Helical Tension Springs

These are generally closely coiled or some times with pitch between the coils. They are manufactured with shanks of variety of shapes as required by the end usage. Unlike the compression springs and tension springs they are not governed by the shear stress. Torsion springs are stressed in shear to affect energy transfer and this enables to effect the actuation of the energy stored. HELICAL TORSION SPRINGS form wires of size 0.15 to 7.5 mm dia.