The core component of the truck drive axle, together with the planetary gears, forms the differential assembly. It is responsible for distributing the torque from the driveshaft to the left and right half-shafts, allowing the wheels on both sides to rotate at different speeds when the vehicle is turning, effectively reducing tire wear. It is typically manufactured using high-strength alloy steel through a carburizing and quenching process, resulting in wear-resistant and impact-resistant gear surfaces. This component directly affects transmission efficiency and driving stability, and is a crucial guarantee for the reliable passage of heavy-duty trucks in complex road conditions.
