Patent ID: 8763768
Filing Date: 2014-07-01
Classification: F16D

Abstract:
1. A brake disk particularly suited for motor vehicles, said brake disc comprising: a brake disk friction ring comprising two separately formed friction bands; a brake disk chamber, said brake disk chamber further comprising a chamber ring and expansion elements arranged radially on said chamber ring, said expansion elements having ends facing away from said chamber ring extending between and connected to said friction bands; wherein said expansion elements are connected to said brake disk friction ring in a non-floating, positive bonded manner; wherein said expansion elements extend in a top planar view of said brake disc from an outer circumference of said chamber ring to an inner circumference of said brake disc friction ring in an arced radial and circumferential direction of said brake disc such that a radially outward most end of each said expansion element overlaps a radially inward most end of an adjacent said expansion element and all of said expansion elements extend in the same radial and circumferential direction and have a length from said radially outward most end to said radially inward most end that is longer than the shortest radial distance between said outer circumference of said chamber ring and said inner circumference of said brake disc friction ring in the top planar view such that said expansion elements are radially elastic and adapt to a thermal deformation of said brake disk friction ring; wherein the connection between said expansion elements and said brake disk friction ring is a cast connection; and each said expansion element has a first bending area wherein said expansion element is bent in an axial direction and a spaced apart second bending area wherein said expansion element is bent in a radial direction that imparts a radial twist between said radially most inward end and said radially most outward end.