| 型号 | 外形尺寸(mm) | |||
| d (in) | d | D (in) | D | |
| SR0 | 3/64 | 1.191 | 5/32 | 3.969 | SR1 | 0.055 | 1.397 | 3/16 | 4.763 |
| SR133 | 3/32 | 2.381 | 3/16 | 4.763 | SR1-4 | 5/64 | 1.984 | 1/4 | 6.35 |
| SR144 | 1/8 | 3.175 | 1/4 | 6.35 | SR1-5 | 3/32 | 2.381 | 5/16 | 7.938 |
| SR155 | 5/32 | 3.969 | 5/16 | 7.938 | SR156 | 3/16 | 4.763 | 5/16 | 7.938 |
| SR166 | 3/16 | 4.763 | 3/8 | 9.525 | SR168 | 1/4 | 6.35 | 3/8 | 9.525 |
| SR188 | 1/4 | 6.35 | 1/2 | 12.7 | SR2 | 1/8 | 3.175 | 3/8 | 9.525 |
