Flexible Coupling Model is widely used for its compact designing,easy installation,convenient maintenance, small size and light weight.SAs long as the'relative displacement between shafts is kept within the specified tolerance,the coupling will operate the best function and a longer working life,thus it is greatly demanded in medium and minor power transmission systems drive by moters,such as speed reducers,hoists,compressor,spining &weaving machines and ball mills,permittable relative displacement:Radial displacement 0.2-0.6mm ; Angel displacemente 0o30'--1o30'