Rear Leaf Spring WG9725520289 Sinotruk

Product Introduction

This rear leaf spring is a multi-leaf, heavy-duty suspension component designed for heavy-duty trucks. It consists of multiple high-strength steel leaves of graduated lengths, stacked and clamped together with metal bands to form a curved, load-bearing structure. The entire assembly is finished with a silver-gray anti-corrosion coating, and marked with specifications and branding for easy identification and traceability.

Performance

Manufactured from premium-grade spring steel (e.g., 60Si2Mn) and subjected to controlled heat treatment, this leaf spring delivers exceptional tensile strength, fatigue resistance, and consistent spring rate. It is engineered to withstand the extreme dynamic loads, impacts, and torsional forces encountered in heavy-duty operation, maintaining its structural integrity in temperatures ranging from -40°C to 120°C. The anti-corrosion coating provides superior protection against rust, salt spray, and chemical exposure, ensuring long-term durability in diverse operating environments. The multi-leaf design offers progressive stiffness, optimizing both ride comfort and load-carrying capacity.

Core Function

1. Serves as the primary load-bearing and suspension component for the rear axle, supporting the vehicle’s weight and providing a smooth, stable ride.

2. Absorbs and dissipates road impacts and vibrations, reducing stress on chassis and suspension components and extending their service life.

3. Maintains proper ride height and suspension geometry, ensuring consistent vehicle handling and stability, especially under heavy loads or during cornering, braking, and acceleration.

4. Works in conjunction with shock absorbers to control excessive suspension movement, preventing wheel hop and maintaining tire contact with the road surface for improved traction and safety.