A torsion spring is a mechanical device that stores and releases rotational energy. Torsion spring configurations are created to store and release energy or to hold a mechanism in place by deflecting around the axis of a body’s centre line. They reduce the diameter of the body and increase its length when deflected in the proper direction.
The leg angle of a torsion spring refers to the angle that the legs make when it is in the free position before any load is applied to the leg. It varies from 0°-360°. Standard torsion springs are available in stores whose leg angles are 90°, 180°, 270°, and 360°. The leg angle can also be customized by the manufacturer based on the client’s needs.
The legs of a torsion spring can be twisted, bent, hooked, and looped to make installation and operation convenient. The common leg styles of torsion springs are enumerated below; however, leg styles can be customized upon customer request.