Elastic parts of the suspension use the type of spring. The springs can be metal or non-metal such as: – Metal springs: leaf springs, spring springs, torsion springs – Non-metal springs: rubber spring, air spring Elasticity of springs: If a force is applied to an object made of a material such as rubber, it will produce stress in the object.
When no force is applied, the object returns to its original shape. We call that feature elastic. The springs of the car use the principle of elastic to reduce shocks from the road surface impact on the body and the car. Steel springs use bending and twisting elasticity.