Machine track roller assembly
US7374257B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 11, 2005 |
| Grant date | May 20, 2008 |
| Priority date | — |
| Expiry date | Dec 30, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D55/15
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A track-type work machine is provided, including a roller frame and a track extending about the roller frame. A track roller is mounted along the roller frame and rotatable against the track. The track roller is rotatably supported by a bearing that includes a shaft extending in the track roller and at least one sleeve rotatable about the shaft. At least one of the sleeve and the track roller include a load transmitting crown. A method is further provided of reducing edge loading of a track roller bearing, by transmitting selected loads on the bearing toward a center thereof at least in part by crowning a rotatable sleeve of the bearing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.