Tension springs are attached at both ends to other components. When these components move apart, the springs try to bring them together again. Tension springs absorb and store energy as well as create as resistance to a pulling force. It is initial tension that determines how tightly together an tension spring is coiled. Tension springs are wound to oppose extension. They are often tightly wound in the no load position and have hooks, eyes or other interface geometry at the ends to attach to the components they connect.
We design and manufacture the ends to meet your particular application.