... needs5. Can provide small & miniature standard and non-standard ball bearings.low vibration, low noise, high precision and durableApplicationUsage: ... medical facilities, communication devices, office facilities and motor industrydeep groove ball bearingWe have Open, Z, ZZ, RS, 2RS,RZ, 2RZ ... .The Vibrating grades are divided into Z1V1,Z2V2,Z3V Textile Machinery OUKIN Deep Groove Ball Bearing 628 Z