Patent ID: 8070376

Claim:
A connection system comprising a shaft and a joint, said shaft comprising a shaft journal configured on an end of the shaft to be connected with the joint, and said joint comprising an inner hub having a recess for insertion of said shaft journal, and an outer hub, wherein the shaft journal and the recess are adapted to one another in such a manner that in a first part of an insertion path, the shaft journal is displaced in the recess essentially with a force which is comparatively low in regard to a great expenditure of force, which must be applied in a second part of the insertion path for displacement of the shaft journal in the recess for connecting said shaft to said joint, and wherein the system further comprises a sleeve nut for locking the shaft journal in place in the recess, against axial displacement and wherein radial play exists between a front section of the shaft journal and an entry section of the recess, in the first part of the insertion path, and that in the second part of the insertion path, the shaft journal and the recess are configured to fit precisely with one another, and wherein a radial play between the shaft journal and the recess decreases over the second part of the insertion path by means of a conical configuration of at least one of an outer surface of the shaft journal and an inner surface of the recess, and wherein a profiling for a transfer of torque is provided on the outer surface of the shaft journal and the inner surface of the recess, said profiling provided on the outer surface of the shaft journal being provided on the front section of the shaft journal corresponding to the first part of the insertion path, the profiling provided on the front section of the shaft journal corresponding to and engaging a respective profiling of the recess, and wherein the sleeve nut is provided with a thread which engages in a thread formed on an outside of the inner hub.