 ∼ 320mm
Boundary dimensions
mm
rs min1）
Basic load ratings
dynamic
static
dynamic
kN
kgf
static
Limiting
speeds
min-1
Coa
Ca
Coa
oil
425
855
1 660
1 770
3 050
5 750
43 500
87 000
169 000
180 000
310 000
590 000
1 600
1 200
940
1.5
3
5
450
995
1 840
1 920
3 600
6 200
45 500
102 000
188 000
196 000
365 000
635 000
48
78
115
2
4
5
530
1 150
2 010
2 230
4 250
6 800
54 000
117 000
205 000
280
340
400
48
85
122
2
4
5
535
1 280
2 230
2 300
4 600
7 650
220
300
360
420
48
85
122
2
4
6
555
1 390
2 300
240
340
380
440
60
85
122
2.1
4
6
260
360
420
480
60
95
132
280
380
440
520
d
D
T
170
240
280
340
42
67
103
1.5
3
5
180
250
300
360
42
73
109
190
270
320
380
200
Ca
Bearing
numbers
Dimensions
mm
D1
d1
B1
C
29234
29334
29434
198
216
243
233
270
324
15
23
37
20
32
50
92
96
104
1 600
1 100
890
29236
29336
29436
208
232
255
243
290
342
15
25
39
20
35
52
97
103
110
227 000
430 000
695 000
1 400
1 100
840
29238
29338
29438
223
246
271
262
308
360
15
27
41
24
38
55
104
110
117
54 500
131 000
228 000
234 000
470 000
780 000
1 400
980
790
29240
29340
29440
236
261
286
271
325
380
15
29
43
24
41
59
108
116
122
2 480
5 200
8 100
56 500
141 000
235 000
253 000
530 000
825 000
1 300
940
760
29244
29344
29444
254
280
308
292
345
400
15
29
43
24
41
58
117
125
132
825
1 380
2 400
3 600
5 250
8 700
84 000
140 000
245 000
365 000
535 000
885 000
1 100
910
740
29248
29348
29448
283
300
326
330
365
420
19
29
43
30
41
59
130
135
142
2.1
5
6
870
1 710
2 740
3 950
6 800
10 000
88 500
400 000
175 000
695 000
279 000 1 020 000
1 100
810
670
29252
29352
29452
302
329
357
350
405
460
19
32
48
30
45
64
139
148
154
60
95
145
2.1
5
6
875
1 800
3 350
4 050
7 250
12 400
89 000
415 000
184 000
740 000
340 000 1 270 000
1 000
790
610
29256
29356
29456
323
348
387
370
423
495
19
32
52
30
46
68
150
158
166
300
420
480
540
73
109
145
3
5
6
1 190
2 140
3 450
5 350
8 250
13 200
121 000
545 000
218 000
840 000
350 000 1 340 000
870
700
590
29260
29360
29460
353
379
402
405
460
515
21
37
52
38
50
70
162
168
175
320
440
500
580
73
109
155
3
5
7.5
1 260
2 220
3 700
5 800
8 800
14 200
128 000
595 000
226 000
895 000
375 000 1 440 000
840
680
550
29264
29364
29464
372
399
435
430
482
555
21
37
55
38
53
75
172
180
191
1）Smallest allowable dimension for chamfer dimension r.
B-288
A
● Spherical Roller Thrust Bearings
φda
Equivalent bearing load
dynamic
Pa＝Fa＋1.2Fr
static
Poa＝Fa＋2.7Fr
Fr
when ≦0.55
Fa
ra
ra
φDa
Abutment and
fillet dimensions
mm
da
Da
ras
Mass
min
max
max
(approx.)
201
220
245
218
245
285
1.5
2.5
4
6.02
16.6
45
211
235
260
228
260
300
1.5
2.5
4
6.27
21.2
52.9
225
250
275
245
275
320
2
3
4
8.8
26
62
235
265
290
255
295
335
2
3
4
9.14
31.9
73.3
260
285
310
275
315
355
2
3
5
9.94
34.5
77.8
285
300
330
305
330
375
2
3
5
17.5
36.6
82.6
305
330
360
325
365
405
2
4
5
18.6
52
108
325
350
390
345
390
440
2
4
5
19.8
54.6
140
355
380
410
380
420
460
2.5
4
5
30.9
75.8
147
375
400
435
400
440
495
2.5
4
6
33.5
79.9
181
kg
B-289
● Spherical Roller Thrust Bearings
φd1
φd
A
B1
r
T
C
r
φD1
φD
d 340 ∼ 500mm
Boundary dimensions
mm
rs min1）
Basic load ratings
dynamic
static
dynamic
kN
kgf
Ca
Coa
Ca
static
Coa
Limiting
speeds
min-1
Bearing
numbers
mm
oil
d
D
T
340
460
540
620
73
122
170
3
5
7.5
1 240
2 650
4 400
5 800
10 700
17 500
126 000
590 000
270 000 1 090 000
445 000 1 790 000
820
610
500
360
500
560
640
85
122
170
4
5
7.5
1 510
2 710
4 500
7 050
11 100
18 500
154 000
720 000
276 000 1 130 000
460 000 1 890 000
380
520
600
670
85
132
175
4
6
7.5
1 590
3 200
4 900
7 650
13 300
19 700
400
540
620
710
85
132
185
4
6
7.5
1 620
3 400
5 450
420
580
650
730
95
140
185
5
6
7.5
440
600
680
780
95
145
206
460
620
710
800
480
500
Dimensions
D1
d1
B1
C
29268
29368
29468
395
428
462
445
520
590
21
41
61
37
59
82
183
192
201
720
590
490
29272
29372
29472
423
448
480
485
540
610
25
41
61
44
59
82
194
202
210
162 000
780 000
325 000 1 360 000
500 000 2 010 000
700
550
470
29276
29376
29476
441
477
504
505
580
640
27
44
63
42
63
85
202
216
230
7 950
14 500
22 100
165 000
810 000
345 000 1 480 000
555 000 2 250 000
680
530
440
29280
29380
29480
460
494
534
526
596
680
27
44
67
42
64
89
212
225
236
2 100
3 600
5 500
10 400
15 500
22 800
214 000 1 060 000
365 000 1 580 000
560 000 2 330 000
620
500
430
29284
29384
29484
489
520
556
564
626
700
30
48
67
46
68
89
225
235
244
5
6
9.5
2 150
3 800
6 400
10 900
16 400
26 200
219 000 1 110 000
385 000 1 680 000
650 000 2 670 000
600
480
390
29288
29388
29488
508
548
588
585
655
745
30
49
74
49
70
100
235
245
260
95
150
206
5
6
9.5
2 150
4 200
6 600
11 000
18 500
27 900
219 000 1 120 000
430 000 1 880 000
670 000 2 840 000
590
460
380
29292
29392
29492
530
567
608
605
685
765
30
51
74
46
72
100
245
257
272
650
730
850
103
150
224
5
6
9.5
2 400
4 200
7 500
12 000
18 700
31 500
245 000 1 220 000
430 000 1 910 000
765 000 3 200 000
550
450
350
29296
29396
29496
556
590
638
635
705
810
33
51
81
55
72
108
259
270
280
670
750
870
103
150
224
5
6
9.5
2 540
4 300
7 850
13 000
19 300
33 000
259 000 1 330 000
435 000 1 970 000
805 000 3 350 000
530
440
340
292/500
293/500
294/500
574
611
661
654
725
830
33
51
81
55
74
107
268
280
290
1）Smallest allowable dimension for chamfer dimension r.
B-290
A
● Spherical Roller Thrust Bearings
φda
Equivalent bearing load
dynamic
Pa＝Fa＋1.2Fr
static
Poa＝Fa＋2.7Fr
Fr
when ≦0.55
Fa
ra
ra
φDa
Abutment and
fillet dimensions
mm
da
Da
ras
Mass
min
max
max
(approx.)
395
430
465
420
470
530
2.5
4
6
34.4
107
230
420
450
485
455
495
550
3
4
6
50.5
112
240
440
480
510
475
525
575
3
5
6
53.4
143
267
460
500
540
490
550
610
3
5
6
55.8
148
321
490
525
560
525
575
630
4
5
6
76.6
172
333
510
550
595
545
600
670
4
5
8
79.6
195
428
530
575
615
570
630
690
4
5
8
82.8
221
443
555
595
645
595
650
730
4
5
8
98.6
228
552
575
615
670
615
670
750
4
5
8
102
235
569
kg
B-291
Locknuts, Lockwashers & Lockplates
Contents
Locknuts …………………………………… C- 2
Nuts ………………………………………… C- 8
Lockwashers ………………………………… C-12
Lockplates …………………………………… C-15
Snap rings for rolling bearings …………… C-16
Locknuts, Lockwashers
& Lockplates
● Locknuts
(For adapter sleeve, withdrawal sleeve and shaft)
Series AN
g
B
b
30˚
G
h
r1
φ
d2
φd6 φd1
Bearing
numbers
Dimensions
thread
Mass
mm
kg
Reference
bore no.2） lock-3）
of adapter washer No.
r1
AN00
AN01
AN02
AN03
AN04
AN05
AN06
AN07
AN08
AN09
AN10
AN11
AN12
AN13
AN14
AN15
AN16
AN17
AN18
AN19
AN20
AN21
AN22
AN23
AN24
AN25
AN26
AN27
AN28
AN29
AN30
AN31
AN32
AN33
AN34
AN36
AN38
AN40
G1）
d2
d1
M10 × 0.75
M12 × 1
M15 × 1
M17 × 1
M20 × 1
M25 × 1.5
M30 × 1.5
M35 × 1.5
M40 × 1.5
M45 × 1.5
M50 × 1.5
M55 × 2
M60 × 2
M65 × 2
M70 × 2
M75 × 2
M80 × 2
M85 × 2
M90 × 2
M95 × 2
M100 × 2
M105 × 2
M110 × 2
M115 × 2
M120 × 2
M125 × 2
M130 × 2
M135 × 2
M140 × 2
M145 × 2
M150 × 2
M155 × 3
M160 × 3
M165 × 3
M170 × 3
M180 × 3
M190 × 3
M200 × 3
18
22
25
28
32
38
45
52
58
65
70
75
80
85
92
98
105
110
120
125
130
140
145
150
155
160
165
175
180
190
195
200
210
210
220
230
240
250
13.5
17
21
24
26
32
38
44
50
56
61
67
73
79
85
90
95
102
108
113
120
126
133
137
138
148
149
160
160
171
171
182
182
193
193
203
214
226
g
14
18
21
24
28
34
41
48
53
60
65
69
74
79
85
91
98
103
112
117
122
130
135
140
145
150
155
163
168
178
183
186
196
196
206
214
224
234
b
h
d6
B
max
(approx.)
3
3
4
4
4
5
5
5
6
6
6
7
7
7
8
8
8
8
10
10
10
12
12
12
12
12
12
14
14
14
14
16
16
16
16
18
18
18
2
2
2
2
2
2
2
2
2.5
2.5
2.5
3
3
3
3.5
3.5
3.5
3.5
4
4
4
5
5
5
5
5
5
6
6
6
6
7
7
7
7
8
8
8
10.5
12.5
15.5
17.5
20.5
25.8
30.8
35.8
40.8
45.8
50.8
56
61
66
71
76
81
86
91
96
101
106
111
116
121
126
131
136
141
146
151
156.5
161.5
166.5
171.5
181.5
191.5
201.5
4
4
5
5
6
7
7
8
9
10
11
11
11
12
12
13
15
16
16
17
18
18
19
19
20
21
21
22
22
24
24
25
25
26
26
27
28
29
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.6
0.6
0.6
0.6
0.6
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.005
0.007
0.01
0.013
0.019
0.025
0.043
0.053
0.085
0.119
0.148
0.158
0.174
0.203
0.242
0.287
0.397
0.451
0.556
0.658
0.698
0.845
0.965
1.01
1.08
1.19
1.25
1.55
1.56
2
2.03
2.21
2.59
2.43
2.8
3.07
3.39
3.69
1）Standard thread shapes and dimensions are as per JIS B0207 (metric thread).
2）Uses adapter series H31, H2, and H23
3）Can also use washers with straight inner tabs (code "X").
C-2
−
−
−
−
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
−
24
−
26
−
28
−
30
−
32
−
34
36
38
40
AW00
AW01
AW02
AW03
AW04
AW05
AW06
AW07
AW08
AW09
AW10
AW11
AW12
AW13
AW14
AW15
AW16
AW17
AW18
AW19
AW20
AW21
AW22
AW23
AW24
AW25
AW26
AW27
AW28
AW29
AW30
AW31
AW32
AW33
AW34
AW36
AW38
AW40
● Locknuts
Reference
withdrawal sleeve No.
Shaft
mm
AH30
AH240
AH31
AH241
AH2
AH32
AH3
AH23
(for shaft)
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
AHX3024
−
AHX3026
−
AHX3028
−
AHX3030
−
AH 3032
AH 3034
AH 3036
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
AH24024
−
AH24026
−
AH24028
−
AH24030
−
−
AH24032
AH24034
AH24036
AH24038
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
AHX3122
−
AHX3124
−
AHX3126
−
AHX3128
−
−
AHX3130
−
AH 3132
AH 3134
AH 3136
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
AH24122
−
−
AH24124
−
AH24126
−
AH24128
−
AH24130
−
AH24132
AH24134
AH24136
AH24138
−
−
−
−
−
−
−
−
−
AH208
AH209
AH210
AH211
AH212
−
AH213
AH214
AH215
AH216
AH217
AH218
AH219
AH220
AH221
AH222
−
AH224
−
AH226
−
AH228
−
AH230
−
AH232
AH234
AH236
−
C-3
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
AHX3218
−
AHX3220
−
−
AHX3222
−
AHX3224
−
AHX3226
−
AHX3228
−
AHX3230
−
AH 3232
AH 3234
AH 3236
−
−
−
−
−
−
−
−
−
AH 308
AH 309
AHX310
AHX311
AHX312
−
AH 313
AH 314
AH 315
AH 316
AHX317
AHX318
AHX319
AHX320
AHX321
AHX322
−
AHX324
−
AHX326
−
AHX328
−
−
AHX330
−
AH 332
AH 334
−
−
−
−
−
−
−
−
−
−
AH 2308
AH 2309
AHX2310
AHX2311
AHX2312
−
AH 2313
AHX2314
AHX2315
AHX2316
AHX2317
AHX2318
AHX2319
AHX2320
−
−
AHX2322
−
AHX2324
−
AHX2326
−
AHX2328
−
AHX2330
−
AH 2332
AH 2334
AH 2336
10
12
15
17
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
105
110
115
120
125
130
135
140
145
150
155
160
165
170
180
190
200
● Locknuts
(For adapter sleeve, withdrawal sleeve and shaft)
Series AN
B
g
r
b
30˚ G
h
r1
s
φdP
φd6 φd1
2
φd
Bearing
numbers
Dimensions
thread
Mass
mm
thread
kg
r1
G1）
AN 44
AN 48
AN 52
AN 56
AN 60
AN 64
AN 68
AN 72
AN 76
AN 80
AN 84
AN 88
AN 92
AN 96
AN100
Tr220 × 4
Tr240 × 4
Tr260 × 4
Tr280 × 4
Tr300 × 4
Tr320 × 5
Tr340 × 5
Tr360 × 5
Tr380 × 5
Tr400 × 5
Tr420 × 5
Tr440 × 5
Tr460 × 5
Tr480 × 5
Tr500 × 5
d2
d1
g
b
h
d6
B
max
l
s2）
dP
(approx.)
280
300
330
350
380
400
440
460
490
520
540
560
580
620
630
250
270
300
320
340
360
400
420
450
470
490
510
540
560
580
260
280
306
326
356
376
410
430
454
484
504
520
540
580
584
20
20
24
24
24
24
28
28
32
32
32
36
36
36
40
10
10
12
12
12
12
15
15
18
18
18
20
20
20
23
222
242
262
282
302
322.5
342.5
362.5
382.5
402.5
422.5
442.5
462.5
482.5
502.5
32
34
36
38
40
42
55
58
60
62
70
70
75
75
80
0.8
0.8
0.8
0.8
0.8
0.8
1
1
1
1
1
1
1
1
1
15
15
18
18
18
18
21
21
21
27
27
27
27
27
27
M 8 × 1.25
M 8 × 1.25
M10 × 1.5
M10 × 1.5
M10 × 1.5
M10 × 1.5
M12 × 1.75
M12 × 1.75
M12 × 1.75
M16 × 2
M16 × 2
M16 × 2
M16 × 2
M16 × 2
M16 × 2
238
258
281
301
326
345
372
392
414
439
459
477
497
527
539
5.2
5.95
8.05
9.05
11.8
13.1
23.1
25.1
30.9
36.9
43.5
45.3
50.4
62.2
63.3
1）Standard thread shapes and dimensions are as per JIS B0216 (metric trapezoidal screw thread).
2）Thread dimensions are as per JIS B0205 (metric coarse screw thread).
3）Applied to adapter series H31, H32, and H23
C-4
● Locknuts
Reference
bore no.3）
lockof adapter
plate No.
