Main parameters:

Material: GCR15 (Equal to AISI52001)
Hardness: HRC60-65
Out diameter tolerance: ±0.005mm
Length tolerance: ±0.03mm
Parallelism: 0.02mm
Perpendicularity: 0.02mm
Roughness: Ra0.16um

Main uses:

1: Chain saw guide bars, chainsaw.
2: Tea-picking machine，lawnmower.
3: Gravity Sensor for mobile phone.
4: Electronic products.
5: One-way bearing, one-way clutch. 
6: Overrunning clutch, wedge type one-way bearing.
7: Small bearings, mini bearings, ultra-thin bearings.
8: Precision gasket shims.