When the tension spring is formed, the spring coils generate a compressive force with each other. When the tensile force acts on the spring, if the force is less than the compression force of the spring, the spring will not deform. If the force is greater than the compression force of the spring, the spring begins to deform. The tensile load corresponding to this compressive force is the initial tensile force. The initial tensile force of the tension spring depends on the type of material, the diameter of the material, the winding ratio of the spring, and the processing method.
The end shape of the tension spring is mainly a hook ring. These hook rings are bent by the end spring ring or material. When designing or selecting the end structure, the installation method, installation space and load property of the spring in the mechanism are mainly considered. And other factors, as long as all conditions are met, try to choose a simple mechanism shape.
If you have a special need for tension springs, our experienced engineers will design (including load and service life and other characteristics) and manufacture products that meet your company's needs.