Gear Materials

Gear commonly used steel tempered steel, hardened steel, carburizing and nitriding steels. Slightly lower strength than cast steel, forged steel, commonly used in large size gears; poor mechanical properties of grey cast iron, open gear drives that can be used for light loads; nodular cast iron parts to replace steel gear plastic gear used for light loads and requirements where low noise, paired with steel gears of gear with good thermal conductivity.

Gear in the future is to overload, high speed, high precision and high efficiency, direction, and small size, light weight, long life and reliability.