| KOYO 1304 K Bearing | 20 | 52 | 15 | KOYO | Self-aligning Ball Bearings |
| NACHI 7304 C Bearing | 20 | 52 | 15 | NACHI | Angular Contact Ball Bearings |
| NSK 1304K Bearing | 20 | 52 | 15 | NSK | Self-aligning Ball Bearings |
| SKF 7304 BEP Bearing | 20 | 52 | 15 | SKF | Angular Contact Ball Bearings |
| RHP 6304-Z Bearing | 20 | 52 | 15 | RHP | Deep Groove Ball Bearings |
| STEYR NUP304 Bearing | 20 | 52 | 15 | STEYR | Cylindrical Roller Bearings |
| SKF *6304 Bearing | 20 | 52 | 15 | SKF | Deep Groove Ball Bearings |
| NACHI 6304-RS Bearing | 20 | 52 | 15 | NACHI | Deep Groove Ball Bearings |
| SKF W6304-2Z Bearing | 20 | 52 | 15 | SKF | Deep Groove Ball Bearings |