... ,6300 series... Material:Chrome Steel GCR15 High quality & best prices High speed Deep Groove Ball Bearing1.Model No.: 6306 2RS2.Material ... C4,C57.Vibration:Z1V1,Z2V2,Z3V38.Quality:Low noise, Low vibration, Long life, High speed rotation, Low friction torque ... noise and high speed electric motors, Automotive components, Pumps, Machinery... 6306 2RS Chrome steel Deep Groove Ball Bearing with Best Prices ...