The correct spring wire diameter is the single most critical design decision because it determines the spring's stress, rate, and deflection capacity. To choose it, you must first
Choose a compression spring when you need to push components apart or absorb shock, and choose an extension spring when you need to pull components together or store energy under t
Spring set is the permanent plastic deformation that occurs when a spring is compressed or extended beyond its elastic limit, resulting in a loss of free length and a reduction in
Spring free length is the overall axial length of an unloaded spring, measured from end to end with no external force applied. It is the critical baseline dimension from which all
The spring index is the ratio of the mean coil diameter to the wire diameter (C = D/d), and it is the single most important geometric parameter for predicting spring manufacturabil
