... in chemical Deep groove ball bearing RLS,long life and low noise Material: chrome steel STEEL NO.COMPONENTCSiMnCrMoPS CuNiGCr150 ... ,6800Series,6900Series,1600Series,1600Series, wider Series, Inch R series,MR Series,RLS series,RMS seriesSpecification:1) Open, Z, ZZ ... Motor bearings, 6) Material: Chrome steel 157) Long life and good hand feelingDetailed size: Bearing No Dimensions(mm) Weight (kg ...