Compression springs are helical springs that withstand axial pressure. They are typically made of circular cross-section material, but rectangular or multi-strand steel wire can also be used. The springs are generally of equal pitch.
Compression springs come in various shapes, including cylindrical, conical, convex, and concave, as well as a few non-circular shapes. There is a certain gap between the coils of a compression spring. When subjected to an external load, the spring contracts and deforms, storing strain energy.
