What Does the Rear Axle Ratio of a Truck Mean?

[Jacob]

Truck rear axle ratio refers to the gear transmission ratio of the main reducer in the truck's drive axle, which is equal to the ratio of the rotational angular velocity of the driveshaft to the rotational angular velocity of the axle half-shaft. Below is relevant information about the rear axle ratio: 1. Key Factors: The rear axle ratio is related to the gears. The power output from the engine and transmission acts on the driveshaft, which rotates to transmit power to the pinion gear of the main reducer, driving the ring gear of the main reducer to rotate and subsequently turning the half-shaft. 2. Calculation Formula: Number of teeth on the ring gear of the main reducer ÷ Number of teeth on the pinion gear of the main reducer. In simple terms, when the driveshaft rotates N times to make the half-shaft rotate once, this N is the rear axle ratio.