Diaphragm couplings allow the transmission of torque. They can handle misalignment, based on the thickness distribution (or profile) of the diaphragm. Unlike competing designs, we use a single stainless steel diaphragm. This eliminates the need for extra bolts, rivets, splines and filler rings.
It also greatly simplifies the task of shaping the perfect diaphragm, since we need only one diaphragm per end. We use a modified profile based on extensive FEA. The thickness of the diaphragm varies so stress is distributed evenly when the diaphragm flexes. This happens under the simultaneous effects of torque, speed, axial misalignment and angular misalignment.