How to find the right Mechanical Torsion Springs AI guide
Written by an AI model from its trained knowledge.
What the AI looks for in Mechanical Torsion Springs
- Wind direction
- Choose a left-hand or right-hand wind so that the load closes, or tightens, the coils Loading against the wind direction unwinds the spring and sharply reduces its capacity.
- Leg configuration and free angle
- Match the leg lengths, the leg type and the angle between the legs at rest The free angle sets the preload once installed, and wrong legs will not seat on the anchor points.
- Arbor clearance
- Use an arbor clearly smaller than the spring ID, allowing for the ID shrinking as the spring winds up An arbor that is too large binds the coils and can break the spring.
- Torque rate and maximum deflection
- Match the torque per degree and stay within the cataloged maximum angular deflection Overwinding causes the spring to take a set or break.
- Material
- Music wire for dry use, stainless steel for wet or outdoor use Corrosion fatigue is the usual failure mode for cyclic hinge springs.
Brands that matter
- Lee Spring: Stock torsion springs in both wind directions with torque data.
- Century Spring: Stock torsion range, including double-torsion styles.
- Gardner Spring: Stock and custom torsion springs.
- Associated Spring Raymond: Industrial stock torsion spring line.
What to avoid
- Using small mechanical torsion springs to replace garage-door torsion springs, which are a separate, high-energy product that needs specific sizing
- Guessing the wind direction from photos instead of checking the actual part
- Bending the legs to change the preload
Questions
How do I tell a left-hand from a right-hand wind?
Hold the spring with its axis vertical. If the coils rise to the right, as on a standard screw thread, it is right-hand wound; if they rise to the left, it is left-hand wound.