| KOYO NJ304E Bearing | 20 | 52 | 15 | KOYO | Cylindrical Roller Bearings |
| BARDEN 7304C Bearing | 20 | 52 | 15 | BARDEN | Angular Contact Ball Bearings |
| SKF 6304 E TN9 Bearing | 20 | 52 | 15 | SKF | Deep Groove Ball Bearings |
| SKF NUP 304 E CP* Bearing | 20 | 52 | 15 | SKF | Cylindrical Roller Bearings |
| NSK N304 Bearing | 20 | 52 | 15 | NSK | Cylindrical Roller Bearings |
| STEYR 1204K+H204 Bearing | 20 | 52 | 15 | STEYR | Self-aligning Ball Bearings |
| KOYO 63042RU Bearing | 20 | 52 | 15 | KOYO | Deep Groove Ball Bearings |
| SKF NJ 304 E Bearing | 20 | 52 | 15 | SKF | Cylindrical Roller Bearings |
| MRC NJ 304 Bearing | 20 | 52 | 15 | MRC | Cylindrical Roller Bearings |
| NSK 1304K Bearing | 20 | 52 | 15 | NSK | Self-aligning Ball Bearings |