... your needs5. Can provide small & miniature standard and non-standard ball bearings.low vibration, low noise, high precision and durableApplicationUsage: household ... , medical facilities, communication devices, office facilities and motor industrydeep groove ball bearingWe have Open, Z, ZZ, RS, 2RS,RZ, 2RZ.N ... ,NZ.The grades of our products are P0,P6,P5,P4.The Vibrating grades ...