TENSION SPRING

Tension springs are designed to give a specific pull force when extended to a a specific length. Our tension springs have a material dimensional range from 0.15mm – 5.0mm.

Most common ends are different types of end loops and hooks, there are also a wide range of other mechanical attachment possibilities such as coiled in and screwed in attachments. Examples are, half hooks, German loops, English loops, extended hooks, side hooks, side loops, screw plugs and screw shackles.

The design difference between compression springs and tension springs is that the latter are usually have a loop or a hook attached at either end – these are for attachment purposes. Tension springs can be found in garage doors but a trampoline is a better example of this type of spring in action. The primary function of this type of spring is to allow an outside force to create tension then use energy to pull components back together. Tension springs are usually wound very tightly and this spring in a state of rest when it is coiled closely together. If the coils of a tension spring are damaged it will not be able to return to its original state of tension.