This browser is no longer supported. Upgrade to Microsoft Edge or switch to a supported browser, like Chrome, Safari, or Firefox, to explore the MW Components website.

We're sorry for the inconvenience.

What is the free length of a spring?

For a compression spring, it is the length of the spring from one end to the other when no load is applied. For a tension spring, it is the length between the inside diameter of the two end hooks when no load is applied.