Multi-part universal joint shaft of adjustable length

摘要

It is the object of the invention to improve a universal joint shaft as regards the connection of the profile tube to the yoke in such a way that maximum strength with optimum use of materials is achieved. This object is achieved by the fact that the beads (4) of the lemon-shaped joint tube are placed in the axial centre plane of the yoke arms (3) as the zone of maximum strength. To produce the yoke (1) according to the invention, the yoke arms (3) can be formed in a first operation in a plane perpendicular to their plane of action, for example by extrusion, forging or a similar process, and brought into their angled plane by a bending operation towards the inside. In another method, the yoke arms (3) can be attached to the yoke shank (2) in a known manner by welding. <IMAGE>