Angular Contact Ball Bearings
●Angular Contact Ball Bearings
1. Structure and Characteristics
1. 1 Single row angular contact ball bearings /
duplex angular contact ball bearings
contact ball bearings is shown in Table 1.
Cage types and special features of single and multi–row
angular contact ball bearings are show in Fig.1. Drawings A
through F feature the inner ring guide cage. Drawings B
and C illustrate cages with lubrication ports. Drawings D
and E feature a rolling element guide cage: E also shows
the cage with a lubrication port. Note that the inner ring
width in drawing F is larger than that of the outer ring.
A line connecting the contact points of both the ball and
inner ring and ball and outer ring forms an angle to a line
drawn radially: that angle is called the contact angle.
An angular contact ball bearing, while designed for radial
loads, can accommodate single direction axial loads. Under
radial loads and the resulting axial force component, the
bearings are generally used in a duplex arrangement. More
information on types and characteristics of duplexed angular
Table 1 Duplex angular contact ball bearings
Arrangement type
Back-to-back
duplex arrangement
(Code: DB)
Characteristics
These bearings support
the radial loads and both
direction of axial loads.
r
Face-to-face
duplex arrangement
(Code: DF)
r
¡Since the distance "l" between the cone pressure apexes of bearing is large,
the load capacity of the moment load is high.
¡Permissible slant angle is small.
¡The distance "l" between the cone pressure apexes of bearing is small in
comparison with the back-to-back duplex arrangement, the load capacity of
the moment load is low.
¡Permissible slant angle is larger than the back-to-back duplex arrangement type.
Notes: 1. Since the bearings are manufactured in a set to adjust for the internal clearance or pre-loading, parts with same serial number must be
used for assembly.
2. Combination of more than 3 bearings may occur. Please consult NTN Engineering for details.
A
B
C
D
E
F
Fig.1 Single row/duplex angular contact ball bearings
B-15
●Angular Contact Ball Bearings
1. 2 Double row angular contact ball bearings
Two single row angular contact ball bearings when
duplexed back-to-back (DB) so that the inner ring forms one
piece are used to create double row angular contact ball
bearings. Alternatively, the bearings may be duplexed faceto-face (DF) with the outer ring as one piece.
These bearings support radial and axial loads in either
direction: back-to-back duplexed bearings also support
moment loads.
A
B
C
The cage type and special shape of the double row
angular contact ball bearings are shown in Fig.2 with the list
of drawing numbers in the dimensions table.
The drawings A and B are the front-to-front duplex
arrangement; drawing 2 is a bearing with a lubricating port;
drawings from C to G show the back-to-back duplex
arrangement and the different position of the lubricating
ports whether or not there are lubricating grooves. Drawing
C shows the inner ring width larger than that of outer ring.
D
E
F
G
Fig.2 Double row angular contact ball bearings drawing
2. Dimensional Accuracy/Rotation Accuracy
5. Cautions for Operation
When the bearing loads are small(about Fr ≦ 0.02Cor) or
the ratio between the axial and radial loads of the duplex
bearing exceeds the value "e", slippage may occur between
the balls and the raceways. This slippage may cause
smearing. Particularly with large size angular contact ball
bearings, this tendency is significant since the ball and cage
mass is large. Please consult with NTN Engineering for
further details.
Refer to Table 3.3 (Page A-12)
Single row/Duplex angular contact ball bearings
Double row angular contact ball bearings
3. Recommended Fitting
Refer to Table 4.2 (Page A-24)
Single row/Duplex angular contact ball bearings
Double row angular contact ball bearings
4. Bearing Internal Clearance
Refer to Table 5.3 (Page A-31)
Duplex angular contact ball bearings
Double row angular contact ball bearings
B-16
●Angular Contact Ball Bearings
B-17
●Angular Contact Ball Bearings (Single, Duplex)
B
2B
r
r1
r
r
φD
2B
ra
ra
φd
φda
φDa
a
a
back-to-back
arrangement
(DB)
face-to-face
arrangement
(DF)
a
single
d 100∼130mm
Boundary dimensions
contact
angle
dynamic
mm
Basic load ratings
static
dynamic
static
single
kN
kgf
Cor
Cr
Cor
Bearing Drawing1 Load
numbers No.
center
single
mm
a
Mass
single
kg
D
B
C
rs min2 rls min2
α
Cr
100
125
140
150
150
180
180
215
215
13
20
24
24
34
34
47
47
−
−
−
−
−
−
−
−
1
1.1
1.5
1.5
2.1
2.1
3
3
0.6
0.6
1
1
1.1
1.1
1.1
1.1
30
30
30
40
30
40
30
40
21.2
48.0
68.5
61.0
144
130
207
190
25.2
52.5
70.5
63.5
126
114
193
178
2,160
4,900
6,950
6,250
14,700
13,300
21,100
19,400
2,570
5,350
7,200
6,500
12,800
11,700
19,700
18,100
7820
7920
7020
7020B
7220
7220B
7320
7320B
A
A
A
A
A
A
A
A
39
44.5
48
64.5
57.5
76
69
89.5
0.36
0.93
1.47
1.49
3.2
3.26
7.18
7.32
105
130
145
160
160
190
190
225
225
13
20
26
26
36
36
49
49
−
−
−
−
−
−
−
−
1
1.1
2
2
2.1
2.1
3
3
0.6
0.6
1
1
1.1
1.1
1.1
1.1
30
30
30
40
30
40
30
40
21.7
48.5
80.0
71.5
157
142
220
202
26.5
54.5
81.5
73.5
142
129
210
194
2,210
4,950
8,150
7,300
16,000
14,500
22,400
20,600
2,700
5,550
8,350
7,500
14,400
13,100
21,500
19,700
7821
7921
7021
7021B
7221
7221B
7321
7321B
A
A
A
A
A
A
A
A
40.5
46
51.5
68.6
60.5
80
72
93.5
0.37
0.97
1.86
1.88
3.79
3.87
8.2
8.36
110
140
150
170
170
200
200
240
240
16
20
28
28
38
38
50
50
−
−
−
−
−
−
−
−
1
1.1
2
2
2.1
2.1
3
3
0.6
0.6
1
1
1.1
1.1
1.1
1.1
30
30
30
40
30
40
30
40
31.0
49.5
92.0
82.5
170
154
246
226
38.0
56.0
93.0
83.5
158
144
246
226
3,200
5,050
9,350
8,400
17,300
15,700
25,100
23,000
3,850
5,700
9,450
8,550
16,100
14,700
25,100
23,100
7822
7922
7022
7022B
7222
7222B
7322
7322B
A
A
A
A
A
A
A
A
44
47.5
54.5
72.8
64
84
76
99
0.58
1.01
2.3
2.34
4.45
4.54
9.6
9.8
120
150
165
180
180
215
215
260
260
16
22
28
28
40
40
55
55
−
−
−
−
−
−
−
−
1
1.1
2
2
2.1
2.1
3
3
0.6
0.6
1
1
1.1
1.1
1.1
1.1
30
30
30
40
40
30
30
40
31.5
61.0
93.5
84.0
165
183
246
225
40.0
69.5
98.5
89.0
162
177
252
231
3,250
6,200
9,550
8,550
16,900
18,600
25,100
23,000
4,050
7,100
10,000
9,050
16,500
18,100
25,700
23,600
7824
7924
7024
7024B
7224B
7224
7324
7324B
A
A
A
A
A
A
A
A
47
52
57.5
77
90.5
68.5
82.5
107
0.63
1.66
2.47
2.51
6.26
6.26
14.7
14.7
130
165
180
199.5
18
24
33
−
−
−
1.1
1.5
2.5
0.6
1
1
30
30
30
42.0
75.0
117
53.0
87.5
125
4,300
7,650
12,000
5,400
8,900
12,900
7826
7926
SF2652
A
A
A
51.5
56.5
64
0.91
1.82
3.74
d
1 Drawing details are shown in Page B-15.
2 Smallest allowable dimension for chamfer dimension r or r1.
B-18
(approx.)
