| 型号 | 基本尺寸(mm) | |||
| 圆柱孔 | 圆锥孔 | d | D | B |
| 21308 E1 | 21308 E1K | 40 | 90 | 23 | 21308 MB/W33 | 21308 MBK/W33 | 40 | 90 | 23 |
| 21309 CA/W33 | 21309 CAK/W33 | 45 | 100 | 25 | 21309 CC/W33 | 21309 CCK/W33 | 45 | 100 | 25 |
| 21309 E | 21309 EK | 45 | 100 | 25 | 21309 E1 | 21309 E1K | 45 | 100 | 25 |
| 21309 MB/W33 | 21309 MBK/W33 | 45 | 100 | 25 | 21310 CA/W33 | 21310 CAK/W33 | 50 | 110 | 27 |
| 21310 CC/W33 | 21310 CCK/W33 | 50 | 110 | 27 | 21310 E | 21310 EK | 50 | 110 | 27 |
| 21310 E1 | 21310 E1K | 50 | 110 | 27 | 21310 MB/W33 | 21310 MBK/W33 | 50 | 110 | 27 |
