Patent ID: 7455635

Claim:
A casting roll for a twin-roll casting machine, for casting steel strip, with a cylinder sleeve, which can rotate on a stationary axle, in which pressure means for expanding the cylinder sleeve are provided, wherein several pressure means for expanding the cylinder sleeve are installed between the cylinder sleeve and the stationary axle, which have intermediate rings installed between the cylinder sleeve and the stationary axle, which are provided with bearings which allow the cylinder sleeve to rotate on the stationary axle, and that at least one supporting ring is provided, which provides both radial and axial support of the cylinder sleeve on the stationary axle and contains a cooling water supply to the cylinder sleeve, wherein the intermediate rings are rotationally supported on the stationary axle, wherein the outer surface of the cylinder sleeve can be caused to vibrate by pulsation of the pressure medium in at least one intermediate ring or by a vibrator installed on at least one intermediate ring, so that heat dissipation can be increased.