... design, 3.good bearing, 4.steel material deep groove ball bearingOur main products include deep groove ball bearings,miniature thin-wall bearings,and ... -standard and special bearings.1)Bore diameter:3mm-50mm2)Bearing range:60series:606,607.608,6000,6001,6002,6003,6004,6005 ... form:OPEN,RS,2RS,Z,ZZ,RZ,2RZ,N,NR4)Material:Gcr155)Quality standard:ISO9001:20006)Chief uses:automatic transmission mechanisms ...