Mechanical springs
Compression, extension, and Belleville spring calculations.
Select the spring type, establish the load characteristic, and assess stress and installation limits.
Calculators in this category
Compression Spring Fatigue Utilization (Generic Goodman Model)
Calculate a compression spring's mean stress, stress amplitude and fatigue utilization at two working points, reusing the validated EN 13906-1 stress core plus a user-supplied permissible stress amplitude. No DIN EN 13906-1 fatigue diagram is embedded.
Open calculator →Spring Wire Strength (EN 10270-1)
Look up the tensile-strength range of cold-drawn spring steel wire from EN 10270-1 Table 3 for a chosen diameter and wire grade.
Open calculator →Compression Spring
Calculate forces, rate, stress, and installation limits.
Open calculator →Extension Spring
Calculate rate, initial tension, forces, and stress.
Open calculator →Extension Spring Hook Stress and Fatigue Utilization
Calculate bending and torsional stress at an extension spring's hook (points A and B), reusing the validated EN 13906-2 spring-body core plus classical Shigley hook stress equations and a user-supplied permissible stress amplitude. No DIN EN 13906-2 hook/fatigue diagram is embedded.
Open calculator →Torsion Spring
Calculate moment rate, moments, and bending stress.
Open calculator →Torsion Spring Leg Deflection and Stress
Calculate leg bending stress, additional leg rotation and total angle of a torsion spring, reusing the validated EN 13906-3 spring-body core plus a generic straight-leg cantilever bending model. No DIN EN 13906-3 leg data is embedded.
Open calculator →Belleville Spring
Calculate nonlinear disc-spring characteristics.
Open calculator →Progressive Belleville Spring Stack
Calculate the force-displacement curve, active groups, transition points, strain energy and maximum stress of a progressive multi-group Belleville spring stack, numerically coupling the validated EN 16983/EN 16984 single-group core. No dedicated EN 16983/16984 progressive-stack method is embedded.
Open calculator →Belleville Spring Fatigue Utilization (Generic Goodman Model)
Calculate stresses at the five characteristic locations of a Belleville spring, their stress amplitude and fatigue utilization at two working deflections, reusing the validated EN 16983/EN 16984 stress core plus a user-supplied permissible stress amplitude. No EN 16983 fatigue diagram is embedded.
Open calculator →Springs in Parallel Calculator
Calculate the combined spring rate of two linear springs connected in parallel.
Open calculator →Springs in Series Calculator
Calculate the combined spring rate of two linear springs connected in series.
Open calculator →Ring Spring Calculator: Unloading Force
Calculate the return force of a ring spring on unloading from loading force, half cone angle and friction coefficient (valid for α > arctan μ).
Open calculator →Air Spring Force Calculator (Polytropic)
Calculate the net force of an air spring from initial pressure, external pressure, volumes, effective area and polytropic exponent.
Open calculator →Elastomer Spring Shear Force Calculator
Calculate the force of an elastomer spring in parallel shear from shear modulus, shear area, elastomer thickness and shear displacement.
Open calculator →Compression Spring Lateral Rate Calculator
Calculate the lateral rate of a helical compression spring from axial rate, free length, mean coil diameter, deflection and modulus ratio G/E.
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