Worm speed change apparatus and electric power steering apparatus
US6925902B2 · kind B2 · utility
0Cited by
10References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2002 |
| Grant date | Aug 9, 2005 |
| Priority date | — |
| Expiry date | Dec 27, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19828
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
There is provided a worm speed change apparatus comprising a worm shaft and a worm wheel meshed therewith. Rolling elements are rotatably disposed between a raceway groove formed directly in at least one of end portions of the worm shaft, and a bearing outer ring held by a housing. The worm shaft is directly supported by the rolling elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.