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OpenSpecEngineering

Open data for a field built on precision

Spring Design

Spring rate and stress for helical compression/extension springs (direct shear, Wahl-corrected) or helical torsion springs (bending, per the torsion-spring bending correction factor).

F D wire diameter d, mean coil diameter D, Na active coils
Helical spring geometry shared by compression, extension, and torsion springs.

Solution

History