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:
Feb. 25, 2020
Filed:
Dec. 20, 2016
Mitsubishi Materials Corporation, Tokyo, JP;
Diamet Corporation, Niigata-shi, JP;
MITSUBISHI MATERIALS CORPORATION, Tokyo, JP;
DIAMET CORPORATION, Niigata-shi, JP;
Abstract
An oil-retaining sintered bearing in which friction coefficient can be reduced and a sliding property as a bearing can be improved by supplying a sufficient amount of oil to a sliding surface and preventing the supplied oil from moving to an interior from the sliding surface; a sliding surfacesupporting an outer peripheral surface of a shaft and a helical oiling surfacearound a shaft axis of a bearing hole are adjacently formed on an inner peripheral surface of the bearing hole into which the shaft is inserted; a surface open rate at the sliding surfaceis not larger than 10%; and a surface open rate at the oiling surface exceeds 10%.