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. 20, 2010
Filed:
Jul. 23, 2007
Kousuke Obayashi, Fukuroi, JP;
Kazuyuki Yamamoto, Hamamatsu, JP;
Kousuke Obayashi, Fukuroi, JP;
Kazuyuki Yamamoto, Hamamatsu, JP;
NTN Corporation, Osaka, JP;
Abstract
A thrust roller bearing comprises a plurality of cylindrical rollers each having a rolling surface on its side surface and a cage formed of a disk-shaped member having a hole formed in the center and comprising a plurality of pockets penetrating in a thickness direction for housing the rollers. The pocket has a plurality of stopper parts at a wall surface opposed to the rolling surface of said roller, and a plurality of guide parts between said adjacent stopper parts. When it is assumed that the distance between the outer wall surface of said pocket in the diameter direction and the guide part located on the outer side in the diameter direction of the two guide parts is Land the distance between the inner wall surface of said pocket in the diameter direction and the guide part located inner side in the diameter direction of the two guide parts is L, it is satisfied that L>L.