Gr15 Needle bearings with inner rings most widely used in different types of automobiles, machine tools, textile machinery, printing machinery, etc.

Outer ring and inner ring

Material: GCr15 chrome steel
Processing: grinding after turning
Heat treatment: quenching (special requirements for high temperature tempering)


Material: generally ST12 low carbon steel
Processing: punching after punching, drawing and forming
Heat treatment: carburizing; blackening

Roller pin

Material: GCr15 bearing steel
Processing: Grinding by a grinder
Heat treatment: quenching HRc60-64