Circle mounting and circle assembly for a motor grader
US4185700A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 1, 1978 |
| Grant date | Jan 29, 1980 |
| Priority date | — |
| Expiry date | Mar 1, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/2186
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An improved motor grader circle mounting and circle assembly has a mounting in which an annular upright wall with an outwardly extending integral top flange and a removable bottom flange form an outwardly open annular cavity. A circle structure of welded arcuate segments is rotatably mounted between the flanges and cooperates with the wall and flanges to form a close annular lubricant chamber, and a segmental internal ring gear is on the circle structure in the cavity. Renewable segmental lower and upper bearing plates are located between bearing surfaces of the circle mounting and the circle; and a lower oil sealing ring is so located as to permit removal of the bottom flange and lowering of the circle structure to replace all the bearing plates and a segmented upper oil seal without draining the lubricant chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.