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:
Jul. 18, 2006
Filed:
Apr. 02, 2004
Takayuki Yatabe, Kanagawa, JP;
Hisato Yamamoto, Kanagawa, JP;
Yasuhisa Terada, Kanagawa, JP;
Takashi Ogawa, Kanagawa, JP;
Tsuyoshi Koshi, Kanagawa, JP;
Hiroya Achiha, Kanagawa, JP;
Shoji Noguchi, Kanagawa, JP;
Takayuki Yatabe, Kanagawa, JP;
Hisato Yamamoto, Kanagawa, JP;
Yasuhisa Terada, Kanagawa, JP;
Takashi Ogawa, Kanagawa, JP;
Tsuyoshi Koshi, Kanagawa, JP;
Hiroya Achiha, Kanagawa, JP;
Shoji Noguchi, Kanagawa, JP;
NSK Ltd., Tokyo, JP;
Abstract
An outer ringis formed so as to have a large thickness and the pitch circle diameters Dp of ballsare shifted to the inside diameter side of the present ball bearing. The radiuses of curvature Ro, Ri of the section shapes of an outer ring racewayand an inner ring racewayare increased with respect to the diameter Db of the balls. At the same time, the diameter Db of the ballsand the thickness of an inner ringare not set excessively small to thereby be able not only to prevent Brinell impressions from being formed in the outer ring racewaybut also to prevent the inner ringfrom being damaged or cracked.