Extension spring with turnable loops
Extension springs with normal loops or hooks should not be used for up to more than 60% of the permitted tension, as the loop or the hook of the spring is weaker than the rest of the spring. In order to be able to use the spring to its maximum, without running the risk of loop breaks, you can instead use this series of extension springs with hardened loops, which have tapered ends.
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See "full-screen" models of the springs and download a PDF file of the designed compression, tension or torsion spring!
Lesjöfors configurator for compression, tension and torsion springs allows you to design a spring based on your demands. Our CAD configurator stretches from wire diameter 0,1mm up to 15mm.