●Angular Contact Ball Bearings (Single, Duplex)
r1a
ra
Equivalent bearing load
dynamic
Pr＝XFr＋YFa
ra
ra
Contact
angle
φda
φDb
30˚ 0.80
40˚ 1.14
φda
φDa
Single
DB, DF
Fa / Fr≦e Fa / Fr＞e Fa / Fr≦e Fa / Fr＞e
X
Y
X
Y
X
Y
X
Y
e
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
Por＝Xo Fr＋Yo Fa
Contact
angle
Xo
Yo
Xo
30˚
40˚
0.5
0.5
0.33
0.26
1
1
Single
DB, DF
For single, When Por＜Fr use Por＝Fr
dynamic
Cr
Basic load ratings
static
dynamic
static
(duplex)
KN
kgf
Cor
Cr
Cor
Bearing
numbers
(duplex)
DB
DF
Load
center
mm
a
DB
DF
da
min
Abutment and
fillet dimensions
mm
Da
ras
rlas
max
max
max
34.0
78.0
111
76.5
233
212
335
310
50.5
105
141
127
251
229
385
355
3,500
7,950
11,300
10,100
23,800
21,600
34,500
31,500
5,150
10,700
14,400
13,000
25,600
23,300
39,500
36,000
DB
DB
DB
DB
DB
DB
DB
DB
DF
DF
DF
DF
DF
DF
DF
DF
78
109
120
129
149
186
185
226
52
69
72
81
81
118
91
132
105.5
107
108.5
108.5
112
112
114
114
119.5
133
141.5
141.5
168
168
201
201
1
1
1.5
1.5
2
2
2.5
2.5
0.6
0.6
1
1
1
1
1
1
35.0
79.0
130
116
254
231
355
330
53.0
109
163
147
283
258
420
385
3,600
8,050
13,300
11,900
25,900
23,500
36,500
33,500
5,400
11,100
16,700
15,000
28,900
26,300
43,000
39,500
DB
DB
DB
DB
DB
DB
DB
DB
DF
DF
DF
DF
DF
DF
DF
DF
81
112
129
137
157
196
193
236
55
72
77
85
85
124
95
138
110.5
112
115
115
117
117
119
119
124.5
138
150
150
178
178
211
211
1
1
2
2
2
2
2.5
2.5
0.6
0.6
1
1
1
1
1
1
50.5
80.0
149
134
276
250
400
365
76.0
112
186
167
315
289
490
455
5,150
8,150
15,200
13,600
28,100
25,500
41,000
37,500
7,750
11,400
18,900
17,100
32,500
29,400
50,000
46,000
DB
DB
DB
DB
DB
DB
DB
DB
DF
DF
DF
DF
DF
DF
DF
DF
88
115
137
145.5
166
206
202
248
56
75
81
89.5
90
130
102
148
115.5
117
120
120
122
122
124
124
134.5
143
160
160
188
188
226
226
1
1
2
2
2
2
2.5
2.5
0.6
0.6
1
1
1
1
1
1
51.5
99.0
152
136
269
297
400
365
79.5
139
197
178
325
355
505
460
5,250
10,100
15,500
13,900
27,400
30,500
41,000
37,500
8,100
14,200
20,100
18,100
33,000
36,000
51,500
47,000
DB
DB
DB
DB
DB
DB
DB
DB
DF
DF
DF
DF
DF
DF
DF
DF
94
126
143
154
221
177
220
269
62
82
87
98
141
97
110
159
125.5
127
130
130
132
132
134
134
144.5
158
170
170
203
203
246
246
1
1
2
2
2
2
2.5
2.5
0.6
0.6
1
1
1
1
1
1
68.5
121
191
106
175
251
6,950
12,400
19,400
10,800
17,800
25,600
DB
DB
DB
DF
DF
DF
103
137
128.5
137
138.5
142
158
171.5
187.5
1
1.5
2
0.6
1
1
B-19
67
89
62.5
Yo
0.66
0.52
●Angular Contact Ball Bearings (Single, Duplex)
B
2B
r
r1
r
r
φD
2B
2C
C
ra
ra
φD
φd
φd
2B
B
a
a
back-to-back
arrangement
(DB)
face-to-face
arrangement
(DF)
a
single
φda
φDa
a
a
single
back-to-back
arrangement
(DB)
d 130∼160mm
Boundary dimensions
contact
angle
dynamic
mm
Basic load ratings
static
dynamic
static
single
kN
kgf
Cor
Cr
Cor
Bearing Drawing1 Load
numbers No.
center
single
mm
a
Mass
single
kg
D
B
C
rs min2 rls min2
α
Cr
130
200
200
205
230
230
280
280
33
33
24
40
40
58
58
−
−
−
−
−
−
−
2
2
2.5
3
3
4
4
1
1
1
1.1
1.1
1.5
1.5
30
40
30
30
40
30
40
117
105
75.0
196
177
273
250
125
113
90.0
198
180
293
268
12,000
10,700
7,650
20,000
18,100
27,900
25,500
12,800
11,500
9,150
20,200
18,300
29,800
27,400
7026
7026B
SF2608
7226
7226B
7326
7326B
A
A
A
A
A
A
A
64
86
60.5
72
95.5
88
115
3.73
3.78
2.98
7.15
7.15
17.6
17.6
140
175
190
210
210
250
250
300
300
18
24
33
33
42
42
62
62
−
−
−
−
−
−
−
−
1.1
1.5
2
2
3
3
4
4
0.6
1
1
1
1.1
1.1
1.5
1.5
30
30
30
40
30
40
30
40
43.0
75.5
120
107
203
183
300
275
55.5
90.0
133
119
215
195
335
310
4,350
7,700
12,200
10,900
20,700
18,700
30,500
28,100
5,650
9,150
13,500
12,100
21,900
19,900
34,500
31,500
7828
7928
7028
7028B
7228
7228B
7328
7328B
A
A
A
A
A
A
A
A
54.5
59.5
67
90
77.5
103
94.5
123
0.97
1.94
3.96
4.01
8.78
8.78
21.5
21.5
145
220
38
−
2.5
1.5
30
148
158
15,100
16,100
SF2951
A
71.7
5.15
150
190
210
225
225
270
270
320
320
20
28
35
35
45
45
65
65
−
−
−
−
−
−
−
−
1.1
2
2.1
2.1
3
3
4
4
0.6
1
1.1
1.1
1.1
1.1
1.5
1.5
30
30
30
40
30
40
30
40
54.5
97.5
137
122
232
210
330
300
70.5
117
154
138
259
235
380
350
5,550
9,900
14,000
12,500
23,700
21,400
33,500
30,500
7,200
11,900
15,700
14,000
26,400
24,000
39,000
36,000
7830
7930
7030
7030B
7230
7230B
7330
7330B
A
A
A
A
A
A
A
A
59
66
71.5
96
83
111
100
131
1.35
2.96
4.82
4.88
11
11
25.1
25.1
160
200
215
220
229.5
229.5
230
240
240
290
290
340
20
28
28
33
33
33
38
38
48
48
68
−
25
−
−
−
−
−
−
−
−
−
1.1
2.5
2
2.5
2.5
2.5
2.1
2.1
3
3
4
0.6
1.1
1
1
1
1
1.1
1.1
1.1
1.1
1.5
30
40
30
40
40
30
30
40
30
40
30
55.5
75.5
98.5
111
111
124
155
139
263
238
345
74.0
93.0
121
128
128
147
176
158
305
279
420
5,650
7,700
10,000
11,300
11,300
12,600
15,800
14,100
26,800
24,200
35,500
7,550
9,450
12,300
13,100
13,100
15,000
18,000
16,100
31,500
28,400
43,000
7832
SF3208
7932
SF3209
SF3214
SF3210
7032
7032B
7232
7232B
7332
A
F
A
A
C
A
A
A
A
A
A
62
91
69
98.5
98.5
73
77
103
89
118
106
1.42
2.74
3.13
4.52
4.52
4.15
5.96
5.98
13.7
13.7
29.8
d
1 Drawing details are shown in Page B-15.
2 Smallest allowable dimension for chamfer dimension r or r1.
B-20
(approx.)
