SKF Explorer
Angular Contact Ball Bearings
ground transition raceway/shoulder
upgraded balls
improved
polyamide/
brass cage
• forged blanks
• universal matchable,
for right clearance or preload
• improved running accuracy
to ISO P5
• ultra-clean steel
• unique heat treatment process,
new standard grease
laser marking
rings stabilized to 150 °C
• improved dimensional accuracy
to ISO P6
• improved surface cleanliness
• new manufacturing
methodologies (ISO/TS 16949)
• environmental friendly preservative
• ground transition raceway/shoulder
• improved running accuracy
to ISO P6
• most rings cold rolled
• 30° contact angle
upgraded balls
new crown cage
new shields
Improved raceway shoulder contact
Ground transition
raceway/
shoulder
Product benefits
Customer benefits
• Higher thrust load capability
• Lower contact stresses
• Reduced edge stresses
• Increased power density,
Upgraded balls
Product benefits
Customer benefits
Balls of at least one ISO grade
better
• Improved running accuracy
• Higher speed rating
• Reduced vibration
• Reduced noise
• Extended service life
higher load rating,
increased thrust load
capability
• Higher safety factor
• Extended service life
Upgraded balls
Improved polyamide cage
Improved
polyamide
cage
Product benefits
Customer benefits
• Better ball guidance
• Lower friction
• Lower mass/lower inertia
• Stronger design
• Optimized number of balls
• Lower heat generation
• Higher speed rating
• Higher acceleration
• Higher safety factor
• Extended service life
Improved machined brass cage
Improved machined brass cage
Product benefits
Customer benefits
• Improved cage/ball contact
• Lower imbalance forces
• Better surface roughness,
• Reduced vibration
• Reduced noise
• Lower heat generation
• Extended service life
especially cage pockets
• Cleaner cage surface
• Smoother running
Bearings for universal matching
Bearings for universal matching
Product benefits
Customer benefits
CA, CB, CC, GA, GB, GC
CB and GA are standard
executions for
clearance and
preload
• Two or more bearings can
• Easier and safer handling
always be matched together
• Equal load sharing
• Fix predetermined clearance
or preload
and mounting
• Reduced inventory
• Extended service life
Product benefits
Customer benefits
• Extremely clean and
• Made of steel with an
homogenous steel
• Reduced oxygen level
content
• Improved steel quality
absolute minimum of
inclusions
• Increased bearing
service life
• Reduced possibility of
fatigue failure
Product benefits
Customer benefits
• Maximum operating
• Increased safety factor at
Material development
Steel quality
Bearing steel process development
1970
1980
1990
New heat treatment
S0 standard
heat treatment
temperature of +150 °C
• Minimum dimensional
changes
• Constant predetermined
clearance or preload also
after 10 000 hours at 110 °C
unchanged design
• Longer service intervals
• Increased machine uptime
• Increased power density
• Extended service life
New crown cage
New
crown cage
Product benefits
Customer benefits
• Better ball guidance
• Better lubrication film
• Higher speed rating
• Reduced vibration
• Reduced noise
• Higher safety factor
• Lower heat generation
• Extended service life
formation
• Lower friction
Improved running and dimensional accuracy
Improved running accuracy
Product benefits
Customer benefits
Single row
Defined as ISO P5
Double row
Defined as ISO P6
• Better precision class
• Narrower tolerances
• Reduction of the runout of
• Reduced vibration
• Lower heat generation
• Longer service intervals
• Higher speed capability
• Extended service life
about 30 %
Improved dimensional accuracy
Single and double row
Defined as ISO P6
New shield
New shield
Product benefits
Customer benefits
• Better shielding function,
• Less maintenance
• Lower heat generation
• Higher safety factor
• Reduced noice
• Extended service life
less dirt ingress
• Better grease retention
• Better performance on
vertical shaft applications
• Improved anchorage
SKF Explorer Angular Contact Ball Bearings
The New Performance Class → Extended Service Life
® SKF is a registered trademark of the
SKF Group.
For further information see www.skf.com/explorer or please contact:
© Copyright SKF 2003
The contents of this publication are the copyright
of the publisher and may not be reproduced (even
extracts) unless permission is granted. Every care
has been taken to ensure the accuracy of the
information contained in this publication but no
liability can be accepted for any loss or damage
whether direct, indirect or consequential arising
out of the use of the information contained herein.
Publication 5341 E
Printed in Sweden on environmentally friendly,
chlorine-free paper (Multiart Silk) by SG tryck ab.
R