Cross member unit with centering element

A cross member unit for connecting two joint yokes of a universal joint comprising:

• a cross member with four arms, two arms each form a pair, each pair of arms being centered on a common axis, said two axes extend perpendicularly relative to one another, each arm including a cylindrical outer face and an end face, each arm having a bore centered on its respective axis, said bores starting from the end face;
• a bearing bush coupled with each arm, said bearing bush including a cylindrical casing and a base which closes said casing at one end, an inner base face arranged opposite the associated end face of the arm, rolling contact members rotatably supporting the bearing bush on the associated arm;
• and
• a centering element on each arm inserted into the bore, said centering element including a spring element and a pressure element with a contact face and a connecting channel to enable passage of a lubricant, said spring element supported against the arm and loading the pressure element, said contact face of a friction bearing material projecting beyond the end face of the arm and being in contact with the inner base face.