Deep Groove Ball Bearing 62304 2RS Sealed 20x52x21mm for Electric Motors and Heavy Pumps Product Overview The 62304 2RS Deep Groove Ball Bearing is a wide-series single-row ball bearing equipped with dual contact rubber seals for superior protection against dust and moisture. Engineered to handle heavy radial loads and moderate axial loads in both directions, it is widely used in industrial electric motors, centrifugal pumps, and automotive transmissions where enhanced