Length of Spring evaluator uses Former Length = (Youngs Modulus*Spring Width*Spring Thickness^3*Angular Deflection)/(Controlling Torque*12) to evaluate the Former Length, The Length of Spring formula is defined as the actual length of a compression spring without any sort of load or force being placed on it. When a load or force is placed on a compression spring, its length deflects. Even if the load or force is very small, the length of the spring may travel a few thousandths of an inch. Former Length is denoted by Lf symbol.
How to evaluate Length of Spring using this online evaluator? To use this online evaluator for Length of Spring, enter Youngs Modulus (E), Spring Width (Bs), Spring Thickness (t), Angular Deflection (θ) & Controlling Torque (Tc) and hit the calculate button.