What is a Wave Spring A wave spring, also known as a coiled wave spring or a Belleville washer spring, is a type of mechanical spring that offers unique characteristics and advantages in various engineering applications. Structure and Design Unlike traditional helical springs that have a uniform cylindrical shape, a wave spring is designed with a wave-like or sinusoidal profile. It is typically made from a flat strip of metal, such as stainless steel or carbon steel, which is coiled into a helical form. The waves or undulations in the spring provide it with the ability to store and release energy in a different manner compared to conventional springs. Working Principle When a force is applied to a wave spring, it compresses or deflects. The unique wave shape allows the spring to provide a relatively constant force over a specific range of deflection. As the spring is compressed, the waves flatten out, and the material resists the deformation, generating a restoring force. This force can be used to maintain contact between components, absorb shock, or provide preload in a mechanical assembly. https://www.raleigh-springs.com/Wave-Spring