| SKF 21304 CC Bearing | 20 | 52 | 15 | SKF | Spherical Roller Bearings |
| KOYO 1304K+H304 Bearing | 20 | 52 | 15 | KOYO | Self-aligning Ball Bearings |
| NACHI 1204 K+H 204 Bearing | 20 | 52 | 15 | NACHI | Self-aligning Ball Bearings |
| SKF 6304-2Z Bearing | 20 | 52 | 15 | SKF | Deep Groove Ball Bearings |
| SKF *6304 Bearing | 20 | 52 | 15 | SKF | Deep Groove Ball Bearings |
| NSK 1304 Bearing | 20 | 52 | 15 | NSK | Self-aligning Ball Bearings |
| ZKL N304 Bearing | 20 | 52 | 15 | ZKL | Cylindrical Roller Bearings |
| SNR 6304-RS Bearing | 20 | 52 | 15 | SNR | Deep Groove Ball Bearings |
| STEYR NUP 304 Bearing | 20 | 52 | 15 | STEYR | Cylindrical Roller Bearings |
| KOYO NJ304E+HJ304E Bearing | 20 | 52 | 15 | KOYO | Cylindrical Roller Bearings |