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. 17, 2012
Filed:
Dec. 13, 2006
Hisashi Ohtsuki, Iwata, JP;
Hiroto Suma, Iwata, JP;
Hisashi Ohtsuki, Iwata, JP;
Hiroto Suma, Iwata, JP;
NTN Corporation, Osaka, JP;
Abstract
In an assembly of retainers and tapered rollers to be easily incorporated into an outer ring having a rib portion on an inner peripheral surface on an outboard side thereof, recesses are formed in a large end surface and a small end surface of an outboard side tapered roller. Projections to be inserted into the recesses are formed in an outboard side retainer. A diameter of a circumcircle of the tapered rollers before they are inserted into a hub ring is smaller than an inner diameter of a rib portion. When a hub ring is inserted into the outer ring, the tapered rollers move in a radial direction to cause the diameter of the circumcircle to be greater than the inner diameter dimension of the rib portion, and as a result, the tapered rollers can be received in a specified position.