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:
Sep. 29, 1987
Filed:
Dec. 02, 1986
Applicant:
Inventors:
Noriyuki Tsushima, Kuwana, JP;
Hirokazu Nakajima, Gifu, JP;
Assignee:
NTN Toyo Bearing Co., Ltd., Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
F16C / ; F16C / ;
U.S. Cl.
CPC ...
384565 ; 384491 ; 384492 ; 384569 ; 384625 ;
Abstract
An improved rolling bearing is proposed which has a longer life under heavy load and under lubrication with oil containing foreign matters. Its bearing rings and rolling elements are made of carburized steel having an oxygen content of 15 PPM or less and have a deeper surface hardened layer and a higher core hardness. It has a longer life even under lubrication with oil containing foreign matters.
Tsushima, Noriyuki. (1987). Rolling bearing (U.S. Patent No. 4696581). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4696581
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile