Where it earns its place
Best-Fit Uses
Custom return or preload
Provides spring force in an assembly designed around this spring style.
Drawing-specific fit
Matches a product envelope that needs a purpose-built spring solution.
Returning a lever or hinged part
Provides a turning force around a pivot so a moving arm comes back toward a preferred angle.
Helping open or close a panel
Can assist or oppose rotation when the spring is arranged around the same pivot as the moving part.
Why this style works here
What This Spring Style Solves
The best choice comes from the job the spring must perform rather than from a catalog name alone. Working positions, load and the surrounding parts should be reviewed together.
Before you choose it
What to Confirm in Your Assembly
- Provide the assembly drawing and all working positions.
- State the required force or torque and expected cycle life.
- Show the pivot or shaft diameter and the free and working leg positions.
- State the required torque at one or more angles and the direction in which the spring is loaded.
- Identify which leg or end is fixed and which one moves with the assembly.
Avoid forcing the wrong spring into the design
When Another Spring Style May Fit Better
Use the simplest spring style that meets the load, travel and packaging need. A more specialized geometry should solve a clear application problem.
- Browse the spring catalog for other geometries
- Review the application with your assembly drawing
Keep material selection separate
Environment & Material Direction
Once the working angle, torque and fit around the pivot are known, use the Materials section to choose an alloy for corrosion, temperature or fatigue needs.
Move from the use case to the specification
Where to Go Next
Related Spring Design Guides
Review the dimensions, working loads and drawing requirements for this spring family.
Application questions
Frequently Asked Questions
How do I confirm this spring style is the right fit?
Compare the required movement, load, available space, attachment points and working environment. A drawing review is the best way to confirm whether another spring style would package the job more simply.
Why does winding direction matter?
A torsion spring is normally intended to tighten around its axis as it is loaded. Reversing that direction can open the coil, change the fit around the shaft and produce a different stress condition.
What should I send for an application review?
Send the assembly drawing or a clear sketch, the working positions, the force or torque you need, expected cycles, environment and quantity. If an existing spring is being replaced, include its dimensions and explain what is not working well in the current design.
Same application family