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, 2005
Filed:
Jul. 03, 2003
Kazutoshi Toda, Osaka, JP;
Naoki Morimura, Kashiba, JP;
Tadashi Mitarai, Osaka, JP;
Daisaku Tomita, Kashiwara, JP;
Kazutoshi Toda, Osaka, JP;
Naoki Morimura, Kashiba, JP;
Tadashi Mitarai, Osaka, JP;
Daisaku Tomita, Kashiwara, JP;
Koyo Seiko Co., Ltd., Osaka, JP;
Abstract
A double row tapered roller bearing with vertex of contact angles outside of the bearing is externally fitted to an outer periphery of a hub wheel to which a wheel is attached. A shaft end of the hub wheel is deformed outwardly in a radial direction so as to be caulked to an outer end surface of an inner ring of the bearing. A raceway track of at least one of the inner ring and the outer ring in the bearing is designed so as to satisfy a condition that a predetermined form is secured in a state that the raceway track is elastically deformed by the caulking. As a result, satisfactory rolling performance of the tapered roller after the caulking is secured, and a predetermined life of the bearing apparatus after the caulking can be obtained.