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This calculator will determine
any of the values remaining by changing one of the variables then selecting the
"calculate: button for the selected variable.
This calculator will calculate (estimate) the
Spring Rate (k) of a compression spring. Spring rate is best
determined by test and measurement techniques.
k = constant, pounds of load per inch of deflection
G = modulus of rigidity
of spring material, pounds per square inch
d = wire diameter, inches
n = number of active coils, which is the number of coils subjected to flexure (always less than the total number of coils)
D = mean coil diameter, inches = Outer Diameter - Wire Diameter
Compression Spring Design Suggestions
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