1.3/16 bearing balls used for bearings 2.Hardness:HRC58-61 3.High precision,ABEC-1,P0 ... 3/16 inch ,4.763mm ball bearing steel balls,used for bearings ABEC-1,P0 high precision ,good quality ,fast delivery timechrome ... high hardness.7)Using:1. General industry for automobile, motorcycle, bicycle manufacturing, special bearings & micro – ball for the electronics industry.. 2. High accuracy ...