The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 13, 2007
Filed:
Jan. 20, 2005
Paul H. Petruska, Royal Oak, MI (US);
Benjamin J. Walker, Ortonville, MI (US);
Paul H. Petruska, Royal Oak, MI (US);
Benjamin J. Walker, Ortonville, MI (US);
American Axle & Manufacturing, Inc., Detroit, MI (US);
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.