| STEYR NU 304 Bearing | 20 | 52 | 15 | STEYR | Cylindrical Roller Bearings |
| STEYR 6304-2RS Bearing | 20 | 52 | 15 | STEYR | Deep Groove Ball Bearings |
| SNR 6304-Z Bearing | 20 | 52 | 15 | SNR | Deep Groove Ball Bearings |
| RHP QJ304 Bearing | 20 | 52 | 15 | RHP | Angular Contact Ball Bearings |
| SKF 1304 E TN9 Bearing | 20 | 52 | 15 | SKF | Self-aligning Ball Bearings |
| TORRINGTON 6304 Bearing | 20 | 52 | 15 | TORRINGTON | Deep Groove Ball Bearings |
| FAG 1204K+H204 Bearing | 20 | 52 | 15 | FAG | Self-aligning Ball Bearings |
| MRC NF304 Bearing | 20 | 52 | 15 | MRC | Cylindrical Roller Bearings |
| RHP NF304 Bearing | 20 | 52 | 15 | RHP | Cylindrical Roller Bearings |
| NACHI 6304 Bearing | 20 | 52 | 15 | NACHI | Deep Groove Ball Bearings |