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The structure and working principle of the main reducer

final reduction drive (final reduction drive) A mechanism in the drive axle that can change the torque and speed. The basic function is to increase the torque from the transmission or universal transmission, while reducing the speed and changing the direction of the torque transmission. The main reducer is composed of one or several pairs of reduction gear pairs. The power is input by the driving gear and output by the driven gear.

The main reducer is the main component that reduces the speed and increases the torque in the drive train, and also has the effect of changing the direction of torque rotation when the engine is positioned vertically. It relies on the gear with fewer teeth and more teeth of the gear to achieve deceleration, the use of bevel gear transmission can change the direction of torque rotation. The position of the main reducer before the power is shunt to the drive wheel is conducive to reducing the torque transmitted by the transmission components in front of it (such as the clutch, transmission, drive shaft, etc.), thus reducing the size and quality of these components.