How about the connection structure of the high-speed diaphragm coupling?

High-speed diaphragm coupling manufacturers will introduce to you:

The high-speed elastic diaphragm coupling consists of at least one diaphragm and two bushings. The diaphragm is fastened on the bushing with pins and generally will not loosen or cause recoil between the diaphragm and the bushing. There are one or two rigid elements in the middle of the high-speed elastic diaphragm coupling, and the two sides are connected to the shaft sleeve.

High-speed diaphragm couplings are very compact:

The high-speed elastic diaphragm coupling relies on the elastic deformation of the diaphragm to compensate the relative displacement of the connected two shafts. It is a high-performance flexible coupling with strong metal components. It does not need lubricating oil. It has a compact structure and high strength. It is easy to use Long service life, no rotation gap, not affected by temperature and oil pollution, acid-resistant, alkali-resistant and anti-corrosion, suitable for shaft transmission in high temperature, high speed, and corrosive medium working conditions. High-speed elastic diaphragm couplings are very delicate and can be easily damaged if misused in use or installed incorrectly.

Summarize:

High-speed elastic diaphragm couplings are often used in servo systems. The diaphragm has good torque rigidity, but it is slightly inferior to bellows couplings. The high-speed elastic diaphragm coupling consists of at least one diaphragm and two shaft sleeves. The diaphragm is pinned to the bushing and will generally not loosen or cause backlash between the diaphragm and bushing. The diaphragm itself is very thin, so it bends easily when relative displacement loads are applied. High misalignments can thus be tolerated while generating low bearing loads in the servo system. High-speed elastic diaphragm couplings are often used in servo systems. The diaphragm has good torque rigidity, but it is slightly inferior to bellows couplings. On the other hand, high-speed elastic diaphragm couplings are very delicate and can be easily damaged if they are misused in use or installed incorrectly. Therefore, it is very necessary to ensure that the deviation is within the tolerance range of the normal operation of the coupling. The diaphragm itself is very thin so it flexes easily when relative displacement loads occur, resulting in lower bearing loads in the servo system.