What type of springs are typically used on most trucks and heavy-duty vehicles?

Leaf springs are commonly used in trucks and heavy-duty vehicles due to their unique construction and benefits. They consist of multiple layers of metal strips or plates, which are curved and stacked together. This design allows leaf springs to effectively support heavy loads while providing flexibility and stability. They are particularly advantageous for vehicles that experience substantial weight variations, such as trucks that carry different cargo loads. Additionally, leaf springs offer better durability and resistance to sagging over time compared to other types of springs.

Their ability to absorb shocks and provide a steady ride makes them especially suited for the demands of heavy-duty vehicles that operate under challenging conditions. Meanwhile, the other types of springs mentioned, such as shock springs and coil springs, may have specific applications but do not provide the same level of support and load management required for the truck industry. Kinetic springs, typically associated with energy storage in mechanical systems, are not applicable in the context of vehicle suspension systems.