A shrink disk for the frictional connection of rotating machine parts comprises at least an outer ring and an inner ring, which are connected together at at least one substantially axially extending conical contact surface. In this case, at least the outer ring or the inner ring comprises two axially spaced-apart ring elements. Furthermore, there is provided at least one intermediate ring which is arranged between the two ring elements, is connected to the ring elements in each case at a substantially radially extending conical contact surface and has a plurality of radially extending through-passage bores and/or threaded bores along its circumference. Furthermore, a plurality of adjusting screws is inserted through openings on the outer ring into the through-passage bores and/or threaded bores. The intermediate ring is radially displaceable and the two ring elements are axially displaceable by rotation of the adjusting screws.