Spiral disc spring consists of 2 identical flat wire compression springs screwed into one another to achieve a cross-section similar to that of disc springs.

Advantages of spiral disc springs

Single component design, avoiding mismatch and friction of individual discs.

No erroneous diagram results caused by incorrect layering or grease influence.

Uninterrupted grain structure reduces the risk of breakage.

Stable spring loads even in case of breakage (no loss of deflection).

No friction at mandrel or sleeve due to the fact that the stiffness of the spring allows to dispensing with any guidance.

Simple and cost-saving assembly and maintenance.