| SKF 6304-2Z Bearing | 20 | 52 | 15 | SKF | Deep Groove Ball Bearings |
| MAC N 304 Bearing | 20 | 52 | 15 | MAC | Cylindrical Roller Bearings |
| NACHI 7304 AC Bearing | 20 | 52 | 15 | NACHI | Angular Contact Ball Bearings |
| FAG 21304 CC Bearing | 20 | 52 | 15 | FAG | Spherical Roller Bearings |
| NTN 1204 K+H 204 Bearing | 20 | 52 | 15 | NTN | Self-aligning Ball Bearings |
| STEYR 1304 Bearing | 20 | 52 | 15 | STEYR | Self-aligning Ball Bearings |
| RIV N 304 Bearing | 20 | 52 | 15 | RIV | Cylindrical Roller Bearings |
| SKF 7304 BEC BPH* Bearing | 20 | 52 | 15 | SKF | Angular Contact Ball Bearings |
| KOYO NJ 304 Bearing | 20 | 52 | 15 | KOYO | Cylindrical Roller Bearings |
| KOYO NJ304 R+HJ304 R Bearing | 20 | 52 | 15 | KOYO | Cylindrical Roller Bearings |