Hollow shaft

A hollow shaft with torque transmitting structural elements mounted along a length thereof, said hollow shaft comprising at least one torque transmitting structural element having a noncircular opening for mounting on a pipe provided with a substantially identical wall thickness and having at least one support body disposed between the pipe and the structural element, said structural element being provided with the noncircular opening into which the pipe is widened by internal pressure for positive and nonpositive connection to the structural element that covers a portion of the circumference thereof so that the pipe engages an inner wall of the structural element and another portion of the circumference thereof engages an outer wall of the one support body, wherein the support body is constructed as a component separate from any structural element, further characterized in that the structural element has a uniform wall thickness that is provided with the noncircular opening and still further characterized in that the wall of the pipe is provided with an increased thickness under each structural element.