counterbalances and lever return applications. Sizes range from miniature, used in electronic devices, to large torsion
springs used in chair control units. Load should be applied in the direction of
wind; unwinding from the free position is not recommended. As they
wind up, torsion
springs reduce in diameter and their body length becomes longer. This should be considered when design space is limited. Torsion
Springs perform best when supported by a rod or tube. The designer should consider the effects...
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