Patent ID: 7338381

Claim:
A universal-joint shaft arrangement for prop shafts suitable for the transfer of torque having at least one spider, said shaft arrangement comprising: at least one link yoke; pins arranged around a center point and extending from a base body in pairs around a common axis, whereby the axes cross at the center point of the spider at a right angle; each pin having a surface arranged concentrically around the respective pin axis and forming a contact surface or a surface for supporting rolling elements of a roller bearing; a transition area between the surface forming a contact surface or supporting a contact surface and the base body; a functional surface formed on sides of the base body facing the respective pin and attached to each pin for supporting at least one seal element by forming a sealing surface of a seal pairing; the functional surface running perpendicular to a plane which is defined by the pin axis of the respective pin and the pin arranged next to it in the circumferential direction; the functional surface extending from the transition area at least into an area in the radial direction around the pin axis having a radius which is at least 1.5 times the respective pin radius; at least one centering surface arranged perpendicular to the respective functional surface for the immobilization of a seal holder carrying a sealing device and attached to each functional surface; a bearing assembly of each pin comprising at least one radial bearing and one axial bearing mounted in the area of a respective pin root; the bearing assembly sealed by means of the respective seal which is mounted in the seal holder; the seal forming the seal pairing with the side of the base body associated with the respective pin; the seal holder being attached to the spider.