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Compliant with DIN 6796, our tensioning washers are robustly dimensioned and designed for use in medium or high load screw joints.
The high spring force of our tensioning washers affords effective protection against relaxation and creep. Especially when joints are exposed to high stresses and movements resulting from thermal expansion or contraction. In such instances, tensioning washers should replace conventional lock washers.
You can stack tensioning washers in series or parallel. Series stacking increases the available deflection of the spring stack while parallel stacking increases the force — the desired installation is to get the washers as near to flat as possible.
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FL = Free Length
F1 = Maximum Force
h min = min dimension after setting test acc to DIN 267-26
Min residual spring force = after load with the contact force and release through a travel of 20 μm
Contact force = forces for the setting test, acc to DIN267-26
Standard steel range:
Material: EN 10132-4
Finish: Mechanically galvanised and yellow chromated
Working temperature: max 120 °C
1 kp = 9.80665 Newtons, 1 Newton = 0.10197 kp
If required, untreated spring washers can also be supplied direct from the factory. Spring washers in custom sizes and special materials, e.g. stainless, acid proof, phospor bronze, Alloy 718 or Alloy 90, can be produced upon request.