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spring rate conversion

spring rate conversion
by Paul on 03/16/05 at 00:40:57

Can anyone help me with a spring rate conversion?
Some of the new springs are rated at kg/mm and previously have been rated in lbs. I'm not sure whether it is lb/inch or what.
Anyone know?

Re: spring rate conversion
by Robert Fogt on 03/16/05 at 12:40:09

Springs are rated in pounds/inch in the U.S., and Newtons/millimeter elsewhere. I have not seen kilograms/millimeter before, but the conversion will be easy enough.

1 pound = 0.45359237 kilogram
1 inch = 25.4 millimeter
0.45359237/25.4 = 0.0178579673228346

The conversion factor is 0.0178579673228346

So, to convert lb/in to kg/mm you multiply by 0.0179 and to convert kg/mm to lb/in you divide by 0.0179

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