Features of roller: high rigidity (HRC60～64), high wear-resistance, long-duration for rolling depression, surface roughness Ra≤0.2
Roller is a hard steel cylinder on which a heavy object can be placed for movement to reduce frictional forces. Its rolling surface is of a spherical shape. Roller is mainly used for needle roller bearings, cardan joint needle roller bearings and needle roller thrust bearings. Besides, roller components can also be used directly in the machine.

Type of roller products: full convex super-precision roller, super-precision roller with correction line and logarithmic curve-shaped super-precision roller, etc

Application scope of roller: high precision needle roller and roller products produced are widely used in fields of automobiles, subways, machine tools, engineering machinery, bearings and electrical apparatuses, etc.