into the conical groove 6 in view of the fact that the guide element 2 of the embodiment according to fig3 is constructed of a thin walled material there arises a further possibility for facilitating fastening of the roller bearing assembly 1 fig4 and 5 show a detail of the guide element 2 as seen from the exterior thereof in views taken in the direction of the arrow a of fig3 as shown in fig4 and 5 the guide element 2 is formed with openings 5 in which there are engaged the lips 4 of the connecting element 3 in order to provide a connection which is rotatively rigid but which is not rigid in the radial direction as seen in fig5 the openings 5 are provided with a free punch or slit 23 which extends toward the axial edge of the outer leg of the sheet metal part in an axial direction thereby forming tongues 12 as indicated in fig4 the tongues 12 may be bent outwardly in order to allow insertion of the roller bearing assembly 1 with the connecting element 3 already mounted thereon with the tongues 12 bent upwardly as shown in fig4 an opening is provided which permits the connecting element 3 to be moved without obstacle into the openings 5 subsequently the tongues 12 may be again bent downwardly into the position according to fig5 whereby the edge of the openings is once again closed as a result of this.