| Manufacturer | Part Number |
|---|---|
| Torrington | 100RU03 |
| SKF | NU320 (SKF) |
| American Roller Bearing | CD320 |
| Bower Roller Bearing | MA1320EL |
| Rollway Bearing Co. | MUC-320 |
| Koyo | NU320 |
| NSK | NU320 |
| NTN | NU320 (NTN) |
| ZKL-ZVL | NU320 |
| NTN | NU320E |
| Steyr-Daimler-Puch | NU320E/JP1 |
| SKF | NU320-EC J (SKF) |
| SKF | NU320-EC M (SKF) |
| NSK | NU320 W (NSK) |
| Steyr-Daimler-Puch | NU320E/M6 |
| SKC | 5968336 |
