Input gear assembly with pilot regions on shaft and inner bearing race
US11578760B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 30, 2021 |
| Grant date | Feb 14, 2023 |
| Priority date | — |
| Expiry date | Aug 2, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2048/423
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An input gear assembly in which the input gear is coupled to the input shaft via a pair of spaced-apart pilot regions of the input shaft. One of the pilot regions is disposed adjacent to one of the bearings used, with the pilot region formed in or on the input shaft itself and engaging a corresponding internal surface of the input gear. Another of the pilot regions is formed in the inner bearing raceway of another of the bearings used, with the pilot region formed as an elongate portion of the inner bearing raceway of the input shaft and engaging another corresponding internal surface of the input gear. For manufacturing simplicity, this additional pilot region and the remainder of the elongate inner bearing raceway have the same material properties, surface treatment, straightness, and cylindricity. This arrangement prevents tilting of the input gear with respect to the input shaft and bearing shaft, thereby enhancing performance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.