Shaft
mm
(for shaft)
44
48
52
56
60
64
68
72
76
80
84
88
92
96
/500
AL 44
AL 44
AL 52
AL 52
AL 60
AL 64
AL 68
AL 68
AL 76
AL 80
AL 80
AL 88
AL 88
AL 96
AL100
220
240
260
280
300
320
340
360
380
400
420
440
460
480
500
C-5
● Locknuts
(For adapter sleeve and shaft)
Series ANL
g
B
b
30˚
G
h
r1
φ
d2
φd6 φd1
Bearing
numbers
Dimensions
Mass
mm
kg
thread
Reference
bore no.2）
lock-3）
of adapter washer no.
shaft
mm
r1
ANL24
ANL26
ANL28
ANL30
ANL32
ANL34
ANL36
ANL38
ANL40
G1）
d2
d1
g
b
h
M120 × 2
M130 × 2
M140 × 2
M150 × 2
M160 × 3
M170 × 3
M180 × 3
M190 × 3
M200 × 3
145
155
165
180
190
200
210
220
240
133
143
151
164
174
184
192
202
218
135
145
153
168
176
186
194
204
224
12
12
14
14
16
16
18
18
18
5
5
6
6
7
7
8
8
8
d6
121
131
141
151
161.5
171.5
181.5
191.5
201.5
1）Standard thread shapes and dimensions are as per JIS B0207 (metric fine thread).
2）Applied to adapter series H30.
3）Applicable also to washers with straight inner tabs (code "X").
C-6
B
max
(approx.)
20
21
22
24
25
26
27
28
29
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.78
0.88
0.99
1.38
1.56
1.72
1.95
2.08
2.98
(for shaft)
24
26
28
30
32
34
36
38
40
AWL24
AWL26
AWL28
AWL30
AWL32
AWL34
AWL36
AWL38
AWL40
120
130
140
150
160
170
180
190
200
● Locknuts
B
g
r
b
30˚ G
h
r1
s
φdP
φd6 φd1
2
φd
Bearing
numbers
Dimensions
thread
Mass
mm
thread
kg
r1
G1）
ANL 44
ANL 48
ANL 52
ANL 56
ANL 60
ANL 64
ANL 68
ANL 72
ANL 76
ANL 80
ANL 84
ANL 88
ANL 92
ANL 96
ANL100
Tr220 × 4
Tr240 × 4
Tr260 × 4
Tr280 × 4
Tr300 × 4
Tr320 × 5
Tr340 × 5
Tr360 × 5
Tr380 × 5
Tr400 × 5
Tr420 × 5
Tr440 × 5
Tr460 × 5
Tr480 × 5
Tr500 × 5
d2
d1
260
290
310
330
360
380
400
420
450
470
490
520
540
560
580
242
270
290
310
336
356
376
394
422
442
462
490
510
530
550
g
242
270
290
310
336
356
376
394
422
442
462
490
510
530
550
b
h
d6
B
max
l
s2）
dp
(approx.)
20
20
20
24
24
24
24
28
28
28
32
32
32
36
36
9
10
10
10
12
12
12
13
14
14
14
15
15
15
15
222
242
262
282
302
322.5
342.5
362.5
382.5
402.5
422.5
442.5
462.5
482.5
502.5
30
34
34
38
42
42
45
45
48
52
52
60
60
60
68
0.8
0.8
0.8
0.8
0.8
0.8
1
1
1
1
1
1
1
1
1
12
15
15
15
15
15
15
15
18
18
18
21
21
21
21
M 6×1
M 8 × 1.25
M 8 × 1.25
M 8 × 1.25
M 8 × 1.25
M 8 × 1.25
M 8 × 1.25
M 8 × 1.25
M10 × 1.5
M10 × 1.5
M10 × 1.5
M12 × 1.75
M12 × 1.75
M12 × 1.75
M12 × 1.75
229
253
273
293
316
335
355
374
398
418
438
462
482
502
522
3.09
5.16
5.67
6.78
9.62
9.94
11.7
12
14.9
16.9
17.4
26.2
29.6
28.3
33.6
1）Standard thread shapes and dimensions are as per JIS B0216 (metric trapezoidal screw thread).
2）Thread dimensions are as per JIS B0205 (metric coarse screw thread).
3）Applied to adapter series H30.
bore no.3）
of adapter
Reference
lockplate no.
shaft
Bearing
numbers
mm
(for shaft)
44
48
52
56
60
64
68
72
76
80
84
88
92
96
/500
C-7
ALL44
ALL48
ALL48
ALL56
ALL60
ALL64
ALL64
ALL72
ALL76
ALL76
ALL84
ALL88
ALL88
ALL96
ALL96
220
240
260
280
300
320
340
360
380
400
420
440
460
480
500
ANL 44
ANL 48
ANL 52
ANL 56
ANL 60
ANL 64
ANL 68
ANL 72
ANL 76
ANL 80
ANL 84
ANL 88
ANL 92
ANL 96
ANL100
● Nuts
(For withdrawal and shaft)
Series HN
g
B
b
30˚
G
h
r1
φ
d2
φd6 φd1
Bearing
numbers
Dimensions
thread
Mass
mm
kg
AH240
r1
G1）
HN 42
HN 44
HN 46
HN 48
HN 50
HN 52
HN 54
HN 56
HN 58
HN 60
HN 62
HN 64
HN 66
HN 68
HN 70
HN 72
HN 74
HN 76
HN 80
HN 84
HN 88
HN 92
HN 96
HN100
HN102
HN106
HN110
Tr210 × 4
Tr220 × 4
Tr230 × 4
Tr240 × 4
Tr250 × 4
Tr260 × 4
Tr270 × 4
Tr280 × 4
Tr290 × 4
Tr300 × 4
Tr310 × 5
Tr320 × 5
Tr330 × 5
Tr340 × 5
Tr350 × 5
Tr360 × 5
Tr370 × 5
Tr380 × 5
Tr400 × 5
Tr420 × 5
Tr440 × 5
Tr460 × 5
Tr480 × 5
Tr500 × 5
Tr510 × 6
Tr530 × 6
Tr550 × 6
Reference
d2
d1
g
b
h
d6
B
max
(approx.)
270
280
290
300
320
330
340
350
370
380
390
400
420
440
450
460
470
490
520
540
560
580
620
630
650
670
700
238
250
260
270
290
300
310
320
330
340
350
360
380
400
410
420
430
450
470
490
510
540
560
590
590
610
640
250
260
270
280
300
306
316
326
346
356
366
376
390
410
420
430
440
454
484
504
520
540
580
590
604
624
654
20
20
20
20
20
24
24
24
24
24
24
24
28
28
28
28
28
32
32
32
36
36
36
40
40
40
40
10
10
10
10
10
12
12
12
12
12
12
12
15
15
15
15
15
18
18
18
20
20
20
23
23
23
23
212
222
232
242
252
262
272
282
292
302
312.5
322.5
332.5
342.5
352.5
362.5
372.5
382.5
402.5
422.5
442.5
462.5
482.5
502.5
513
533
553
30
32
34
34
36
36
38
38
40
40
42
42
52
55
55
58
58
60
62
70
70
75
75
80
80
80
80
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
4.75
5.35
5.8
6.2
7
8.55
9.2
10
11.8
12
13.4
13.5
20.4
24.5
25.2
27.5
28.2
33.5
40
46.9
48.5
55
67
69
75
78
92.5
1）Standard thread shapes and dimensions are as per JIS B0216 (metric trapezoidal screw thread).
C-8
withdrawal sleeve no.
AH31
AH241
AH24040
−
AH24044H
−
AH24048H
−
AH24052H
−
AH24056H
−
AH24060H
−
AH24064H
−
−
−
−
−
−
−
−
−
−
−
−
−
−
AH 3138
AH24140
AH 3140
−
−
AH24144H
AH 3144
−
−
−
AH 3148
AH24148H
−
−
−
AH24152H
AH 3152
−
−
AH24156H
AH 3156
−
−
AH24160H
AH 3160
−
−
AH24164H
AH 3164
−
−
AH24168H
AH 3168
−
−
AH24172H
AH 3172
AH24176H
AH 3176
AH24180H
AH 3180
AH24184H
AH 3184
AH24188H
AHX3188
AH24192H
−
AH24196H
AHX3192
−
AHX3196 AH241/500H
AHX31/500
−
● Nuts
Reference
AH22
withdrawal sleeve no.
AH32
AH23
AH2238
AH2240
−
AH2244
−
AH2248
−
−
AH2252
−
AH2256
−
AH2260
−
AH2264
−
−
−
−
−
−
−
−
−
−
−
−
AH 3238
AH 3240
−
−
−
−
−
−
−
−
−
−
AH 3260
−
AH 3264
−
AH 3268
−
AH 3272
AH 3276
AH 3280
AH 3284
AHX3288
−
AHX3292
AHX3296
AHX32/500
AH2338
AH2340
−
AH2344
−
AH2348
−
−
AH2352
−
AH2356
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
C-9
● Nuts
(For withdrawal and shaft)
Series HNL
g
B
b
30˚
G
h
r1
φ
d2
φd6 φd1
Bearing
numbers
Dimensions
thread
Mass
mm
kg
AH30
r1
G1）
HNL 41
HNL 43
HNL 47
HNL 52
HNL 56
HNL 60
HNL 64
HNL 69
HNL 72
HNL 73
HNL 76
HNL 77
HNL 80
HNL 82
HNL 84
HNL 86
HNL 88
HNL 90
HNL 92
HNL 94
HNL 96
HNL 98
HNL100
HNL104
HNL106
HNL108
Tr205 × 4
Tr215 × 4
Tr235 × 4
Tr260 × 4
Tr280 × 4
Tr300 × 4
Tr320 × 5
Tr345 × 5
Tr360 × 5
Tr365 × 5
Tr380 × 5
Tr385 × 5
Tr400 × 5
Tr410 × 5
Tr420 × 5
Tr430 × 5
Tr440 × 5
Tr450 × 5
Tr460 × 5
Tr470 × 5
Tr480 × 5
Tr490 × 5
Tr500 × 5
Tr520 × 6
Tr530 × 6
Tr540 × 6
Reference
d2
d1
g
b
h
250
260
280
310
330
360
380
410
420
430
450
450
470
480
490
500
520
520
540
540
560
580
580
600
630
630
232
242
262
290
310
336
356
384
394
404
422
422
442
452
462
472
490
490
510
510
530
550
550
570
590
590
234
242
262
290
310
336
356
384
394
404
422
422
442
452
462
472
490
490
510
510
530
550
550
570
590
590
18
20
20
20
24
24
24
28
28
28
28
28
28
32
32
32
32
32
32
32
36
36
36
36
40
40
8
9
9
10
10
12
12
13
13
13
14
14
14
14
14
14
15
15
15
15
15
15
15
15
20
20
d6
207
217
237
262
282
302
322.5
347.5
362.5
367.5
382.5
387.5
402.5
412.5
422.5
432.5
442.5
452.5
462.5
472.5
482.5
492.5
502.5
523
533
543
B
max
(approx.)
30
30
34
34
38
42
42
45
45
48
48
48
52
52
52
52
60
60
60
60
60
60
68
68
68
68
0.8
0.8
0.8
0.8
0.8
0.8
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
3.43
3.72
4.6
5.8
6.72
9.6
10.3
11.5
12.1
14.2
16
15
18.5
19
19.4
19.8
27
23.8
28
25
29.5
34
35
37
47
43.5
1）Standard thread shapes and dimensions are as per JIS B0216 (metric trapezoidal screw thread).
C-10
withdrawal sleeve no.
AH24D
AH 3038
−
AH 3040
−
AH 3044
−
AH 3048
−
AH 3052
−
AH 3056
−
AH 3060
−
AH 3064
−
−
AH24068H
AH 3068
−
−
AH24072H
AH 3072
−
−
AH24076H
AH 3076
−
−
AH24080H
AH 3080
−
−
AH24084H
AH 3084
−
−
AH24088H
AHX3088
−
−
AH24092H
AHX3092
−
−
AH24096H
AHX3096
−
−
AH240/500H
AHX30/500
−
AH2
AH238
AH240
AH244
AH248
AH252
AH256
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
● Lockwashers
Series AW
25˚
ƒ
r2
B2
B1
φd5
ƒ1
φd4
M
3
φd
Bent inner
tab type
Bearing numbers
Straight inner
tab type
Dimensions
No.of tabs
mm
bent inner straight inner
tab type
tab type
AW00
AW01
AW02
AW03
AW04
AW05
AW06
AW07
AW08
AW09
AW10
AW11
AW12
AW13
AW14
AW15
AW16
AW17
AW18
AW19
AW20
AW21
AW22
AW23
AW24
AW25
AW26
AW27
AW28
AW29
AW30
AW31
AW32
AW33
AW34
AW36
AW38
AW40
AW00X
AW01X
AW02X
AW03X
AW04X
AW05X
AW06X
AW07X
AW08X
AW09X
AW10X
AW11X
AW12X
AW13X
AW14X
AW15X
AW16X
AW17X
AW18X
AW19X
AW20X
AW21X
AW22X
AW23X
AW24X
AW25X
AW26X
AW27X
AW28X
AW29X
AW30X
AW31X
AW32X
AW33X
AW34X
AW36X
AW38X
AW40X
d3
M
f1
B1
f
d4
d5
10
12
15
17
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
105
110
115
120
125
130
135
140
145
150
155
160
165
170
180
190
200
8.5
10.5
13.5
15.5
18.5
23
27.5
32.5
37.5
42.5
47.5
52.5
57.5
62.5
66.5
71.5
76.5
81.5
86.5
91.5
96.5
100.5
105.5
110.5
115
120
125
130
135
140
145
147.5
154
157.5
164
174
184
194
3
3
4
4
4
5
5
6
6
6
6
8
8
8
8
8
10
10
10
10
12
12
12
12
14
14
14
14
16
16
16
16
18
18
18
20
20
20
1
1
1
1
1
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.5
1.5
1.5
1.5
1.8
1.8
1.8
1.8
1.8
1.8
1.8
2
2
2
2
2
2
2
2
2.5
2.5
2.5
2.5
2.5
2.5
2.5
3
3
4
4
4
5
5
5
6
6
6
7
7
7
8
8
8
8
10
10
10
12
12
12
12
12
12
14
14
14
14
16
16
16
16
18
18
18
13.5
17
21
24
26
32
38
44
50
56
61
67
73
79
85
90
95
102
108
113
120
126
133
137
138
148
149
160
160
171
171
182
182
193
193
203
214
226
21
25
28
32
36
42
49
57
62
69
74
81
86
92
98
104
112
119
126
133
142
145
154
159
164
170
175
185
192
202
205
212
217
222
232
242
252
262
1）Uses adapter series H31, H2, H32, H3, and H23.
C-12
kg
100 pieces
bent inner tab type
r2
B2
0.5
0.5
1
1
1
1
1
1
1
1
1
1
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
2
2
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
4
4
4
4
4
4
4
4
4
6
6
6
6
6
6
6
6
8
8
8
8
8
8
8
8
8
8
Mass
(approx.)
9
11
13
13
13
13
13
15
15
17
17
17
17
19
19
19
19
19
19
19
19
19
19
19
19
19
19
19
19
19
19
19
19
19
19
19
19
19
0.131
0.192
0.253
0.313
0.35
0.64
0.78
1.04
1.23
1.52
1.6
1.96
2.53
2.9
3.34
3.56
4.64
5.24
6.23
6.7
7.65
8.26
9.4
10.8
10.5
11.8
11.3
14.4
14.2
16.8
15.5
20.9
22.2
24.1
24.7
26.8
27.8
29.3
● Lockwashers
Allowable washer dimensions
bore no.1）
of adapter
Reference
locknut no.
shaft
mm
(for shaft)
−
−
−
−
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
−
24
−
26
−
28
−
30
−
32
−
34
36
38
40
AN00
AN01
AN02
AN03
AN04
AN05
AN06
AN07
AN08
AN09
AN10
AN11
AN12
AN13
AN14
AN15
AN16
AN17
AN18
AN19
AN20
AN21
AN22
AN23
AN24
AN25
AN26
AN27
AN28
AN29
AN30
AN31
AN32
AN33
AN34
AN36
AN38
AN40
10
12
15
17
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
105
110
115
120
125
130
135
140
145
150
155
160
165
170
180
190
200
Units mm
Nominal bore dia. Dimensional tolerance Dimension tolerance
for distance from inner for width of inner tab
∆ f1
d3
tab to bore surface
mm
∆M
High
Low
Over up to/incl
High
Low
6
50
80
120
50
80
120
200
＋0.3
＋0.3
＋0.5
＋0.5
0
0
0
0
＋0.2
＋0.5
＋0.7
＋1
−0.2
−0.5
−0.7
−1
Above table is applicable to AWL series.
Note: Narrow slit type adapter sleeves appended with the H2, H3,and H23 series code suffix "X", use straight inner tab washers (marked with "X");
wide slit type adapter sleeves without the suffix "X" can either straight or bent inner tab washers.
C-13
● Lockwashers
Series AWL
25˚
ƒ
r2
B2
B1
φd5
ƒ1
φd4
M
3
φd
Bent inner
tab type
Bearing numbers
Dimensions
mm
bent inner straight inner
tab type
tab type
AWL24
AWL26
AWL28
AWL30
AWL32
AWL34
AWL36
AWL38
AWL40
AWL24X
AWL26X
AWL28X
AWL30X
AWL32X
AWL34X
AWL36X
AWL38X
AWL40X
d3
M
f1
B1
f
d4
d5
120
130
140
150
160
170
180
190
200
115
125
135
145
154
164
174
184
194
14
14
16
16
18
18
20
20
20
2
2
2
2
2.5
2.5
2.5
2.5
2.5
12
12
14
14
16
16
18
18
18
133
143
151
164
174
184
192
202
218
155
165
175
190
200
210
220
230
250
NO.of tabs Mass
Reference
kg
bore no.1)
locknut shaft
bent inner tab type
of adapter
no.
