receiving device 22 shown in fig1 and 3 pressure ring 4 is placed in receiving space 22 and is bounded by sealing ring 3 and a wall of the housing 1 as well as by a front surface of a thrust piece 12 which is arranged between the sealing ring 3 and the spacer ring 6 and encloses the shaft 2 in a ring shape as shown in fig2 when the force f is applied deformation forces acting upon the pressure ring 4 are radially guided in the direction of the shaft 2 causing a partial deformation and forming a beaded ring 5 on an interior wall of the sealing ring 3 that partial deformation depending on the applied force f has the result that beaded ring 5 rests against shaft 2 or almost rests against shaft 2 in the case of the embodiment illustrated in fig1 the sealing ring 3 is axially displaced by pressure onto the spacer ring 6 in which case the sealing ring 3 experiences a pretensioning by the axial reduction of a chamber 9 adjacent to the housing 1 in this case the force f is greater than the product of the pressure of the medium in the high pressure space 10 and the ring surface of the sealing ring 3 acted upon by pressure in the high pressure space 10 minus the pressure in the low pressure area 11 multiplied by the effective ring surface of the spacer ring 6 depending on the adjustment of the force f by way of screws threads or hydraulic devices not shown the beaded ring 5 moves more or less closer to the shaft 2 in this case the beaded ring 5 may even exercise a certain compressive stress upon the shaft.