What does the term 'rear axle final drive' mean?

1 Answers
DiNevaeh
07/29/25 8:09pm
'Rear axle final drive' is a common term for the main reduction gear, which is a mechanism within the drive axle that alters torque and rotational speed. Its primary function is to increase the torque received from the transmission or universal drive shaft while reducing speed and changing the direction of torque transmission. The main reduction gear consists of one or several pairs of reduction gears, where power is input through the driving gear and output via the driven gear. As a key component in the drivetrain, the main reduction gear serves to reduce speed and increase torque. When the engine is longitudinally mounted, it also has the role of changing the direction of torque rotation. This is achieved by using a gear with fewer teeth to drive a gear with more teeth, thus achieving speed reduction. The use of bevel gears can change the direction of torque rotation.
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