| Bearing Number | Boundary dimensions | |||
| d(mm) | d (in) | D (mm) | D (in) | |
| 23256 | 280 | 11.032 | 500 | 19.7 | 23256K | 280 | 11.032 | 500 | 19.7 |
| 23256KW33C3 | 280 | 11.032 | 500 | 19.7 | 23256W33C3 | 280 | 11.032 | 500 | 19.7 |
| 23260 | 300 | 11.82 | 540 | 21.276 | 23260K | 300 | 11.82 | 540 | 21.276 |
| 23260KW33C3 | 300 | 11.82 | 540 | 21.276 | 23260W33C3 | 300 | 11.82 | 540 | 21.276 |