Rotor assembly and method
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United States of America Patent
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Sep 29, 2009
Grant Date -
May 31, 2007
app pub date -
May 25, 2006
filing date -
Nov 30, 2005
priority date (Note) -
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status (Latency Note)
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Abstract
The apparatus of the present invention provides a brake rotor assembly. The brake rotor assembly includes a generally annular rotor having a frictional surface and a radially inner rotor flange defining a plurality of rotor teeth. The brake rotor assembly also includes a hub section integrally formed onto the rotor. The hub section has a peripheral hub flange configured to engage the plurality of rotor teeth and thereby prevent rotation of the hub section relative to the rotor. The rotor is preferably composed of a first material such as steel or cast iron, and the hub section is preferably composed of a second material such as aluminum or magnesium that is lighter by volume than the first material. Accordingly, the overall weight of the rotor assembly is less than that of a comparable rotor assembly composed entirely of steel or cast iron.
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