| Bearing Number | Boundary dimensions mm | |||
| d | D | B | rs min | |
| 686-ZC3 | 6 | 13 | 5 | 0.15 | 686-ZZ | 6 | 13 | 5 | 0.15 |
| 686-ZZC3 | 6 | 13 | 5 | 0.15 | 686-ZZC3P6QE6 | 6 | 13 | 5 | 0.15 |
| 687-Z | 7 | 14 | 5 | 0.15 | 687-ZC3 | 7 | 14 | 5 | 0.15 |
| 687-ZZ | 7 | 14 | 5 | 0.15 | 687-ZZC3 | 7 | 14 | 5 | 0.15 |
| 687-ZZC3P6QE6 | 7 | 14 | 5 | 0.15 | 688-Z | 8 | 16 | 5 | 0.2 |
| 688-ZC3 | 8 | 16 | 5 | 0.2 | 688-ZZ | 8 | 16 | 5 | 0.2 |
