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:
Dec. 08, 2015
Filed:
Jun. 18, 2012
Yasuhito Fujikake, Kuwana, JP;
Tomoya Nakamura, Kuwana, JP;
Hiroaki Suzuki, Kuwana, JP;
NTN CORPORATION, Osaka, JP;
Abstract
Radial passages () that penetrate from the inner diameter side to the outer diameter side of a retainer () are provided between inner wall surface portions () of a pocket () facing each other in an axial direction of the retainer and a rolling element () so that the radial passages () serve as a grease reservoir as well as a grease passage for allowing the grease adhering to the rolling element () to move onto an outer ring raceway surface (). The radial passages () are made up of arc-shaped spaces () between the rolling element () and the inner wall surface portions () of the inner wall surface of a pocket () and segment shaped spaces () between the rolling element () and arcuate recesses () at the four corners of the pocket ().