| Bearing Number | Principal dimensions | |||
| d (mm) | d (in) | D (mm) | D (in) | |
| 31312 | 60 | 2.364 | 130 | 5.122 | 32012 | 60 | 2.364 | 95 | 3.743 |
| 32312 | 60 | 2.364 | 130 | 5.122 | 30312 | 60 | 2.364 | 130 | 5.122 |
| 30212 | 60 | 2.364 | 110 | 4.334 | 33113 | 65 | 2.561 | 110 | 4.334 |
| 33013 | 65 | 2.561 | 100 | 3.94 | 33213 | 65 | 2.561 | 120 | 4.728 |
| 31313 | 65 | 2.561 | 140 | 5.516 | 32013 | 65 | 2.561 | 100 | 3.94 |
| 32313 | 65 | 2.561 | 140 | 5.516 | 30313 | 65 | 2.561 | 140 | 5.516 |