Black carbon steel Disc spring for guitar

Constant force spring is a kind of cylindrical spiral spring with circular section. The spring has long life, reliable performance and good interchangeability, and has been widely used in many industries.
Constant spring is designed according to torque balance principle. It relies on delicate geometrical design, make load moment and spring moment always balance in working process, in order to maintain constant support force, can eliminate or reduce the additional stress to pipeline or equipment. Main and auxiliary constant spring is designed according to the principle of constant resultant force under the combined action of main spring force and auxiliary spring force.