| Manufacturer | Part Number |
|---|---|
| RIV Officine di Villar Perosa | 21DBVZ |
| American Roller Bearing | CDA320 |
| Torrington | 100RT03 |
| Steyr-Daimler-Puch | NUP320 |
| GPZ Bearings | 92320 |
| Steyr-Daimler-Puch | NUP320E/JP1 |
| SKF | NUP320 |
| SKC | 9008632 |
| NSK | NUP320 |
| SNR | NUP320 (SNR) |
| SKF | NUP320-EC J (SKF) |
| Fischer Bearings | NUPM100 |
| NSK | NUP320 ET (NSK) |
