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:
Aug. 14, 2007
Filed:
Mar. 22, 2006
Syougo Suzuki, Iwata, JP;
Syougo Suzuki, Iwata, JP;
NTN Corporation, , JP;
Abstract
A wheel bearing apparatus has a wheel speed detecting apparatus which can prevent ingress of foreign matter into the wheel speed detecting portion of the wheel bearing apparatus. The wheel bearing apparatus has an encoder () mounted on the outer circumferential surface of an inner ring (). A sensor holder () is arranged on the end of the outer member () opposite to the encoder (). The sensor holder () includes an annular fitting member () and a holding portion (). The holding portion () is formed by synthetic resin molded integrally with the annular fitting member (). A wheel speed detecting sensor () is embedded in the resin and is positioned opposite to the encoder (), via a predetermined gap between the two. A seal () is arranged at the inboard side of the encoder (). The seal () includes a first sealing plate () and a second sealing plate () fit, respectively, on the sensor holder () and the inner ring (). The tip end () of the annular fitting member () is enveloped by plastic resin that forms the holding portion ().