displacement occurs fig2 illustrates the use of the rubber coupling in a longitudinal vibration damper it has rotational symmetry and comprises an outer machine part 1a which encloses an inner machine part 2a in the radial direction disposed between the two machine parts is a resilient body 3a which is vulcanized overall onto the inside wall 7a of the outer machine part 1a it also has two circular inwardly jutting projections 4a which by their innermost faces 5a are fixed to the inner machine part 2a between facing guide surfaces 6a there is a clearance of small width which assures good movability of the two machine parts 1 and 2 relative to each other and at the same time sufficiently precise guidance the embodiment of fig3 illustrates a rubber coupling for use as a torsional vibration absorber for high rotative speeds the latter consists of an outer machine part 1b and an inner machine part 2b formed for example by a flange of a disc the outer and inner machine parts have interleaved annular guide strips 8 of triangular section a layer of rubber is vulcanized along the guide strips 8 of the outer machine part 1b to form a resilient body 3b the resilient body 3b is slightly spaced from the guide strips 8 of the inner machine part as a result the surfaces 6b therebetween form guides which are readily movable relative to each other but guide.