Deep groove ball bearing

Bearing No. 

Inner
d
mm inch

Outer
D
mm  inch

Width
W

Radium
r
mm   inch

Basic Load Rating KN


Open
mm  inch

Shielded/Sealed
mm  inch

Dynamic
C

Static
C0


R144
R2
R2A
R155
R156
R166
R3
R3A
R168
R188
R4
R4A
R6
R8

3.175   .1250
3.175   .1250
3.175   .1250
3.967   .1562
4.763     .1875
4.763     .1875
4.763     .1875
4.763     .1875
6.350     .2500
6.350     .2500
6.350     .2500
6.350     .2500
9.525     .3750
12.700   .5000

6.350  .2500
9.525   .3750
12.700  .5000
7.938   .3125
7.938      .3125
9.525      .3750
12.700    .5000
12.700    .5000
9.525      .3750
12.700    .5000
15.875    .6250
19.050    .7500
22.225    .8750
28.575  .1250

2.2380 .0937
3.967 .1562
4.366 .1719
2.779 .1094
2.78 .1094
3.18 .1250
3.97 .1562
4.98 .1960
3.18 .1250
3.18 .1250
4.98 .1960
5.56 .2188
5.56  .2188
6.35 .2500

2.779  .1094
3.967  .1562
4.366  .1719
3.175  .1250
3.18     .1250
3.18     .1250
4.98     .1960
4.98     .1960
3.18     .1250
4.76     .1875
4.98     .1960
7.14     .2812
7.14     .2812
7.94     .3125

0.10  .0039
0.30  .0118
0.30  .0118
0.10  .0039
0.1      .004
0.1      .004
0.15    .006
0.15    .006
0.1      .004
0.15    .006
0.2      .008
0.3      .012
0.3      .012
0.3      .012

 
 
 
 
0.395
0.710
1.31
1.31
0.268
0.83
1.48
2.34
3.30
3.912

 
 
 
 
0.143
0.268
0.49
0.49
0.136
0.37
0.615
0.885
1.40
2.245