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:
Mar. 23, 2010
Filed:
Feb. 27, 2004
Kouichi Okugami, Iwata, JP;
Yoshinori Muramatsu, Iwata, JP;
Chikara Ohki, Kuwana, JP;
Michio Hori, Kuwana, JP;
Kouichi Okugami, Iwata, JP;
Yoshinori Muramatsu, Iwata, JP;
Chikara Ohki, Kuwana, JP;
Michio Hori, Kuwana, JP;
NTN Corporation, Osaka, JP;
Abstract
A transmission component is incorporated into a transmission in which an input shaft, an output shaft, or a gear is rotatably supported by a rolling bearing. The component has a nitriding layer at a surface layer and an austenite grain with a grain size number falling within a range exceeding 10. This provides a transmission component having an increased anti-crack strength, enhanced dimensional stability, and a long fatigue life. A method of manufacturing such a transmission component and a tapered roller bearing are also provided.