The Hub City Hub Flex coupling is a revolutionary coupling design that offers many advantagesover traditional coupling designs. Like other flexible couplings, it is made up of two hubs and anelement or insert. It is similar in appearance to a jaw coupling, but there is no metal-to-metalcontact, which means if an element fails the hubs will not destroy each other or, worse, causedamage to the machinery. What makes this coupling so unique is how quick and easy it is toreplace a damaged element.W