Patent ID: 7703584

Claim:
A divided disk brake arrangement comprising a brake disk ( 13 ) with braking surfaces ( 11 ), and a disk holder ( 12 ), which is connected to the brake disk ( 13 ) in a torsion-proof manner and secured by a screw connection, the disk holder ( 12 ) and the brake disk ( 13 ) being mounted so that they can move relative to each other in a radial direction to compensate for different thermal expansions, wherein at least one conical surface ( 18 ) is provided at the brake disk ( 13 ) in a region of a screw connection bearing area of said brake disc, and wherein the brake disk ( 13 ) includes a first annular gear ( 33 ), the disk holder ( 12 ) includes a second annular gear ( 34 ), wherein said first and second annular gears ( 33 , 34 ) each are a face gear with axially projecting and radially conically extending teeth, and the first annular gear ( 33 ) and the second annular gear ( 34 ) mesh with each other and form a shaft coupling ( 30 ) which transmits torque from the brake disk ( 13 ) to the disk holder ( 12 ) whereby the connection between the disk holder ( 12 ) and the brake disk ( 13 ) is free of play or in which play is substantially reduced in spite of the different thermal expansions and wherein a first side of the brake disk ( 13 ) opposite to a second side of the brake disk bearing the first annular gear ( 33 ) is provided with said at least one conical surface ( 18 ); wherein the screw connection is formed by at least one tensioning screw ( 19 ) which extends through the disk holder ( 12 ) and the brake disk ( 13 ); and wherein an angular inclination of said at least one conical surface ( 18 ) relative to a rotational axis (A) of the disk brake arrangement ( 10 ) is defined by a line (V), said line (V) extending from a midpoint (M) of said first and second annular gears ( 33 , 34 ) to a point (W), where an axis (S) of said at least one tensioning screw ( 19 ) intersects said at least one conical surface ( 18 ), and wherein said midpoint (M) is defined by an intersection of a plane of said first and second annular gears ( 33 , 34 ) and their axis of rotation.