●Angular Contact Ball Bearings (Single, Duplex)
r1a
ra
Equivalent bearing load
dynamic
Pr＝XFr＋YFa
ra
ra
Contact
angle
φda
φDb
30˚ 0.80
40˚ 1.14
φda
φDa
Single
DB, DF
Fa / Fr≦e Fa / Fr＞e Fa / Fr≦e Fa / Fr＞e
X
Y
X
Y
X
Y
X
Y
e
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
Por＝Xo Fr＋Yo Fa
Contact
angle
Xo
Yo
Xo
30˚
40˚
0.5
0.5
0.33
0.26
1
1
Single
DB, DF
For single, When Por＜Fr use Por＝Fr
dynamic
Cr
Basic load ratings
static
dynamic
static
(duplex)
KN
kgf
Cor
Cr
Cor
Bearing
numbers
(duplex)
DB
DF
Load
center
mm
a
DB
DF
da
Abutment and
fillet dimensions
mm
Da
ras
rlas
min
max
max
max
191
171
122
320
288
445
405
251
226
180
395
360
585
535
19,400
17,400
12,500
32,500
29,400
45,500
41,500
25,600
23,100
18,300
40,500
36,500
59,500
54,500
DB
DB
DB
DB
DB
DB
DB
DF
DF
DF
DF
DF
DF
DF
161
171.5
120.5
184
231
234
288
95
105.5
72.5
104
151
118
172
140
140
142
144
144
148
148
190
190
193
216
216
262
262
2
2
2
2.5
2.5
3
3
1
1
1
1
1
1.5
1.5
69.5
123
194
174
330
297
490
445
111
180
265
237
430
390
670
615
7,100
12,500
19,800
17,700
33,500
30,500
50,000
45,500
11,300
18,300
27,000
24,200
44,000
40,000
68,500
63,000
DB
DB
DB
DB
DB
DB
DB
DB
DF
DF
DF
DF
DF
DF
DF
DF
109
143
167
180
197
248
251
308
73
95
101
114
113
164
127
184
147
148.5
150
150
154
154
158
158
168
181.5
200
200
236
236
282
282
1
1.5
2
2
2.5
2.5
3
3
0.6
1
1
1
1
1
1.5
1.5
241
315
24,500
32,000
DB
DF
143.5
67.5
157
208
2
1.5
88.5
158
222
199
375
340
535
490
141
234
305
275
515
470
765
700
9,000
16,100
22,700
20,300
38,500
34,500
54,500
50,000
14,400
23,900
31,500
28,100
53,000
48,000
78,000
71,500
DB
DB
DB
DB
DB
DB
DB
DB
DF
DF
DF
DF
DF
DF
DF
DF
118
160
178
192.5
211
267
265
327
78
104
108
122.5
121
177
135
197
157
160
162
162
164
164
168
168
183
200
213
213
256
256
302
302
1
2
2
2
2.5
2.5
3
3
0.6
1
1
1
1
1
1.5
1.5
90.5
123
160
180
180
201
252
225
425
385
565
148
186
241
256
256
293
355
315
615
555
845
9,200
12,500
16,300
18,300
18,300
20,500
25,700
23,000
43,500
39,500
57,500
15,100
18,900
24,600
26,100
26,100
29,900
36,000
32,500
62,500
57,000
86,000
DB
DB
DB
DB
−
DB
DB
DB
DB
DB
DB
DF
−
DF
DF
DF
DF
DF
DF
DF
DF
DF
124
182.5
166
196.5
196.5
145.5
192
206
226
284
280
84
132.5
110
130.5
130.5
79.5
116
130
130
188
144
167
172
170
172
172
172
172
172
174
174
178
193
203
210
217.5
217.5
218
228
228
276
276
322
1
2
2
2
2
2
2
2
2.5
2.5
3
0.6
1
1
1
1
1
1
1
1
1
1.5
B-21
Yo
0.66
0.52
●Angular Contact Ball Bearings (Single, Duplex)
B
2B
r
r1
r
r
φD
2B
2C
C
ra
ra
φD
φd
φd
2B
B
a
a
back-to-back
arrangement
(DB)
face-to-face
arrangement
(DF)
a
single
φda
φDa
a
a
single
back-to-back
arrangement
(DB)
d 160∼195mm
Boundary dimensions
contact
angle
dynamic
mm
Basic load ratings
static
dynamic
static
single
kN
kgf
Cor
Cr
Cor
Bearing Drawing1 Load
numbers No.
center
single
mm
a
Mass
single
kg
D
B
C
rs min2 rls min2
α
Cr
160
340
68
−
4
1.5
40
315
385
32,000
39,500
7332B
A
139
29.8
170
215
230
260
260
310
310
360
360
22
28
42
42
52
52
72
72
−
−
−
−
−
−
−
−
1.1
2
2.1
2.1
4
4
4
4
0.6
1
1.1
1.1
1.5
1.5
1.5
1.5
30
30
30
40
30
40
30
40
68.5
102
186
166
295
266
390
355
90.5
129
214
193
360
325
485
445
6,950
10,400
18,900
17,000
30,000
27,200
39,500
36,000
9,250
13,100
21,900
19,700
36,500
33,000
49,500
45,500
7834
7934
7034
7034B
7234
7234B
7334
7334B
A
A
A
A
A
A
A
A
66.5
71.5
83
111.5
95.5
127
113
147
1.88
3.29
7.96
8.02
17
17
35.3
35.3
180
225
250
259.5
259.5
259.5
259.5
280
280
320
320
380
380
22
33
33
33
33
33
46
46
52
52
75
75
−
−
−
−
−
−
−
−
−
−
−
−
1.1
2
2.5
2.5
2.5
2.5
2.1
2.1
4
4
4
4
0.6
1
1
1
1
1
1.1
1.1
1.5
1.5
1.5
1.5
30
30
40
30
30
30
30
40
30
40
30
40
70.0
131
138
178
178
155
219
196
305
276
410
375
95.0
163
166
211
211
190
266
240
385
350
535
490
7,100
13,400
14,100
18,200
18,200
15,800
22,300
20,000
31,000
28,100
41,500
38,000
9,700
16,600
16,900
21,500
21,500
19,400
27,100
24,400
39,000
35,500
54,500
50,000
7836
7936
SF3618
SF3629
SF3639
SF3641
7036
7036B
7236
7236B
7336
7336B
A
A
B
C
B
C
A
A
A
A
A
A
69.5
78.5
109
80
80
80
89.5
119.5
98
131
118
155
1.98
4.87
5.7
5.8
5.75
5.65
10.4
10.5
17.7
17.7
40.9
40.9
190
240
255
259.5
260
269.5
269.5
290
290
340
340
400
400
24
33
33
33
33
33
46
46
55
55
78
78
−
29
−
−
−
−
−
−
−
−
−
−
1.5
2.5
2
2
2.5
2.5
2.1
2.1
4
4
5
5
1
1.5
1
1
1.5
2.5
1.1
1.1
1.5
1.5
2
2
30
40
30
30
30
40
30
40
30
40
30
40
85.0
108
133
133
132
134
224
201
305
273
430
390
116
138
169
169
168
166
280
253
390
355
585
535
8,650
11,000
13,500
13,500
13,500
13,600
22,800
20,400
31,000
27,800
44,000
40,000
11,800
14,100
17,200
17,200
17,100
16,900
28,600
25,800
39,500
36,000
59,500
54,500
7838
SF3806
SF3816
7938
SF3802
SF3807
7038
7038B
7238
7238B
7338
7338B
A
F
C
A
A
B
A
A
A
A
A
A
74
108
81.5
81.5
83
113
92.5
124
104
139
124
163
2.55
4.16
5.1
5.1
5.95
6.05
10.8
10.9
21.3
21.3
47
47
195
270
35
−
2.5
1.5
30
153
196
15,600
20,000
SF3901
C
84.5
6.2
d
1 Drawing details are shown in Page B-15.
2 Smallest allowable dimension for chamfer dimension r or r1.
B-22
(approx.)
