![]() Note 5 : # Shall be larger than the design factor at solid height (n s ≤ Note 4 : + Shall be larger than the design factor for buckling (n b Note 3 : *** Does not include the effect if the spring ends are allowed to unwind. Note 2 : ** According to no yielding assumption and L f length shall be same after loading. Packaging, especially if the ends are not squared. Ĭompression springs with high indexes tangle and may require individual Note 1 : * The preferred spring index range is 4 to 12 according to. Ultimate tensile strength of material įactor of safety against torsional yielding at solid height [fos sįactor of safety against buckling Note 3 : * Ends supported by flat surfaces must be squared and ground. Note 2 : + Equals maximum allowable torsional stress in staticĪpplications. Note 1 : x Spring material properties are from Ref-2 except "User defined" SPRING MATERIAL & STRESS RELEATED PARAMETERSĪllowable torsional strength (% of S ut) +ĭesign factor at solid height against torsional stress ![]() Which work under cyclic loading, first use this calculator for the sizingĪccording to static loading and then visit "Critical Frequency of Helical Springs" and "Stress Analysis ofĬoil Compression Springs for Fatigue Loading" calculators to check the compression spring design against cyclic loading.Ĭompression spring formulas used in the calculator are given in the "Supplements " section of this page. ![]() This calculator can be used to design statically loaded compression springs. ![]() Spring outer diameter expansion, load-deflection curve, stress–deflection curve, spring Shear stress at solid height, factor of safety against yielding, buckling check, Material selection of compression springs can be done from listed spring steels including music wire, stainless steel wire, chrome vanadium, etc.Ĭalculation results generated by the compression springs calculator are solid height, torsional Compression spring calculator to find compression springĭesign parameters with the knowledge of design type (one load & free height, one load & spring rate, two loads), compression spring wire diameter, spring diameter, spring free height, loads at specific heights, compression spring end type and material selection. ![]()
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