Measures to make long-term locomotive traction motor vehicle taken without disassembly for rotor vents dust accumulation problems, the development of a fully enclosed traction motor; for bearing lubrication problems, the development of lubricating the traction motors. Induction motor vehicles of the characteristics of both lines of electric vehicle traction motor structure. Traction motor bearing on the use of the environment has the following characteristics. Traction motor is mounted on the bogie, and through couplings, gears and wheels mechanically and directly connected, if the bearing burning, rolling stock can not

Crankcase structure can simplify the use of grease lubricated labyrinth seal is open; unrelated uses speed and rolling stock, the use of speed can exceed manufacturer catalog bearing grease lubrication permissible limits documented about 6000r / min. In addition, the traction motor manufacturing is completed, should be implemented 1115 times the speed of rotation test; due to downsizing, part of the rise in temperature of its heat, bearing grease is heated; traction motor cooling method commonly used self-ventilated, in the shaft through the side the cylindrical roller bearings on the use of machines to take the necessary measures to negative as dust, rainwater intrusion prevention. Ensure traction motor lubrication life measures the standard crankcase structure.

To ensure that the bearing lubrication life, it is important to choose a good crankcase structure, bearings (including insulated bearings) and grease brand these three elements, which measures follows. Standard crankcase lubricating structure to ensure the life of the measures taken to ensure the lubrication life to prevent external dust and water intrusion and sealed to prevent the increase of the initial amount of grease and base oil outflow in the crankcase structure to take the necessary measures.