1,Long working life 2,Anti-rust and waterproof 3,Low ... , autos and other areas. deep groove ball bearingWe have Open, Z, ZZ, RS, 2RS,RZ, 2RZ.The grades of our products are P0;The ... main products are deep groove ball bearings with high accuracy and low noise, especially small & miniature standard and non-standard deep groove ball bearings. The main series we produce ...