1. Excellent quality and competitive price 2. Precision level Z1V1, Z2V2, Z3V3 3. Ten years' experience ... , textile machines, autos and other areas. deep 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 ... , 6800 and 6900.You are welcome to visit and negotiate! types of bearing