Patent ID: 7681698
Filing Date: 2010-03-23
Classification: F16D

Abstract:
1. A brake disc to be used as an axially fixed or sliding disc in a disc brake, comprising: an outer circumference; an inner circumference; a number of alternating teeth and gaps along the inner circumference; and a means to reduce uneven elongation characteristics of the brake disc, wherein the brake disc has areas of reduced material thickness at each tooth compared with the material thickness at a bottom of each tooth gap, wherein at least some of the areas of the reduced material thickness extend radially outward past an imaginary circle at least partially defined by the bottom of the gaps; wherein the bottom of each gap is formed by arc-formed transition parts with adjacent teeth and a substantially straight part between the transition parts; wherein each transition part has a radius (R), and wherein a length of each substantially straight part is less than 1.5R.