A release bearing includes a rolling-contact bearing having a non-rotatable
inner ring, a rotating outer ring, and plural rolling members located
between the inner and outer rings, An adjustment ring having a ring flange
is provided for abutment against a disk spring of a clutch mechanism, and
a sliding element made of bearing material is disposed in a support zone
defined between complementary calotte-shaped portions of the outer ring
and the adjustment ring so that the adjustment ring and the outer ring are
movable relative to one another for effecting a self-adjustment of the
release bearing.