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Constant force spring

The constant force spring consists of strip material, which has been shaped and pre-tensioned into a tightly wound roll. The spring is used in a linear movement and produces almost constant force throughout its deflection. Constant force springs can be fitted in a number of ways and extended partly or completely. There is practically no limit on extension speed and acceleration.

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  • All measurements are in mm

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.

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Cat.no t b s Di F Håltyp 3D CAD
1036 0,6 40 2000 53 100 F
1037 0,6 40 2000 88 35,7 F
1038 0,6 50 2000 53 125,2 F
1039 0,6 50 2000 88 44,6 F
1040 0,6 60 2000 53 150,2 K
1041 0,6 60 2000 88 53,5 K
8074 0,456 25,4 1515 43,43 34 C
8077 0,457 38,1 1516 43,43 50 F
8079 0,635 38,1 2103 60,45 71 G
8080 0,559 50,8 1852 53,09 83 K
8081 0,635 50,8 2100 60,45 94 K