Overload holding, fail-safe or overload shedding, non-fail-safe?

N-EUPEX and N-EUPEX DS flexible shaft couplings connect machines and compensate for shaft misalignment, generating only low restorative forces. The torque is transmitted through elastomer elements, so the coupling has typically flexible rubber properties.

The elements of the N-EUPEX coupling are subjected to compression. If the elements are irreparably damaged, the hub parts come into contact metal to metal. This emergency operation capability, fail-safe characteristic is required for instance, in the case of fire pump drives as an example.

The elements of the N-EUPEX DS series are subjected to compression and bending forces. If the elements are irreparably damaged, the metal parts turn against one another without contact, and the power transmission is separated. Fitting new elements will make the coupling usable again. The capacity of the N-EUPEX DS series to shed overloads is especially necessary for highly sensitive machines.

For further information please visit: https://www.jbj.co.uk/claw-couplings.html