Vehicle Brake Disc
AssigneeBayerische Motoren Werke Aktiengesellschaft
InventorsKordian KOKOTT, Florian WALTHER
Life of this patent
Estimating the term…
Abstract
A disk brake for a motor vehicle includes an internally ventilated brake disk, a brake disk nave, and radially directed bores. In the radially directed first bores the connecting means are introduced such that they extend further into radially directed second bores in the friction ring into the friction ring. The brake disk nave forms the fit with a single friction ring half and this fit has material convexities, which point inward toward the cooling channels or the ribs, at the points at which the second bores are introduced for the connecting means.
Claims17
1-16. (canceled)
A disk brake for a motor vehicle, comprising:
- an internally ventilated brake disk having a friction ring with an external friction surface on each one of two friction ring halves connected by ribs which are located therebetween, the ribs forming cooling channels between the friction ring halves;
- a brake disk nave, which is connected to the friction ring via radially directed connecting means and has on its casing a collar, which extends in the radial direction and forms a fit to an external diameter of the friction ring by way of an outer circumferential surface and to an internal diameter of the friction ring by way of an inner circumferential surface;
- and
- radially directed first bores, in which the connecting means are introduced such that they extend further into radially directed second bores in the friction ring into the friction ring, wherein
- the brake disk nave forms the fit with a single friction ring half and this fit has material convexities, which point inward toward the cooling channels or the ribs, at the points at which the second bores are introduced for the connecting means.
A method for producing a brake disk comprising:
- producing corresponding fitting surfaces on the external diameter of a collar of a brake disk nave and on an internal diameter of a friction ring half which, as seen in the axial direction of a brake disk, is located closer to a nave base of the brake disk nave;
- pressing the brake disk nave into the friction ring half in the axial direction of the brake disk, with the nave base in front, from the side of the friction ring with the friction ring half which does not have a fit;
- ending the pressing of the brake disk nave into the friction ring half when shape parity is reached between the inner side of the friction ring half which has a fit and the brake disk nave collar, as seen in the axial direction of the brake disk, on the inner side of the friction ring half which has a fit;
- boring the first and second bores, at least in a respective work step per bore pair composed of a first and a second bore, and boring the cooling-air outlet channel;
- and
- introducing a respective connecting means into each bore pair composed of a first and a second bore.
Dependencies are inferred from the claim text.