3 u00b0 lying within the self locking range a center cone ring 21 carrying cone surfaces 22 and 23 on both peripheral sides corresponding to the cone surfaces 13 and 19 i e having the same taper angle and lying flat against them is situated between cone rings 11 and 18 the cone surfaces 13 22 and 19 23 are arranged so that the vertices of the cone surfaces are situated on the same side of cone ring 10 namely the right side in fig1 cone ring 18 has a threaded hole 24 on the side facing radial flange 15 into which a headed screw 5 can be screwed from the outside of radial flange 15 by passing through this in a hole 25 several headed screws 5 are distributed evenly over the periphery for the most part the headed screws are arranged as closely together as they can be as long as screws 5 are loose the clamping set 10 forms a unit whose parts are intimately connected after insertion into the space between space 2 and the outer component 1 fastening begins by tightening of set screws 5 to achieve centering it can be expedient if the radial flange 15 has a cylindrical projection 26 that precisely fits into cylindrical recess 3 in this fashion slumping of outer component 1 on shaft 2 is avoided which inhibits uniform concentric fastening during tightening of set screws 5 the cone ring 18 moves axially against radial flange 15 and in so doing entrains center cone ring 21 the radial flange 15 forms with its surface positioned against cone rings 18 21 and directly perpendicular to the axis a stop 27 against which after a certain.