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:
Jan. 18, 2005
Filed:
Sep. 20, 2002
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
There is provided a roller thrust bearing providing reduced differential slip, free of significant friction and wear, and providing increased longevity against flaking. The present invention provides a thrust bearing in the form of a roller thrust bearing including at least two radially arranged rows of rollers and a cage holding the rollers, the rollers including at least one roller crowned.