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US 6,957,725 B2Granted
Automotive disc brake
AssigneeDana Corporation
InventorThomas L. Runels
Life of this patent
Estimating the term…
Abstract
A disc brake rotor is provided which is balanced by removal of metal from between two opposed friction faces of the rotor. The friction faces are provided by two discs which are separated from each other by radially extending ribs.
Claims7
A method of balancing a disc brake rotor, comprising the steps of:
- providing a rotor having a hub portion disposed about a first axis and a braking portion extending radially from said hub portion, said braking portion including first and second discs separated by a plurality of radially extending ribs, said first and second discs having opposed first and second friction faces;
- and
- machining an arcuate groove in said braking portion between said first and second friction faces
- wherein said machining of said arcuate groove includes removal of material from at least one disc and rib.
1 more element
A method of producing a disc brake rotor comprising:
- fabricating a rotor having a hub portion disposed about a first axis and a braking portion extending radially from said hub portion, said braking portion including first and second discs separated along said first axis by a plurality of radially extending ribs;
- machining opposed first and second friction faces on said respective first and second discs, said friction faces having a generally constant radius outer diameter with a radial center coterminous with said first axis;
- and
- machining an arcuate groove in said braking portion between said first and second faces to balance said disc brake rotor
- wherein said machining of said arcuate groove includes removal of material from at least one disc and rib.
2 more elements
Dependencies are inferred from the claim text.