The diaphragm coupling is a high-precision flexible coupling that transmits torque through thin metal diaphragms. It belongs to the non-lubricated, maintenance-free transmission component and is very suitable for high-speed, high-precision transmission systems.

The diaphragm coupling compensates for angular, radial, and axial misalignment through the elastic deformation of metal diaphragms. It has high torsional rigidity and can maintain stable transmission accuracy even at high speeds. Common materials for diaphragms include stainless steel and other alloy materials, which have high strength and fatigue resistance.

One significant advantage of diaphragm couplings is that they do not require lubrication and have a long service life. They are widely used in high-speed equipment such as compressors, fans, pumps, steam turbines, generators, and precision machine tools. They are also suitable for petrochemical, aerospace, and other fields requiring high reliability.

In addition, the diaphragm coupling has a compact structure, light weight, and small rotational inertia. It can reduce the load on the shaft system and improve transmission efficiency. With excellent stability and no backlash, it can ensure accurate transmission of motion. For high-speed and high-precision mechanical equipment, diaphragm couplings are ideal components.