Quick answer: Not necessarily. The force-to-torque conversion and the output radius determine the resulting cable tension.
Will constant spring force produce constant cable tension through a spool?
A force acting at one radius creates torque, while the cable pulls at another. As cable layers accumulate, the output radius may change. Even a nearly flat spring force can therefore create a varying cable pull. Sketch both radii and distinguish their motion before describing the output as constant.
A practical verification method
Measure pull at the first and last cable layer; correlate the difference with effective spool radius.
| 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 | Measure pull at the first and last cable layer; correlate the difference with effective spool radius. | 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.