Drive system used in railway, such as gear box or traction motor, must have the characteristic of strong power, environmental protection, cost effectiveness, and little maintenance. These requirements are more demanding than other industries, because of the importance of railway vehicle. High-speed trains demand long maintenance intervals and high reliability.
Railway industry drive system is used in the traction motor or internal combustion engine torque which is transferred from the gearbox to wheel set, usually runs at a high speed.
Gear box Used for railway power drive system must be strong, environmental protection, cost-effective, and little maintenance. These requirements are more demanding than cars, such as: long maintenance cycle. Although the new main locomotives are often under maintenance, often after the running 1 million to 1 million kilometers to have the main maintenance services. These locomotives run as high as 1000 kilometers a day on average. Super high speed train¡¯s speed can reach 350 km/h, running mileage is longer. Two main applications : namely the ac traction system and low floor public transport vehicles, have brought fundamental changes for driver design