| NACHI 1304K Bearing | 20 | 52 | 15 | NACHI | Self-aligning Ball Bearings | 
    | KOYO NU 304 Bearing | 20 | 52 | 15 | KOYO | Cylindrical Roller Bearings | 
    | NTN NUP 304 E Bearing | 20 | 52 | 15 | NTN | Cylindrical Roller Bearings | 
    | MRC 6304 N Bearing | 20 | 52 | 15 | MRC | Deep Groove Ball Bearings | 
    | FAG NJ 304 E Bearing | 20 | 52 | 15 | FAG | Cylindrical Roller Bearings | 
    | SKF 6304-ZN Bearing | 20 | 52 | 15 | SKF | Deep Groove Ball Bearings | 
    | FLT N304 Bearing | 20 | 52 | 15 | FLT | Cylindrical Roller Bearings | 
    | TORRINGTON 7304C Bearing | 20 | 52 | 15 | TORRINGTON | Angular Contact Ball Bearings | 
    | NACHI 7304 B Bearing | 20 | 52 | 15 | NACHI | Angular Contact Ball Bearings | 
    | NTN 6304-2ZN Bearing | 20 | 52 | 15 | NTN | Deep Groove Ball Bearings |