| Bearing Number | Boundary dimensions | |||
| d (mm) | d (in) | D (mm) | D (in) | |
| 1200 | 10 | 0.394 | 30 | 1.182 | 1201 | 12 | 0.473 | 32 | 1.261 |
| 1202 | 15 | 0.591 | 35 | 1.379 | 1203 | 17 | 0.67 | 40 | 1.576 |
| 1204 | 20 | 0.788 | 47 | 1.852 | 1204K | 20 | 0.788 | 47 | 1.852 |
| 1205 | 25 | 0.985 | 52 | 2.049 | 1205K | 25 | 0.985 | 52 | 2.049 |
| 1206 | 30 | 1.182 | 62 | 2.443 | 1206K | 30 | 1.182 | 62 | 2.443 |
| 1207 | 35 | 1.379 | 72 | 2.837 | 1207K | 35 | 1.379 | 72 | 2.837 |