Power Spring Design

Measure winding and unwinding curves under representative conditions. Their difference includes contact losses and should remain visible in the report.

Housing roundness, concentricity and contact can alter assembled friction. Compare housings before attributing all scatter to spring manufacture.

Treat the change as a new geometry review. It can affect curvature, available rotation, end engagement and output.

Only if the specified attachment has been designed and validated for the transmitted load. Contact with a wall is not proof of retention.

Define assembly setting, usable travel and prohibited end regions separately. Total possible winding is not a safe working-turn specification.

Check contact location, retention and local geometry under the approved winding conditions. The arbor slot and spring end form one load-carrying interface.