| RHP 6304-Z Bearing | 20 | 52 | 15 | RHP | Deep Groove Ball Bearings |
| NSK 1304K Bearing | 20 | 52 | 15 | NSK | Self-aligning Ball Bearings |
| SKF N 304 E Bearing | 20 | 52 | 15 | SKF | Cylindrical Roller Bearings |
| KOYO 6304-2Z Bearing | 20 | 52 | 15 | KOYO | Deep Groove Ball Bearings |
| SNR 6304N Bearing | 20 | 52 | 15 | SNR | Deep Groove Ball Bearings |
| NACHI NU 304 E Bearing | 20 | 52 | 15 | NACHI | Cylindrical Roller Bearings |
| SKF 6304-2RSL Bearing | 20 | 52 | 15 | SKF | Deep Groove Ball Bearings |
| ZKL N 304 Bearing | 20 | 52 | 15 | ZKL | Cylindrical Roller Bearings |
| SNR 7304 B Bearing | 20 | 52 | 15 | SNR | Angular Contact Ball Bearings |
| NTN 1304 Bearing | 20 | 52 | 15 | NTN | Self-aligning Ball Bearings |