Bearing Steel Solid Precision Large Steel Ball 38.5mm Single 230g*2pcs Ball GCR15 Ball(30mm/pcs110克)

Whether it is a standard part: yesStandard GB308-2002In line with ISO3290-1998, AFMBA1989, DIN5401-93 and other international standards.G means rolling bearing steel, and CR means that the alloying element contained is ferrochromium. gcr15 means bearing steel containing 1.5% CR.Bearing steel material is not waterproof and rust-proof, please pay attention to maintenance during use

• Accuracy: G10/Tolerance: ±0.002um
• High carbon chromium bearing steel>GCR15
• Exquisite appearance; precise hydraulic pressure, stable structure, polished and polished; high quality and beautiful appearance!
• Hardness; HRC60-63 degrees
• These bearing balls are installed between the inner ring and the outer ring to reduce friction when the bearing rotates. It can strength the protection to machine and extend the service life.[Applications]: It can be used in humid environments. Suitable for auto parts, bicycles, valves, refrigerators, air conditioners, bearings, photographic equipment, drawer slides and many other applications.