Universal coupling for coupling the two axes on the same plane of space angle between the axis of the drive β ≤ 45 o occasions, passing the nominal torque 11.2-1120N.m. WSD is a single cross-type universal coupling, WS-type double-cross universal coupling angle between the axis of each section the maximum 45 o. Finished bore H7, on request, open keyway, six holes and four holes. Angle between two axes to allow a limited range with the operational needs change.