A clutch operator for a disconnectable clutch useful in a motor vehicle,
and having a self-adjusting release bearing supported on a housing and in
the form of a rolling-contact bearing designed as an inclined-shoulder
bearing. The bearing has an outer bearing ring, a rotating inner bearing
ring and rolling bodies guided between the rings. An adjusting ring at
the inner bearing ring. A sliding element in a supporting region of the
adjusting ring on the inner bearing ring, and being in the form of
complementary spherical-cap segments. A noise-reducing and wear-reducing
coating, on which a spring element connected to the disconnectable clutch
is supported at a radially oriented annular flange of the adjusting ring.