BEARING DEVICE FOR CONSTRUCTION MACHINE
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United States of America Patent
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N/A
Issued Date -
Jan 15, 2015
app pub date -
Oct 18, 2012
filing date -
Jan 17, 2012
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The invention pertains to a bearing device used for a connecting part of a construction machine. The bearing device has: a boom having a boss part; an arm having left and right brackets that sandwich the boss part from the left and right sides thereof; a bush that is retained by an inner peripheral side of the boss part; a sealing that is disposed between the bush and the left and right brackets and that prevents a lubricant from leaking out of the bush; a thrust plate inserted between the left and right brackets and the boss part; and a coupling pin that penetrates and is inserted through the left and right brackets and the bush. The thrust plate has a partially cut out annular shape and an angle of a cut-out portion in the circumferential direction is less than 180° at an inner peripheral portion.
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