A joint bearing in which a rolling member has been designed in such
a way that relative to the inner race track and outer race track
representing a circular arch, four contact points are obtained, the
rolling member is associated with a central cylindrical portion and
carrying portions which adjoin it at both ends, and has an outer
contour with a radius which is osculated relative to the inner race
track and the outer race track, so that a relatively small and
compact joint bearing is formed which permits both an angular
movement and a rotational movement while reducing friction.
