What kind of coupling has high transmission accuracy

The transmission accuracy is relatively highCouplingThere are two types: (2) The shafting transmission with large torque and power transmission also requires transmission accuracy. At high speeds, avoid the use of non-metal elastic elements, flexible couplings and flexible components with gaps between the movable elements. For the sexual coupling, a diaphragm coupling with high transmission accuracy should be selected.
(2) The small torque and the transmission of the main shaft system require the coupling to have high transmission accuracy, and the flexible coupling of the metal elastic element should be used.