... Deep groove ball bearings 6300 1.Brand:SKF,NSK,ZWZ 2.Quality standard:ISO9001:2000 3.satisfactory of quality manufacture ball bearing 6300Our main products include deep groove ball ... and special bearings.1--Bore diameter:3mm-50mm2--Bearing range:60series:606,607.608,6000,6001,6002, ... 2RS,Z,ZZ,RZ,2RZ,N,NR4--Material:Gcr155--Quality standard:ISO9001:20006--Chief uses:automatic transmission mechanisms, ...