Planetary gear transmission systems or components – Differential planetary gearing – Bevel gear differential
Reexamination Certificate
2007-10-16
2007-10-16
Marmor, Charles A. (Department: 3681)
Planetary gear transmission systems or components
Differential planetary gearing
Bevel gear differential
C384S905000, C384S557000
Reexamination Certificate
active
11705166
ABSTRACT:
A power transmission device includes a housing, a differential assembly having a case and a bearing assembly rotatably supporting the case within the housing. A preload is applied to the bearing assembly along a load path. A shim is positioned in the load path with the bearing assembly. The shim is constructed at least in part from a material having a predetermined coefficient of thermal expansion such that the shim is operable to compensate for different rates of thermal expansion in the components within the load path to maintain a desired bearing preload or a range of operating temperatures.
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Petruska Paul H.
Walker Benjamin J.
American Axle & Manufacturing Inc.
Harness & Dickey & Pierce P.L.C.
Holmes Justin K.
Marmor Charles A.
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