Quick answer: Only after verifying pair output and alignment. A new spring and an aged spring may differ enough to change the mechanism's balance.
Can one spring in a balanced pair be replaced independently?
The decision depends on the remaining spring's condition and the design's allowable imbalance. A matching part number does not prove matching measured performance. For paired mechanisms, preserve identification and relevant force results so maintenance decisions are based on the installed pair rather than nominal catalog force.
A practical verification method
Measure both spring paths and assembled tilt after replacement; use the agreed imbalance limit to accept or replace the pair.
| 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 both spring paths and assembled tilt after replacement; use the agreed imbalance limit to accept or replace the pair. | 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.