Bearings – Rotary bearing – Antifriction bearing
Reexamination Certificate
2006-03-22
2008-12-30
Charles, Marcus (Department: 3682)
Bearings
Rotary bearing
Antifriction bearing
C384S485000, C384S490000
Reexamination Certificate
active
07470066
ABSTRACT:
The present invention provides a transmission pump bearing assembly having an integral seal. The apparatus preferably includes an outer race retained by a pump body such that the outer race is fixed relative thereto. An inner race is disposed radially within the outer race, and is engaged by a damper hub such that the inner race rotates along with the damper hub. The inner race includes a radially recessed portion adapted to accommodate a seal and maintain tight clearance to control leakage. A plurality of bearing members are disposed radially between the inner race and the outer race. The seal disposed within the radially recessed portion of the inner race is configured to engage the pump body and thereby seal an interface between the inner race and the pump body such that leaked hydraulic fluid is restricted from passing therebetween. A bearing cage is configured to axially retain and/or to maintain circumferential spacing of the plurality of bearing members.
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Diemer John A.
Rhein Robert E.
Charles Marcus
GM Global Technology Operations Inc.
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