The coupling consists of several groups of diaphragms (stainless steel plates) connected to the two halves of the coupling with bolts in an alternating pattern. Each group of diaphragms is composed of several stacked plates, which are divided into rod-type and solid plates of various shapes. The diaphragm coupling compensates for the relative displacement between the connected shafts through the elastic deformation of the diaphragms. It is a metal rigid flexible coupling that does not require lubrication, features a compact structure, high strength, and a long service life.