(1) Portability. The mobility of a coupling refers to the ability to compensate for the relative displacement between two rotating components. Factors such as manufacturing and installation errors between connected components, temperature changes during operation, and deformation under load all require mobility. Removable performance compensation or mitigation of additional loads between shafts, bearings, couplings, and other components caused by relative displacement between rotating components.
(2) Buffer capability. For situations where frequent load starting or changes in working load occur, the coupling should have elastic elements that provide buffering and vibration reduction to protect the prime mover and working machine from damage or injury.
(3) Safe, reliable, with sufficient strength and service life.
(4) The structure is simple, easy to assemble, disassemble, and maintain.