| 型号 | 外形尺寸(mm) | |||
| d | D | B | rs min | |
| 6921-2RS | 105 | 145 | 20 | 1.1 | 6921-2RSC3 | 105 | 145 | 20 | 1.1 |
| 6921-RS | 105 | 145 | 20 | 1.1 | 6921-RSC3 | 105 | 145 | 20 | 1.1 |
| 6922-2RS | 110 | 150 | 20 | 1.1 | 6922-2RSC3 | 110 | 150 | 20 | 1.1 |
| 6922-RS | 110 | 150 | 20 | 1.1 | 6922-RSC3 | 110 | 150 | 20 | 1.1 |
| 6922-Z | 110 | 150 | 20 | 1.1 | 6922-ZC3 | 110 | 150 | 20 | 1.1 |
| 6922-ZZ | 110 | 150 | 20 | 1.1 | 6922-ZZC3 | 110 | 150 | 20 | 1.1 |
