| FAG 32304 A+T2F D020 Bearing | 20 | 52 | 21 | FAG | Tapered Roller Bearings |
| NTN NUP 2304 Bearing | 20 | 52 | 21 | NTN | Cylindrical Roller Bearings |
| NSK NJ 2304 E Bearing | 20 | 52 | 21 | NSK | Cylindrical Roller Bearings |
| STEYR NJ 2304 E Bearing | 20 | 52 | 21 | STEYR | Cylindrical Roller Bearings |
| FAG NUP 2304 E Bearing | 20 | 52 | 21 | FAG | Cylindrical Roller Bearings |
| NSK NJ 2304 E +HJ 2304 E Bearing | 20 | 52 | 21 | NSK | Cylindrical Roller Bearings |
| NTN NJ2304E Bearing | 20 | 52 | 21 | NTN | Cylindrical Roller Bearings |
| NSK NU2304E Bearing | 20 | 52 | 21 | NSK | Cylindrical Roller Bearings |
| NSK NUP2304 Bearing | 20 | 52 | 21 | NSK | Cylindrical Roller Bearings |
| SKF 2304TN Bearing | 20 | 52 | 21 | SKF | Self-aligning Ball Bearings |