●Angular Contact Ball Bearings (Single, Duplex)
r1a
ra
ra
ra
φda
φDb
Equivalent bearing load
dynamic
Pr＝XFr＋YFa
Contact
angle
30˚ 0.80
40˚ 1.14
φda
φDa
Single
DB, DF
Fa / Fr≦e Fa / Fr＞e Fa / Fr≦e Fa / Fr＞e
X
Y
X
Y
X
Y
X
Y
e
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
Por＝Xo Fr＋Yo Fa
Contact
angle
Xo
Yo
Xo
30˚
40˚
0.5
0.5
0.33
0.26
1
1
Single
DB, DF
For single, When Por＜Fr use Por＝Fr
dynamic
Cr
Basic load ratings
static
dynamic
static
(duplex)
KN
kgf
Cor
Cr
Cor
Bearing
numbers
(duplex)
DB
DF
Load
center
mm
a
DB
DF
da
Abutment and
fillet dimensions
mm
Da
ras
rlas
min
max
max
max
515
770
52,500
79,000
DB
DF
346
210
178
322
3
1.5
111
165
300
270
480
435
630
575
181
257
430
385
715
650
970
890
11,300
16,900
31,000
27,600
49,000
44,000
64,500
59,000
18,500
26,200
43,500
39,500
73,000
66,500
99,000
90,500
DB
DB
DB
DB
DB
DB
DB
DB
DF
DF
DF
DF
DF
DF
DF
DF
133
171
208
222.5
243
306
298
366
89
115
124
138.5
139
202
154
222
177
180
182
182
188
188
188
188
208
220
248
248
292
292
342
342
1
2
2
2
3
3
3
3
0.6
1
1
1
1.5
1.5
1.5
1.5
113
213
224
290
290
251
355
320
495
450
665
605
190
325
330
420
420
380
530
480
770
700
1,070
975
11,600
21,700
22,800
29,600
29,600
25,600
36,500
32,500
50,500
45,500
68,000
62,000
19,400
33,500
34,000
43,000
43,000
38,500
54,000
49,000
78,500
71,000
109,000
99,500
DB
DB
DB
−
DB
−
DB
DB
DB
DB
DB
DB
DF
DF
−
DF
DF
DF
DF
DF
DF
DF
DF
DF
139
190
217.5
160
160
160
225
239
248
314
311
385
95
124
151.5
94
80
94
133
147
144
210
161
235
187
190
192
192
192
192
192
192
198
198
198
198
218
240
247.5
247.5
247.5
247.5
268
268
302
302
362
362
1
2
2
2
2
2
2
2
3
3
3
3
0.6
1
1
1
1
1
1
1
1.5
1.5
1.5
1.5
138
175
216
216
215
217
365
325
495
445
695
635
232
276
335
335
335
330
560
505
780
705
1,170
1,070
14,100
17,800
22,000
22,000
21,900
22,100
37,000
33,000
50,000
45,000
71,000
64,500
23,700
28,200
34,500
34,500
34,500
34,000
57,000
51,500
79,500
72,000
119,000
109,000
DB
DB
−
DB
DB
DB
DB
DB
DB
DB
DB
DB
DF
−
DF
DF
DF
−
DF
DF
DF
DF
DF
DF
148
215.5
163
196
166
226
231
247.5
263
333
326
404
100
157.5
97
130
83
160
139
155.5
153
223
170
248
198.5
202
200
200
202
202
202
202
208
208
212
212
231.5
243
249.5
250
257.5
257.5
278
278
322
322
378
378
1.5
2
2
2
2
2
2
2
3
3
4
4
1
1.5
1
1
1.5
2
1
1
1.5
1.5
2
2
249
390
25,400
40,000
−
DF
169
207
258
2
1.5
B-23
99
Yo
0.66
0.52
●Angular Contact Ball Bearings (Single, Duplex)
B
2B
r
r1
r
r
φD
2B
2C
C
ra
ra
φD
φd
φd
2B
B
a
a
back-to-back
arrangement
(DB)
face-to-face
arrangement
(DF)
a
single
φda
φDa
a
a
single
back-to-back
arrangement
(DB)
d 200∼250mm
Boundary dimensions
contact
angle
dynamic
mm
Basic load ratings
static
dynamic
static
single
kN
kgf
Cor
Cr
Cor
Bearing Drawing1 Load
numbers No.
center
single
mm
a
Mass
single
kg
B
C
rs min2 rls min2
α
200
250
279.5
280
289.5
310
310
360
360
420
420
24
38
38
38
51
51
58
58
80
80
−
−
−
−
−
−
−
−
−
−
1.5
2.5
2.1
2.5
2.1
2.1
4
4
5
5
1
1.5
1.1
1.5
1.1
1.1
1.5
1.5
2
2
30
40
30
40
30
40
30
40
30
40
87.0
165
185
188
252
226
335
305
450
410
122
202
231
238
325
293
450
410
605
555
8,850
16,800
18,900
19,200
25,700
23,000
34,500
31,000
46,000
42,000
12,400
20,600
23,600
24,200
33,000
29,900
46,000
41,500
62,000
56,500
7840
SF4006
7940
SF4017
7040
7040B
7240
7240B
7340
7340B
A
A
A
C
A
A
A
A
A
A
77
119.5
88.5
122
99
132.5
110
146
130
170
2.68
7.15
7.15
8.25
14
14.1
25.3
25.3
53.1
53.1
203.2
330.2
88.9 −
3
1.5
30
219
285
22,400
29,100
SF4104
A
99
14.7
220
270
300
300
309.5
309.5
319.5
340
340
400
460
24
38
38
38
38
46
56
56
65
88
−
−
35
−
−
−
−
−
−
−
1.5
2.1
2.5
2.1
2.1
2.1
3
3
4
5
1
1.1
1.5
1.1
1.1
1.1
1.1
1.1
1.5
2
30
30
40
40
40
35
30
40
30
30
89.0
187
149
190
190
226
286
238
345
495
131
239
189
246
246
299
390
325
485
725
9,100
19,000
15,200
19,400
19,400
23,000
29,100
24,300
35,000
50,500
13,300
24,300
19,300
25,100
25,100
30,500
39,500
33,000
49,500
74,000
7844
7944
SF4407
SF4421
SF4433
SF4438
7044
7044B
7244
7344
A
A
F
B
C
C
A
A
A
A
82.5
94
126.5
130
130
117.5
109
145.5
122
142
2.91
7.74
7.25
8.9
8.9
12.2
18.2
18.4
37.1
72.4
230
329.5
40
−
2.5
1.5
40
154
202
15,700
20,600
SF4614
E
135.5
11
240
300
320
329.5
329.5
329.5
340
360
360
440
500
28
38
40
40
40
40
56
56
72
95
−
−
−
−
−
−
−
−
−
−
2
2.1
2.1
2.5
2.5
2.5
3
3
4
5
1
1.1
1.1
1.5
1.5
1.5
1.1
1.1
1.5
2
30
30
30
40
40
30
30
40
30
30
101
193
221
197
197
211
279
249
420
515
155
255
305
265
265
289
400
355
630
795
10,300
19,600
22,600
20,100
20,100
21,500
28,500
25,400
42,500
52,500
15,800
26,000
31,000
27,000
27,000
29,400
40,500
36,000
64,500
81,000
7848
7948
SF4839
SF4814
SF4818
SF4802
7048
7048B
7248
7348
A
A
C
A
B
A
A
A
A
A
92
100
102.5
139.5
139.5
160.5
114.5
154
135.5
154.5
4.49
8.34
10
10.1
10.1
11.5
19.5
19.8
49.8
92.2
250
340
349.5
38
46
−
−
2.5
3
1
1.5
40
30
169
233
222
325
17,200
23,700
22,600
33,000
SF5005
SF5004
F
A
141.5
109.5
9.55
13.6
d
D
Cr
1 Drawing details are shown in Page B-15.
2 Smallest allowable dimension for chamfer dimension r or r1.
B-24
(approx.)
