公开(公告)号：US20250055346A1

公开(公告)日：2025-02-13

申请号：US18446205

申请日：2023-08-08

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Sen Jiang ZHOU ,  Jeffrey R. Kelly

IPC: H02K5/173 ,  F16C33/66 ,  H02K7/08

Abstract: A motor includes a housing with a stator mounted to the housing. A drive shaft is rotatably mounted within the housing by a pair of bearing assemblies, the pair of bearing assemblies each including an inner bearing race and an outer bearing race. A rotor is mounted to the drive shaft. The drive shaft includes a longitudinal oil supply passage therein, the drive shaft including a first radial passage communicating with the longitudinal oil supply and extending to the inner race of a first one of the pair of bearing assemblies and a second radial passage communicating with the longitudinal oil supply and extending to the inner race of a second one of the pair of bearing assemblies. The inner race of the pair of bearing assemblies each include at least one lube hole.