| 主要尺寸 (mm) | 型号 | |||
| d | D | B | r(最小) | 圆柱孔 |
| 20 | 47 | 14 | 1 | 20204T | 20 | 52 | 15 | 1.1 | 20304T |
| 25 | 52 | 15 | 1 | 20205T | 25 | 62 | 17 | 1.1 | 20305T |
| 25 | 80 | 21 | 1.5 | 20405MB | 30 | 62 | 16 | 1 | 20206T |
| 30 | 72 | 19 | 1.1 | 20306T | 30 | 90 | 23 | 1.5 | 20406MB |
| 35 | 72 | 17 | 1.1 | 20207T | 35 | 80 | 21 | 1.5 | 20307T |
| 35 | 100 | 25 | 1.5 | 20407MB | 40 | 80 | 18 | 1.1 | 20208T |
