What does the speed ratio of the rear axle mean?
1 Answers
The speed ratio of the rear axle refers to the gear transmission ratio of the main reducer in the vehicle's drive axle. It is equal to the ratio of the rotational angular velocity of the drive shaft to that of the axle's half-shaft, and also equals the ratio of their rotational speeds. The rear axle speed ratio is an important parameter of the engine, also known as the main reduction ratio. The rear axle of a vehicle is equipped with a reducer to attenuate the rotational speed from the drive shaft. The speed ratio is the transmission ratio, and the set proportion varies according to the vehicle's condition. The optimal transmission ratio helps the engine operate under the best working conditions, minimizing gear wear.