100 pieces
mm
r2
B2
(approx.)
(for shaft)
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
6
6
8
8
8
8
8
8
8
19
19
19
19
19
19
19
19
19
1）Uses adapter series H31, H32, and H23.
Note: Wide slit type adapter sleeves without the suffix "X" can use either straight or bent inner tab washers.
C-14
Straight inner
tab type
7.7
8.7
10.9
11.3
16.2
19
18
20.5
21.4
24
26
28
30
32
34
36
38
40
ANL24
ANL26
ANL28
ANL30
ANL32
ANL34
ANL36
ANL38
ANL40
120
130
140
150
160
170
180
190
200
● Lockplates
Series AL, ALL
L2
B4
L3 L1
φd7
B3
B3
Bearing
numbers
AL 44
AL 52
AL 60
AL 64
AL 68
AL 76
AL 80
AL 88
AL 96
AL100
Dimensions
mm
Mass
kg
100 pieces
Reference
locknut no.
B3
B4
L2
d7
L1
L3
(approx.)
4
4
4
5
5
5
5
5
5
5
20
24
24
24
28
32
32
36
36
40
12
12
12
15
15
15
15
15
15
15
9
12
12
12
14
14
18
18
18
18
22.5
25.5
30.5
31
38
40
45
43
53
45
30.5
33.5
38.5
41
48
50
55
53
63
55
2.6
3.39
3.79
5.35
6.65
7.96
8.2
9
10.4
10.5
AN44,AN48
AN52,AN56
AN60
AN64
AN68,AN72
AN76
AN80,AN84
AN88,AN92
AN96
AN100
Mass
kg
100 pieces
Reference
Note: Series AL uses series H31,H32,and H23 adapters.
Bearing
numbers
ALL44
ALL48
ALL56
ALL60
ALL64
ALL72
ALL76
ALL84
ALL88
ALL96
Dimensions
mm
B3
B4
L2
d7
L1
L3
4
4
4
4
5
5
5
5
5
5
20
20
24
24
24
28
28
32
32
36
12
12
12
12
15
15
15
15
15
15
7
9
9
9
9
9
12
12
14
14
13.5
17.5
17.5
20.5
21
20
24
24
28
28
21.5
25.5
25.5
28.5
31
30
34
34
38
38
Note: Series ALL uses series H30 adapters.
C-15
locknut no.
(approx.)
2.12
2.29
2.92
3.16
4.56
5.03
5.28
6.11
6.45
7.29
ANL44
ANL48,ANL52
ANL56
ANL60
ANL64,ANL68
ANL72
ANL76,ANL80
ANL84
ANL88,ANL92
ANL96,ANL100
● Snap rings and grooves for rolling bearings
Snap rings
for dimension series 18 and 19 bearings
go
Ri
Ri
g
D3
φ
A
f
Ro
Ro
e
A (enlarged view)
Dimension unit: mm
Bearing No.
Dimensional
tolerance of bore
Reference
snap ring fitted
inside groove
tolerance of ∆D3
snap ring
outer diameter
D3
e
Upper
NR1022
NR1024
NR1028
NR1030
NR1032
NR1034
NR1037
NR1039
NR1040
NR1042
NR1044
NR1045
NR1047
NR1052
NR1055
NR1058
NR1062
NR1065
NR1068
NR1072
NR1078
NR1080
NR1085
NR1090
NR1095
NR1100
NR1105
NR1110
NR1115
NR1120
NR1125
NR1130
NR1140
NR1145
NR1150
NR1165
NR1175
NR1180
NR1190
NR1200
20.5
22.5
26.4
28.3
30.3
32.3
35.3
37.3
38.3
40.3
42.3
43.3
45.3
50.3
53.3
56.3
60.2
63.2
66.2
70.2
75.7
77.4
82.4
87.4
92.4
97.4
101.9
106.9
111.9
116.9
121.8
126.8
136.8
141.8
146.8
161
171
176
186
196
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Lower
− 0.3
− 0.3
− 0.3
− 0.3
− 0.3
− 0.3
− 0.3
− 0.3
− 0.3
− 0.4
− 0.4
− 0.4
− 0.4
− 0.4
− 0.4
− 0.6
− 0.6
− 0.6
− 0.6
− 0.6
− 0.6
− 0.6
− 0.6
− 0.6
− 0.6
− 0.6
− 0.8
− 0.8
− 0.8
− 0.8
− 0.8
− 0.8
− 1.0
− 1.0
− 1.2
− 1.2
− 1.2
− 1.2
− 1.4
− 1.4
f
g
max
min
max
min
2.00
2.00
2.05
2.05
2.05
2.05
2.05
2.05
2.05
2.05
2.05
2.05
2.05
2.05
2.05
2.05
2.05
2.05
2.05
2.05
3.25
3.25
3.25
3.25
3.25
3.25
4.04
4.04
4.04
4.04
4.04
4.04
4.04
4.04
4.04
4.85
4.85
4.85
4.85
4.85
1.85
1.85
1.90
1.90
1.90
1.90
1.90
1.90
1.90
1.90
1.90
1.90
1.90
1.90
1.90
1.90
1.90
1.90
1.90
1.90
3.10
3.10
3.10
3.10
3.10
3.10
3.89
3.89
3.89
3.89
3.89
3.89
3.89
3.89
3.89
4.70
4.70
4.70
4.70
4.70
0.7
0.7
0.85
0.85
0.85
0.85
0.85
0.85
0.85
0.85
0.85
0.85
0.85
0.85
0.85
0.85
0.85
0.85
0.85
0.85
1.12
1.12
1.12
1.12
1.12
1.12
1.12
1.12
1.12
1.12
1.12
1.12
1.7
1.7
1.7
1.7
1.7
1.7
1.7
1.7
0.6
0.6
0.75
0.75
0.75
0.75
0.75
0.75
0.75
0.75
0.75
0.75
0.75
0.75
0.75
0.75
0.75
0.75
0.75
0.75
1.02
1.02
1.02
1.02
1.02
1.02
1.02
1.02
1.02
1.02
1.02
1.02
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
D2
nominal
bearing
outer
diameter
D
max
2
2
3
3
3
3
3
3
3
3
4
4
4
4
4
4
4
4
5
5
5
5
5
5
5
5
5
5
5
7
7
7
7
7
7
7
10
10
10
10
C-16
24.8
26.8
30.8
32.8
34.8
36.8
39.8
41.8
42.8
44.8
46.8
47.8
49.8
54.8
57.8
60.8
64.8
67.8
70.8
74.8
82.7
84.4
89.4
94.4
99.4
104.4
110.7
115.7
120.7
125.7
130.7
135.7
145.7
150.7
155.7
171.5
181.5
186.5
196.5
206.5
22
24
28
30
32
34
37
39
40
42
44
45
47
52
55
58
62
65
68
72
78
80
85
90
95
100
105
110
115
120
125
130
140
145
150
165
175
180
190
200
Ri
Ro
thickness
variation
Vf
min
min
max
0.2
0.2
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.1
0.1
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
applicable bearing
dimension series
18
19
go
1
1
2
2
2
2
2
2
2
2
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
3
3
3
3
3
3
3
3
3
3
3
4
4
4
4
4
4
4
6
6
6
6
nominal bearing
outer diameter d
−
−
−
−
20
22
25
−
28
30
32
−
35
40
−
45
−
50
−
55
60
−
65
70
75
80
−
85
90
95
100
105
110
−
120
130
140
−
150
160
10
12
15
17
−
−
20
22
−
25
−
28
30
32
35
−
40
−
45
50
−
55
60
65
−
70
75
80
−
85
90
95
100
105
110
120
−
130
140
−
● Snap rings and grooves for rolling bearings
Groove
A
b
a
φD φd
φD1 φD2
ro
A (enlarged view)
f
Dimension unit: mm
Nominal Groove diameter
bearing
outer
diameter
D
D1
max
22
24
28
30
32
34
37
39
40
42
44
45
47
52
55
58
62
65
68
72
78
80
85
90
95
100
105
110
115
120
125
130
140
145
150
165
175
180
190
200
20.8
22.8
26.7
28.7
30.7
32.7
35.7
37.7
38.7
40.7
42.7
43.7
45.7
50.7
53.7
56.7
60.7
63.7
66.7
70.7
76.2
77.9
82.9
87.9
92.9
97.9
102.6
107.6
112.6
117.6
122.6
127.6
137.6
142.6
147.6
161.8
171.8
176.8
186.8
196.8
min
20.5
22.5
26.4
28.4
30.4
32.4
35.4
37.4
38.4
40.4
42.4
43.4
45.4
50.4
53.4
56.4
60.3
63.3
66.3
70.3
75.8
77.5
82.5
87.5
92.5
97.5
102.1
107.1
112.1
117.1
122.1
127.1
137.1
142.1
147.1
161.3
181.3
176.3
186.3
196.5
Dimension series
18
Groove width
Knuckle
radius
19
Groove position
a
b
ro
max
min
max
min
max
min
max
−
−
−
−
1.30
1.30
1.30
−
1.30
1.30
1.30
−
1.30
1.30
−
1.30
−
1.30
−
1.70
1.70
−
1.70
1.70
1.70
1.70
−
2.1
2.1
2.1
2.1
2.1
2.5
−
2.5
3.3
3.3
−
3.3
3.3
−
−
−
−
1.15
1.15
1.15
−
1.15
1.15
1.15
−
1.15
1.15
−
1.15
−
1.15
−
1.55
1.55
−
1.55
1.55
1.55
1.55
−
1.9
1.9
1.9
1.9
1.9
2.3
−
2.3
3.1
3.1
−
3.1
3.1
1.05
1.05
1.30
1.30
−
−
1.70
1.70
−
1.70
−
1.70
1.70
1.70
1.70
−
1.70
−
1.70
1.70
−
2.1
2.1
2.1
−
2.5
2.5
2.5
−
3.3
3.3
3.3
3.3
3.3
3.3
3.7
−
3.7
3.7
−
0.90
0.90
1.15
1.15
−
−
1.55
1.55
−
1.55
−
1.55
1.55
1.55
1.55
−
1.55
−
1.55
1.55
−
1.9
1.9
1.9
−
2.3
2.3
2.3
−
3.1
3.1
3.1
3.1
3.1
3.1
3.5
−
3.5
3.5
−
1.05
1.05
1.20
1.20
1.20
1.20
1.20
1.20
1.20
1.20
1.20
1.20
1.20
1.20
1.20
1.20
1.20
1.20
1.20
1.20
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
2.2
2.2
2.2
2.2
2.2
2.2
2.2
2.2
0.8
0.8
0.95
0.95
0.95
0.95
0.95
0.95
0.95
0.95
0.95
0.95
0.95
0.95
0.95
0.95
0.95
0.95
0.95
0.95
1.3
1.3
1.3
1.3
1.3
1.3
1.3
1.3
1.3
1.3
1.3
1.3
1.9
1.9
1.9
1.9
1.9
1.9
1.9
1.9
0.2
0.2
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
C-17
● Snap rings and grooves for rolling bearings
Snap rings
for diameter series 0, 2, 3 and 4 bearings
go
Ri
Ri
g
D3
φ
A
Ro
Ro
e
f
A (enlarged view)
Dimension unit: mm
Bearing No.
Dimensional
tolerance of bore
Reference
snap ring fitted
inside groove
tolerance of ∆D3
e
NR 30
NR 32
NR 35
NR 37
NR 40
NR 42
NR 44
NR 47
NR 50
NR 52
NR 55
NR 56
NR 58
NR 62
NR 65
NR 68
NR 72
NR 75
NR 80
NR 85
NR 90
NR 95
NR100
NR110
NR115
NR120
NR125
NR130
NR140
NR145
NR150
NR160
NR170
NR180
NR190
NR200
27.9
29.9
32.9
34.5
37.8
39.5
41.5
44.3
47.3
49.4
52.3
53.2
55.2
59.0
62.0
64.2
68.2
71.2
76.2
81.2
86.2
91.2
96.2
106.2
111.2
114.6
119.6
124.6
134.6
139.6
144.5
154.5
162.9
172.8
182.8
192.8
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Lower
− 0.4
− 0.4
− 0.4
− 0.4
− 0.4
− 0.5
− 0.5
− 0.5
− 0.5
− 0.5
− 0.5
− 0.6
− 0.6
− 0.6
− 0.6
− 0.6
− 0.6
− 0.6
− 0.6
− 0.6
− 0.6
− 0.6
− 0.8
− 0.8
− 0.8
− 0.8
− 0.8
− 0.8
− 1.2
− 1.2
− 1.2
− 1.2
− 1.2
− 1.2
− 1.4
− 1.4
D2
Ro
thickness
variation
Vf
max
min
min
max
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
snap ring
outer diameter
D3
Upper
nominal
bearing
outer
diameter
D
Ri
f
g
max
min
max
min
3.25
3.25
3.25
3.25
3.25
3.25
3.25
4.04
4.04
4.04
4.04
4.04
4.04
4.04
4.04
4.85
4.85
4.85
4.85
4.85
4.85
4.85
4.85
4.85
4.85
7.21
7.21
7.21
7.21
7.21
7.21
7.21
9.60
9.60
9.60
9.60
3.10
3.10
3.10
3.10
3.10
3.10
3.10
3.89
3.89
3.89
3.89
3.89
3.89
3.89
3.89
4.70
4.70
4.70
4.70
4.70
4.70
4.70
4.70
4.70
4.70
7.06
7.06
7.06
7.06
7.06
7.06
7.06
9.45
9.45
9.45
9.45
1.12
1.12
1.12
1.12
1.12
1.12
1.12
1.12
1.12
1.12
1.12
1.12
1.12
1.7
1.7
1.7
1.7
1.7
1.7
1.7
2.46
2.46
2.46
2.46
2.46
2.82
2.82
2.82
2.82
2.82
2.82
2.82
3.1
3.1
3.1
3.1
1.02
1.02
1.02
1.02
1.02
1.02
1.02
1.02
1.02
1.02
1.02
1.02
1.02
1.6
1.6
1.6
1.6
1.6
1.6
1.6
2.36
2.36
2.36
2.36
2.36
2.72
2.72
2.72
2.72
2.72
2.72
2.72
3.0
3.0
3.0
3.0
3
3
3
3
3
3
3
4
4
4
4
4
4
4
4
5
5
5
5
5
5
5
5
5
5
7
7
7
7
7
7
7
10
10
10
10
34.7
36.7
39.7
41.3
44.6
46.3
48.3
52.7
55.7
57.9
60.7
61.7
63.7
67.7
70.7
74.6
78.6
81.6
86.6
91.6
96.5
101.6
106.5
116.6
121.6
129.7
134.7
139.7
149.7
154.7
159.7
169.7
182.9
192.9
202.9
212.9
C-18
30
32
35
37
40
42
44
47
50
52
55
56
58
62
65
68
72
75
80
85
90
95
100
110
115
120
125
130
140
145
150
160
170
180
190
200
go
2
2
2
2
2
2
2
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
3
3
3
3
3
3
3
3
3
3
4
4
4
4
4
4
4
6
6
6
6
applicable bearing
dimension series
0
2
3
4
nominal bearing
outer diameter d
− 10
15 12
17 15
− −
− 17
20 −
22 −
25 20
− 22
28 25
30 −
− −
32 28
35 30
− 32
40 −
− 35
45 −
50 40
− 45
55 50
60 −
65 55
70 60
75 −
− 65
80 70
85 75
90 80
95 −
100 85
105 90
110 95
120 100
− 105
130 110
9
−
10
12
−
15
−
17
−
20
−
22
−
25
−
28
30
32
35
−
40
−
45
50
−
55
−
60
65
−
70
75
80
85
90
95
8
9
−
10
−
12
−
−
−
15
−
−
−
17
−
−
20
−
25
−
30
−
35
40
−
45
−
50
55
−
60
65
−
70
75
80
● Snap rings and grooves for rolling bearings
Groove
A
b
a
φD φd
φD1 φD2
ro
A (enlarged view)
f
Dimension unit: mm
Nominal Groove diameter
bearing
outer
diameter
D
D1
30
32
35
37
40
42
44
47
50
52
55
56
58
62
65
68
72
75
80
85
90
95
100
110
115
120
125
130
140
145
150
160
170
180
190
200
Dimension series
0
Groove width
2, 3, 4
Groove position
a
b
ro
max
min
max
min
max
min
max
min
28.17
30.15
33.17
34.77
38.10
39.75
41.75
44.60
47.60
49.73
52.60
53.60
55.60
59.61
62.60
64.82
68.81
71.83
76.81
81.81
86.79
91.82
96.80
106.81
111.81
115.21
120.22
125.22
135.23
140.23
145.24
155.22
163.65
173.66
183.64
193.65
27.91
29.90
32.92
34.52
37.85
39.50
41.50
44.35
47.35
49.48
52.35
53.35
55.35
59.11
62.10
64.31
68.30
71.32
76.30
81.31
86.28
91.31
96.29
106.30
111.30
114.71
119.71
124.71
134.72
139.73
144.73
154.71
163.14
173.15
183.13
193.14
−
2.06
2.06
−
−
2.06
2.06
2.06
−
2.06
2.08
−
2.08
2.08
−
2.49
−
2.49
2.49
−
2.87
2.87
2.87
2.87
2.87
−
2.87
2.87
3.71
3.71
3.71
3.71
3.71
3.71
−
5.69
−
1.90
1.90
−
−
1.90
1.90
1.90
−
1.90
1.88
−
1.88
1.88
−
2.29
−
2.29
2.29
−
2.67
2.67
2.67
2.67
2.67
−
2.67
2.67
3.45
3.45
3.45
3.45
3.45
3.45
−
5.44
2.06
2.06
2.06
2.06
2.06
2.06
−
2.46
2.46
2.46
−
2.46
2.46
3.28
3.28
3.28
3.28
3.28
3.28
3.28
3.28
−
3.28
3.28
−
4.06
4.06
4.06
4.90
−
4.90
4.90
5.69
5.69
5.69
5.69
1.90
1.90
1.90
1.90
1.90
1.90
−
2.31
2.31
2.31
−
2.31
2.31
3.07
3.07
3.07
3.07
3.07
3.07
3.07
3.07
−
3.07
3.07
−
3.86
3.86
3.86
4.65
−
4.65
4.65
5.44
5.44
5.44
5.44
1.65
1.65
1.65
1.65
1.65
1.65
1.65
1.65
1.65
1.65
1.65
1.65
1.65
2.2
2.2
2.2
2.2
2.2
2.2
2.2
3.0
3.0
3.0
3.0
3.0
3.4
3.4
3.4
3.4
3.4
3.4
3.4
3.8
3.8
3.8
3.8
1.35
1.35
1.35
1.35
1.35
1.35
1.35
1.35
1.35
1.35
1.35
1.35
1.35
1.9
1.9
1.9
1.9
1.9
1.9
1.9
2.7
2.7
2.7
2.7
2.7
3.1
3.1
3.1
3.1
3.1
3.1
3.1
3.5
3.5
3.5
3.5
C-19
Knuckle
radius
max
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
Catalog List and Appendix Table Contents
Catalog list……………………………………………… D- 2
Appendix table 1: Boundary dimensions of radial bearings
(Tapered roller bearings not included) …………………………… D- 4
Appendix table 2: Comparison of SI, CGS and gravity units … D- 6
Appendix table 3: Conversion to SI unit ………………………… D- 7
Appendix table 4: Tenth power multiples of SI unit …………… D- 7
Appendix table 5: Dimensional tolerance for shafts …………… D- 8
Appendix table 6: Dimensional tolerance for housing bore …… D-10
Appendix table 7: Basic tolerance ……………………………… D-12
Appendix table 8: Viscosity conversion table …………………… D-13
Appendix table 9: Kgf to N conversion table …………………… D-14
Appendix table 10: US customary to metric conversion table … D-15
Appendix table 11: Hardness conversion table (reference) …… D-16
Appendix table 12: Greek alphabet list ………………………… D-17
Catalog List & Appendix Table
●Catalog List
CATALOG TITLES
CATALOG No.
