Sliding bearing and construction machine provided with same
AssigneeHitachi Construction Machinery Co., Ltd.
InventorsHideki Akita, Osamu Gokita, Shigeyuki Sakurai, Yasuchika Nagai
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Abstract
Provided are a novel sliding bearing and a construction machine provided with same, the sliding bearing being capable of maintaining an excellent sliding performance over a long period of time and exhibiting an excellent strength. A sliding bearing includes at least a brush and a shaft part, the shaft part being provided with a grease feeding pathway for feeding grease from the exterior to the sliding surfaces of the shaft part and the bush, the bush being formed from a porous sintered metal, and a decomposition catalyst being adhered to the sliding surface of the bush.
Claims9
A sliding bearing comprising:
- a bush formed from a porous sintered metal;
- a shaft part inserted in an axial bore of the bush such that the shaft part slides relative to the bush;
- a grease for lubricating a sliding surface of the shaft part and a sliding surface of the bush;
- a grease feeding pathway formed in the shaft part for feeding the grease to the sliding surface of the shaft part and the sliding surface of the bush from outside;
- and
- a decomposition catalyst provided in the sliding surface of the bush for decomposing the grease to separate a base oil.
Dependencies are inferred from the claim text.