LOBED BUSHING FOR TRACK ASSEMBLY AND TRACK-TYPE MACHINE USING SAME

Title:

LOBED BUSHING FOR TRACK ASSEMBLY AND TRACK-TYPE MACHINE USING SAME

Document Type and Number:

WIPO Patent Application WO/2010/065913

Kind Code:

A3

Abstract:

A lobed bushing (72) is provided for a track assembly (16) of a track-type machine (10). The track assembly includes a first chain (40) and a second chain (42) coupled together with a track pin (70). The bushing, defining a longitudinal axis (A), includes a central bore (78) oriented along the longitudinal axis and extending from a first end (80) of the bushing to a second end (82) of the bushing for receiving the track pin. The bushing includes a first lobe (96) positioned at a first location (110) about the longitudinal axis and a second lobe (112) positioned at a second location (114) about the longitudinal axis that is less than about 180° from the first location. The first end of the bushing has a substantially cylindrical shape.

Inventors:

SEBRIGHT JASON L (US)
DIEKEVERS MARK S (US)
ABELLO BENOIT (US)
WILLIAMSON STEVEN (US)

Application Number:

PCT/US2009/066850

Publication Date:

September 30, 2010

Filing Date:

December 04, 2009

Export Citation:

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Assignee:

CATERPILLAR INC (US)
SEBRIGHT JASON L (US)
DIEKEVERS MARK S (US)
ABELLO BENOIT (US)
WILLIAMSON STEVEN (US)

International Classes:

B62D55/08; B62D55/20; E02F9/02

Foreign References:

KR20080038632A	2008-05-07
KR200209232Y1	2001-01-15
US20030168912A1	2003-09-11

Other References: