Hub unit bearing for wheel
US6146022A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 24, 1998 |
| Grant date | Nov 14, 2000 |
| Priority date | — |
| Expiry date | Dec 24, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2300/10
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A hub unit bearing for automotive wheel comprises an outer joint member of constant velocity universal joint, an axle hub and an axle bearing assembled into one unit, the axle hub and the outer joint member being separably joined in a socket-and-spigot joint fashion, face splines being formed in opposing end surfaces of the axle hub and the outer joint member, one of double rows of inner raceways of the axle bearing being formed in the outer joint member, and quench-hardened layers of the inner raceways and quench-hardened layers of the face splines being formed continuously. A heat-affected zone incident to the quench-hardened inner raceway of the outer joint member may also be formed continuously with a heat-affected zone incident to quench-hardened ball grooves of the outer joint member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.