●Angular Contact Ball Bearings (Single, Duplex)
r1a
ra
ra
ra
φda
φDb
Equivalent bearing load
dynamic
Pr＝XFr＋YFa
Contact
angle
30˚ 0.80
40˚ 1.14
φda
φDa
Single
DB, DF
Fa / Fr≦e Fa / Fr＞e Fa / Fr≦e Fa / Fr＞e
X
Y
X
Y
X
Y
X
Y
e
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
Por＝Xo Fr＋Yo Fa
Contact
angle
Xo
Yo
Xo
30˚
40˚
0.5
0.5
0.33
0.26
1
1
Single
DB, DF
For single, When Por＜Fr use Por＝Fr
dynamic
Cr
Basic load ratings
static
dynamic
static
(duplex)
KN
kgf
Cor
Cr
Cor
Bearing
numbers
(duplex)
DB
DF
Load
center
mm
a
DB
DF
da
min
Abutment and
fillet dimensions
mm
Da
ras
rlas
max
max
max
141
268
300
305
410
365
550
495
730
665
244
405
465
475
650
585
900
815
1,210
1,110
14,400
27,400
30,500
31,000
41,500
37,500
56,000
50,500
74,500
68,000
24,900
41,000
47,000
48,500
66,000
60,000
92,000
83,000
124,000
113,000
DB
DB
DB
−
DB
DB
DB
DB
DB
DB
DF
DF
DF
DF
DF
DF
DF
DF
DF
DF
154
239
215
243.5
249
265
278
350
340
420
106
163
139
167.5
147
163
162
234
180
260
208.5
212
212
212
212
212
218
218
222
222
241.5
267.5
268
277.5
298
298
342
342
398
398
1.5
2
2
2
2
2
3
3
4
4
1
1.5
1
1.5
1
1
1.5
1.5
2
2
355
570
36,500
58,000
DB
DF
198.5
109.5
217.2
316.2
2.5
1.5
145
305
243
310
310
365
465
385
560
805
261
475
380
490
490
600
780
650
975
1,450
14,800
31,000
24,700
31,500
31,500
37,500
47,500
39,500
57,000
82,000
26,600
48,500
38,500
50,000
50,000
61,000
79,500
66,000
99,000
148,000
DB
DB
DB
DB
−
−
DB
DB
DB
DB
DF
DF
−
−
DF
DF
DF
DF
DF
DF
165.5
226
253
260.5
260.5
235
217.5
291
244
284.5
117.5
150
183
184.5
184.5
143
105.5
179
114
108.5
228.5
232
232
232
232
232
234
234
238
242
261.5
288
288
297.5
297.5
307.5
326
326
382
438
1.5
2
2
2
2
2
2.5
2.5
3
4
1
1
1.5
1
1
1
1
1
1.5
2
251
405
25,600
41,000
DB
−
270.8
191
242
317.5
2
1.5
164
315
360
320
320
345
455
405
680
840
310
510
605
530
530
575
795
710
1,260
1,590
16,800
32,000
36,500
32,500
32,500
35,000
46,000
41,500
69,000
85,500
31,500
52,000
62,000
54,000
54,000
59,000
81,000
72,500
129,000
162,000
DB
DB
−
DB
DB
DB
DB
DB
DB
DB
DF
DF
DF
DF
−
DF
DF
DF
DF
DF
184
238
204.5
279
279
207.5
229.5
308
271
309
128
162
124.5
199
199
127.5
117.5
196
127
119
250
252
252
252
252
252
254
254
258
262
290
308
317.5
317.5
317.5
328
346
346
422
478
2
2
2
2
2
2
2.5
2.5
3
4
1
1
1
1.5
1.5
1.5
1
1
1.5
2
275
380
445
650
28,000
38,500
45,500
66,000
DB
DB
−
DF
282.5
219
212.5
127
262
264
328
335.5
2
2.5
1
1.5
B-25
Yo
0.66
0.52
●Angular Contact Ball Bearings (Single, Duplex)
B
2B
r
r1
r
r
φD
2B
ra
ra
φd
φda
φDa
a
a
back-to-back
arrangement
(DB)
face-to-face
arrangement
(DF)
a
single
d 260∼340mm
Boundary dimensions
contact
angle
dynamic
mm
Basic load ratings
static
dynamic
static
single
kN
kgf
Cor
Cr
Cor
Bearing Drawing1 Load
numbers No.
center
single
mm
a
Mass
single
kg
C
rs min2 rls min2
α
Cr
260
320
28
360
46
369.5
46
369.5
46
369.5
46
369.5
46
379.5
56
400
65
400
65
480
80
540
102
−
−
−
−
−
−
−
−
−
−
−
2
2.1
2.5
2.5
2.5
2.5
4
4
4
5
6
1
1.1
1.5
1.5
1.5
1.5
2
1.5
1.5
2
3
30
30
40
40
40
30
40
30
40
30
30
127
258
235
235
235
242
264
315
282
480
590
192
375
340
340
340
350
385
455
410
750
960
12,900
26,300
23,900
23,900
23,900
24,700
26,900
32,000
28,700
48,500
60,000
19,600
38,000
34,500
34,500
34,500
35,500
39,500
46,500
41,500
76,500
98,000
7852
7952
SF5206
SF5225
SF5224
SF5210
SF5218
7052
7052B
7252
7352
A
A
C
B
A
D
A
A
A
A
A
97.5
112
155
155
155
114
162.5
128
171
147
166.5
4.83
14
16.1
15.7
15.7
15.7
19.1
28.7
29
66
115
280
350
33
380
46
389.5
46
389.5
46
420
65
420
65
500
80
580
108
−
−
−
−
−
−
−
−
2
2.1
2.1
2.5
4
4
5
6
1
1.1
1.1
1.5
1.5
1.5
2
3
30
30
40
30
30
40
30
30
164
261
223
250
390
350
535
670
247
385
325
370
595
540
860
1,140
16,700
26,600
22,700
25,500
40,000
35,500
54,500
68,000
25,200
39,500
33,000
38,000
60,500
55,000
87,500
116,000
7856
7956
SF5606
SF5608
7056
7056B
7256
7356
A
A
A
D
A
A
A
A
107.5
118
163.5
119.5
133.5
179.5
152.5
178
7.17
14.8
16
16
30.7
30.9
69.7
140
285
380
46
−
2.5
2
40
206
305
21,000
31,000
SF5702
A
162.5
14.7
290
419.5
60
−
5
2.5
40
292
455
29,800
46,500
SF5803
B
179
26.9
300
380
420
460
460
540
38
56
74
74
85
−
−
−
−
−
2.1
3
4
4
5
1.1
1.1
1.5
1.5
2
30
30
30
40
30
193
325
440
395
550
290
520
715
645
930
19,700
33,500
45,000
40,500
56,500
29,500
53,000
73,000
66,000
94,500
7860
7960
7060
7060B
7260
A
A
A
A
A
117
132
146.5
196.5
164
10.1
23.7
43.4
43.7
87.2
310
429.5
60
−
4
2
40
297
470
30,500
48,000
SF6203
A
185.5
26.7
320
400
440
480
580
38
56
74
92
−
−
−
−
2.1
3
4
5
1.1
1.1
1.5
2
30
30
30
30
197
330
450
635
305
540
760
1,120
20,100
34,000
46,000
64,500
31,000
55,000
77,500
114,000
7864
7964
7064
7264
A
A
A
A
123
137.5
152.5
176
10.7
24.7
45.7
109
420
38
−
2.1
1.1
30
204
325
20,800
33,500
7868
A
128.5
11.3
d
340
D
B
1 Drawing details are shown in Page B-15.
2 Smallest allowable dimension for chamfer dimension r or r1.
B-26
(approx.)
