... .low noise, long life, 2.profession design, 3.good bearing, 4.steel material deep groove ball bearingOur main products include ... ,non-standard and special bearings.1)Bore diameter:3mm-50mm2)Bearing range:60series:606,607.608,6000,6001,6002,6003,6004 ... ,6015 62series:626,627,628,629,6200,6201,6202,6203,6204,6205,6206,6207,6208,6209,6210,6211,6212 63series:6300 ...