EMQ motor quality Low noise and low vibration Long life and high speed Using widely Deep groove ball bearings : ... RZ, 2RZ, RS, 2RS, RW, 2RW, 5, EMQ motor quality 6, Low noise and low vibration 7, Long life ... 8, ISO9001 certificate9, OEM and ODM are accepted10, Ball bearings snap ring: N, NR11, Tolerance: ABEC-1 ... inquiry with details directly. Deep groove ball bearing, EMQ ball bearing,motor bearing