1.6000,6200,6300 6400 6800 6900serials 2.ISO9001:2008 ... 5. Z2V2, Z3V3,Z4V4 The purpose of a ball bearing is to reduce rotational friction and support radial and ... medical devices, motorbikes, textile machines, autos and other areas. deep groove ball bearingWe have Open, Z, ZZ, RS, 2RS,RZ, 2RZ. ... are divided into Z1V1,Z2V2,Z3V3.We produce 6000, 6200, 6300, 6400,6800 and 6900 seriesWe have specialists ...