公开(公告)号：US20220018429A1

公开(公告)日：2022-01-20

申请号：US17378818

申请日：2021-07-19

申请人： Endurance Innovations LLC

发明人： David A. Smith

IPC分类号： F16H55/17 ,  F16H55/06

摘要： A gear unit includes a gear having a gear face and a plurality of gear teeth extending outwardly from the gear face. The gear unit also includes a hub integrally formed with the gear and arranged coaxially to the gear. The hub extends outwardly of the gear in a direction of a central axis of the gear. The gear unit also includes an undercut defined at an interface of the gear and the hub and includes a curved portion arranged at proximate to an inner end of the gear. The undercut reduces a stress concentration at the interface of the gear and the hub.

公开(公告)号：US11543012B2

公开(公告)日：2023-01-03

申请号：US17378818

申请日：2021-07-19

申请人： Endurance Innovations LLC

发明人： David A. Smith

IPC分类号： F16H55/06 ,  F16H55/17

摘要： A gear unit includes a gear having a gear face and a plurality of gear teeth extending outwardly from the gear face. The gear unit also includes a hub integrally formed with the gear and arranged coaxially to the gear. The hub extends outwardly of the gear in a direction of a central axis of the gear. The gear unit also includes an undercut defined at an interface of the gear and the hub and includes a curved portion arranged at proximate to an inner end of the gear. The undercut reduces a stress concentration at the interface of the gear and the hub.