Angela D Willis

US Patent:

20090190870, Jul 30, 2009

Filed:

Jan 25, 2008

Appl. No.:

12/020309

Inventors:

Joseph Young-Long Chen - Ann Arbor MI, US
Jack M. Gayney - Woodhaven MI, US
Angela P. Willis - Willis MI, US
Hun J. Kim - Novi MI, US

Assignee:

GM GLOBAL TECHNOLOGY OPERATIONS, INC. - DETROIT MI

International Classification:

F16C 17/04
F16H 57/08

US Classification:

384420, 475331

Abstract:

An outer needle bearing race and thrust washer assembly provides improved lubrication for a pinion gear of a planetary gear assembly. The bearing race and thrust washer assembly are used in pairs with the bearing races disposed within the planet or pinion gear and the thrust washers disposed adjacent the end faces of the planet or pinion gear. Each assembly includes a cylindrical bearing portion having a crowned, i.e., convex, inner surface which is secured at one end to a thrust washer. The outside face of the washer includes a plurality of shallow radial channels or grooves. A plurality of oil passageways extend from the grooved surface of the washer to its opposite surface inside the cylindrical bearing portion.

Address:

5998 Whittier St, Detroit, MI 48224

Phone:

(313)8864171

VIN:

2GCEK19J771609831

Make:

CHEVROLET

Model:

SILVERADO 1500

Year:

2007