Process for producing bearing device for wheel
US8302309B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 10, 2006 |
| Grant date | Nov 6, 2012 |
| Priority date | — |
| Expiry date | Feb 24, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/497
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method is directed to a production of a bearing device for a wheel including an inner member and an outer member rotatable relative to each other through a plurality of rolling elements, in which a component part forming one of the inner member and the outer member is a hot forged product. In the practice of this method, during or at the end of a hot forging step for hot forging the component part, a portion of the component part is cooled by spraying a coolant or by controlling an atmospheric temperature, to thereby render a matrix of the component part to represent a standard structure and render a surface portion of the component part to represent a non-standard structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.