1.6000,6200,6300 6400 6800 6900serials 2.ISO9001:2008 3. ... , medical devices, motorbikes, textile machines, autos and other areas. deep groove ball bearingWe have Open, Z, ZZ, RS, 2RS,RZ, 2RZ. ... grades are divided into Z1V1,Z2V2,Z3V3.We produce 6000, 6200, 6300, 6400,6800 and 6900 seriesWe have specialists for ... 0086-29-88316863FAX:0086-29-88327812WEBSITE: www.xmecbearings.com deep groove ball bearings