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:
Apr. 05, 2011
Filed:
Nov. 16, 2004
Naoki Nakagawa, Kuwana, JP;
Masaharu Hori, Kuwana, JP;
Takeshi Maeda, Kuwana, JP;
Souichi Yagi, Kuwana, JP;
Mitsuo Sasabe, Osaka, JP;
Nobuyuki Mori, Kuwana, JP;
Naoki Nakagawa, Kuwana, JP;
Masaharu Hori, Kuwana, JP;
Takeshi Maeda, Kuwana, JP;
Souichi Yagi, Kuwana, JP;
Mitsuo Sasabe, Osaka, JP;
Nobuyuki Mori, Kuwana, JP;
NTN Corporation, Osaka, JP;
Abstract
A double-row self-aligning roller bearing includes left and right rows of rollers, arranged between an inner race and an outer race. A raceway surface of the outer race represents a spherical shape and the rollers have an outer peripheral surface following the shape of the raceway surface of the outer race. The rollers of the left and right roller rows have respective lengths different from each other. Also, the left and right roller rows have respective contact angles different from each other.