Quick answer: It changes packing, spool radius and sometimes bending resistance, affecting usable travel and return load.
Why is diameter tolerance relevant to spring selection?
A reel evaluated only with a nominal cable may store less length or require different pull at the tolerance extreme. State the actual cable specification and permitted variation. Treat substitutes as mechanical changes even when electrical ratings match.
A practical verification method
Check winding capacity and pull force with representative diameter extremes.
| Item | What to record | Purpose |
|---|---|---|
| Reference configuration | Part or assembly identity and drawing revision | Make comparisons traceable |
| Test conditions | Relevant position, direction and operating condition | Compare the same characteristic |
| Decision evidence | Check winding capacity and pull force with representative diameter extremes. | Resolve the specific question before approval |
Use the result in an engineering request
Describe the observed condition and the required function separately. Include the relevant drawing revision and your results from the check above. If an acceptance limit has not been established, identify it as an open design input rather than treating a successful trial as approval.
Review the related Leading Spring product information. For a project-specific review, send the mechanism description, available geometry and the evidence relevant to this decision through the contact page.
Editorial note: AI-assisted engineering guidance, prepared from the topic-specific reasoning shown here and the company’s public product context. Illustrations explain decisions; they are not customer-case photographs or test results. Product-specific suitability requires review against your approved requirements.