Spring Torque Ripple from an Eccentric Drum
A repeatable disturbance related to shaft angle warrants a concentricity and contact review.
A repeatable disturbance related to shaft angle warrants a concentricity and contact review.
The fixture may introduce off-axis loads or measure only a component of the intended force. Align and define the force path.
It may retain moisture or residue differently from exposed surfaces, creating a localized environment.
Preserve part identity, material and process traceability, installed orientation and the observed failure location.
Inspect stops, attachments and retained material for evidence of movement beyond the approved window.
Record breakaway force, subsequent running force and the pause condition at the affected position.