Helical Spring Deflection

  • Helical Spring Design Resources – Spring Performance

The most common definition for helical spring deflection (F) expressed in technical publications is:

"Motion of spring ends or arms under the application or removal of an external load (P)". In this definition, spring ends refer to compression springs and extension springs while arms refer to torsion springs.

Simply stated, deflection in compression and extension springs is the movement of the spring, either by applying force to it or removing force from it. In the case of torsion springs, deflection is the movement of the torsion arms (legs), again caused by applying or removing force (load).

Please contact the Newcomb Spring facility nearest you for more information on the considerations of spring design.


Industry professionals rely on the Springulator® as the most robust spring calculator resource. With easy-to-use functions, reference diagrams and stress charting, the Springulator provides spring design data for compression springs, extension springs and torsion springs.

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