... allowance no burrs,no holes,smooth and bea Eccentric bearing raceToleranceAs you drawing and different series consider different ... we had better check face by faceSeries1.Deep groove ball bearing: 6000series, 6200series, 6300series, 6400 series, 6800 series, ... UCP series, UCF series, UCFL series7.Self aligning ball bearing: 1200series, 1300series, 2200series, 2300series Ring MaterialChrome Steel , ...