●BALL AND ROLLER BEARINGS
Ball and Roller Bearings
2202/C/E/I/P/S
Large Bearings
2250/E/P
Miniature and Extra Small Ball Bearings
3013/E
Miniature Molded Rubber Bearings
3014/E
Ball Bearings Shield and Seal Types
3015/E
Care and Maintenance of Bearings
3017/E/S/P
HL Bearings
3020/E
Bearings with Solid Grease
3022/E/S/P
Large Size, Long Operating Life Bearing-EA type
3024/E/P
Tapered Roller Bearings ECO-Top
3026/E/S/C
Self-Aligning Spherical Roller Bearings LH Series
3027/E/S/C
Bearings for Clean Environment
3028/E
Insulated Bearings-Resin Coated Type
3204/E
Type E Spherical Roller Bearings
3701/E
Sealed Self-Aligning Roller Bearings-WA Type
3702/E/S
Spherical Roller Bearings-UA Type
3710/E
HUB BEARINGS
4601/E
Aerospace Bearings
8102/E
Precision Rolling Bearings for Machine Tools
8401/E
Super High-speed Precision Bearings for Main Spindles of Machine Tools
8403/E
●NEEDLE ROLLER BEARINGS
Needle Roller Bearings
2300/E/I/P/S
Miniature Cam Followers
3601/E
●CONSTANT VELOCITY JOINTS
Constant Velocity Joints for Automobiles
5601/JE
TRI-Ball Joint / Constant Velocity Joints
5602/E
Constant Velocity Joints for Industrial Machines
5603/E
●BEARING UNITS
Bearing Units
2400/E/I/S
Bearing Units with Ductile Cast Iron Housing
3901/E
Bearing Units Steel Series
3902/E
Bearing Units Stainless Series
3903/E
Bearing Units Plastic Housing Series
3904/E
Triple-Sealed Bearings for Bearing Units
3905/E
D-2
●Catalog List
CATALOG TITLES
CATALOG No.
●PLUMMER BLOCKS
Plummer Blocks
2500E/S
●PRECISION BALL SCREWS
Precision Ball Screws
6000/E
Rolled Ball Screws
6206/E
●PARTS FEEDER
Parts Feeder
7018/E
NTN Parts Feeder with Standard Attachments (for Bolts or Washer)
7016/E
●CLUTCHES
One-way Clutches (Overrunning Clutches)
6402/E
●PLAIN BEARINGS
"BEAREE" NTN Engineering Plastics
5100/E
Miniature Plastic Sliding Screws
5112/E
NTN "BEARPHITE" Oil Impregnated Sintered Bearings
5202/E
Spherical Plain Bearings
5301/E
●HANDBOOK
Bearing Units Handbook
9011/E/S
Rolling Bearings Handbook
9012/E
Needle Roller Bearings Handbook
9013/E
●GUIDE BOOK
Parts Feeder Guide Book
7019/E
Automotive Products Guide Book
8021/E/D/F/C
New Products Guide
9208/E/C
Food Machinery Component Guide
9209/E
Product Catalog for Paper Manufacturing Machinery
9210/E
Steel Manufacturing Machinery Product Guide Book
9211/E
●ELECTRONIC CATALOG
NTN Electronic Catalog (CD-ROM for Windows)
7903/E
NTN Autoparts Catalog (CD-ROM for Windows)
7905/E
Reference Kit Program -Bearing Interchange- (CD-ROM for Windows)
7907/E
●OTHERS
Bearing Handling
9103/E/P/S
C:Chinese
K:Korean
E:English
S:Spanish
F:French
T:Thai
D:Germany
I:Italian
TC: Taipei Chinese
Note : The above are basic numbers. Renewal of the suffix by a revision.
D-3
●Appendix Table
Appendix table 1: Boundary dimensions of radial bearings (Tapered roller bearings not included)-1
Single row radial
ball bearings
Double row radial
ball bearings
Cylindrical roller
bearings
Needle roller
bearings
Spherical roller
bearings
68
78
67
N28 N38 NN48
NA48
Nominal
Diameter
bearing
bore
diameter Nominal
series 7
D
2
2.5
3
4
5
0.8
1
1
1.2
1.5
―
―
―
―
―
―
―
1.8
2
2.3
0.05 2.5
0.05
3
0.05
4
0.05
5
0.08
6
―
―
―
―
―
1
1
1.2
1.5
1.8
3 6
4 7
5 8
6 10
7 11
2
2
2
2.5
2.5
2.5
2.5
2.5
3
3
3
3
3
3.5
3.5
0.08
0.08
0.08
0.1
0.1
7
9
11
13
14
―
―
―
―
―
2 ―
2.5 3.5
3
4
3.5 5
3.5 5
Number
Dimension
― 0.6
1
1
― 1.5
2
2
― 2.5
outside
diameter
of
bearing
Nominal
outside
diameter
of
Chamfer bearing
dimension D
γs min
Dimension series
Dimension series
17 27 37 17∼37
08 18 28 38 48 58 68 08 18∼68
Nominal width B
―
―
―
―
―
160
N19 N29 NN39 NN49
NA49 NA59 NA69
239 249
Diameter series 9
Diameter series 8
Nominal
outside
diameter
of
Chamfer bearing
Nominal width B dimension
γs min D
d
3
4
5
6
7
69
79
60
70
N10 N20 NN30 NN40
230 240
Diameter series 0
Dimension series
09 19 29 39 49 59 69 09 19∼39 49∼69
Chamfer
dimension
γs min
Nominal width B
Nominal
outside
diameter
of
bearing
Dimension series
00 10 20 30 40 50 60 00 10∼60
―
―
6
7
8
―
―
―
―
―
―
―
2.5
2.8
2.8
0.15 ―
0.15 ―
0.2 0.15
0.2 0.15
0.3 0.15
7
12
14
17
19
―
―
―
―
―
―
―
―
―
―
0.3
0.3
0.3
0.3
0.3
0.2
0.3
0.3
0.3
0.3
23
30
30
30
30
―
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
1.4
1.5
2
2.3
2.6
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
0.05 ―
0.05
4
0.05
5
0.08
6
0.08
7
―
―
―
―
―
―
1.6
2
2.3
2.5
―
―
―
―
―
―
2.3
2.6
3
3.5
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
0.1
0.15
0.15
0.15
3
4
5
6
6
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
0.1
0.1
0.15
0.15
0.15
8
11
13
15
17
―
―
―
―
―
3
4
4
5
5
―
―
―
―
―
4
5
6
7
7
―
―
10
10
10
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
0.2
0.2
0.3
0.3
0.3
19
20
22
24
28
―
―
―
―
―
6 ―
6 ―
6
8
6
8
7 8.5
9
9
10
10
10
11
11
13
13
13
―
―
16
16
18
―
―
22
22
23
7 8.5
9 11
9 11
9 11
9 11
10
13
13
13
13
13
17
17
17
17
18
23
23
23
23
―
―
―
―
―
Chamfer
dimension
γs min
Nominal width B
D
―
―
―
―
―
―
―
3
3.5
4
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
0.15
0.15
0.15
3
4
5
6
6
―
―
―
―
8
5
6
7
9
10
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
0.15
0.2
0.2
0.3
0.3
22 ―
24 ―
26 ―
7
28
8
32
7
7
8
8
9
9
10
10
10
11
11
12
12
12
13
14
15
16
16
17
19
20
21
21
23
25 ― 0.3
27 ― 0.3
29 ― 0.3
29 0.3 0.3
30 0.3 0.3
35
42
44
47
52
8
8
8
8
8
10
12
12
12
12
12
14
14
14
15
14
16
16
16
18
18
22
22
22
24
24
30
30
30
32
32
40
40
40
43
0.3
0.3
0.3
0.3
0.3
0.3
0.6
0.6
0.6
0.6
8
9
00
01
02
8
9
10
12
15
12
14
15
18
21
2.5
3
3
4
4
―
―
―
―
―
3.5
4.5
4.5
5
5
0.1
0.1
0.1
0.2
0.2
16
17
19
21
24
―
―
―
―
―
4
4
5
5
5
5
5
6
6
6
6
6
7
7
7
8
8
9
9
9
03
04
/22
05
/28
17
20
22
25
28
23
27
―
32
―
4
4
―
4
―
―
―
―
―
―
5
5
―
5
―
0.2
0.2
―
0.2
―
26
32
34
37
40
―
4
4
4
4
5
7
7
7
7
6
8
―
8
―
7
10
10
10
10
9
12
―
12
―
― ―
16 22
16 22
16 22
16 22
―
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
30
37
39
42
45
―
7
7
7
7
06
/32
07
08
09
30
32
35
40
45
37
―
44
―
―
4
―
5
―
―
―
―
―
―
―
5
―
―
―
―
0.2
―
0.3
―
―
42
44
47
52
58
4
4
4
4
4
7
7
7
7
7
8
―
8
8
8
10
10
10
10
10
12
―
12
12
13
16
16
16
16
18
22
22
22
22
23
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
47
52
55
62
68
7
7
7
8
8
9
10
10
12
12
11
13
13
14
14
13
15
15
16
16
17
20
20
22
22
23
27
27
30
30
30
36
36
40
40
0.3
0.3
0.3
0.3
0.3
0.3
0.6
0.6
0.6
0.6
0.3
0.6
0.6
0.6
0.6
55
58
62
68
75
9
9
9
9
10
13
13
14
15
16
16
16
17
18
19
19
20
20
21
23
25
26
27
28
30
34
35
36
38
40
45
47
48
50
54
0.3
0.3
0.3
0.3
0.3
1
1
1
1
1
10
11
12
13
14
50
55
60
65
70
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
65
72
78
85
90
5
7
7
7
8
7
9
10
10
10
10
11
12
13
13
12
13
14
15
15
15
17
18
20
20
20
23
24
27
27
27
30
32
36
36
0.3
0.3
0.3
0.3
0.3
0.3
72
0.3
80
0.3
85
0.6
90
0.6 100
8
9
9
9
10
12
13
13
13
16
14
16
16
16
19
16
19
19
19
23
22
25
25
25
30
30
34
34
34
40
40
45
45
45
54
0.3
0.3
0.3
0.6
0.6
0.6
1
1
1
1
0.6
80
1
90
1
95
1
100
1
110
10
11
11
11
13
16
18
18
18
20
19
22
22
22
24
23
26
26
26
30
30
35
35
35
40
40
46
46
46
54
54
63
63
63
71
0.6
0.6
0.6
0.6
0.6
1
1.1
1.1
1.1
1.1
15
16
17
18
19
75
80
85
90
95
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
95
100
110
115
120
8
8
9
9
9
10
10
13
13
13
13
13
16
16
16
15
15
19
19
19
20
20
25
25
25
27
27
34
34
34
36
36
45
45
45
0.3
0.3
0.3
0.3
0.3
0.6
0.6
1
1
1
105
110
120
125
130
10
10
11
11
11
16
16
18
18
18
19
19
22
22
22
23
23
26
26
26
30
30
35
35
35
40
40
46
46
46
54
54
63
63
63
0.6
0.6
0.6
0.6
0.6
1
1
1.1
1.1
1.1
1
1
1.1
1.1
1.1
115
125
130
140
145
13
14
14
16
16
20
22
22
24
24
24
27
27
30
30
30
34
34
37
37
40
45
45
50
50
54
60
60
67
67
71
80
80
90
90
0.6
0.6
0.6
1
1
1.1
1.1
1.1
1.5
1.5
20
21
22
24
26
100
105
110
120
130
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
9
125
9
130
140 10
150 10
165 11
13
13
16
16
18
16
16
19
19
22
19
19
23
23
26
25
25
30
30
35
34
34
40
40
46
45
45
54
54
63
0.3
0.3
0.6
0.6
0.6
1
1
1
1
1.1
140
145
150
165
180
13
13
13
14
16
20
20
20
22
24
24
24
24
27
30
30
30
30
34
37
40
40
40
45
50
54
54
54
60
67
71
71
71
80
90
0.6
0.6
0.6
0.6
1
1.1
1.1
1.1
1.1
1.5
1.1
1.1
1.1
1.1
1.5
150
160
170
180
200
16
18
19
19
22
24
26
28
28
33
30
33
36
36
42
37
41
45
46
52
50
56
60
60
69
67
75
80
80
95
100
109
109
109
125
1
1
1
1
1.1
1.5
2
2
2
2
28
30
32
34
36
140
150
160
170
180
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
175
190
200
215
225
11
13
13
14
14
18
20
20
22
22
22
24
24
27
27
26
30
30
34
34
35
40
40
45
45
46
54
54
60
60
63
71
71
80
80
0.6
0.6
0.6
0.6
0.6
1.1
1.1
1.1
1.1
1.1
190
210
220
230
250
16
19
19
19
22
24
28
28
28
33
30
36
36
36
42
37
45
45
45
52
50
60
60
60
69
67
80
80
80
95
90
109
109
109
125
1
1
1
1
1.1
1.5
2
2
2
2
1.5
2
2
2
2
210
225
240
260
280
22
24
25
28
31
33
35
38
42
46
42
45
48
54
60
53 69
56 75
60 80
67 90
74 100
65
100
109
122
136
125
136
145
160
180
1.1
1.1
1.5
1.5
2
2
2.1
2.1
2.1
2.1
38
40
44
48
52
190
200
220
240
260
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
240
250
270
300
320
16
16
16
19
19
24
24
24
28
28
30
30
30
36
36
37
37
37
45
45
50
50
50
60
60
67 90 1
67 90 1
67 90 1
80 100 1
80 100 1
1.5
1.5
1.5
2
2
260
280
300
320
360
22
25
25
25
31
33
38
38
38
46
42
48
48
48
60
52 69
60 80
60 80
60 80
75 100
95
109
109
109
136
125
145
145
145
180
1.1
1.5
1.5
1.5
2
2
2.1
2.1
2.1
2.1
2
2.1
2.1
2.1
2.1
290
310
340
360
400
31
34
37
37
44
46
51
56
56
65
60 75
66 82
72 90
72 92
82 104
100
109
118
118
140
136
150
160
160
190
180
200
218
218
250
2
2
2.1
2.1
3
2.1
2.1
3
3
4
56
60
64
68
72
280
300
320
340
360
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
350
380
400
420
440
22
25
25
25
25
33
38
38
38
38
42
48
48
48
48
52
60
60
60
60
69
80
80
80
80
95
109
109
109
109
125
145
145
145
145
1.1
1.5
1.5
1.5
1.5
2
2.1
2.1
2.1
2.1
380
420
440
460
480
31
37
37
37
37
46
56
56
56
56
60
72
72
72
72
75
90
90
90
90
100
118
118
118
118
136
160
160
160
160
180
218
218
218
218
2
2.1
2.1
2.1
2.1
2.1
3
3
3
3
2.1
3
3
3
3
420
460
480
520
540
44
50
50
57
57
65 82 106
74 95 118
74 95 121
82 106 133
82 106 134
140
160
160
180
180
190
218
218
243
243
250
290
290
325
325
3
4
4
4
4
4
4
4
5
5
76
80
84
88
92
380
400
420
440
460
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
480
500
520
540
580
31
31
31
31
37
46
46
46
46
56
60
60
60
60
72
75
75
75
75
90
100
100
100
100
118
136
136
136
136
160
180
180
180
180
218
2
2
2
2
2.1
2.1
2.1
2.1
2.1
3
520
540
560
600
620
44
44
44
50
50
65
65
65
74
74
82
82
82
95
95
106
106
106
118
118
140
140
140
160
160
190
190
190
218
218
250
250
250
290
290
3
3
3
4
4
4
4
4
4
4
4
4
4
4
4
560
600
620
650
680
57 82
63 90
63 90
67 94
71 100
106
118
118
122
128
135
148
150
157
163
180
200
200
212
218
243
272
272
280
300
325
355
355
375
400
4
5
5
5
5
5
5
5
6
6
96
/500
/530
/560
/600
480
500
530
560
600
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
600
620
650
680
730
37
37
37
37
42
56
56
56
56
60
72
72
72
72
78
90
90
90
90
98
118
118
118
118
128
160
160
160
160
175
218
218
218
218
236
2.1
2.1
2.1
2.1
3
3
3
3
3
3
650
670