●Angular Contact Ball Bearings (Single, Duplex)
r1a
ra
ra
ra
φda
φDb
Equivalent bearing load
dynamic
Pr＝XFr＋YFa
Contact
angle
30˚ 0.80
40˚ 1.14
φda
φDa
Single
DB, DF
Fa / Fr≦e Fa / Fr＞e Fa / Fr≦e Fa / Fr＞e
X
Y
X
Y
X
Y
X
Y
e
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
Por＝Xo Fr＋Yo Fa
Contact
angle
Xo
Yo
Xo
30˚
40˚
0.5
0.5
0.33
0.26
1
1
Single
DB, DF
For single, When Por＜Fr use Por＝Fr
dynamic
Cr
Basic load ratings
static
dynamic
static
(duplex)
KN
kgf
Cor
Cr
Cor
Bearing
numbers
(duplex)
DB
DF
Load
center
mm
a
DB
DF
da
min
Abutment and
fillet dimensions
mm
Da
ras
rlas
max
max
max
206
420
380
380
380
395
430
510
458
775
960
385
750
680
680
680
695
775
905
820
1,500
1,920
21,000
42,500
39,000
39,000
39,000
40,000
44,000
52,000
46,500
79,000
98,000
39,000
76,500
69,000
69,000
69,000
71,000
79,000
92,500
83,500
153,000
196,000
DB
DB
−
DB
DB
DB
DB
DB
DB
DB
DB
DF
DF
DF
−
DF
DF
DF
DF
DF
DF
DF
195.5
270
310.5
310.5
310.5
228
324.5
255.5
342
294
333
139.5
178
218.5
218.5
218.5
136
212.5
125.5
212
134
129
270
272
272
272
272
272
278
278
278
282
288
310
348
357.5
357.5
357.5
357.5
361.5
382
382
458
512
2
2
2
2
2
2
3
3
3
4
5
1
1
1.5
1.5
1.5
1.5
2
1.5
1.5
2
2.5
267
425
360
405
635
570
870
1,080
495
775
650
745
1,190
1,080
1,720
2,270
27,200
43,000
37,000
41,500
64,500
58,000
88,500
111,000
50,500
79,000
66,500
76,000
121,000
110,000
175,000
232,000
DB
DB
DB
DB
DB
DB
DB
DB
DF
DF
DF
DF
DF
DF
DF
DF
215
282
327
239.5
267
359
305
356.5
148
190
235
147.5
137
229
145
140.5
290
292
292
292
298
298
258
308
340
368
377.5
377.5
402
402
478
552
2
2
2
2
3
3
4
5
1
1
1
1.5
1.5
1.5
2
2.5
335
605
34,000
62,000
DB
DF
325
233
297
368
2
2
475
910
48,500
93,000
DB
−
357.5
237.5
312
397.5
4
2
315
530
715
640
895
580
1,040
1,430
1,290
1,860
32,000
54,000
73,000
65,500
91,500
59,000
106,000
146,000
132,000
189,000
DB
DB
DB
DB
DB
DF
DF
DF
DF
DF
234.5
320
293.5
393
327.5
158.5
208
145.5
245
157.5
312
314
318
318
322
368
406
442
442
518
2
2.5
3
3
4
1
1
1.5
1.5
2
480
945
49,000
96,000
DB
−
370.5
250.5
328
411.5
3
2
320
540
735
1,030
610
1,080
1,520
2,230
32,500
55,000
75,000
105,000
62,000
110,000
155,000
228,000
DB
DB
DB
DB
DF
DF
DF
DF
246
275.5
305
352
170
163.5
152.5
168
332
334
338
342
388
426
462
558
2
2.5
3
4
1
1
1.5
2
330
650
34,000
66,500
DB
DF
257.5
181.5
352
408
2
1
B-27
Yo
0.66
0.52
●Angular Contact Ball Bearings (Single, Duplex)
B
2B
r
r1
r
r
φD
2B
ra
ra
φd
φda
φDa
a
a
back-to-back
arrangement
(DB)
face-to-face
arrangement
(DF)
a
single
d 340∼480mm
Boundary dimensions
contact
angle
dynamic
mm
Basic load ratings
static
dynamic
static
single
kN
kgf
Cor
Cr
Cor
Bearing Drawing1 Load
numbers No.
center
single
mm
a
Mass
single
kg
B
C
rs min2 rls min2
α
Cr
340
460
479.5
520
620
56
65
82
92
−
−
−
−
3
4
5
5
1.1
2
2
2
30
30
30
30
345
395
520
650
575
680
905
1,200
35,000
40,500
53,000
66,500
59,000
69,500
92,500
122,000
7968
SF6807
7068
7268
A
A
A
A
143.5
151
165
184.5
26.0
36.7
61.1
127
360
440
480
509.5
540
650
38
56
70
82
95
−
−
−
−
−
2.1
3
5
5
6
1.1
1.1
2
2
3
30
30
40
30
30
226
350
390
530
670
365
595
685
960
1,280
23,100
35,500
40,000
54,500
68,500
37,000
60,500
69,500
98,000
130,000
7872
7972
SF7203
7072
7272
A
A
A
A
A
134.5
149.5
217.5
171
193.5
11.9
27.3
45
63.4
143
380
480
46
519.5
65
520
65
540
164
560
82
−
−
−
−
−
2.1
4
4
4
5
1.1
2
1.5
2
2
30
40
30
40
30
281
345
390
440
545
475
610
700
810
1,010
28,700
35,500
40,000
45,000
55,500
48,500
62,500
71,000
83,000
103,000
7876
SF7603
7976
SF7601
7076
A
A
A
A
A
147
221.5
162.5
234
176.5
19.5
41.3
39.6
61
66.3
400
500
540
600
46
65
90
−
−
−
2.1
4
5
1.1
1.5
2
30
30
30
287
395
615
500
720
1,180
29,300
40,000
63,000
51,000
73,500
121,000
7880
7980
7080
A
A
A
153
168
189.5
20.4
41
86.1
420
520
560
620
46
65
90
−
−
−
2.1
4
5
1.1
1.5
2
30
30
30
310
410
630
555
765
1,250
31,500
41,500
64,500
56,500
78,000
127,000
7884
7984
7084
A
A
A
158.5
174
195
21.1
42.8
89.7
440
540
600
650
46
74
94
−
−
−
2.1
4
6
1.1
1.5
3
30
30
30
310
445
645
565
860
1,310
31,500
45,500
65,500
58,000
87,500
134,000
7888
7988
7088
A
A
A
164.5
187
204.5
22
59.3
103
460
540
580
620
680
40
56
74
100
−
−
−
−
2.1
3
4
6
1.1
1.1
1.5
3
30
30
30
30
249
380
450
720
455
725
885
1,510
25,400
39,000
46,000
73,500
46,000
74,000
90,000
154,000
SF9211
7892
7992
7092
A
A
A
A
164.5
178
193
214.5
15.8
33.5
61.6
119
470
570
50
−
2.1
1.1
30
320
605
32,500
62,000
SF9404
A
175
480
600
650
700
56
78
100
−
−
−
3
5
6
1.1
2
3
30
30
30
390
530
715
760
1,090
1,520
40,000
54,000
73,000
77,500
111,000
155,000
7896
7996
7096
A
A
A
184
202
220.5
d
D
1 Drawing details are shown in Page B-15.
2 Smallest allowable dimension for chamfer dimension r or r1.
B-28
(approx.)
