| 轴承名称 | 新型号 | 旧型号 | 内径(mm) | 外径(mm) | 厚度(mm) | 参考型号 |
| BARDEN2221HDF轴承 | 7221 AC/DF | 346221 | 105 | 190 | 72 | 2221HDF |
| KOYO7221DF轴承 | 7221 AC/DF | 346221 | 105 | 190 | 72 | 7221DF |
| SKF7221ACD/DF轴承 | 7221 AC/DF | 346221 | 105 | 190 | 72 | 7221ACD/DF |
| DKFB7221SPB·WF轴承 | 7221 AC/DF | 346221 | 105 | 190 | 72 | B7221SPB·WF |
| MRC7221DF轴承 | 7221 AC/DF | 346221 | 105 | 190 | 72 | 7221DF |
| SNR7221HDF轴承 | 7221 AC/DF | 346221 | 105 | 190 | 72 | 7221HDF |
| NTN7221DF轴承 | 7221 AC/DF | 346221 | 105 | 190 | 72 | 7221DF |
| NSK7221A5DF轴承 | 7221 AC/DF | 346221 | 105 | 190 | 72 | 7221A5DF |
| NACHI7221DF轴承 | 7221 AC/DF | 346221 | 105 | 190 | 72 | 7221DF |