710
750
800
54
54
57
60
63
78
78
82
85
90
100
100
106
112
118
128
128
136
140
150
170
170
180
190
200
230
230
243
258
272
308
308
325
345
355
4
4
4
5
5
5
5
5
5
5
5
5
5
5
5
700
720
780
820
870
71
71
80
82
85
100
100
112
115
118
128
128
145
150
155
165
167
185
195
200
218
218
250
258
272
300
300
335
355
365
400
400
450
462
488
5
5
6
6
6
6
6
6
6
6
/630
/670
/710
/750
/800
630
670
710
750
800
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
780
820
870
920
980
48
48
50
54
57
69 88 112
69 88 112
74 95 118
78 100 128
82 106 136
150
150
160
170
180
200
200
218
230
243
272
272
290
308
325
3
3
4
4
4
4
4
4
5
5
850
900
950
1000
1060
71
73
78
80
82
100
103
106
112
115
128
136
140
145
150
165
170
180
185
195
218
230
243
250
258
300
308
325
335
355
400
412
438
450
462
5
5
5
6
6
6
6
6
6
6
6
6
6
6
6
920
980
1030
1090
1150
92
100
103
109
112
128
136
140
150
155
170
180
185
195
200
212
230
236
250
258
290
308
315
335
345
388
425
438
462
475
515
560
580
615
630
6
6
6
7.5
7.5
7.5
7.5
7.5
7.5
7.5
/850 850
/900 900
/950 950
/1000 1000
/1060 1060
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
1030
1090
1150
1220
1280
57 82
60 85
63 63
71 90
71 100
106
112
118
128
128
136
140
150
165
165
180
190
200
218
218
243
258
272
300
300
325
345
355
400
400
4
5
5
5
5
5
5
5
6
6
1120 85 118
1180 88 122
1250 95 132
1320 103 140
1400 109 150
155
165
175
185
195
200
206
224
236
250
272
280
300
315
335
365
375
400
438
462
488
500
545
580
615
6
6
6
6
7.5
6
6
7.5
7.5
7.5
6
6
7.5
7.5
7.5
1220
1280
1300
1420
1500
118
122
132
136
140
165
170
180
185
195
212
218
236
243
250
272
280
300
308
325
365
375
412
412
438
500
515
560
560
600
670
690
730
750
800
7.5
7.5
7.5
7.5
9.5
7.5
7.5
7.5
7.5
9.5
/1120 1120
/1180 1180
/1250 1250
/1320 1320
/1400 1400
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
1360
1420
1500
1600
1700
78
78
80
88
95
106
106
112
122
132
140
140
145
165
175
180
180
185
206
224
243
243
250
280
300
325
325
335
375
400
438
438
450
500
545
5
5
6
6
6
6
6
6
6
7.5
1460
1540
1630
1720
1820
109
115
122
128
―
150
160
170
175
185
195
206
218
230
243
250
272
280
300
315
335
355
375
400
425
462
488
515
545
―
615
650
690
710
―
7.5
7.5
7.5
7.5
―
7.5
7.5
7.5
7.5
9.5
7.5
7.5
7.5
7.5
9.5
1580
1660
1750
1850
1950
145
155
―
―
―
200
212
218
230
243
265
272
290
300
315
345
355
375
400
412
462 615 825 9.5 9.5
475 650 875 9.5 9.5
500 ― ― ― 9.5
530 ― ― ― 12
545 ― ― ― 12
/1500 1500
/1600 1600
/1700 1700
/1800 1800
/1900 1900
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
1820
1950
2060
2180
2300
―
―
―
―
―
140
155
160
165
175
185
200
206
218
230
243
265
272
290
300
315
345
355
375
400
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
7.5
7.5
7.5
9.5
9.5
1950
2060
2180
2300
2430
―
―
―
―
―
195
200
212
218
230
258
265
280
290
308
335
345
355
375
400
450
462
475
500
530
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
9.5
9.5
9.5
12
12
9.5
9.5
9.5
12
12
2120
2240
2360
2500
―
―
―
―
―
―
272
280
290
308
―
355
365
375
400
―
462
475
500
530
―
615
630
650
690
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
/2000 2000 ―
―
―
―
― 2430
― 190 250 325 425 ―
―
― 9.5
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
― ―
D-4
12
12
15
15
―
●Appendix Table
Appendix table 1: Boundary dimensions of radial bearings (Tapered roller bearings not included)-2
Single row radial
ball bearings
Double row radial
ball bearings
Cylindrical roller
bearings
Needle roller
bearings
Spherical roller
bearings
62
72
NN31
d
Dimension
Number
―
1
―
2
―
―
―
―
―
―
outside
diameter
of
bearing
Dimension series
01 11 21 31 41 01
Nominal width B
D
42
22
52
32
N22 N32
Nominal
outside
11∼41 diameter
of
Chamfer bearing
dimension
γs min D
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
Dimension series
82 02 12 22 32 42
Nominal width B
―
―
―
―
―
―
―
―
―
―
N23 N33
83 03 13 23 33
Nominal width B
―
―
―
―
―
―
―
―
―
―
― 5
― 7
― 8
― 10
― 11
―
―
―
―
―
0.1
0.15
0.15
0.2
0.3
0.15
0.2
0.3
0.3
0.3
13
16
19
22
26
―
―
―
―
―
―
―
―
―
―
53
33
N4
Diameter series 4
Nominal Dimension
series
outside
83 03∼33 diameter
04 24 Chamfer
of
Chamfer bearing Nominal dimension
width
γs min
dimension
D
γs min
B
Dimension series
―
―
―
―
―
4
5
5
6
7
―
―
―
―
―
Nominal
outside
82 02∼42 diameter
of
Chamfer bearing
dimension
D
γs min
―
―
―
―
―
―
―
―
―
―
43
23
213
223
Diameter series 3
―
―
―
―
―
―
―
―
―
―
64
74
623 633
13
N3
222 232
Diameter series 2
231 241
Diameter series 1
Nominal
bearing
bore
diameter Nominal
63
73
1,22 1,32
12
N2
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
5
5
6
7
9
―
―
―
―
―
―
7
―
9
― 10
11 13
13 15
―
―
―
―
―
0.2
0.3
0.3
0.3
0.3
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
10
11
12
13
15
―
―
―
―
―
3
4
5
6
7
3
4
5
6
7
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
10 2.5
13
3
16 3.5
19
4
22
5
8
9
00
01
02
8
9
10
12
15
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
24
26
30
32
35
5
6
7
7
8
8
8
9
10
11
―
―
―
―
―
―
―
14
14
14
12
13
14.3
15.9
15.9
―
―
―
―
20
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.6
0.6
0.6
28 ―
30 ―
9
35
9
37
9
42
9
10
11
12
13
―
―
―
―
―
13
14
17
17
17
15
16
19
19
19
―
―
0.3
0.3
0.3
0.3
0.6
0.6
1
1
30
32
37
42
52
14
15
16
19
24
0.6
0.6
0.6
1
1.1
03
04
/22
05
/28
17
20
22
25
28
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
40
8
47
9
50
9
52 10
58 10
12
14
14
15
16
―
―
―
―
―
16
18
18
18
19
17.5
20.6
20.6
20.6
23
22
27
27
27
30
0.3
0.3
0.3
0.3
0.6
0.6
1
1
1
1
47
52
56
62
68
10
10
11
12
13
14
15
16
17
18
―
―
―
―
―
19
21
21
24
24
22.2
22.2
25
25.4
30
0.6
0.6
0.6
0.6
0.6
1
1.1
1.1
1.1
1.1
62 17 29
72 19 33
― ― ―
80 21 36
― ― ―
1.1
1.1
―
1.5
―
06
/32
07
08
09
30
32
35
40
45
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
62
65
72
80
85
10
11
12
13
13
16
17
17
18
19
―
―
―
―
―
20
21
23
23
23
23.8
25
27
30.2
30.2
32
33
37
40
40
0.6
0.6
0.6
0.6
0.6
1
72
1
75
1.1 80
1.1 90
1.1 100
13
14
14
16
17
19
20
21
23
25
―
―
―
―
―
27
28
31
33
36
30.2
32
34.9
36.5
39.7
0.6
0.6
0.6
1
1
1.1 90 23 40
1.1 ― ― ―
1.5 100 25 43
1.5 110 27 46
1.5 120 29 50
1.5
―
1.5
2
2
10
11
12
13
14
50
55
60
65
70
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
90
100
110
125
125
13
14
16
18
18
20
21
22
23
24
―
―
―
―
―
23
25
28
31
31
30.2
33.3
36.5
38.1
39.7
40
45
50
56
56
0.6
1
1
1
1
1.1
1.5
1.5
1.5
1.5
110
120
130
140
150
19
21
22
24
25
27
29
31
33
35
―
―
―
―
―
40
43
46
48
51
44.4
49.2
54
58.7
63.5
1
1.1
1.1
1.1
1.5
2
2
2.1
2.1
2.1
130
140
150
160
180
31
33
35
37
42
53
57
60
64
74
2.1
2.1
2.1
2.1
3
15
16
17
18
19
75 ― ―
80 ― ―
85 ― ―
90 150 ―
95 160 ―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
60
65
―
―
―
―
―
―
―
―
2
2
130
140
150
160
170
18
19
21
22
24
25
26
28
30
32
―
―
―
―
―
31
33
36
40
43
41.3
44.4
49.2
52.4
55.6
56
60
65
69
75
1
1
1.1
1.1
1.1
1.5
2
2
2
2.1
160
170
180
190
200
27
28
30
30
33
37
39
41
43
45
―
―
―
―
―
55
58
60
64
67
68.3
68.3
73
73
77.8
1.5
1.5
2
2
2
2.1
2.1
3
3
3
190
200
210
225
240
45
48
52
54
55
77
80
86
90
95
3
3
4
4
4
1.5
1.5
1.5
―
―
2.1
2.1
2.1
2.1
3
215
225
240
260
280
36
37
42
44
48
47
49
50
55
58
51
53
57
62
66
73
77
80
86
93
82.6
87.3
92.1
106
112
2.1
2.1
3
3
3
3
3
3
3
4
250
260
280
310
340
58
60
65
72
78
98
100
108
118
128
4
4
4
5
5
62
65
68
72
75
70
75
79
84
88
102
108
114
120
126
20
21
22
24
26
100
105
110
120
130
165
175
180
200
210
21
22
22
25
25
30
33
33
38
38
39
42
42
48
48
52
56
56
62
64
65
69
69
80
80
1.1
1.1
1.1
1.5
1.5
2
2
2
2
2
180
190
200
215
230
25
27
28
―
―
34
36
38
40
40
―
―
―
42
46
46
50
53
58
64
60.3 80
65.1 85
69.8 90
76
95
80 100
28
30
32
34
36
140
150
160
170
180
225
250
270
280
300
27
31
34
34
37
40
46
51
51
56
50
60
66
66
72
68
80
86
88
96
85
100
109
109
118
1.5
2
2
2
2.1
2.1
2.1
2.1
2.1
3
250
270
290
310
320
―
―
―
―
―
42
45
48
52
52
50
54
58
62
62
68
73
80
86
86
88
96
104
110
112
109
118
128
140
140
―
―
―
―
―
3
3
3
4
4
300
320
340
360
380
50
―
―
―
―
118
128
136
140
150
4
―
―
―
―
4
4
4
4
4
360
380
400
420
440
82
85
88
92
95
132
138
142
145
150
5
5
5
5
6
38
40
44
48
52
190
200
220
240
260
320
340
370
400
440
42
44
48
50
57
60 78
65 82
69 88
74 95
82 106
104
112
120
128
144
128
140
150
160
180
3
3
3
4
4
3
3
4
4
4
340
360
400
440
480
―
―
―
―
―
55
58
65
72
80
65 92 120 150
70 98 128 160
78 108 144 180
85 120 160 200
90 130 174 218
―
―
―
―
―
4
4
4
4
5
400
420
460
500
540
―
78 92 132 155
―
80 97 138 165
―
88 106 145 180
―
95 114 155 195
― 102 123 165 206
―
―
―
―
―
5
5
5
5
6
460
480
540
580
620
98
102
115
122
132
155
160
180
190
206
6
6
6
6
7.5
56
60
64
68
72
280
300
320
340
360
460
500
540
580
600
57 82 106 146
63 90 118 160
71 100 128 176
78 106 140 190
78 106 140 192
180
200
218
243
243
4
5
5
5
5
5
5
5
5
5
500
540
580
620
650
―
―
―
―
―
80 90 130 176
85 98 140 192
92 105 150 208
92 118 165 224
95 122 170 232
218
243
258
280
290
―
―
―
―
―
5
5
5
6
6
580
620
670
710
750
―
―
―
―
―
108
109
112
118
125
132
140
155
165
170
175
185
200
212
224
224
236
258
272
290
―
―
―
―
―
6
7.5
7.5
7.5
7.5
670
710
750
800
850
140
150
155
164
180
224
236
250
265
280
7.5
7.5
9.5
9.5
9.5
76
80
84
88
92
380
400
420
440
460
620
650
700
720
760
78
80
88
88
95
106
112
122
122
132
140
145
165
165
175
194
200
224
226
240
243
250
280
280
300
5
6
6
6
6
5
6
6
6
7.5
680
720
760
790
830
―
―
―
―
―
95
103
109
112
118
132
140
150
155
165
175
185
195
200
212
240
256
272
280
296
300
315
335
345
365
―
―
―
―
―
6
6
7.5
7.5
7.5
780
820
850
900
950
―
―
―
―
―
128
136
136
145
155
175
185
190
200
212
230
243
250
265
280
300
308
315
345
365
―
―
―
―
―
7.5
7.5
9.5
9.5
9.5
900
950
980
1030
1060
190
200
206
212
218
300
315
325
335
345
9.5
12
12
12
12
96
/500
/530
/560
/600
480
500
530
560
600
790
830
870
920
980
100
106
109
115
122
136
145
150
160
170
180
190
195
206
218
248
264
272
280
300
308
325
335
355
375
6
7.5
7.5
7.5
7.5
7.5
7.5
7.5
7.5
7.5
870
920
980
1030
1090
―
―
―
―
―
125
136
145
150
155
170
185
200
206
212
224
243
258
272
280
310
336
355
365
388
388
412
450
475
488
―
―
―
―
―
7.5
7.5
9.5
9.5
9.5
980
1030
1090
1150
1220
―
―
―
―
―
160
170
180
190
200
218
230
243
258
272
290
300
325
335
355
375
388
412
438
462
―
―
―
―
―
9.5
12
12
12
15
1120
1150
1220
1280
1360
230
236
250
258
272
365
375
400
412
438
15
15
15
15
15
/630
/670
/710
/750
/800
630 1030
670 1090
710 1150
750 1220
800 1280
128
136
140
150
155
175
185
195
206
212
230
243
250
272
272
315
336
345
365
375
400
412
438
475
475
7.5
7.5
9.5
9.5
9.5
7.5
7.5
9.5
9.5
9.5
1150
1220
1280
1360
1420
―
―
―
―
―
165
175
180
195
200
230
243
250
265
272
300
315
325
345
355
412
438
450
475
488
515
545
560
615
615
―
―
―
―
―
12
12
12
15
15
1280
1360
1420
1500
1600
―
―
―
―
―
206
218
224
236
258
280
300
308
325
355
375
400
412
438
462
488
515
530
560
600
―
―
―
―
―
15 1420 280 450 15
15 1500 290 475 15
15 ― ― ― ―
15 ― ― ― ―
15 ― ― ― ―
/850 850 1360
/900 900 1420
/950 950 1500
/1000 1000 1580
/1060 1060 1660
165
165
175
185
190
224
230
243
258
265
290
300
315
335
345
400
412
438
462
475
500
515
545
580
600
12
12
12
12
