公开(公告)号：US20190136959A1

公开(公告)日：2019-05-09

申请号：US15807846

申请日：2017-11-09

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Sachin C. Pagare ,  Jack M. Gayney ,  Hun J. Kim

IPC: F16H57/021 ,  F16C19/16 ,  F16C23/08 ,  F16C33/58 ,  F16H55/30 ,  F16H7/06 ,  F16H37/08 ,  F16H57/00

Abstract: An automotive propulsion system, a final drive assembly, and a bearing assembly are disclosed. The ball bearing assembly includes a bearing race structure having an inner race and an outer race, where the outer race is disposed concentrically about the inner race. A number of rotatable bearing elements (e.g., balls) are disposed between the inner race and the outer race. The bearing race structure has a plurality of threads extending therefrom (from either the outer race or the inner race). The bearing race structure is connected by the plurality of threads to an adjacent structure to prevent relative movement of the bearing race structure with respect to the adjacent structure.

公开(公告)号：US11035412B2

公开(公告)日：2021-06-15

申请号：US16151744

申请日：2018-10-04

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Rebecca K. Risko Cattell ,  Jack M. Gayney ,  Hun J. Kim

IPC: F16C19/02 ,  F16C35/07 ,  F16C43/04

Abstract: A bearing assembly and method of installation. A ball bearing includes an outer race, an inner race, and a separate L-shaped sleeve. In one embodiment, the sleeve is comprised of an axially extending body and a radially extending flange. The axially extending body is configured to be located between an inner diameter of the inner race and a transmission shaft, and the radially extending flange is configured to be located between an inner side surface of the inner race and the transmission shaft. The L-shaped sleeve with splines makes it feasible to sequentially press fit both the inner race and the outer race of the ball bearing. The spline in the axially extending body of the sleeve can slip-fit with the transmission shaft, allowing for ease of assembly, and enabling a press-fit connection between the ball bearing outer race and housing. This arrangement can help reduce wear, particularly to the housing, and better control axial movement of the bearing assembly due to gear thrust load direction change during operation.