1.Material:Gcr15 high carbon chrome bearing steel (AISI 52100)
2.Grade:G10 Z4 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 product is: possible hardness, technical characteristics,perfectly shiny, compact and defect-free surface,low noise
4.Miniature bearings are used widely in OA equipment, such as in facsimile machine drums and personal computer disc drives, and small bearings with diameters of 8mm-9mm are commonly used on the rotating shafts of refrigerators, vacuum cleaners and washing machines as well as in the magnetic heads of videotape recorders, where high precision is required.
5.HRC:62-66 Noise:26-30db VDWS: bellow 0.15um VDWL:bellow 0.20um