Product Description
1.Material:Gcr15 high carbon chrome bearing steel (AISI52100) JIS SUJ2
2.Grade: G10 Size:2.0mm,2.381mm(3/32"),3.175mm(1/8"),3.5mm,3.969(5/32"),4.763mm(3/16"), 5.953mm(15/64"),6.35(1/4") Gauge: ±12 Subgauge:±0.4
3.the main steps to produce the ball: heading,polishing,heat treament,grinding,lapping,packing
4.the product is: possible hardness, technical characteristics,perfectly shiny, compact and defect-free surface,low noise
5.HRC: 62-66 Noise: 26-30db VDWS: bellow 0.15um Ra: 0.011-0.015um VDWL: bellow 0.20um