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Disclaimer
This calculator returns engineering estimates from standard, SMI-aligned spring formulas and idealized assumptions. Results are for preliminary design and RFQ preparation only, and should be verified by a qualified engineer before use in any critical application.
It does not account for every factor that affects real-world spring performance — including material lot variation, manufacturing tolerances, initial tension and hook/end stresses, operating temperature and environment, set and relaxation, or fatigue and cycle life.
Use at your own risk. Do not rely on these results where spring failure could cause injury, property damage, or loss of function. Always follow the applicable engineering standards, test for your specific application, and contact Tri-Matic Spring for a verified, production-ready specification.