Invention Grant
- Patent Title: Bushing for a track-type undercarriage
- Patent Title (中): 用于履带式起落架的衬套
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Application No.: US12939537Application Date: 2010-11-04
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Publication No.: US08613486B2Publication Date: 2013-12-24
- Inventor: Eric J. Johannsen , Mark S. Diekevers
- Applicant: Eric J. Johannsen , Mark S. Diekevers
- Applicant Address: US IL Peoria
- Assignee: Caterpillar Inc.
- Current Assignee: Caterpillar Inc.
- Current Assignee Address: US IL Peoria
- Agent Steven M. Hanley
- Main IPC: B62D55/12
- IPC: B62D55/12 ; B21L3/00

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)/[(24EπDRBush4)(1−cos [(PL)/(16EπDRBush4))] 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.
Public/Granted literature
- US20110109154A1 Bushing For A Track-Type Undercarriage Public/Granted day:2011-05-12
Information query
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