12
12
12
12
12
15
1500
1580
1660
1750
―
―
―
―
―
―
206
218
230
243
―
280
300
315
330
―
375
388
412
425
―
515
515
530
560
―
650
670
710
750
―
―
―
―
―
―
15
15
15
15
―
1700
1780
1850
1950
―
―
―
―
―
―
272
280
290
300
―
375
388
400
412
―
488
500
515
545
―
630
650
670
710
―
―
―
―
―
―
19
19
19
19
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
/1120 1120 1750
/1180 1180 1850
/1250 1250 1950
/1320 1320 2060
/1400 1400 2180
―
―
―
―
―
280
290
308
325
345
365
388
400
425
450
475
500
530
560
580
630
670
710
750
775
―
―
―
―
―
15
15
15
15
19
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
/1500 1500 2300 ― 355 462 600 800 ―
19
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
D-5
●Appendix Table
Appendix table 2: Comparison of SI, CGS and gravity units-1
Unit system
Quantity
SI
CGS system
Gravitation system
Length L
m
cm
m
Mass M
kg
g
kgf・s2/m
Time T
s
s
s
Acceleration
m/s2
Gal
m/s2
Force
N
dyn
kgf
Stress
Pa
dyn/cm2
kgf/m2
Pressure
Pa
dyn/cm2
kgf/m2
Energy
J
erg
kgf・m
Appendix table 3: SI-customary unit conversion table-1
Quantity
Angle
Length
Area
Volume
Mass
Time
Speed
Frequency and vibration
Revolutions (rotational speed)
Angular speed
Acceleration
Force
Force moment
Inertia moment
Stress
Pressure
Energy
Power rate and power
Unit designation
Degree
Minute
Second
Meter
Micron
Angstrom
Square meter
Are
Hectare
Cubic meter
Liter
Kilogram
Ton
Kilogram force / square second per meter
Second
Minute
Hour
Day
Meters per second
Knot
Cycle
Revolutions per minute (rpm)
Radians per second
Meters per square second
G
Kilogram force
Ton force
Dyne
Kilogram force / meter
Kilogram force / meter / square second
Kilogram force per square meter
Kilogram force per square meter
Meter water column
Meter of mercury
Torr
Atmosphere
Bar
Erg
IT calorie
Kilogram force / meter
Kilowatt hour
Metric horsepower per hour
Watt
Metric horsepower
Kilogram force / meter per second
Symbol
°
′
″
（sec）
m
μ
Å
m2
a
ha
m3
R.L
kg
t
kgf・s2/m
s
min
h
d
m/s
kn
s-1（pps）
rpm（r/min）
rad/s
m/s2
G
kgf
tf
dyn
kgf・m
kgf・m・s2
kgf/m2
kgf/m2
mH2O
mHg
Torr
atm
bar
erg
calIT
kgf・m
kW・h
PS・h
W
PS
kgf・m/s
Conversion rate to SI
π/180
π/10 800
π/648 000
1
-6
10
-10
10
1
2
10
4
10
1
-3
10
1
3
10
9.806 65
1
60
3 600
86 400
1
1 852/3 600
1
1/60
1
1
9.806 65
9.806 65
9 806.65
-5
10
9.806 65
9.806 65
9.806 65
9.806 65
9 806.65
101 325/0.76
101 325/760
101 325
5
10
-7
10
4.186 8
9.806 65
6
3.600×10
6
2.647 79×10
1
735.5
9.806 65
D-6
SI unit designation
Radian
Symbol
rad
Meter
m
Square meter
m2
Cubic meter
m3
Kilogram
kg
Second
s
Meters per second
m/s
Hertz
Per second
Radians per second
Hz
s-1
rad/s
Meters per second square
m/s2
Newton
Newton meter
Kilogram / square meter
Pascal or newton per square meter
Pascal
N
N・m
kg・m2
Pa or N/m2
Pa
Joule
J
Watt
W
●Appendix Table
Appendix table 2: Comparison of SI, CGS and gravity units-2
Unit system
Quantity
SI
CGS system
Gravitation system
Power rate
W
erg/s
kgf・m/s
Temperature
K
°
C
°
C
Viscosity
Pa・s
P
kgf・s/m2
Dynamic viscosity Magnetic flux
m2/s
Wb
St
Mx
m2/s
―
Flux density
T
Gs
―
Magnetic field strength
A/m
Oe
―
Appendix table 3: SI-customary unit conversion table-2
Quantity
Viscosity
Dynamic viscosity
Temperature
Radioactive
Dosage
Absorption dosage
Dosage equivalent
Magnetic flux
Flux density
Magnetic field strength
Quantity of electricity
Potential difference
Electric resistance
Current
Unit designation
Poise
Centipoise
Kilogram force / square second per meter
Stoke
Centistoke
Degree
Curie
Roentgen
Rad
Rem
Maxwell
Gamma
Gauss
Oersted
Coulomb
Volt
Ohm
Ampere
Symbol
P
cP
kgf・s/m2
St
cSt
˚C
Ci
R
rad
rem
Mx
γ
Gs
Oe
C
V
Ω
A
Conversion rate to SI
-1
10
-3
10
9.806 65
-4
10
-6
10
+273.15
10
3.7×10
-4
2.58×10
-2
10
-2
10
-8
10
-9
10
-4
10
3
10 /4π
1
1
1
1
Appendix table 4: Tenth power multiples of SI unit
Multiples of
unit
18
10
15
10
12
10
9
10
6
10
3
10
2
10
10
Name
Exa
Peta
Tera
Giga
Mega
Kilo
Hecto
Deca
Prefix
Symbol
E
P
T
G
M
k
h
da
Multiples of
unit
-1
10
-2
10
-3
10
-6
10
-9
10
-12
10
-15
10
-18
10
Prefix
Name
Symbol
Deci
d
Centi
c
Mili
m
Micro
μ
Nano
n
Pico
p
Femto
f
Ato
a
D-7
SI unit designation
Pascal second
Symbol
Pa・s
Square meter per second
m2/s
Kelvin
Becquerel
Coulombs per kilogram
Gray
Sievert
Weber
K
Bq
C/kg
Gy
Sv
Wb
Tesla
Amperes per meter
Coulomb
Volt
Ohm
Ampere
T
A/m
C
V
Ω
A
●Appendix Table
Appendix table 5: Dimensional tolerance for shafts
Diameter
division
mm
over
3
6
10
18
30
40
50
65
80
100
120
140
160
180
200
225
250
280
315
355
400
450
500
560
630
710
800
900
1 000
1 120
1 250
1 400
incl.
6
10
18
30
40
50
65
80
100
120
140
160
180
200
225
250
280
315
355
400
450
500
560
630
710
800
900
1 000
1 120
1 250
1 400
1 600
Diameter
division
mm
over
3
6
10
18
30
40
50
65
80
100
120
140
160
180
200
225
250
280
315
355
400
450
500
560
630
710
800
900
1 000
1 120
1 250
1 400
a13
c12
d6
−
−
−260 −304 −145 −189
−
−
−
− − 76 −120
−
−
−22 − 66
−
−
−
−
−290 −340 −160 −210
−
−
−
− − 80 −130
−
−
−24 − 74
−
−
−
−
−320 −376 −170 −226
−
−
−
− − 86 −142
−
−
−26 − 82
−
−
−
−
−350 −416 −195 −261
−
−
−
− − 98 −164
−
−
−28 − 94
−
−
−
−
−390 −468 −220 −298
−
−
−
− −110 −188
−
−
−30 −108
＋6
− 5 ＋ 5.5
＋6
high
−10
−13
−16
−20
low
−15
−19
−24
−29
high
− 10
− 13
− 16
− 20
low
− 18
− 22
− 27
− 33
high
− 4
− 5
− 6
− 7
low
−9
−11
−14
−16
high
− 4
− 5
− 6
− 7
low
− 12
− 14
− 17
− 20
− 80 − 96 − 50 − 66 − 50 − 440 −25 −36 − 25 − 41 − 9 −20 − 9 − 25
−100 −119 − 60 − 79 − 60 − 520 −30 −43 − 30 − 49 −10 −23 −10 − 29
−120 −142 − 72 − 94 − 72 − 612 −36 −51 − 36 − 58 −12 −27 −12 − 34
−145 −170 − 85 −110 − 85 − 715 −43 −61 − 43 − 68 −14 −32 −14 − 39
−170 −199 −100 −129 −100 − 820 −50 −70 − 50 − 79 −15 −35 −15 − 44
−190 −222 −110 −142 −110 − 920 −56 −79 − 56 − 88 −17 −40 −17 − 49
−210 −246 −125 −161 −125 −1 015 −62 −87 − 62 − 98 −18 −43 −18 − 54
−230 −270 −135 −175 −135 −1 105 −68 −95 − 68 −108 −20 −47 −20 − 60
js5
j6
low
− 2.5
− 3
− 4
− 4.5
low
− 200
− 245
− 302
− 370
g6
−
high
＋ 2.5
＋ 3
＋ 4
＋ 4.5
high
− 20
− 25
− 32
− 40
g5
−
low
− 2
− 2
− 3
− 4
low
− 28
− 34
− 43
− 53
f6
low
− 190
− 230
− 275
− 320
− 370
− 380
− 440
− 450
− 520
− 530
− 600
− 610
− 630
− 700
− 720
− 740
− 820
− 850
− 930
− 970
−1 070
−1 110
high
＋3
＋4
＋5
＋5
high
− 20
− 25
− 32
− 40
f5
high
− 70
− 80
− 95
−110
−120
−130
−140
−150
−170
−180
−200
−210
−230
−240
−260
−280
−300
−330
−360
−400
−440
−480
incl.
6
10
18
30
40
50
65
80
100
120
140
160
180
200
225
250
280
315
355
400
450
500
560
630
710
800
900
1 000
1 120
1 250
1 400
1 600
low
− 38
− 49
− 61
− 78
e13
low
− 450
− 500
− 560
− 630
− 700
− 710
− 800
− 820
− 920
− 950
−1 090
−1 150
−1 210
−1 380
−1 460
−1 540
−1 730
−1 860
−2 090
−2 240
−2 470
−2 620
j5
high
− 30
− 40
− 50
− 65
e6
high
− 270
− 280
− 290
− 300
− 310
− 320
− 340
− 360
− 380
− 410
− 460
− 520
− 580
− 660
− 740
− 820
− 920
−1 050
−1 200
−1 350
−1 500
−1 650
high
＋ 6
＋ 7
＋ 8
＋ 9
js6
low
− 2
− 2
− 3
− 4
high
＋ 4
＋ 4.5
＋ 5.5
＋ 6.5
j7
k4
k5
low
− 4
− 4.5
− 5.5
− 6.5
high
＋ 8
＋10
＋12
＋13
low
− 4
− 5
− 6
ー 8
high
＋ 5
＋ 5
＋ 6
＋ 8
low
＋1
＋1
＋1
＋2
high
＋ 6
＋ 7
＋ 9
＋11
− 5.5 ＋11 − 5 ＋ 8
− 8
＋15 ー10
＋ 9
＋2 ＋13
ー 7 ＋ 6.5
− 6.5 ＋12 − 7 ＋ 9.5
− 9.5 ＋18 ー12
＋10
＋6
ー 9 ＋ 7.5
− 7.5 ＋13 − 9 ＋11
−11
＋20 ー15
＋7
−11 ＋ 9
− 9
＋14 −11 ＋12.5
＋7
−13 ＋10
−10
＋16 −13 ＋14.5
＋7
−16 ＋11.5
−11.5 ＋16 −16 ＋16
＋7
−18 ＋12.5
＋7
−20 ＋13.5
k6
low
＋1
＋1
＋1
＋2
high
＋ 9
＋10
＋12
＋15
m5
low
＋1
＋1
＋1
＋2
high
＋ 9
＋12
＋15
＋17
low
＋ 4
＋ 6
＋ 7
＋ 8
＋2 ＋18
＋2 ＋20
＋ 9
＋2 ＋15
＋2 ＋21
＋2 ＋24
＋11
＋13
＋3 ＋18
＋3 ＋25
＋3 ＋28
＋13
−12.5 ＋22 ー18
＋15
＋3 ＋21
＋3 ＋28
＋3 ＋33
＋15
−14.5 ＋25 −21
＋18
＋4 ＋24
＋4 ＋33
＋4 ＋37
＋17
−16
＋26 −26
＋20
＋4 ＋27
＋4 ＋36
＋4 ＋43
＋20
−12.5 ＋18 −18 ＋18
−18
＋29 −28
＋22
＋4 ＋29
＋4 ＋40
＋4 ＋46
＋21
−13.5 ＋20 −20 ＋20
−20
＋31 ー32
＋25
＋5 ＋32
＋5 ＋45
＋5 ＋50
＋23
−
−
−
−
−
−
＋22
−22
−
−
−
−
−
−
＋44
0
−
−
−
−
−
−
−
−
＋25
−25
−
−
−
−
−
−
＋50
0
−
−
−
−
−
−
−
−
＋28
−28
−
−
−
−
−
−
＋56
0
−
−
−
−
−
−
−
−
＋33
−33
−
−
−
−
−
−
＋66
0
−
−
−
−
−
−
−
−
＋39
−39
−
−
−
−
−
−
＋78
0
−
−
D-8
●Appendix Table
Unit μm
h4
h5
h6
h7
h8
h9
high low high low high low high low high low high
0 − 4 0 − 5 0 − 8 0 − 12 0 − 18 0
0 − 4 0 − 6 0 − 9 0 − 15 0 − 22 0
0 − 5 0 − 8 0 −11 0 − 18 0 − 27 0
0 − 6 0 − 9 0 −13 0 − 21 0 − 33 0
h10
low
− 30
− 36
− 43
− 52
high
0
0
0
0
h11
js4
h13
low high low high low
high
− 48 0 − 75 0 −180 ＋ 2
− 58 0 − 90 0 −220 ＋ 2
− 70 0 −110 0 −270 ＋ 2.5
− 84 0 −130 0 −330 ＋ 3
low
− 2
− 2
− 2.5
− 3
0
− 7
0 − 11 0
−16
0
− 25
0
− 39 0
− 62 0
−100
0
−160
0
−390 ＋ 3.5
− 3.5
0
− 8
0
−13 0
−19
0
− 30
0
− 46 0
− 74 0
−120
0
−190
0
−460 ＋ 4
− 4
0
−10
0
−15 0
−22
0
− 35
0
− 54 0
− 87 0
−140
0
−220
0
−540 ＋ 5
− 5
0
−12
0
−18 0
−25
0
− 40
0
− 63 0
−100 0
−160
0
−250
0
−630 ＋ 6
− 6
0
−14
0
−20 0
−29
0
− 46
0
− 72 0
−115 0
−185
0
−290
0
−720 ＋ 7
− 7
0
−16
0
−23 0
−32
0
− 52
0
− 81 0
−130 0
−210
0
−320
0
−810 ＋ 8
− 8
0
−18
0
−25 0
−36
0
− 57
0
− 89 0
−140 0
−230
0
−360
0
−890 ＋ 9
− 9
0
−20
0
−27 0
−40
0
− 63
0
− 97 0
−155 0
−250
0
−400
0
−970 ＋10
−10
−
−
−
−
0
−44
0
− 70
0
−110 0
−175 0
−280
0
−440
0
−
−
−
−
−
−
−
0
−50
0
− 80
0
−125 0
−200 0
−320
0
−500
0
−
−
−
−
−
−
−
0
−56
0
− 90
0
−140 0
−230 0
−360
0
−560
0
−
−
−
−
−
−
−
0
−66
0
−105
0
−165 0
−260 0
−420
0
−660
0
−
−
−
−
−
−
−
0
−78
0
−125
0
−195 0
−310 0
−500
0
−780
0
−
−
−
m6
n5
high
＋13
＋16
＋20
＋24
n6
low
＋ 8
＋10
＋12
＋15
high
＋ 16
＋ 19
＋ 23
＋ 28
p5
low
＋ 8
＋10
＋12
＋15
high
＋17
＋21
＋26
＋31
p6
high
＋ 12
＋ 15
＋ 18
＋ 21
low
＋ 4
＋ 6
＋ 7
＋ 8
low
＋12
＋15
＋18
＋22
high
＋ 20
＋ 24
＋ 29
＋ 35
low
＋ 12
＋ 15
＋ 18
＋ 22
＋ 25
＋ 9 ＋28 ＋17 ＋ 33 ＋17 ＋37 ＋26 ＋ 42 ＋ 26
＋ 30
＋11 ＋33 ＋20 ＋ 39 ＋20 ＋45 ＋32 ＋ 51 ＋ 32
＋ 35
＋13 ＋38 ＋23 ＋ 45 ＋23 ＋52 ＋37 ＋ 59 ＋ 37
＋ 40
＋15 ＋45 ＋27 ＋ 52 ＋27 ＋61 ＋43 ＋ 68 ＋ 43
＋ 46
＋17 ＋51 ＋31 ＋ 60 ＋31 ＋70 ＋50 ＋ 79 ＋ 50
＋ 52
＋20 ＋57 ＋34 ＋ 66 ＋34 ＋79 ＋56 ＋ 88 ＋ 56
＋ 57
＋21 ＋62 ＋37 ＋ 73 ＋37 ＋87 ＋62 ＋ 98 ＋ 62
＋ 63
＋23 ＋67 ＋40 ＋ 80 ＋40 ＋95 ＋68 ＋108 ＋ 68
＋ 70
＋26
−
−
＋ 88 ＋44
−
−
＋122 ＋ 78
＋ 80
＋30
−
−
＋100 ＋50
−
−
＋138 ＋ 88
＋ 90
＋34
−
−
＋112 ＋56
−
−
＋156 ＋100
＋106
＋40
−
−
＋132 ＋66
−
−
＋186 ＋120
＋126
＋48
−
−
＋156 ＋78
−
−
＋218 ＋140
r6
high
＋ 23
＋ 28
＋ 34
＋ 41
IT2
1.5
1.5
2
2.5
IT3
2.5
2.5
3
4
IT5
5
6
8
9
IT7
12
15
18
21
＋ 50 ＋ 34
＋ 59 ＋ 34
2.5
4
11
25
＋ 60
＋ 62
＋ 73
＋ 76
＋ 88
＋ 90
＋ 93
＋106
＋109
＋113
＋126
＋130
＋144
＋150
＋166
＋172
＋194
＋199
＋225
＋235
＋266
＋276
＋316
＋326
＋378
＋408
＋ 71
＋ 73
＋ 86
＋ 89
＋103
＋105
＋108
＋123
＋126
＋130
＋146
＋150
＋165
＋171
＋189
＋195
＋220
＋225
＋255
＋265
＋300
＋310
＋355
＋365
＋425
＋455
5
13
30
6
15
35
8
18
40
10
20
46
12
23
52
13
25
57
15
27
63
−
−
70
−
−
80
−
−
90
−
−
105
−
−
125
＋ 41
＋ 43
＋ 51
＋ 54
＋ 63
＋ 65
＋ 68
＋ 77
＋ 80
＋ 84
＋ 94
＋ 98
＋108
＋114
＋126
＋132
＋150
＋155
＋175
＋185
＋210
＋220
＋250
＋260
＋300
＋330
high
＋ 27
＋ 34
＋ 41
＋ 49
Basic tolerance
low
15
19
23
28
D-9
low
＋ 15
＋ 19
＋ 23
＋ 28
r7
＋
＋
＋
＋
＋ 41
3
＋ 43
＋ 51
＋ 54 4
＋ 63
＋ 65 5
＋ 68
＋ 77
＋ 80 7
＋ 84
＋ 94
8
＋ 98
＋108
9
＋114
＋126
10
＋132
＋150
−
＋155
＋175
−
＋185
＋210
−
＋220
＋250
−
＋260
＋300
−
＋330
Diameter division
mm
over
incl.
