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:
Nov. 21, 2006
Filed:
Dec. 06, 2002
Shinji Fujita, Hiratsuka, JP;
Youichi Matsumoto, Yokohama, JP;
Yasuo Murakami, Hadano, JP;
Nobuaki Mitamura, Yokohama, JP;
Shigeru Okita, Yokohama, JP;
Shinji Fujita, Hiratsuka, JP;
Youichi Matsumoto, Yokohama, JP;
Yasuo Murakami, Hadano, JP;
Nobuaki Mitamura, Yokohama, JP;
Shigeru Okita, Yokohama, JP;
NSK Ltd., Tokyo, JP;
Abstract
A rolling bearing intended for longer life by improving seizure resistance and wear resistance in the circumstance with slip contact or in the circumstance where lubricant tends to be exhausted, which is manufactured by applying carburization or carbonitridation to an Si-added material to disperse and precipitate carbides or carbonitrides containing Si or Si—X (X=one or more of Mn, Mo, and Cr) thereby improving the seizure resistance and the wear resistance by the self-lubrication effect thereof, the size of the carbides or carbonitrides being preferably 10 μm or less for preventing flaking, and the area ratio for the carbides or carbonitrides being preferably 1.0–30% for obtaining sufficient self-lubrication effect.