Large diameter dirt and oil seal for a traction motor gearcase
US4730833A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 29, 1986 |
| Grant date | Mar 15, 1988 |
| Priority date | — |
| Expiry date | Dec 29, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/2191
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
For sealing the axle opening in a traction motor gearcase on the motor side thereof, an annular member of elastomeric material has a sleeve portion that is adapted to be clamped to a motor-supporting axle bearing thrust flange and a radially outwardly projecting flange portion that is adapted to fit inside an annular groove formed in an edge of the gearcase sidewall that surrounds the hub of an axle gear adjacent to the thrust flange. The seal further comprises a reinforcing ring having concentric outer and inner sections: the outer section is attached to the flange portion of the annular member to ensure a tight fit in the aforesaid groove, and the inner section extends from the groove to within close proximity of the axle gear hub and forms, with the axle-gear end of the sleeve portion, an annular trough for collecting axle bearing lube oil that escapes through the gear hub-thrust flange interface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.