Jump to content

How to calculate your spring rate


Recommended Posts

Thought this migt be useful to you.

The spring rate = (1406250 x d x d x d x d) / (N x D x D x D)

d = wire diameter in inches

N = Number of active coils.

The flattened coils at the ends are not considered active.

D = Mean diameter of spring.

Half way between the inside & outside diameter.

I've tried it for a few odd springs and it generally comes within 10% of what the manufacturer reckons it's supposed to be.


Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...

Important Information

We use cookies to ensure you get the best experience. By using our website you agree to our Cookie Policy