Title:
BUSHING FOR TRACKED UNDERCARRIAGES
Document Type and Number:
WIPO Patent Application WO/2011/057053
Kind Code:
A3
Abstract:
A bushing for use in a tracked undercarriage of a track-type machine includes a first end and a second end disposed opposite the first end. An outer surface extends between the first end and the second end and is shaped to engage a sprocket of the tracked undercarriage. The bushing also includes an annular inner surface disposed between the first end and the second end defining an internal cavity shaped to receive a track pin. An innermost portion of the inner surface forms a crown having a radius less than or equal to (PL2)/[(24E πDRBush
4)(l-cos[(PL)/(16EπDRBush
4))] where L is the length of the bushing, P is the weight of the track-type machine, E is the Modulus of Elasticity of the bushing, and RBush is a radius of the innermost portion of the annular internal cavity.
Inventors:
JOHANNESEN ERIC J (US)
DIEKEVERS MARK S (US)
DIEKEVERS MARK S (US)
Application Number:
PCT/US2010/055584
Publication Date:
August 25, 2011
Filing Date:
November 05, 2010
Export Citation:
Assignee:
CATERPILLAR INC (US)
JOHANNESEN ERIC J (US)
DIEKEVERS MARK S (US)
JOHANNESEN ERIC J (US)
DIEKEVERS MARK S (US)
International Classes:
B62D55/08; B62D55/14; B62D55/205
Foreign References:
| US6485116B1 | 2002-11-26 | |||
| JP2006219127A | 2006-08-24 | |||
| US6382742B1 | 2002-05-07 | |||
| US5032192A | 1991-07-16 |
Other References:
See also references of EP 2499039A4
Attorney, Agent or Firm:
HANLEY, Steven M. et al. (Peoria, IL, US)
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