China OEM Surface Hardening 4140 Ball Mill Big Forged Spur Gear Wheel Pinion Gear Product Description We can produce large forging,casting and welding gears according to customer's drawings.According to the ... Read More
Pinion gear material 42CRMO STEEL DATA CHEMICAL LIST C : 0.38-0.45% Si: 0.17-0.37% Mn: 0.50-0.80% S : Allow residual content 45 Akv (J): Impact absorbing energy Akv(J): >63 Impact toughness value kv (J/cm2): ... Read More