Conventional Leaf Springs: The Basics And Their Role In Automotive Suspension

By Author: sonicoleafsprings
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When it comes to automotive suspension systems, one of the most common components used is the conventional leaf spring. These springs have been used for decades in a variety of vehicles, from trucks to sedans, and are known for their durability and ability to handle heavy loads. In this article, we will discuss the basics of conventional leaf springs and their role in automotive suspension.
What are Conventional Leaf Springs?
Conventional leaf springs are a type of suspension system that uses layers of curved metal strips, or leaves, to absorb and distribute the weight of a vehicle. These metal strips are typically made of steel, and are curved into a specific shape to provide the desired level of support and flexibility.

The number of leaves in a spring can vary, depending on the weight and load capacity of the vehicle. Lighter vehicles may have fewer leaves, while heavy-duty trucks may have several layers of leaves to handle heavy loads.
How do Conventional Leaf Springs Work?
When a vehicle with conventional leaf spring ...
... travels over a bump or uneven surface, the weight of the vehicle is transferred to the springs. The leaves of the spring compress, absorbing the shock of the bump and distributing the weight evenly across the entire length of the spring.

As the vehicle moves forward, the compressed leaves expand and return to their original shape, providing a smooth ride for the driver and passengers. The stiffness of the spring can be adjusted by adding or removing leaves, or by adjusting the curvature of the leaves.
Advantages of Conventional Leaf Springs
Durability

Conventional leaf springs are known for their durability and ability to handle heavy loads. They are able to withstand the stress of constant weight and movement, making them ideal for use in commercial and heavy-duty vehicles.

Cost-effective

Compared to other types of suspension systems, conventional leaf springs are relatively inexpensive to manufacture and repair. This makes them an affordable option for many vehicles, especially those used for commercial purposes.

Simplicity

Conventional leaf springs are simple in design and construction, making them easy to install and maintain. They do not require complex hydraulic or pneumatic systems, and can be repaired with basic tools and equipment.
Disadvantages of Conventional Leaf Springs
Rough Ride

Due to their stiffness and lack of adjustability, conventional leaf springs can provide a rougher ride compared to other types of suspension systems, such as air or coil springs.

Limited Adjustability

Conventional leaf springs have limited adjustability, which can make it difficult to fine-tune the suspension system for different road conditions and vehicle loads.

Weight

Conventional leaf springs are heavier compared to other types of suspension systems, which can affect the overall weight and handling of the vehicle.
Conclusion
Conventional leaf springs have been used in automotive suspension systems for decades, and are known for their durability, cost-effectiveness, and simplicity. While they may provide a rougher ride compared to other suspension systems, their ability to handle heavy loads and withstand constant stress makes them ideal for use in commercial and heavy-duty vehicles. By understanding the basics of conventional leaf springs, drivers and mechanics can make informed decisions about the suspension systems in their vehicles.

SONICO has positioned itself as one of the leading manufacturers of conventional, parabolic and bogie leaf springs in India’s Automobile Industry.