A constant-velocity universal joint of a tripod type, includes a housing representing a first rotation part and having three tracks, each track having two flat running surfaces in parallel relationship, a second rotation part configured as a tripod spider and having three arms defined by arm axes arranged in a plane and intersecting in a joint axis. The arms are guided in the running surfaces of the housing, wherein each of the arms is received in a rolling-contact bearing including an inner ring, an outer ring, cylindrical rolling elements, and retainer rings arranged as mirror images of one another for mutual axial securement of all components of the rolling-contact bearing with respect to the arm axis. The outer ring includes inner collars which are arranged as mirror images of one another, each inner collar configured with two radial steps to define an axially inner collar segment and an axially outer collar segment, with the rolling elements guided on the inner collar segment and with the retainer rings guided on the outer collar segment.
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