Torsion Springs

Torsion Springs resist external torque with angularly deflecting ends. Contrary to its name, the wire is subjected to bending stress and not torsional stress. These are close wound springs. After deflection, the body length increases and coil diameter reduces.

The ends of torsion springs are attached to other components, and when those components rotate around the center of the spring, the spring tries to push them back to their original position. This type of torsion spring is normally close wound but can have pitch to reduce friction between the coils. They offer resistance to twist or rotationally applied force. Depending on the application, torsion springs can be designed to work in a clockwise or counter-clockwise rotation, thus determining the direction of the wind.

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