Product Description
1.Material:Gcr15 high carbon chrome bearing steel
2.Grade: G10,G5
Size:3.5mm,Gauge: ±12 Subgauge:±0.4
3.the main steps to produce the ball: heading,polishing,heat treament,grinding,lapping,packing
4.the special and and fine producing-technique;the tiptop production equipment,like:super-fine dringding machine from Germany,resin super-fine grinding machine from Japan; the precision test equipment,like:automatic stee-ball shape tester,Single&Double-view metalloscope,Rockwell & Vickers hardness tester,stee-ball vibration measurer,roundness meter and etc;and an appropriate scale of operation
5.the product is: possible hardness, technical characteristics,perfectly shiny, compact and defect-free surface,low noise
6.HRC:62-66 Noise:26db-30db VDWS:bellow 0.15um VDWL: bellow 0.20um