| Fabricante | Referencia |
|---|---|
| Torrington | 105RJ02 |
| Alfatec | 63154 |
| GPZ Bearings | 42221 |
| Rollway Bearing Co. | MUL-221 |
| NSK | NJ221 |
| DAF-Truck | 584783 |
| SKC | 5966675 |
| NSK | NJ221 W (NSK) |
| SKF | NJ221-EC P (SKF) |
| RIV Officine di Villar Perosa | 18DAVQ |
| SNR | NJ221 |
| SKF | NJ221ECJ |
| ZF | 0635416018 |
| SKC | 3009187 |
| ZKL-ZVL | NJ221 |
| Steyr-Daimler-Puch | NJ221E/TGP1 |
| Fischer Bearings | NJL105 |
| Faun | 5032105 |
| Marlin-Rockwell Corp. | MR221G |
| Faun | 3195032105 |
| Steyr-Daimler-Puch | NJ221 |
| American Roller Bearing | CE221 |
