| 型号 | 内径(d) | 外径(D) | 宽度(B) | 密封类型 |
| R16ZZ | 25.4 | 50.8 | 12.7 | 金属密封 | R18 | 28.575 | 53.975 | 9.525 | 开式 |
| R18-2RS | 28.575 | 53.975 | 12.7 | 橡胶密封 | R18ZZ | 28.575 | 53.975 | 12.7 | 金属密封 |
| R20 | 31.75 | 57.15 | 9.525 | 开式 | R20-2RS | 31.75 | 57.15 | 12.7 | 橡胶密封 |
| R20ZZ | 31.75 | 57.15 | 12.7 | 金属密封 | R22 | 34.925 | 63.5 | 11.113 | 开式 |
| R22-2RS | 34.925 | 63.5 | 14.288 | 橡胶密封 | R22ZZ | 34.925 | 63.5 | 14.288 | 金属密封 |
| R24 | 38.1 | 66.675 | 11.113 | 开式 | R24-2RS | 38.1 | 66.675 | 14.288 | 橡胶密封 |