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:
Oct. 17, 2006
Filed:
Mar. 16, 2001
Applicants:
Susumu Tanaka, Yokohama, JP;
Hiroyuki Ito, Chigasaki, JP;
Inventors:
Susumu Tanaka, Yokohama, JP;
Hiroyuki Ito, Chigasaki, JP;
Assignee:
NSK Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23C 8/20 (2006.01); C22D 38/40 (2006.01); F16C 33/30 (2006.01);
U.S. Cl.
CPC ...
Abstract
A rolling support device excellent in both of the characteristics of durability and corrosion resistance is provided. The inner ring () and the outer ring () comprises an austenitic stainless steel and has, on a raceway surface, a carburizing hardened layer containing no substantial carbides at a Vickers hardness (Hv) of 650 or more. The carburizing hardened layer is formed by applying fluoriding and then applying carburizing at a temperature of 540° C. or lower. The rolling element () is made of SiN.