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.

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 (100) includes at least a brush (10) and a shaft part (20), the shaft part (20) being provided with a grease feeding pathway (70) for feeding grease (G) from the exterior to the sliding surfaces of the shaft part (20) and the bush (10), the bush (10) being formed from a porous sintered metal, and a decomposition catalyst (S) being adhered to the sliding surface of the bush (10).

Abstract: In this grease composition, a grease produced by mixing at least one base oil selected from a mineral oil-type lubricant base oil, a synthetic lubricant base oil, and a biodegradable lubricant base oil with a thickener is compounded with a wax and water, and an additive such as a surfactant and a defoamer is optionally compounded therewith. A soap containing a calcium sulfonate complex is used as the thickener. A carnauba wax is preferably used as the wax. Since this grease composition is mainly composed of a grease and a wax, the grease composition extremely facilities its removal operation after application, is environmentally friendly, and has extremely excellent anti-corrosion performance. When the grease composition is used by being applied to a base material of an object to be welded, an effect of preventing the adhesion of welding spatters can be obtained.