| FAG NUP 304 E.TVP2 Bearing | 20 | 52 | 15 | FAG | Cylindrical Roller Bearings |
| STEYR NU304 Bearing | 20 | 52 | 15 | STEYR | Cylindrical Roller Bearings |
| NSK 6304-RS Bearing | 20 | 52 | 15 | NSK | Deep Groove Ball Bearings |
| NACHI NJ304E+HJ304E Bearing | 20 | 52 | 15 | NACHI | Cylindrical Roller Bearings |
| SKF NU 304 E CP* Bearing | 20 | 52 | 15 | SKF | Cylindrical Roller Bearings |
| NACHI 7304B Bearing | 20 | 52 | 15 | NACHI | Angular Contact Ball Bearings |
| SKF N 304 E Bearing | 20 | 52 | 15 | SKF | Cylindrical Roller Bearings |
| NSK N304 Bearing | 20 | 52 | 15 | NSK | Cylindrical Roller Bearings |
| NSK NSKNJ304ECP Bearing | 20 | 52 | 15 | NSK | Cylindrical Roller Bearings |
| KOYO 6304-2RZ Bearing | 20 | 52 | 15 | KOYO | Deep Groove Ball Bearings |