Compact axle hub unit
US6280336A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 21, 1998 |
| Grant date | Aug 28, 2001 |
| Priority date | — |
| Expiry date | Sep 21, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S464/906
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A hub unit includes an axle hub, a brake rotor, an axle bearing, and a constant velocity universal joint and transmits power of an engine of an automobile to drive wheels via a drive shaft. The axle hub takes the role as a bearing inner ring of the axle bearing and an outer joint member of the constant velocity universal joint. The axle hub, brake rotor, axel bearing, and constant velocity universal joint are compactly assembled. The ratio r2 (=Douter/PCDserr) between the outer diameter D.sub.outer of the axle hub (outer joint member) and the pitch circle diameter (PCDserr) of the tooth profile (serrations or splines) of the fitting portion of the inner joint member is set in a range of 2.5.ltoreq.r2<3.2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.