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What does the term 'final drive' mean in cars?

1 Answers

StDelilah

08/29/25 6:14am

In automotive terminology, 'final drive' is a colloquial name for the main reduction gear. The technical term for the final drive is the final reduction ratio gear. Since the transmission is also referred to as the 'gear box', and the teeth on the gears inside the transmission mesh together like human teeth, fitting tightly without gaps, and the final reduction ratio gear is the last stage of the reduction mechanism, it is called the 'final drive'. Here is some related information about the main reduction gear: 1. Composition: The main reduction gear consists of one or several pairs of reduction gears. 2. Function: The main reduction gear within the drive axle can alter the torque and rotational speed mechanism. Its primary function is to increase the torque coming from the transmission or universal drive while reducing the rotational speed and changing the direction of torque transmission.

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