Metal working – Method of mechanical manufacture – Process for making bearing or component thereof
Reexamination Certificate
2008-02-13
2011-10-25
Bryant, David (Department: 3726)
Metal working
Method of mechanical manufacture
Process for making bearing or component thereof
C029S898041, C029S898070, C384S123000, C384S294000, C384S368000
Reexamination Certificate
active
08042272
ABSTRACT:
A thrust bearing assembly includes an upper thrust bearing and a lower thrust bearing for an engine assembly of a vehicle and which, are preferably, identically configured. The thrust bearings each include an arcuate bearing shell with a concave inner surface and a convex outer surface, and each includes a pair of axially spaced flanges extending radially outwardly of the bearing shells. The flanges may be formed as one piece with the bearing shell, and one flange is thicker than the other flange. The thicker flanges are load bearing and preferably contoured, whereas the thinner flanges are not. The bearings are installed with the thick flange of each bearing matched radially opposite the thin flange of the companion bearing to minimize fatigue and failure normally attributed to repeated seating and unseating of bearing assemblies having flanges of equal thickness caused by changing bending loads imparted by a shaft.
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Thompson Ronald J.
Welch Sean M.
Bryant David
Dickinson Wright PLLC
Federal-Mogul World Wide Inc.
Stearns Robert L.
Taousakis Alexander P
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