The tension spring (tension spring) is a coil spring that receives axial tension, and the tension spring is generally made of a circular cross-section material. When the load is not subjected to the load, the loop of the tension spring spring is generally tight and there is no gap between them. It uses the resilience (tension) after stretching to control the movement of the machine, the energy stored, and the measurement force. It is widely used in machines and meters. The hooks are in the form of side hook tension springs, long hook tension springs, English hook tension springs, German hook tension springs, semicircular hook tension springs, duckbill hook tension springs, etc. The materials are stainless steel, piano steel, high carbon. Steel, phosphor bronze, oil tempered alloy spring steel, etc.
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