6
3
10
6
18
10
30
18
40
30
50
40
65
50
80
65
100
80
120
100
140
120
160
140
180
160
200
180
225
200
250
225
280
250
315
280
355
315
400
355
450
400
500
450
560
500
630
560
710
630
800
710
900
800
1 000
900
1 120
1 000
1 250
1 120
1 250
1 400
1 400
1 600
Unit μm
Diameter division
mm
over
incl.
3
6
6
10
10
18
18
30
30
40
40
50
50
65
65
80
80
100
100
120
120
140
140
160
160
180
180
200
200
225
225
250
250
280
280
315
315
355
355
400
400
450
450
500
560
500
630
560
710
630
800
710
900
800
1 000
900
1 120
1 000
1 250
1 120
1 400
1 250
1 600
1 400
●Appendix Table
Appendix table 6: Dimensional tolerance for housing bore
Diameter
division
mm
1
1
1
1
1
1
E7
E10
E11
low
high
low
high
low
high
G6
low
H6
G7
high
low
high
low high low
＋
＋
＋
＋
＋
＋
＋
＋
＋
＋
＋
＋
＋
＋
＋
＋
6
10
18
30
40
50
50
65
80
100
120
140
160
180
200
225
65
80
100
120
140
160
180
200
225
250
250
280
280
＋162 ＋110 ＋320 ＋110 ＋430 ＋110 ＋630 ＋110 ＋ 88 ＋ 56 ＋108 ＋ 56 ＋137 ＋ 56 ＋ 49 ＋17 ＋ 69 ＋17 ＋32 0
315
315
355
355 ＋182 ＋125 ＋355 ＋125 ＋485 ＋125
＋695 ＋125 ＋ 98 ＋ 62 ＋119 ＋ 62 ＋151 ＋ 62 ＋ 54 ＋18 ＋ 75 ＋18 ＋36 0
400
450
500
560
630
710
800
900
1 000
1 120
1 250
1 400
1 600
1 800
2 000
low
F8
incl.
400
450
500
560
630
710
800
900
000
120
250
400
600
800
high
F7
3
6
10
18
30
40
high
low
F6
over
high low
high
E12
＋ 8
＋ 9
＋11
＋13
0
0
0
0
＋ 75 ＋ 50 ＋150 ＋ 50 ＋210 ＋ 50 ＋300 ＋ 50 ＋ 41 ＋ 25 ＋ 50 ＋ 25 ＋ 64 ＋ 25 ＋ 25 ＋ 9 ＋ 34 ＋ 9 ＋16
0
＋ 90 ＋ 60 ＋180 ＋ 60 ＋250 ＋ 60 ＋360 ＋ 60 ＋ 49 ＋ 30 ＋ 60 ＋ 30 ＋ 76 ＋ 30 ＋ 29 ＋10 ＋ 40 ＋10 ＋19
0
＋107 ＋ 72 ＋212 ＋ 72 ＋292 ＋ 72 ＋422 ＋ 72 ＋ 58 ＋ 36 ＋ 71 ＋ 36 ＋ 90 ＋ 36 ＋ 34 ＋12 ＋ 47 ＋12 ＋22
0
＋
＋
＋
＋
32
40
50
61
＋
＋
＋
＋
＋ 68
＋ 83
＋102
＋124
20
25
32
40
＋
＋
＋
＋
20
25
32
40
＋ 95
＋115
＋142
＋170
＋
＋
＋
＋
20
25
32
40
＋140
＋175
＋212
＋250
＋
＋
＋
＋
20
25
32
40
＋
＋
＋
＋
＋
＋
＋
＋
18
22
27
33
10
13
16
20
＋
＋
＋
＋
22
28
34
41
＋
＋
＋
＋
10
13
16
20
＋
＋
＋
＋
28
35
43
53
＋
＋
＋
＋
10
13
16
20
12
14
17
20
4
5
6
7
16
20
24
28
4
5
6
7
＋125 ＋ 85 ＋245 ＋ 85 ＋335 ＋ 85 ＋485 ＋ 85 ＋ 68 ＋ 43 ＋ 83 ＋ 43 ＋106 ＋ 43 ＋ 39 ＋14 ＋ 54 ＋14 ＋25 0
＋146 ＋100 ＋285 ＋100 ＋390 ＋100 ＋560 ＋100 ＋ 79 ＋ 50 ＋ 96 ＋ 50 ＋122 ＋ 50 ＋ 44 ＋15 ＋ 61 ＋15 ＋29 0
＋198 ＋135 ＋385 ＋135 ＋535 ＋135 ＋765 ＋135 ＋108 ＋ 68 ＋131 ＋ 68 ＋165 ＋ 68 ＋ 60 ＋20 ＋ 83 ＋20 ＋40 0
＋215 ＋145
−
−
−
−
−
−
＋120 ＋ 76 ＋146 ＋ 76 ＋186 ＋ 76 ＋ 66 ＋22 ＋ 92 ＋22 ＋44 0
＋240 ＋160
−
−
−
−
−
−
＋130 ＋ 80 ＋160 ＋ 80 ＋205 ＋ 80 ＋ 74 ＋24 ＋104 ＋24 ＋50 0
＋260 ＋170
−
−
−
−
−
−
＋142 ＋ 86 ＋176 ＋ 86 ＋226 ＋ 86 ＋ 82 ＋26 ＋116 ＋26 ＋56 0
＋300 ＋195
−
−
−
−
−
−
＋164 ＋ 98 ＋203 ＋ 98 ＋263 ＋ 98 ＋ 94 ＋28 ＋133 ＋28 ＋66 0
＋345 ＋220
−
−
− −
−
−
＋188 ＋110 ＋235 ＋110 ＋305 ＋110 ＋108 ＋30 ＋155 ＋30 ＋78 0
＋390 ＋240
− −
−
−
−
−
＋212 ＋120 ＋270 ＋120 ＋350 ＋120 ＋124 ＋32 ＋182 ＋32 ＋92 0
Unit μm
Diameter
division
mm
over
incl. high low
3
6
10
18
30
40
50
65
80
100
120
140
160
6
10
18
30
40
50
65
80
100
120
140
160
180
180
200
225
K7
K6
＋2
＋2
＋2
＋2
− 6
− 7
− 9
−11
high
＋
＋
＋
＋
3
5
6
6
M6
low
− 9
− 10
− 12
− 15
high
−
−
−
−
1
3
4
4
M7
N7
N6
low
high
− 9
− 12
− 15
− 17
0
0
0
0
−
−
−
−
low
12
15
18
21
high
− 5
− 7
− 9
−11
low
−
−
−
−
13
16
20
24
high
−
−
−
−
4
4
5
7
P6
low
−
−
−
−
16
19
23
28
high
low
− 9
− 12
− 15
− 18
− 17
− 21
− 26
− 31
P7
R6
high low
− 8
− 9
− 11
− 14
−
−
−
−
20
24
29
35
high
−
−
−
−
12
16
20
24
low
− 20
− 25
− 31
− 37
R7
high
−
−
−
−
11
13
16
20
low
−
−
−
−
23
28
34
41
＋3 −13
＋ 7 − 18
− 4 − 20
0
− 25
−12 − 28
− 8 − 33 − 21 − 37 − 17 − 42 − 29 − 42 − 25 − 50
＋4 ー15
＋ 9 − 21
− 5 − 24
0
− 30
−14 − 33
− 9 − 39 − 26 − 45 − 21 − 51
＋4 ー18
＋10 − 25
− 6 − 28
0
− 35
−16 − 38
−10 − 45 − 30 − 52 − 24 − 59
＋4 −21
＋12 − 28
− 8
0 − 40 −20 − 45 − 12 − 52 − 36 − 61 − 28 − 68
200
225
250
＋5 −24
＋13 − 33
− 8 − 37
0 − 46
250
280
280
315
＋5 −27
＋16 − 36
− 9 − 41
0
− 52 −25 − 57 −14 − 66 − 47 − 79 − 36 − 88
315
355
400
450
500
560
630
710
355 ＋7 −29
400
450
−32
500 ＋8
560
0 −44
630
710
800 0 −50
＋17 − 40
−10 − 46
0
− 57 −26 − 62 −16 − 73 − 51 − 87 − 41 − 98
＋18 − 45
−10 − 50
0
− 63 −27 − 67 −17 − 80 − 55 − 95 − 45 −108
800
900
1 000
1 120
1 250
1 400
1 600
1 800
900
1 000
1 120
1 250
1 400
1 600
1 800
2 000
− 33
−22 − 51
−14 − 60 − 41 − 70 − 33 − 79
0
− 70
−26 − 70 −26 − 96 −44 − 88 −44 −114 − 78 −122 − 78 −148
0
− 80
−30 − 80 −30 −100 −50 −100 −50 −130 − 88 −138 − 88 −168
0
−56
0
− 90
−34 − 90 −34 − 124 −56 −112 −56 −146 −100 −156 −100 −190
0
−66
0
−105
−40 −106 −40 −145 −66 −132 −66 −171 −120 −186 −120 −225
0
−78
0
−125
−48 −126 −48 −173 −78 −156 −78 −203 −140 −213 −140 −265
0
−92
0
−150
−58 −150 −58 −208 −92 −184 −92 −242 −170 −262 −170 −320
D-10
− 35
− 37
− 44
− 47
− 56
− 58
− 61
− 68
− 71
− 75
− 85
− 89
− 97
−103
−113
−119
−150
−155
−175
−185
−210
−220
−250
−260
−300
−330
−370
−400
− 54
− 56
− 66
− 69
− 81
− 83
− 86
− 97
−100
−104
−117
−121
−133
−139
−153
−159
−194
−199
−225
−235
−266
−276
−316
−326
−378
−408
−462
−492
−
−
−
−
−
−
−
−
−
−
30
32
38
41
48
50
53
60
63
67
− 60
− 62
− 73
− 76
− 88
− 90
− 93
−106
−109
−113
− 74
− 78
− 87
− 93
−103
−109
−150
−155
−175
−185
−210
−220
−250
−260
−300
−330
−370
−400
−126
−130
−144
−150
−166
−172
−220
−225
−225
−265
−300
−310
−355
−365
−425
−455
−520
−550
●Appendix Table
Unit μm
H7
H8
H9
H10
H11
high low high low high low high low
＋
＋
＋
＋
12
15
18
21
0
0
0
0
＋
＋
＋
＋
18
22
27
33
0
0
0
0
＋
＋
＋
＋
30
36
43
52
0
0
0
0
＋
＋
＋
＋
48
58
70
84
0
0
0
0
H13
J6
Js6
high low high low high low
＋ 75
＋ 90
＋110
＋130
0
0
0
0
＋180
＋220
＋270
＋330
0
0
0
0
＋
＋
＋
＋
5
5
6
8
−3
−4
−5
−5
high
＋
＋
＋
＋
4
4.5
5.5
6.5
J7
low
−
−
−
−
4
4.5
5.5
6.5
− 8
Js7
high low
＋ 6
＋ 8
＋10
＋12
−
−
−
−
6
7
8
9
high
＋ 6
＋ 7.5
＋ 9
＋10.5
K5
low
high low
over
incl.
− 6
0 − 5
− 7.5 ＋1 − 5
− 9
＋2 − 6
−10.5 ＋1 − 8
3
6
10
18
30
40
50
65
80
100
120
140
160
180
200
225
250
280
315
355
6
10
18
30
40
50
65
80
100
120
140
160
180
200
225
250
280
315
355
400
400
450
500
560
630
710
800
900
000
120
250
400
600
800
450
500
560
630
710
800
900
000
120
250
400
600
800
000
＋ 25 0 ＋ 39 0 ＋ 62 0 ＋100 0
＋160 0 ＋390 0 ＋10 −6 ＋ 8
＋ 30 0 ＋ 46 0 ＋ 74 0 ＋120 0
＋190 0 ＋460 0 ＋13 −6 ＋ 9.5 − 9.5 ＋18 −12 ＋15
＋ 35 0 ＋ 54 0 ＋ 87 0 ＋140 0
＋220 0 ＋540 0 ＋16 −6 ＋11
＋ 40 0 ＋ 63 0 ＋100 0 ＋160 0
＋250 0 ＋630 0 ＋18 −7 ＋12.5 −12.5 ＋26 −14 ＋20
−20
＋3 −15
＋ 46 0 ＋ 72 0 ＋115 0 ＋185 0 ＋290 0 ＋720 0 ＋22 −7 ＋14.5 −14.5 ＋30 −16 ＋23
−23
＋2 −18
−26
＋3 −20
−11
＋14 −11 ＋12.5 −12.5 ＋2 − 9
−15
＋3 −10
＋22 −13 ＋17.5 −17.5 ＋2 −13
＋ 52 0 ＋ 81 0 ＋130 0 ＋210 0 ＋320 0 ＋810 0 ＋25 −7 ＋16
−16
＋36 −16 ＋26
＋ 57 0 ＋ 89 0 ＋140 0 ＋230 0 ＋360 0 ＋890 0 ＋29 −7 ＋18
−18
＋39 −18 ＋28.5 −28.5 ＋3 −22
＋ 63 0 ＋ 97 0 ＋155 0 ＋250 0 ＋400 0 ＋970 0 ＋33 −7 ＋20
−20
＋43 −20 ＋31.5 −31.5 ＋2 −25
＋ 70 0 ＋110 0 ＋175 0 ＋280 0 ＋440 0
−
0
−
−
＋22
−22
−
−
＋35
−35
−
−
＋ 80 0 ＋125 0 ＋200 0 ＋320 0 ＋500 0
−
0
−
−
＋25
−25
−
−
＋40
−40
−
−
＋ 90 0 ＋140 0 ＋230 0 ＋360 0 ＋560 0
−
0
−
−
＋28
−28
−
−
＋45
−45
−
−
＋105 0 ＋165 0 ＋260 0 ＋420 0 ＋660 0
−
0
−
−
＋33
−33
−
−
＋52.5 −52.5
−
−
＋125 0 ＋195 0 ＋310 0 ＋500 0 ＋780 0
−
0
−
−
＋39
−39
−
−
＋62.5 −62.5
−
−
＋150 0 ＋230 0 ＋370 0 ＋600 0 ＋920 0
−
0
−
−
＋46
−46
−
−
＋75
−
−
D-11
Diameter
division
mm
−75
1
1
1
1
1
1
1
1
1
1
1
1
2
●Appendix Table
Appendix table 7: Basic tolerance
Unit μm
Diameter division
IT basic tolerance class
mm
over
incl.
