It is a good idea to choose the torsion spring for its exact application, so that it complies with the requirements to torque, spring constant, service life, and installation. Torsion springs can be of single or double structure and either right-hand or left-hand wound. We manufacture torsion springs from ø 0.1-8.0mm spring wires.

The material options include ordinary spring steel (e.g., EN 10270-1 SM), stainless spring steel (e.g., EN 10270-3-1.4310), oil-hardening spring steel, galvanized spring steel or acid-proof spring steel, as well as special grades, such as Inconel, Nimonic and titanium.

CAD / PDF file download. Select the desired file format from the drop-down menu and click on the CAD/PDF icon in the product table next to the product you want. The download status is displayed next to the drop-down menu. When the file has been downloaded, click on the icon below to download it to your computer. Please not that you can only download one file at a time.
Download completed file from the icon.

Abbreviations:

d = Wire diameter [mm]
Do = Spring outer diameter [mm]
T = Max. mandrel diameter [mm]
E = Leg length [mm]
M = Torque at max. angle of twist [Nmm]
Lo = Spring body length [mm]
VK = Angle of twist at torque M [Deg]
c = Spring constant, Nmm/degree

Material: stainless steel EN 10270-3-1.4310

Note!

Torsion springs are generally loaded against the direction of winding. In general, spring coil must be controlled by an axle or similar. Take into account the reduction of the spring inner diameter when loading the spring, so that sufficient clearance is provided between the spring and the axis.

Max. operating temperature 250°C

Torque

The spring torque can be calculated by multiplying the force by the torque arm length
[M = F x A], the torque unit is Nmm