Long Life Suspension Parts Leaf Spring For Trucks
Product positioning:Designed for heavy-duty suspension systems in trucks, trailers, and commercial vehicles, providing reliable load support, durability, and excellent shock absorption. Ideal for harsh working conditions requiring high fatigue resistance and long service life.
Delivery time: 7 to 25 days
Material:60Si2Mn is widely used for heavy-duty leaf springs. For higher fatigue resistance or toughness, consider 55Cr3 or SUP9. 65Mn suits lighter loads.
SKU: B04200602
Product Detailed Description
Our leaf spring is a critical suspension component designed to support heavy loads, absorb shocks, and ensure vehicle stability across various transportation applications. Manufactured with advanced materials and precision engineering, it provides durability, reliability, and superior performance in demanding environments.
Material & Manufacturing
High-Quality Alloy Steel:
Made primarily from 60Si2Mn alloy spring steel, known for excellent tensile strength, fatigue resistance, and toughness. The steel undergoes stringent heat treatment processes, including quenching and tempering, to enhance hardness and elasticity.
Precision Forming:
Each leaf is cold-rolled and carefully shaped to exact dimensions to ensure uniform stress distribution and optimal spring action.
Surface Treatment:
Shot peening and anti-corrosion coatings improve fatigue life and resistance to environmental wear.
Design & Structure
Multi-Leaf Stack:
Consists of several layered steel strips ("leaves") arranged in a tapered fashion. The varying thickness and length of leaves provide progressive spring rates, adapting to different load conditions.
Clip & Center Bolt:
Secure the leaves together, maintaining alignment and preventing lateral displacement during operation.
Eyelets & Bushings:
Reinforced eyes at both ends accommodate mounting bolts and bushings to reduce friction and wear during movement.
Performance Characteristics
Load Bearing Capacity:
Engineered to carry heavy axle loads while maintaining suspension flexibility.
Shock Absorption:
Effectively dampens road shocks and vibrations, contributing to ride comfort and cargo protection.
Fatigue Resistance:
Designed to withstand millions of load cycles without failure, ensuring long service life under harsh working conditions.
Temperature & Corrosion Resistance:
Heat-treated and coated to maintain performance in extreme temperatures and corrosive environments.
According to different model parameters
| Description | Example Value/Unit | |
| Model Number | Unique identification model of the leaf spring | SK-1234 |
| Number of Leaves | The number of leaf layers in the spring pack | 3 leaves, 5 leaves |
| Total Length | Overall length after installation (center-to-center distance of mounting eyes) | 1200mm |
| Leaf Width | Width of a single leaf | 60mm, 70mm |
| Leaf Thickness | Thickness of a single leaf | 8mm, 10mm |
| Free Camber | Arch height of the spring when unloaded | 150mm |
| Rated Load | Maximum static load capacity (per axle or per set) | 2000kg |
| Stiffness (Rate) | Spring rate (force required per unit deflection) | 50N/mm |
| Material | Leaf material (e.g., alloy spring steel) | 60Si2MnA, 55CrMnA |
| Surface Treatment | Anti-corrosion coating (e.g., painting, e-coating, galvanizing) | Black e-coating |
| Mounting Hole Size | Diameter and position of fixing bolts or eye holes | Φ18mm, 100mm spacing |
| Applicable Vehicle | Compatible vehicle type or axle load range | Light truck, trailer |
| Operating Temp. Range | Permissible environmental temperature range | -40℃ ~ +120℃ |
| Fatigue Life | Cycle count under rated load (e.g., ≥100,000 cycles) | ≥100,000 cycles |
Applications
◇Heavy-duty trucks and trailers
◇Construction machinery
◇Agricultural vehicles
◇Off-road equipment
◇Commercial transport vehicles
Advantages
Durability:
Enhanced material quality and heat treatment extend operational life.
Maintenance Friendly:
Modular design allows for easy inspection, repair, or replacement of individual leaves.
Cost-Effective:
Provides excellent performance at a competitive price point, reducing overall vehicle maintenance costs.
Customizable:
Available in various sizes, thicknesses, and configurations to meet specific load and vehicle requirements.
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