Wheel bearing unit
US6428214B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 30, 2000 |
| Grant date | Aug 6, 2002 |
| Priority date | — |
| Expiry date | Jan 17, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49689
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A wheel bearing unit is with an outer race member having two rows of raceway surfaces formed in its inner peripheral surface. In the vicinity of the groove bottom portion of the raceway surface of an inner race member is provided a projection having a diameter greater than the inscribed circle diameter. The raceway surface, the outer peripheral surface of the projection, and smaller end face are concurrently ground to keep within a predetermined range of standard values the radius difference between the diameter of the groove bottom portion of the raceway surface of the inner race member and the outer diameter of the projection, as well as the core deviation between the groove bottom portion and the smaller end face.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.