PRODUCT DESCRIPTION

Extension springs are designed to absorb and store energy as well as create a resistance to a pulling force. It is initial tension that determines how tightly together an extension spring is coiled. This initial tension can be manipulated to achieve the load requirements of your particular application. All extension springs are wound with an initial tension force that offers a small deflection load for secure installation “holding”. The initial tension is equal to the minimum force required to separate adjacent coils. Each spring is of the constant diameter type with a variety of hook/loop styles. Spring Anchors are also available.

Characteristics

Extension springs are a type of tension spring. Helical extension springs store energy and exert a pulling force. Extension springs differ from compression springs in that they do not have a solid stop to prevent overloading.  For this reason, they are designed with lower stress levels. Typical applications include balance scales, trampolines, garage doors, dock levelers, farm machinery and various types of spring tensioning devices.