to arrange the sealing body 7 12 to be fixedly connected to the sleeve member 4 11 this can be achieved by for example gluing vulcanization or the like this facilitates the handling of the seal because the two parts of the seal need not be handled stored and transported separately but rather as complete sealing units it is thus possible to ascertain that the sealing body is always in position when the seal is to be mounted with the embodiment of the sealing device according to the present invention illustrated in fig5 8 this problem is solved in a different manner in that the sleeve member 17 and its axial flange member 17 c is provided with at least two axially outwardly opening grooves 21 preferably diametrically opposed or symmetrically disposed around the sleeve as illustrated in fig5 and 6 these grooves 21 are adapted to receive projecting lugs 22 arranged on the sealing body 18 which are shown in fig7 in accordance with the present invention the cross sectional area and or shape of the sealing body is different from the cross sectional area and or shape of the axially open space when the sealing body is uncompressed as illustrated in various drawing figures the sealing body possesses a dimension with respect to at least an axial dimension of the sleeve shaped part that exceeds that of the axially open space the present invention thus provides a sealing device for sealing off in a rather effective manner a slit formed space between two radially extending surfaces arranged on a shaft the sealing device is relatively simple in construction and does not require a significant amount of skill in mounting the sealing device the principles preferred embodiments and modes of.