| 轴承名称 | 新型号 | 旧型号 | 内径(mm) | 外径(mm) | 厚度(mm) | 参考型号 |
| BARDEN221HDF轴承 | 7221 C/DF | 336221 | 105 | 190 | 72 | 221HDF |
| SNR7221CDF轴承 | 7221 C/DF | 336221 | 105 | 190 | 72 | 7221CDF |
| GMNS6221CDF轴承 | 7221 C/DF | 336221 | 105 | 190 | 72 | S6221CDF |
| NACHI7221CDF轴承 | 7221 C/DF | 336221 | 105 | 190 | 72 | 7221CDF |
| KOYO7221CDF轴承 | 7221 C/DF | 336221 | 105 | 190 | 72 | 7221CDF |
| NTN7221CDF轴承 | 7221 C/DF | 336221 | 105 | 190 | 72 | 7221CDF |
| NSK7221CDF轴承 | 7221 C/DF | 336221 | 105 | 190 | 72 | 7221CDF |
| SKF7221CD/DF轴承 | 7221 C/DF | 336221 | 105 | 190 | 72 | 7221CD/DF |
| RHP7221X2DF轴承 | 7221 C/DF | 336221 | 105 | 190 | 72 | 7221X2DF |
| MRC221-RDF轴承 | 7221 C/DF | 336221 | 105 | 190 | 72 | 221-RDF |
