PUFLEX DC couplings are the three piece assembly of 2 no. Aluminium Alloy hubs and one Special Grade Plastic Disc. These three pieces are co-axially assembled to complete the PUFLEX DC coupling. After assembly these couplings becomes sufficient flexible, backlash-free, positive motion transmitting fail safe coupling elements. Due to Plastic Disc, both the metallic hubs are separated from each other to avoid there physical contact. This helps to avoid the electrical and frequency isolation of both the connected driver and driven elements.