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. 02, 2007
Filed:
Apr. 11, 2005
Yoichi Matsumoto, Kanagawa, JP;
Koichi Yamamoto, Kanagawa, JP;
Seigou Urakami, Kanagawa, JP;
Aya Kikuchi, Kanagawa, JP;
Yoichi Matsumoto, Kanagawa, JP;
Koichi Yamamoto, Kanagawa, JP;
Seigou Urakami, Kanagawa, JP;
Aya Kikuchi, Kanagawa, JP;
NSK Ltd., Tokyo, JP;
Abstract
There is adopted a constitution of arranging a spacerat a shaft center portion and arranging a retainerand a roller(cage & roller) at two sides thereof in order to prevent the roller (roller) from being rolled at the center portion in an axial direction of the shaft maximizing an amount of bending the shaft. At the double side rows, the bending of the shaft is not as large as that of the center portion and therefore, the roller (roller) is not hampered from being rolled smoothly.