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:
Jun. 15, 2010
Filed:
Mar. 02, 2006
Jun Liu, Fujisawa, JP;
Ryosuke Yamada, Fujisawa, JP;
Kouji Kobayashi, Fujisawa, JP;
Azusa Otani, Fujisawa, JP;
Jun Liu, Fujisawa, JP;
Ryosuke Yamada, Fujisawa, JP;
Kouji Kobayashi, Fujisawa, JP;
Azusa Otani, Fujisawa, JP;
NSK Ltd., Tokyo, JP;
Abstract
A diameter dimension of a chamferwhich is formed on axial end faces of a cylindrical rollerwhich is retained in each pocketof a cagewhose axial positioning is realized by a roller guide at a portion which lies closer to an outside diameter side thereof is made such that a central flat surfacewhich lies on an inside diameter side of the chamferis not exposed from an external surface of an outside diameter side flat plate portion. Then, a difference between a minimum value Δof an amount by which the cylindrical rollerprojects from the external surface of the outside diameter side flat plate portionand a dimension Wof the chamferwith respect to a diameter direction thereof is made smaller than a thickness Tof the cage