Method of forming an outer ring of an axle bearing
US5727317A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 20, 1996 |
| Grant date | Mar 17, 1998 |
| Priority date | — |
| Expiry date | Mar 20, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/4981
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An outer ring of an axle bearing is heat-treated and a through hole can be formed quickly and reliably. The outer ring has raceways on its inner periphery along which rolling elements roll. A through hole for mounting an antilock brake sensor is formed in the outer ring to extend from its outer periphery to the inner periphery. A plug is inserted into the hole thus formed. After hardening the raceways, the plug is pulled out of the hole. Since the hole is formed before hardening the raceways, it can be formed easily by drilling with an ordinary carbon steel tool. Since the raceways are hardened after inserting the rod-shaped metal plug into the hole 9, the heat produced during hardening will disperse through the plug. It is thus possible to prevent shoulder portions of the raceways from melting due to overheating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.