A tension spring, also known as an extension spring, is a mechanical component designed to operate under tension. It features tightly wound coils that resist stretching and typically includes hooks or loops at each end for attachment. When a pulling force is applied, the spring stretches and stores mechanical energy. Once the force is removed, the spring contracts to its original length, releasing the stored energy.
Tension springs are commonly made from durable materials such as music wire, stainless steel, and phosphor bronze, chosen based on the application’s strength, corrosion resistance, and conductivity requirements.
Tension springs are widely used in various industries including:
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Key design factors include spring rate, maximum extension, initial tension, and material selection. It is crucial to avoid overextension, which can lead to permanent deformation or failure of the spring.
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