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:
May. 04, 2010
Filed:
Aug. 17, 2005
Kenji Tamada, Kuwana, JP;
Kikuo Maeda, Kuwana, JP;
Tomoaki Kawamura, Iwata, JP;
Hirokazu Nakashima, Kuwana, JP;
Takumi Fujita, Kuwana, JP;
Mitsuo Sasabe, Kuwana, JP;
Kenji Tamada, Kuwana, JP;
Kikuo Maeda, Kuwana, JP;
Tomoaki Kawamura, Iwata, JP;
Hirokazu Nakashima, Kuwana, JP;
Takumi Fujita, Kuwana, JP;
Mitsuo Sasabe, Kuwana, JP;
NTN Corporation, Osaka, JP;
Abstract
A method is provided for producing a roller thrust bearing having a plurality of rows of rollers, the bearing featuring reduced differential slip, reduced friction and wear, and increased longevity without flaking. The method includes forming a cage to accommodate the rollers, crowning the rollers, and arranging the rollers in pockets such that the rollers held by a pocket have respective end surfaces in direct contact with each other.