Disc brake rotor

Abstract

A disc brake rotor produced by a machining method includes a friction disc having generally parallel inner and outer machined friction faces adapted to be frictionally engaged by a pair of brake pads of the disc brake assembly. Each of the inner and outer machined friction faces includes a spiral machining groove formed therein. When viewed from their respective faces, the spiral machining grooves are essentially identical to one another. The spiral machining groove formed in one of the inner and outer machined friction faces is operative during braking to produce a first force in one radial direction on one of the pair of brake pads. The spiral machining groove formed in the other one of the inner and outer machined friction faces is operative to produce a second force which is generally equal and in an opposite direction to the first on the other one of the pair of brake pads. As a result, the net radial force on the brake pads in mininized when the inner and outer machined friction faces are frictionally engaged by the brake pads.

Dependencies are inferred from the claim text.