[Title]: Demand steel balls with diameters of 25.4-50.8mm; rollers with diameter <22mm.

Buy High carbon chromium bearing steel with high hardenability and high and uniform hardness after heat treatment. Wear resistance is better than GCr9, high contact fatigue strength, good dimensional stability and corrosion resistance, moderate cold deformation plasticity, general machinability, poor weldability, and sensitivity to white spot formation. In the manufacture of ball bearings, it is used to roll H-grade to C-class bearing sleeves with wall thickness 12mm and outer diameter <250mm, steel balls with diameters of 25.4-50.8mm; rollers with diameter <22mm.