Introduction
Double diaphragm coupling relies on the elastic deformation of the diaphragm to compensate the relative displacement of the two shafts. It is a high-performance flexible coupling for metal elastic components. It is not lubricated, has a compact structure, high strength and long service life. It has no rotating gap, is not affected by temperature and oil pollution, and has the characteristics of acid resistance, alkali resistance and corrosion resistance. It is suitable for shaft drive of high temperature, high speed and corrosive medium working conditions, and is widely used in shafting of various mechanical devices. Transmissions, such as pumps (especially high-power, chemical pumps), fans, compressors, hydraulic machinery, petroleum machinery, printing machinery, textile machinery, chemical machinery, mining machinery, metallurgical machinery, aviation (helicopter), high-speed power of ships Transmission systems, steam turbine piston-type power mechanical transmission systems, crawler-type vehicles, and high-speed, high-power mechanical transmission systems for generator sets have been widely used in high-speed transmission shafting after dynamic balancing. Compared with the toothed coupling, the diaphragm coupling has no relative sliding, no lubrication, no sealing, no noise, no maintenance, and is convenient to manufacture. It can partially replace the gear coupling.

Advantages of diaphragm couplings
1. It has obvious shock absorption effect, no noise and no wear.
2. Adapt to work in high temperature and harsh environment
3. High transmission efficiency, up to 99.86%.
4, simple structure, light weight, small size, convenient assembly and disassembly. It can be assembled and disassembled without moving the machine (refers to the type with intermediate shaft), without lubrication.
5, can accurately transfer speed, no slippage in operation, can be used for transmission of precision machinery

Application of diaphragm coupling
Suitable for medium, high speed and high torque shaft drive. And the shafting transmission of various mechanical devices with little load change is very versatile.