Leaf spring is a type of spring that is commonly used in suspension systems for vehicles, particularly trucks and older cars. It consists of a flat piece of metal shaped into an arch or curve, which acts as a spring by compressing and expanding when weight is applied to it. The name "leaf" comes from the shape of the spring, which resembles a leaf in some ways.
In vehicle suspension systems, leaf springs are used for their ability to distribute weight evenly across multiple points along the length of the spring. This helps to support and level out the weight of the vehicle, providing a smoother ride for passengers. Leaf springs can also be adjusted by adding or removing leaves (individual segments) to alter the amount of force they apply in response to weight on the suspension system.
Overall, leaf springs are an important component in many vehicles' suspensions and play a crucial role in providing stability and comfort for passengers while driving.