| Manufacturer | Part Number |
|---|---|
| Fischer Bearings | NUM100 |
| GPZ Bearings | 32320 |
| Torrington | 100RU03 |
| SKF | NU320 (SKF) |
| SKF | NU320-EC J (SKF) |
| SNR | NU320E G15 (SNR) |
| Hyatt | A1320WB |
| Bower Roller Bearing | MA1320EL |
| KOYO | NU320 |
| NSK | NU320 |
| NTN | NU320 (NTN) |
| RHP | NU320 |
| ZKL-ZVL | NU320 |
| Steyr-Daimler-Puch | NU320E/TGP1 |
| SKF | NU320-EC P (SKF) |
| NSK | NU320 ET (NSK) |
| NSK | NU320 W (NSK) |
| Marlin-Rockwell Corp. | MR320E |
| Rollway Bearing Co. | MUC-320 |
| Steyr-Daimler-Puch | NU320E/JP1 |
| RIV Officine di Villar Perosa | 21DBVP |
| Fiat | 1743 |
| Tamrock | Sandvik | 802 024 29 |
| SKC | 5968329 |
| ZF | 0635410034 |
