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. 22, 2007
Filed:
Mar. 07, 2005
Shingo Kono, Iwata, JP;
Kousuke Obayashi, Iwata, JP;
Hideki Akamatsu, Iwata, JP;
NTN Corporation, Osaka, JP;
Abstract
To provide a roller bearing assembly, which can be assembled with a minimized number of assembling steps and without any drop-off preventing sleeve being employed and which can provide a large load bearing capacity, the roller bearing assembly includes an inner racehaving a raceway surfacedefined therein, a plurality of rollers, and a ring-shaped roller retainerhaving a plurality of pocketsdefined therein in a direction circumferentially thereof for accommodating therein the respective rollersin a circular row. The roller retaineralso has pillarseach defined between the neighboring pockets. The roller retaineris positioned on the inner racewith each of the pillarsthereof intervening between the neighboring rollersto thereby retain the rollersin position within the respective pocketsfrom a direction radially outwardly of the row of the rollers. The diameter of the circle depicted by and in touch with the pillarsis chosen to be greater than the diameter of the pitch circle PCD depicted in the circular row of the rollers