SINTERED BEARING AND METHOD FOR PRODUCING SINTERED BEARING

In a sintered bearing, a problem is to improve mechanical strength and vibration resisting properties and prevent a rotation shaft from being damaged.A sintered bearing 20 according to the present invention is made of a sintered compact containing nickel silver (Cu-Ni-Zn) as a base. Here, in the sin...

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Bibliographische Detailangaben
Hauptverfasser:	TANABE, Shigeyuki, NARA, Hiroshi, ASO, Shinobu
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ALLOYS BEARINGS BLASTING CASTING CHEMISTRY CONVERSION OR DISTRIBUTION OF ELECTRIC POWER DYNAMO-ELECTRIC MACHINES ELECTRICITY ELEMENTS OR CRANKSHAFT MECHANISMS ENGINEERING ELEMENTS AND UNITS FERROUS OR NON-FERROUS ALLOYS FLEXIBLE SHAFTS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS GENERATION HEATING LIGHTING MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER MECHANICAL ENGINEERING METALLURGY PERFORMING OPERATIONS POWDER METALLURGY ROTARY BODIES OTHER THAN GEARING ELEMENTS SHAFTS THERMAL INSULATION IN GENERAL TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS WEAPONS WORKING METALLIC POWDER
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Beschreibung
Zusammenfassung:	In a sintered bearing, a problem is to improve mechanical strength and vibration resisting properties and prevent a rotation shaft from being damaged.A sintered bearing 20 according to the present invention is made of a sintered compact containing nickel silver (Cu-Ni-Zn) as a base. Here, in the sintered bearing 20, P is not added in the sintered compact. Alternatively, a content of P in the sintered compact is less than 0.05 mass% in terms of mass ratio to a total mass. Consequently, crystal grains constituting the sintered compact can be micronized. In particular, in the sintered bearing 20, an average crystal particle diameter of the crystal grains constituting the sintered compact is 20 µm or less. Consequently, the mechanical strength and the vibration resisting properties can be improved, and the rotation shaft can be prevented from being damaged.