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US 8,122,782 B2Granted
Pinion shaft and bearing assembly
AssigneeGM Global Technology Operations LLC
InventorsSteven L. Clark, Jeffrey R. Lee, Christopher Scagnetti, Chris F Stinehour
Life of this patent
Estimating the term…
Abstract
A pinion shaft and bearing assembly is provided having two different surface finish interfaces. A first surface finish functions to locate the bearing to the pinion. A second surface finish functions to improve the cure time of an adhesive used to retain the bearing to the pinion.
Claims24
A pinion shaft and bearing assembly comprising:
- a pinion shaft having a first outer region having a first surface treatment and a second outer region having a second surface treatment;
- a pinion bearing disposed on the pinion shaft, the pinion bearing having a first inner region having a third surface treatment and a second inner region having a fourth surface treatment;
- and
- an adhesive disposed on at least one of the second outer region and the second inner region, and
- wherein the first surface treatment and the third surface treatment cooperate to locate the pinion bearing on the pinion shaft and the second surface treatment and the fourth surface treatment cooperate to increase a strength of a bond of the adhesive.
2 more elements
An assembly comprising:
- a pinion shaft having a first outer region and a second outer region;
- a pinion bearing disposed on the pinion shaft, the pinion bearing having a first inner region and a second inner region;
- and
- an adhesive disposed between the second outer region and the second inner region, and
- wherein each of the second outer region and the second inner region include a surface having a plurality of features disposed therein, the plurality of features having a surface finish rougher than a surface finish of at least one of the surface of the second outer region and second inner region and wherein the first inner region and the first outer region each have a surface finish smoother than the surface finish of at least one of the surface of the second outer region and the second inner region.
2 more elements
Dependencies are inferred from the claim text.