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. 06, 2005
Filed:
Sep. 19, 2001
Seizou Miyazaki, Kanagawa, JP;
Touru Takamizawa, Kanagawa, JP;
Seizou Miyazaki, Kanagawa, JP;
Touru Takamizawa, Kanagawa, JP;
NSK. Ltd., Tokyo, JP;
Abstract
A bearing unit includes: a housing; a shaft passing through the housing and rotatably supported on the housing; and a pair of rolling bearings disposed between the housing and the shaft and fitted to two positions on the shaft, which are axially spaced apart from each other. At least one rolling bearing has an inner ring press-fitted to the shaft. The inner ring defines an intermediate portion including an inner raceway surface. A reduced diameter part having an outer diameter smaller than the inner diameter of the inner ring and a predetermined width in the axial direction is formed on the shaft at a position corresponding to the intermediate portion so that inner circumferential surfaces located at both ends of the inner ring in the axial direction are interference fitted to the shaft and the inner circumferential surface at the intermediate portion thereof is clearance fitted to the shaft.