... 1.3/16 bearing balls used for bearings 2.Hardness:HRC58-61 ... inch ,4.763mm ball bearing steel balls,used for bearings ABEC-1,P0 high precision ,good quality ... Using:1. General industry for automobile, motorcycle, bicycle manufacturing, special bearings & micro – ball for the electronics industry.. 2. High ... , low noise special bearing 4. Ball valves for liquid and gas etc.8)packing:inner packing:plastic ...