25.7
34.9
71.8
123
●Angular Contact Ball Bearings (Single, Duplex)
r1a
ra
Equivalent bearing load
dynamic
Pr＝XFr＋YFa
ra
ra
Contact
angle
φda
φDb
30˚ 0.80
40˚ 1.14
φda
φDa
Single
DB, DF
Fa / Fr≦e Fa / Fr＞e Fa / Fr≦e Fa / Fr＞e
X
Y
X
Y
X
Y
X
Y
e
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
Por＝Xo Fr＋Yo Fa
Contact
angle
Xo
Yo
Xo
30˚
40˚
0.5
0.5
0.33
0.26
1
1
Single
DB, DF
For single, When Por＜Fr use Por＝Fr
dynamic
Cr
Basic load ratings
static
dynamic
static
(duplex)
KN
kgf
Cor
Cr
Cor
Bearing
numbers
(duplex)
DB
DF
Load
center
mm
a
DB
DF
da
min
Abutment and
fillet dimensions
mm
Da
ras
rlas
max
max
max
560
645
845
1,060
1,150
1,360
1,810
2,400
57,000
65,500
86,000
108,000
118,000
139,000
185,000
244,000
DB
−
DB
DB
DF
DF
DF
DF
287
301.5
330.5
369
175
171.5
166.5
185
354
358
362
362
446
461.5
498
598
2.5
3
4
4
1
2
2
2
370
565
635
865
1,090
725
1,190
1,370
1,920
2,550
37,500
57,500
64,500
88,000
111,000
74,000
121,000
140,000
196,000
260,000
DB
DB
DB
DB
DB
DF
DF
−
DF
DF
269
298.5
435
342
386.5
193
186.5
295
178
196.5
372
374
382
382
388
428
466
487.5
518
622
2
2.5
4
4
5
1
1
2
2
2.5
455
565
635
715
865
955
1,220
1,400
1,620
1,920
46,500
57,500
64,500
73,000
88,000
97,500
125,000
142,000
166,000
196,000
DB
DB
DB
−
DB
DF
−
DF
DF
DF
294.5
442.5
325
468
342
202.5
312.5
195
304
178
392
398
398
398
402
468
501.5
502
522
538
2
3
3
3
4
1
2
1.5
2
2
465
640
1,000
1,000
1,440
2,370
47,500
65,500
102,000
102,000
147,000
241,000
DB
DB
DB
DF
DF
DF
306
336.5
379
214
206.5
199
412
418
422
488
522
578
2
3
4
1
1.5
2
505
660
1,030
1,110
1,530
2,500
51,500
67,500
105,000
113,000
156,000
255,000
DB
DB
DB
DF
DF
DF
317.5
348
390.5
225.5
218
210.5
432
438
442
508
542
598
2
3
4
1
1.5
2
505
720
1,050
1,130
1,720
2,630
51,500
73,500
107,000
116,000
175,000
268,000
DB
DB
DB
DF
DF
DF
329
374.5
409
237
226.5
221
452
458
468
528
582
622
2
3
5
1
1.5
2.5
405
620
730
117
905
1,450
1,770
300
41,500
63,000
74,500
12,000
92,500
148,000
180,000
31,000
DB
DB
DB
DB
−
DF
DF
DF
328.5
356.5
386
429
248.5
244.5
238
229
472
474
478
488
528
566
602
652
2
2.5
3
5
1
1
1.5
2.5
520
1,210
53,000
124,000
DB
−
350
250
482
558
2
1
635
860
1,170
1,520
2,180
3,050
64,500
88,000
119,000
155,000
223,000
310,000
DB
DB
DB
DF
DF
DF
368
404.5
441
256
248.5
241
494
502
508
586
628
672
2.5
4
5
1
2
2.5
B-29
Yo
0.66
0.52
●Angular Contact Ball Bearings (Single, Duplex)
B
2B
r
r1
r
r
φD
2B
ra
ra
φd
φda
φDa
a
a
back-to-back
arrangement
(DB)
face-to-face
arrangement
(DF)
a
single
d 500∼1,060mm
Boundary dimensions
contact
angle
dynamic
mm
Basic load ratings
static
dynamic
static
single
kN
kgf
Cor
Cr
Cor
Bearing Drawing1 Load
numbers No.
center
single
mm
a
Mass
single
kg
d
D
B
C
rs min2 rls min2
α
Cr
500
620
670
720
56
78
100
−
−
−
3
5
6
1.1
2
3
30
30
30
395
540
735
780
1,120
1,590
40,000
55,000
75,000
79,500
115,000
163,000
78/500
79/500
70/500
A
A
A
189.5
208
226
36.5
74.9
129
560
700
750
100
85
−
−
5
5
2.5
2
30
30
670
620
1,450
1,380
68,000
63,500
147,000
141,000
SF10013 A
79/560
A
223
231.5
87.3
105
630
780
69
−
4
1.5
30
500
1,140
51,000
116,000
78/630A
A
238
72.2
670
820
820
69
69
−
−
4
4
1.5
1.5
30
40
475
420
1,080
945
48,000
43,000
110,000
96,500
78/670
78/670B
A
A
249.5
347
76.3
76.3
700
900
74
−
4
1.5
30
530
1,290
54,000
131,000
SF14001 A
268
117
1,000 1,420
130
−
7.5
4
30
1,440
4,650
147,000
470,000
SF20001 A
414.5
654
1,060 1,280
100
−
6
3
30
880
2,680
895,000
273,000
78/1060
387.5
255
1 Drawing details are shown in Page B-15.
2 Smallest allowable dimension for chamfer dimension r or r1.
B-30
A
(approx.)
●Angular Contact Ball Bearings (Single, Duplex)
r1a
ra
ra
ra
φda
φDb
Equivalent bearing load
dynamic
Pr＝XFr＋YFa
Contact
angle
30˚ 0.80
40˚ 1.14
φda
φDa
Single
DB, DF
Fa / Fr≦e Fa / Fr＞e Fa / Fr≦e Fa / Fr＞e
X
Y
X
Y
X
Y
X
Y
e
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
Por＝Xo Fr＋Yo Fa
Contact
angle
Xo
Yo
Xo
30˚
40˚
0.5
0.5
0.33
0.26
1
1
Single
DB, DF
For single, When Por＜Fr use Por＝Fr
dynamic
Cr
Basic load ratings
static
dynamic
static
(duplex)
KN
kgf
Cor
Cr
Cor
Bearing
numbers
(duplex)
DB
DF
Load
center
mm
a
DB
DF
da
Abutment and
fillet dimensions
mm
Da
ras
rlas
min
max
max
max
640
875
1,190
1,560
2,250
3,200
65,000
89,000
122,000
159,000
229,000
325,000
DB
DB
DB
DF
DF
DF
379.5
416
452.5
267.5
260
252.5
514
522
528
606
648
692
2.5
4
5
1
2
2.5
1,080
1,010
2,890
2,760
111,000
103,000
295,000
281,000
DB
DB
DF
DF
446.5
463.5
246.5
293.5
522
582
678
728
4
4
2
2
815
2,270
83,000
232,000
DB
DF
476
338
648
762
3
1.5
770
680
2,150
1,890
78,500
69,500
219,000
193,000
DB
DB
DF
DF
499
694
361
556
688
688
802
802
3
3
1.5
1.5
860
2,580
88,000
263,000
DB
DF
536
388
718
882
3
1.5
2,340
9,250
238,000
945,000
DB
DF
828.5
568.5
1,036
1,384
6
3
1,430
5,350
146,000
545,000
DB
DF
775.5
575.5
1,088
1,252
5
2.5
B-31
Yo
0.66
0.52
●Double Row Angular Contact Ball Bearings
C
C
C1
r1
r1
r
r
r
φd
φD
r
φd
φD
φd
φD
B1
B1
B
a
a
a
d 100∼190mm
Boundary dimensions
Contact
angle dynamic
mm
d
D
BorBl
CorCl
kN
Basic load ratings
static
dynamic
kgf
static
rs min2
rls min2
α
Cr
Cor
Cr
Cor
Bearing Drawing1
numbers
No.
