Constant Torque Spring Enclosure Access for Inspection
Provide a defined way to inspect tracking, retained material and contact without exposing an uncontrolled energized mechanism.
Constant Torque Spring Output with a Changing External Lever
Only if the effective lever arm remains constant. External geometry can transform nearly constant torque into changing linear force.
Constant Torque Spring Rotation Margin for Assembly Adjustment
Include the actual setting operation and tolerance correction in the required rotation window, using an approved margin rather than an arbitrary extra turn.
Constant Torque Spring Bearing Drag at Low Output
When bearing and seal drag occupy a significant share of the available torque, measure them explicitly instead of treating them as negligible.
Constant Torque Spring Torque Sign Convention
Specify shaft viewing direction, positive rotation and sensor sign on the test diagram. Report resisting and driving torque consistently.
Constant Torque Springs in Intermittent Indexing
Include repeated stops, reversals and dwell at actual index positions instead of testing only continuous rotation.