high precision bearing 1.Quality:ISO9001:2000 certificate 2.Large sales make our prices super low. high precision bearing,ball bearings,roller bearings:A ... : Inner Ring Bore Diameter from 1mm-200mmB: Bearing range:1)60series: 602 ... , RZ, 2RZ, Z, ZZ, N, M are all available.D: Precision Grade: P0, P6, P5, P4 are all available,EMQ motor ...