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:
Jan. 13, 2004
Filed:
Aug. 28, 2001
Applicant:
Inventors:
Tomoaki Inoue, Mito, JP;
Kohji Aizawa, Hitachi, JP;
Masaaki Nakano, Hitachi, JP;
Masanori Katayama, Chiyoda, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16C 3/304 ;
U.S. Cl.
CPC ...
F16C 3/304 ;
Abstract
The present invention relates to a bearing used in a transmission. The radial bearing for supporting a rotating shaft of the transmission has a substantial elliptical-cylinder-shaped inner circumferential surface. At least two lubricating resin members are provided on the inner circumferential surface so that the members are extending in the axial direction and symmetric with respect to the central axis of the bearing. The rigidity of the bearing is increased as increasing the rotation speed of the shaft.