6 in this arrangement brake support member 1 exerts the oppositely directed holding forces on caliper 13 illustrated by vectors fi and fa in fig1 as a result of the opposed arrangement of surfaces 28 and 29 radially inwardly directed holding forces act on points b and c connected by line y 1 and radially outwardly directed holding forces act on points a and d connected by line y 2 in fig2 the crossing point of the lines y 1 and y 2 lies in the caliper 39 s center of gravity s as a result of this arrangement inertial forces acting in a radial direction on caliper 13 are taken up substantially by the holding forces present on connecting lines y 1 and y 2 respectively so that tilting of the caliper in its guidings is largely avoided elastic bushings 22 and 23 embrace pins 11 and 12 on all sides in a radial direction however bushings 22 and 23 effect a support mainly with their area lying at the tip of vectors fi in order to clamp caliper 13 relative to its guidings and thereby keep it from rattling pins 11 and 12 are eccentrically arranged relative to bores 20 and 21 in a radial direction relative to the center of bore 20 pin 11 is located radially outwardly while pin 12 is located radially inwardly relative to the center of bore 21 thereby elastic bushings 22 and 23 are compressed unilaterally so that a torque acting clockwise in fig1 is applied to caliper 13 urging caliper surfaces 28 and 29 into engagement with projections 24 and 25 thereby disengagement of surfaces 28 and 29 from projections 24 and 25 is prevented further the friction between surfaces 28 and 29 and.