Bearing No.
Boundary dimensions
Basic load ratings(kN)
Limiting speeds
Mass
mm
Dynamic
Static
rpm
Kg
d
D
B
rs min
Cr
Cor
Grease
Oil
≈
21308
40
90
23
1.5
88
3200
4900
0.705
21308K
0.694
21308KW33C3
21308W33C3
21309
45
100
25
102
106
2900
4400
0.927
21309K
0.912
21309KW33C3
21309W33C3
21310
50
110
27
2
118
127
2600
4000
1.21
21310K
1.19
21310KW33C3
21310W33C3
21311
55
120
29
145
163
2400
3700
1.71
21311K
1.69
21311KW33C3
21311W33C3
21312
60
130
31
2.1
167
191
2200
3400
21312K
2.07
21312KW33C3
21312W33C3
21313
65
140
33
194
228
2000
3100
2.55
21313K
2.51
21313KW33C3
21313W33C3
21314
70
150
35
220
262
1900
3.18
21314K
3.14
21314KW33C3
21314W33C3
21315
75
160
37
239
287
1800
2700
3.81
21315K
3.76
21315KW33C3
21315W33C3
21316
80
170
39
260
315
1700
2500
4.53
21316K
4.47
21316KW33C3
21316W33C3
21317
85
180
41
3
289
355
1600
5.35
21317K
5.28
21317KW33C3
21317W33C3
21318
190
43
320
400
1500
2300
6.3
21318K
6.21
21318KW33C3
21318W33C3
21319
95
200
335
420
1400
2100
7.1
21319K
7
21319KW33C3
21319W33C3
21320
215
47
370
465
1300
8.89
21320K
8.78
21320KW33C3
21320W33C3
21322
240
495
615
1200
11.2
21322K
11.1
21322KW33C3
21322W33C3