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Clock spring

The clock spring (also referred to as a flat torsion spring) is designed to produce a torsional force (circular movement). In contrast to the tightly coiled motor spring on the previous page, the clock spring has open coils that, when mounted correctly, reduces fricton to zero. However, torque capacity is reduced as a result. The standard range is made from rounded edge stainless steel, which affords a better fatigue life.

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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.

Click for information about 3D CAD!

1. Choose file format

2. Choose item in the table

3. Save file

Cat.no t b A Mn Nmm Mn Nmm 2 3D CAD
916 1 6 14 1500 1200
917 1 10 14 2500 2000
918 1 6 14 1500 1200
919 1 10 14 2500 2000
920 1,25 7 16 2625 2100
921 1,25 12 16 4500 3600
922 1,25 7 16 2625 2100
923 1,25 12 16 4500 3600