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. 26, 2011
Filed:
Oct. 11, 2005
Yukihisa Tsumori, Mie, JP;
Takuya Ozu, Mie, JP;
Yukihisa Tsumori, Mie, JP;
Takuya Ozu, Mie, JP;
NTN Corporation, Osaka-shi, JP;
Abstract
A strength of a machined cage for a cylindrical roller bearing is increased without reducing a bearing life. An integral machined cage for a cylindrical roller bearing includes: a pair of side plates (); a plurality of columns (), which are arranged in a circumferential direction, for connecting the pair of side plates (); pockets () formed between the adjacent columns (); and relief portions () provided at four corners of each of the pockets (), in which as viewed from a section perpendicular to an axis of the cage, the columns () have side surfaces each constituting a circular arc shape, and the relief portions () are in parallel to the side surfaces of the columns ().