| NACHI 7304 AC Bearing | 20 | 52 | 15 | NACHI | Angular Contact Ball Bearings |
| SKF 6304 Bearing | 20 | 52 | 15 | SKF | Deep Groove Ball Bearings |
| FAG 6304-ZN Bearing | 20 | 52 | 15 | FAG | Deep Groove Ball Bearings |
| KOYO 1204K+H204 Bearing | 20 | 52 | 15 | KOYO | Self-aligning Ball Bearings |
| NACHI NJ304+HJ304 Bearing | 20 | 52 | 15 | NACHI | Cylindrical Roller Bearings |
| STEYR NUP304 Bearing | 20 | 52 | 15 | STEYR | Cylindrical Roller Bearings |
| NSK 1304 K Bearing | 20 | 52 | 15 | NSK | Self-aligning Ball Bearings |
| KOYO 6304-2RS Bearing | 20 | 52 | 15 | KOYO | Deep Groove Ball Bearings |
| NACHI NUP 304 E Bearing | 20 | 52 | 15 | NACHI | Cylindrical Roller Bearings |
| KOYO 6304 RS Bearing | 20 | 52 | 15 | KOYO | Deep Groove Ball Bearings |