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Torsion springs are used in several applications which require the spring to deflect radially. Unlike compression and extension springs which perform a linear deflection.This is why the units of deflection of a torsion spring is in degrees of travel vs. being in inches or millimeters like it is for the previously mentioned spring types.. Because of how the springs are used, you may be able to

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They’re safer because when a spring breaks, it usually stays on the bar. Finally, you can fine-tune the tension on a torsion spring so the door is perfectly balanced. Setting the tension on torsion springs has always been very dangerous, but torsion and extension spring systems with easy, do-it-yourself tensioning (Photo 7) are available.

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