Compression springs provide resistance to external pressure. They are typically made of metal wire wound at a constant pitch with a fixed wire diameter. Compression springs utilize multiple open coils to provide resistance to external pressure (such as the weight of a wheel or a body pressing down on a mattress). In other words, they push back to resist external pressure.
Compression springs are generally made of metal wire wound at a constant pitch with a fixed wire diameter. In addition, there are conical compression springs, or springs combining conical and straight wires. Depending on the application, compression springs can be used to resist pressure and/or store energy. Round metal wire is the most common type of compression spring, but square, rectangular, and other specially shaped metal wires are also used.
