Miniature ball bearingType: 60 series, 62 series, R series, MR series, Flange seriesNumber of row: single rowCorresponding models: 6000~Material: Gcr15 (chrome Steel) China, (AISI)52100 American, (Din)100Cr6 Germany, AISI440C, AISI304, AISI316Shield/closure: plain(Open), Z, ZZ, RS, 2RS, UGVibration...