Material:Gcr15 high carbon chrome bearing steel (AISI E52100)
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: ±12um Subgauge:±0.4um
the main steps to produce the ball: heading,polishing,heat treament,grinding,lapping,packing
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
the product is: possible hardness, technical characteristics,perfectly shiny, compact and defect-free surface,low noise
HRC:62-66
Noise: 26-30db
VDWS: bellow 0.15um
Fenghua Jinying Ball Of Steel Co.,Ltd.
Ms. Aileen(overseas sales)
No.66 Yuanfeng Road, eastern economic Development Zone, Fenghua, Ningbo, Zhejiang,
China (Mainland)
Zip/Postal Code:315511
Tel:86-574-88930552
Fax:86-574-88933338
Mobile:13586841377


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