20CrMnTi carburizing quenching and grinding gear of planetary gear reducer has the characteristics of small volume, light weight, high load carrying capacity, long service life, stable operation, low noise, large output torque, high speed ratio, high efficiency and performance safety. It has the characteristics of power split and multi-tooth meshing. It is a new type reducer with wide versatility. The maximum input power is 104 kW. Suitable for lifting and transportation, engineering machinery, metallurgy, mining, petrochemical, construction machinery, light industry and textile, medical equipment, instruments and meters, automobiles, ships