The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 02, 2016
Filed:
Sep. 24, 2013
Hitachi Chemical Company, Ltd., Tokyo, JP;
Hidekazu Tokushima, Kashiwa, JP;
Hideaki Kawata, Matsudo, JP;
Daisuke Fukae, Matsudo, JP;
Osamu Mawatari, Matsudo, JP;
Hideki Akita, Tsuchiura, JP;
Makoto Sugaya, Narita, JP;
Akiko Satou, Ushiku, JP;
Osamu Gokita, Tsukuba, JP;
Shigeyuki Sakurai, Tsukuba, JP;
HITACHI CHEMICAL COMPANY, LTD., Tokyo, JP;
Abstract
A sliding bearing assembly for joints of construction equipment can be provided, in which production cost is reduced by decreasing the used amount of Cu and sulfides having high fixability to a matrix are dispersed. The sliding bearing assembly for joints of construction equipment, includes at least a shaft and a bush made of an iron-based sintered material which functions as a sliding bearing, in which the bush has the overall composition of, by mass %, 0.1 to 10% of Cu, 0.2 to 1.2% of C, 0.03 to 0.9% of Mn, 0.36 to 1.68% of S, and the balance of Fe and inevitable impurities, a metal structure has pores dispersed in a matrix mainly including a martensite structure and sulfide particles precipitated and dispersed, and the sulfide particles are dispersed at 1 to 7 volume % in the matrix.