IT1
IT2
IT3
IT4
IT5
IT6
IT7
IT8
IT9
IT10
3
6
3
6
10
0.8
1
1
1.2
1.5
1.5
2
2.5
2.5
3
4
4
4
5
6
6
8
9
10
12
15
14
18
22
25
30
36
40
48
58
10
18
30
18
30
50
1.2
1.5
1.5
2
2.5
2.5
3
4
4
5
6
7
8
9
11
11
13
16
18
21
25
27
33
39
43
52
62
70
84
100
50
80
120
80
120
180
2
2.5
3.5
3
4
5
5
6
8
8
10
12
13
15
18
19
22
25
30
35
40
46
54
63
74
87
100
120
140
160
180
250
315
250
315
400
4.5
6
7
7
8
9
10
12
13
14
16
18
20
23
25
29
32
36
46
52
57
72
81
89
115
130
140
185
210
230
400
500
630
500
630
800
8
9
10
10
11
13
15
16
18
20
22
25
27
30
35
40
44
50
63
70
80
97
110
125
155
175
200
250
280
320
800
1 000
1 250
1 000
1 250
1 600
11
13
15
15
18
21
21
24
29
29
34
40
40
46
54
56
66
78
90
105
125
140
165
195
230
260
310
360
420
500
1 600
2 000
2 500
2 000
2 500
3 150
18
22
26
25
30
36
35
41
50
48
57
69
65
77
93
92
110
135
150
175
210
230
280
330
370
440
540
600
700
860
―
D-12
●Appendix Table
Appendix table 8: Viscosity conversion table
Kinematic
viscosity
mm2/s
Saybolt
SUS (second)
2.7
4.3
5.9
7.4
8.9
35
40
45
50
55
32.2
36.2
40.6
44.9
49.1
1.18
1.32
1.46
1.60
1.75
103
108
119
130
141
475
500
550
600
650
419
441
485
529
573
13.5
14.2
15.6
17.0
18.5
10.4
11.8
13.1
14.5
15.8
60
65
70
75
80
53.5
57.9
62.3
67.6
71.0
1.88
2.02
2.15
2.31
2.42
152
163
173
184
195
700
750
800
850
900
617
661
705
749
793
19.9
21.3
22.7
24.2
25.6
17.0
18.2
19.4
20.6
23.0
85
90
95
100
110
75.1
79.6
84.2
88.4
97.1
2.55
2.68
2.81
2.95
3.21
206
217
260
302
347
950
1 000
1 200
1 400
1 600
837
882
1 058
1 234
1 411
27.0
28.4
34.1
39.8
45.5
25.0
27.5
29.8
32.1
34.3
120
130
140
150
160
105.9
114.8
123.6
132.4
141.1
3.49
3.77
4.04
4.32
4.59
390
433
542
650
758
1 800
2 000
2 500
3 000
3 500
1 587
1 763
2 204
2 646
3 087
51
57
71
85
99
36.5
38.8
41.0
43.2
47.5
170
180
190
200
220
150.0
158.8
167.5
176.4
194.0
4.88
5.15
5.44
5.72
6.28
867
974
1 082
1 150
1 300
4 000
4 500
5 000
5 500
6 000
3 526
3 967
4 408
4 849
5 290
114
128
142
156
170
51.9
56.5
60.5
64.9
70.3
240
260
280
300
325
212
229
247
265
287
6.85
7.38
7.95
8.51
9.24
1
1
1
1
1
400
510
630
740
850
6 500
7 000
7 500
8 000
8 500
5 730
6 171
6 612
7 053
7 494
185
199
213
227
242
75.8
81.2
86.8
92.0
97.4
350
375
400
425
450
309
331
353
375
397
9.95
10.7
11.4
12.1
12.8
1 960
2 070
2 200
9 000
9 500
10 000
7 934
8 375
8 816
256
270
284
Redwood
R"(second)
Kinematic
viscosity
mm2/s
Engler
E (degree)
D-13
Saybolt
SUS (second)
Redwood
R"(second)
Engler
E (degree)
●Appendix Table
Appendix table 9: Kgf to N conversion table
kgf
N
kgf
N
kgf
N
0.1020
0.2039
0.3059
0.4079
0.5099
1
2
3
4
5
9.8066
19.613
29.420
39.227
49.033
3.4670
3.5690
3.6710
3.7730
3.8749
34
35
36
37
38
333.43
343.23
353.04
362.85
372.65
6.8321
6.9341
7.0361
7.1380
7.2400
67
68
69
70
71
657.04
666.85
676.66
686.46
696.27
0.6118
0.7138
0.8158
0.9177
1.0197
6
7
8
9
10
58.840
68.646
78.453
88.260
98.066
3.9769
4.0789
4.1808
4.2828
4.3848
39
40
41
42
43
382.46
392.27
402.07
411.88
421.68
7.3420
7.4440
7.5459
7.6479
7.7499
72
73
74
75
76
706.08
715.88
725.69
735.50
745.30
1.1217
1.2237
1.3256
1.4276
1.5296
11
12
13
14
15
107.87
117.68
127.49
137.29
147.10
4.4868
4.5887
4.6907
4.7927
4.8946
44
45
46
47
48
431.49
441.30
451.10
460.91
470.72
7.8518
7.9538
8.0558
8.1578
8.2597
77
78
79
80
81
755.11
764.92
774.72
784.53
794.34
1.6316
1.7335
1.8355
1.9375
2.0394
16
17
18
19
20
156.91
166.71
176.52
186.33
196.13
4.9966
5.0986
5.2006
5.3025
5.4045
49
50
51
52
53
480.52
490.33
500.14
509.94
519.75
8.3617
8.4637
8.5656
8.6676
8.7696
82
83
84
85
86
804.14
813.95
823.76
833.56
843.37
2.1414
2.2434
2.3454
2.4473
2.5493
21
22
23
24
25
205.94
215.75
225.55
235.36
245.17
5.5065
5.6085
5.7104
5.8124
5.9144
54
55
56
57
58
529.56
539.36
549.17
558.98
568.78
8.8716
8.9735
9.0755
9.1775
9.2794
87
88
89
90
91
853.18
862.98
872.79
882.60
892.40
2.6513
2.7532
2.8552
2.9572
3.0592
26
27
28
29
30
254.97
264.78
274.59
284.39
294.20
6.0163
6.1183
6.2203
6.3223
6.4242
59
60
61
62
63
578.59
588.40
598.20
608.01
617.82
9.3814
9.4834
9.5854
9.6873
9.7893
92
93
94
95
96
902.21
912.02
921.82
931.63
941.44
3.1611
3.2631
3.3651
31
32
33
304.01
313.81
323.62
6.5262
6.6282
6.7302
64
65
66
627.62
637.43
647.24
9.8913
9.9932
10.0952
97
98
99
951.24
961.05
970.86
〔How to read the table〕 If for example you want to convert 10 kgf to N, find "10" in the middle
column of the first set of columns on the right. Look in the N column
directly to the right of "10," and you will see that 10 kgf equals 98.066
N. Oppositely, to convert 10 N to kgf, look in the kgf column to the
right of "10" and you will see that 10 N equals 1.0197 kgf.
D-14
1kgf＝9.80665N
1N＝0.101972kgf
●Appendix Table
Appendix table 10: Inch-millimetre conversion table
inch
fraction
decimal
1/64
1/32
3/64
1/16
5/64
3/32
7/64
1/ 8
9/64
5/32
11/64
3/16
13/64
7/32
15/64
1/ 4
17/64
9/32
19/64
5/16
21/64
11/32
23/64
3/ 8
25/64
13/32
27/64
7/16
29/64
15/32
31/64
1/ 2
33/64
17/32
35/64
9/16
37/64
19/32
39/64
5/ 8
41/64
21/32
43/64
11/16
45/64
23/32
47/64
3/ 4
49/64
25/32
51/64
13/16
53/64
27/32
55/64
7/ 8
57/64
39/32
59/64
15/16
61/64
31/32
63/64
0.015625
0.031250
0.046875
0.062500
0.078125
0.093750
0.109375
0.125000
0.140625
0.156250
0.171875
0.187500
0.203125
0.218750
0.234375
0.250000
0.265625
0.281250
0.296875
0.312500
0.328125
0.343750
0.359375
0.375000
0.390625
0.406250
0.421875
0.437500
0.453125
0.468750
0.484375
0.500000
0.515625
0.531250
0.546875
0.562500
0.578125
0.593750
0.609375
0.625000
0.640625
0.656250
0.671875
0.687500
0.703125
0.718750
0.734375
0.750000
0.765625
0.781250
0.796875
0.812500
0.828125
0.843750
0.859375
0.875000
0.890625
0.906250
0.921875
0.937500
0.953125
0.968750
0.984375
0"
0.397
0.794
1.191
1.588
1.984
2.381
2.778
3.175
3.572
3.969
4.366
4.762
5.159
5.556
5.953
6.350
6.747
7.144
7.541
7.938
8.334
8.731
9.128
9.525
9.922
10.319
10.716
11.112
11.509
11.906
12.303
12.700
13.097
13.494
13.891
14.288
14.684
15.081
15.478
15.875
16.272
16.669
17.066
17.462
17.859
18.256
18.653
19.050
19.447
19.844
20.241
20.638
21.034
21.431
21.828
22.225
22.622
23.019
23.416
23.812
24.209
24.606
25.003
1"
25.400
25.797
26.194
26.591
26.988
27.384
27.781
28.178
28.575
28.972
29.369
29.766
30.162
30.559
30.956
31.353
31.750
32.147
32.544
32.941
33.338
33.734
34.131
34.528
34.925
35.322
35.719
36.116
36.512
36.909
37.306
37.703
38.100
38.497
38.894
39.291
39.688
40.084
40.481
40.878
41.275
41.672
42.069
42.466
42.862
43.259
43.656
44.053
44.450
44.847
45.244
45.641
46.038
46.434
46.831
47.228
47.625
48.022
48.419
48.816
49.212
49.609
50.006
50.403
2"
50.800
51.197
51.594
51.991
52.388
52.784
53.181
53.578
53.975
54.372
54.769
55.166
55.562
55.959
56.356
56.753
57.150
57.547
57.944
58.341
58.738
59.134
59.531
59.928
60.325
60.722
61.119
61.516
61.912
62.309
62.706
63.103
63.500
63.897
64.294
64.691
65.088
65.484
65.881
66.278
66.675
67.072
67.469
67.866
68.262
68.659
69.056
69.453
69.850
70.247
70.644
71.041
71.438
71.834
72.231
72.628
73.025
73.422
73.819
74.216
74.612
75.009
75406
75.803
3"
76.200
76.597
76.994
77.391
77.788
78.184
48.581
78.978
79.375
79.772
80.169
80.566
80.962
81.359
81.756
82.153
82.550
82.947
83.344
83.741
84.138
84.534
84.931
85.328
85.725
86.122
86.519
86.916
87.312
87.709
88.106
88.503
88.900
89.297
89.694
90.091
90.488
90.884
91.281
91.678
92.075
92.472
92.869
93.266
93.662
94.059
94.456
94.853
95.250
95.647
96.044
96.441
96.838
97.234
97.631
98.028
98.425
98.822
99.219
99.616
100.012
100.409
100.806
101.203
4"
101.600
101.997
102.394
102.791
103.188
103.584
103.981
104.378
104.775
105.172
105.569
105.966
106.362
106.759
107.156
107.553
107.950
108.347
108.744
109.141
109.538
109.934
110.331
110.728
111.125
111.522
111.919
112.316
112.721
113.109
113.506
113.903
114.300
114.697
115.094
115.491
115.888
116.284
116.681
117.078
117.475
117.872
118.269
118.666
119.062
119.459
119.856
120.253
120.650
121.047
121.444
121.841
122.238
122.634
123.031
123.428
123.825
124.222
124.619
125.016
125.412
125.809
126.206
126.603
D-15
5"
127.000
127.397
127.794
128.191
128.588
128.984
129.381
129.778
130.175
130.572
130.969
131.366
131.762
132.159
132.556
132.953
133.350
133.747
134.144
134.541
134.938
135.334
135.731
136.128
136.525
136.922
137.319
137.716
138.112
138.509
138.906
139.303
139.700
140.097
140.494
140.891
141.283
141.684
142.081
142.478
142.875
143.272
143.669
144.066
144.462
144.859
145.256
145.653
146.050
146.447
146.844
147.241
147.638
148.034
148.431
148.828
149.225
149.622
150.019
150.416
150.812
151.209
151.606
152.003
6"
152.400
152.797
153.194
153.591
153.988
154.384
154.781
155.178
155.575
155.972
156.369
156.766
157.162
157.559
157.956
158.353
158.750
159.147
159.544
159.941
160.338
160.734
161.131
161.528
161.925
162.322
162.719
163.116
163.512
163.909
164.306
164.703
165.100
165.497
165.894
166.291
166.688
167.084
167.481
167.878
168.275
168.672
169.069
169.466
169.862
170.259
170.656
171.053
171.450
171.847
172.244
172.641
173.038
173.434
173.831
174.228
174.625
175.022
175.419
175.816
176.212
176.609
177.006
177.403
7"
177.800
178.197
178.594
178.991
179.388
179.784
180.181
180.578
180.975
181.372
181.769
182.166
182.562
182.959
183.356
183.753
184.150
184.547
184.944
185.341
185.738
186.134
186.531
186.928
187.325
187.722
188.119
188.516
188.912
189.309
189.706
190.103
190.500
190.897
191.294
191.691
192.088
192.484
192.881
193.278
193.675
194.072
194.469
194.866
195.262
195.659
196.056
196.453
196.850
197.247
197.644
198.041
198.438
198.834
199.231
199.628
200.025
200.422
200.819
201.216
201.612
202.009
202.406
202.803
8"
203.200
203.597
203.994
204.391
204.788
205.184
205.581
205.978
206.375
206.772
207.169
207.566
207.962
208.359
208.756
209.153
209.550
209.947
210.344
210.741
211.138
211.534
211.931
212.328
212.725
213.122
213.519
213.916
214.312
214.709
215.106
215.503
215.900
216.297
216.694
217.091
217.488
217.884
218.281
218.678
219.075
219.472
219.869
220.266
220.662
221.056
221.456
221.853
222.250
222.647
223.044
223.441
223.838
224.234
224.631
225.028
225.425
225.822
226.219
226.616
227.012
227.409
227.806
228.203
9"
228.600
228.997
229.394
229.791
230.188
230.584
230.981
231.378
231.775
232.172
232.569
232.966
233.362
233.759
234.156
234.553
234.950
235.347
235.744
236.141
236.538
236.934
237.331
237.728
238.125
238.522
238.919
239.316
239.712
240.109
240.506
240.903
241.300
241.697
242.094
242.491
242.888
243.284
243.681
244.078
244.475
244.872
245.269
245.666
246.062
246.459
246.856
247.253
247.650
248.047
248.444
248.841
249.238
249.634
250.031
250.428
250.825
251.222
251.619
252.016
252.412
252.809
253.206
253.603
●Appendix Table
Appendix table 11: Hardness conversion table (reference)
Rockwell hardness
Brinell hardness
C scale
1471.0N {150kgf}
Picker's hardness
68
67
66
940
900
865
65
64
63
62
61
832
800
772
746
720
60
59
58
57
56
697
674
653
633
613
55
54
53
52
51
595
577
560
544
528
50
49
48
47
46
Standard
steel balls
Rockwell hardness
Tungsten carbide
steel balls
A scale
588.4N {60kgf}
B scale
980.7N {100kgf}
Shore hardness
85.6
85.0
84.5
97
95
92
739
722
705
688
670
83.9
83.4
82.8
82.3
81.8
91
88
87
85
83
654
634
615
595
577
81.2
80.7
80.1
79.6
79.0
81
80
78
76
75
―
―
―
500
487
560
543
525
512
496
78.5
78.0
77.4
76.8
76.3
74
72
71
69
68
513
498
484
471
458
475
464
451
442
432
481
469
455
443
432
75.9
75.2
74.7
74.1
73.6
67
66
64
63
62
45
44
43
42
41
446
434
423
412
402
421
409
400
390
381
421
409
400
390
381
73.1
72.5
72.0
71.5
70.9
60
58
57
56
55
40
39
38
37
36
392
382
372
363
354
371
362
353
344
336
371
362
353
344
336
70.4
69.9
69.4
68.9
68.4
―
―
―
―
(109.0)
54
52
51
50
49
35
34
33
32
31
345
336
327
318
310
327
319
311
301
294
327
319
311
301
294
67.9
67.4
66.8
66.3
65.8
(108.5)
(108.0)
(107.5)
(107.0)
(106.0)
48
47
46
44
43
30
29
28
27
26
302
294
286
279
272
286
279
271
264
258
286
279
271
264
258
65.3
64.7
64.3
63.8
63.3
(105.5)
(104.5)
(104.0)
(103.0)
(102.5)
42
41
41
40
38
25
24
23
22
21
266
260
254
248
243
253
247
243
237
231
253
247
243
237
231
62.8
62.4
62.0
61.5
61.0
(101.5)
(101.0)
100.0
99.0
98.5
38
37
36
35
35
20
(18)
(16)
(14)
(12)
238
230
222
213
204
226
219
212
203
194
226
219
212
203
194
60.5
―
―
―
―
97.8
96.7
95.5
93.9
92.3
34
33
32
31
29
(10)
( 8)
( 6)
( 4)
( 2)
( 0)
196
188
180
173
166
160
187
179
171
165
158
152
187
179
171
165
158
152
90.7
89.5
87.1
85.5
83.5
81.7
28
27
26
25
24
24
Note 1: Quoted from hardness conversion table (SAE J417)
D-16
●Appendix Table
Appendix table 12: Greek alphabet list
Upright
Italic
Reading
Upper case
Upper case Lower case
Α
Α
α
Alpha
Β
Β
β
Beta
Γ
Γ
γ
Gamma
Δ
Δ
δ
Delta
Ε
Ε
ε
Epsilon
Ζ
Ζ
ζ
Zeta
Η
Η
η
Eta
Θ
Θ
θ
Theta
Ι
Ι
ι
Iota
Κ
Κ
κ
Kappa
Λ
Λ
λ
Lambda
Μ
Μ
μ
Mu
Ν
Ν
ν
Nu
Ξ
Ξ
ξ
Xi
Ο
Ο
ο
Omicron
Π
Π
π
Pi
Ρ
Ρ
ρ
Rho
Σ
Σ
σ
Sigma
Τ
Τ
τ
Tau
Υ
Υ
υ
Upsolon
Φ
Φ
φ
Phi
Χ
Χ
χ
Khi
Ψ
Ψ
ψ
Psi
Ω
Ω
ω
Omega
D-17