100
170
60.3
60.3
2.5
2.5
40
160
179
16,300
18,200
DE2010
D
110
169.5
56
56
2.5
−
30
149
186
15,200
18,900
DE2208
B
120
190
190
66
66
66
66
2.5
2.5
1
1
30
30
187
187
236
236
19,000
19,000
24,100
24,100
DE2405
DE2409
F
D
130
200
66
66
2.5
−
30
191
251
19,400
25,600
DE2601
B
140
210
210
210
66
66
66
66
66
66
2
1
2.5
−
−
−
40
40
30
203
179
194
266
248
265
20,700
18,300
19,800
27,100
25,300
27,000
DE2812
DE2806
DE2807
A
B
B
150
225
225
225
230
230
70
70
73
70
70
70
70
73
70
70
2.5
2.5
2.5
2.5
2
−
−
−
1.5
2
30
30
30
30
40
222
222
216
222
198
305
305
293
305
275
22,700
22,700
22,000
22,700
20,200
31,500
31,500
29,900
31,500
28,100
DE3010
DE3011
DE3009
DE3007
DE3019
A
B
A
F
D
160
215
240
56
76
50
76
2
2.5
1.1
−
40
30
123
252
186
355
12,500
25,700
18,900
36,000
DE3207
DE3201
C
A
170
260
84
84
2.5
−
30
300
430
31,000
43,500
DE3402
A
175
280
280
92
92
92
92
2.5
2.5
−
−
40
40
320
320
480
480
32,500
32,500
49,000
49,000
DE3502
DE3501
A
A
180
250
250
259.5
259.5
259.5
259.5
259.5
259.5
280
66
70
66
66
66
66
66
66
92
66
70
66
66
66
66
66
66
92
2.5
2.5
2.5
2.5
2.5
2
2.5
2.5
2.5
−
1
1
1
−
−
−
2.5
−
40
40
30
30
40
40
30
30
30
185
190
212
212
224
224
251
212
345
275
285
325
325
330
330
380
325
505
18,900
19,300
21,600
21,600
22,800
22,800
25,600
21,600
35,000
28,000
29,100
33,000
33,000
34,000
34,000
38,500
33,000
51,500
DE3606
DE3609
DE3610
DE3601
DE3608
DE3615
DE3603
DE3612
DE3605
A
F
D
F
B
A
A
D
A
190
269.5
269.5
66
66
66
66
2.5
2.5
1
1
30
30
215
215
335
335
21,900
21,900
34,500
34,500
DE3807
DE3801
D
F
1 Drawing details are shown in Page B-16.
2 Smallest allowable dimension for chamfer dimension r or r1.
B-32
●Double Row Angular Contact Ball Bearings
ra
r1a
ra
ra
φda
φDa
Equivalent bearing load
dynamic
Pr＝XFr＋YFa
Contact
angle
φda
φDa
Single
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
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
Por＝Xo Fr＋Yo Fa
Contact
angle
Xo
Yo
Xo
30˚
40˚
0.5
0.5
0.33
0.26
1
1
Single
DB, DF
For single, When Por＜Fr use Por＝Fr
da
Abutment and
fillet dimensions
mm
Da
ras
rlas
min
Load
center
mm
Mass
a
(approx.)
kg
max
max
max
158
112
2
2
157.5
112
2
−
184.5
184.5
132
132
2
2
1
1
122
122
7.09
7.09
188
142
2
−
64
7.54
198
204.5
198
150
152
152
2
2
2
−
−
−
90
90
67
8
7.76
7.72
213
213
213
221.5
221.5
162
162
162
162
158.5
2
2
2
2
2
−
−
−
1.5
2
71.5
71.5
72.5
143
194
9.74
9.74
9.69
9.74
9.74
208
228
170
172
2
2
1
−
182
76.5
5.71
12
248
182
2
−
111
16.1
268
268
187
187
2
2
−
−
119
88.5
21.7
21.7
238
244.5
254
254
247.5
249.5
247.5
247.5
268
192
192
192
192
192
190
192
192
192
2
2
2
2
2
2
2
2
2
−
1
1
1
−
−
−
2
−
106
215
160
160
109
109
80
160
89.5
9.83
10.4
10.4
10.4
10.7
10.7
10.7
10.4
20.9
264
264
202
202
2
2
1
1
166
166
11.9
11.9
143
54.5
5.64
4.61
B-33
Yo
0.66
0.52
●Double Row Angular Contact Ball Bearings
C
C
C1
r1
r1
r
r
r
φd
φD
r
φd
φD
φd
φD
B1
B1
B
a
a
a
d 200∼360mm
Boundary dimensions
Contact
angle dynamic
mm
kN
d
D
BorBl
CorCl
rs min2
200
279.5
279.5
289.5
289.5
289.5
289.5
289.5
310
76
76
76
76
76
76
76
102
76
76
76
76
76
76
76
102
220
309.5
309.5
309.5
319.5
319.5
76
76
76
92
92
230
329.5
329.5
329.5
240
359.5
250
Basic load ratings
static
dynamic
kgf
static
Bearing Drawing1
numbers
No.
rls min2
α
Cr
Cor
Cr
Cor
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
1.5
−
1.5
2.1
1.5
1.5
1.5
−
30
30
40
30
30
30
30
30
253
253
260
269
269
269
269
410
405
405
385
420
420
420
420
650
25,800
25,800
26,500
27,500
27,500
27,500
27,500
41,500
41,500
41,500
39,500
42,500
42,500
42,500
42,500
66,000
DE4004
DE4008
DE4010
DE4019
DE4009
DE4002
DE4012
DE4007
F
B
G
D
F
F
D
A
76
76
76
92
92
2.5
2.5
2.1
2.5
2.5
−
−
1.1
−
−
30
30
30
30
40
325
325
325
375
335
520
520
520
625
550
33,000
33,000
33,000
38,500
34,500
53,000
53,000
53,000
63,500
56,000
DE4403
DE4404
DE4408
DE4409
DE4406
A
A
D
A
A
80
80
80
80
80
80
2.5
2.5
2.5
1.5
1.5
1.5
30
30
30
350
350
350
585
585
585
36,000
36,000
36,000
59,500
59,500
59,500
DE4602
DE4603
DE4605
F
D
E
112
112
3
1.5
40
440
770
45,000
78,500
DE4803
F
340
76
70
2
2
30
272
480
27,800
49,000
DE5004
C
260
369.5
369.5
369.5
92
92
92
92
92
92
2.5
2.5
2.5
−
−
2.5
40
30
30
380
430
395
680
775
695
39,000
43,500
40,000
69,000
79,000
71,000
DE5213
DE5211
DE5212
A
A
F
280
389.5
92
92
2.1
1.1
30
405
745
41,500
76,000
DE5605
D
300
429.5
112
112
3
−
30
530
1,040
54,000
106,000
DE6001
A
360
540
164
164
5
−
30
725
1,630
74,000
166,000
DE7201
A
1 Drawing details are shown in Page B-16.
2 Smallest allowable dimension for chamfer dimension r or r1.
B-34
●Double Row Angular Contact Ball Bearings
ra
r1a
ra
ra
φda
φDa
Equivalent bearing load
dynamic
Pr＝XFr＋YFa
Contact
angle
φda
φDa
Single
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
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
Por＝Xo Fr＋Yo Fa
Contact
angle
Xo
Yo
Xo
30˚
40˚
0.5
0.5
0.33
0.26
1
1
Single
DB, DF
For single, When Por＜Fr use Por＝Fr
da
Abutment and
fillet dimensions
mm
Da
ras
rlas
min
max
max
max
Load
center
mm
Mass
a
(approx.)
kg
271
267.5
281
277.5
281
281
281
298
212
212
212
212
212
212
212
212
2
2
2
2
2
2
2
2
1.5
−
1.5
2
1.5
1.5
1.5
−
177
88.5
244
179
180
179
179
99
14.3
14.3
16.5
16.4
16.4
16.4
16.4
28.3
297.5
297.5
302.5
307.5
307.5
232
232
232
232
232
2
2
2
2
2
−
−
1
−
−
95.5
95.5
191
101
136
17.8
17.8
17.8
24.4
24.4
321
321
321
242
242
242
2
2
2
1.5
1.5
1.5
202
202
202
22
22
22
351
254
2.5
1.5
308
39.7
328
262
2
2
208
18.4
357.5
357.5
357.5
272
272
272
2
2
2
−
−
2
155
114
228
31.3
31.3
30.9
382.5
292
2
1
239
33.4
417.5
312
2.5
−
132
52.4
518
382
4
−
171
131
B-35
Yo
0.66
0.52