| Factory | Number | Cross Interchange Type | Relevance |
|---|---|---|---|
| NSN | 3110006186135 | Direct Cross Interchange | 21 |
| SKF | 7221BG | Direct Cross Interchange | 21 |
| NSK-RHP | 7221BDU | Direct Cross Interchange | 21 |
| FAG | 7221BUO | Direct Cross Interchange | 21 |
| MCGILL | 7221D | Direct Cross Interchange | 21 |
| MRC | 7221PDT | Direct Cross Interchange | 21 |
| MRC | 7221PDF | Direct Cross Interchange | 21 |
| MRC | 7221PDB | Direct Cross Interchange | 21 |
| MRC | 7221PD | Direct Cross Interchange | 21 |
| FAFNIR | 7221WNMBRSU | Direct Cross Interchange | 21 |
| FAFNIR | 7221PWDU | Direct Cross Interchange | 21 |
| NDH | U30221 | Direct Cross Interchange | 21 |
| NDH | 30221DT | Direct Cross Interchange | 21 |
| NDH | 30221DF | Direct Cross Interchange | 21 |
| NDH | 30221DB | Direct Cross Interchange | 21 |
| NDH | 20221DT | Direct Cross Interchange | 21 |
| NDH | 20221DF | Direct Cross Interchange | 21 |
| NDH | 20221DB | Direct Cross Interchange | 21 |
| RHP | 7221BDU | Direct Cross Interchange | 21 |