Constant Force Spring Attachment Alignment and Side Load
The load attachment may be offset from the strip’s intended line of action. Correct the force path before changing spring output.
Constant Force Spring Coil Growth and Housing Clearance
Use the maximum assembled coil envelope across the entire intended stroke, including manufacturing variation and guidance requirements.
Guide Placement for a Long Constant Force Spring Strip
Locate guidance to control lateral motion and twisting without forcing reverse curvature or excessive rubbing.
Specifying Residual Wraps at Maximum Constant Force Spring Extension
State maximum working extension and the retained-wrap requirement on the assembly drawing, using the selected spring design’s approved limit.
Opposing Constant Force Springs for a Centered Carriage
Opposing nearly constant forces can reduce net pull, but they do not automatically create a unique stable center. Positioning may require another restoring.
Constant Force Spring Startup Travel: What to Leave Outside the Working Stroke
Do not assume the initial deployment behaves like the established plateau. Reserve a measured transition zone before the mechanism’s controlled working stroke.