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:
Nov. 08, 2011
Filed:
Jun. 17, 2009
Kikuo Fukada, Iwata, JP;
Hiroshi Kawamura, Iwata, JP;
Takayuki Norimatsu, Iwata, JP;
Yujiro Ono, Iwata, JP;
Syougo Suzuki, Iwata, JP;
Kikuo Fukada, Iwata, JP;
Hiroshi Kawamura, Iwata, JP;
Takayuki Norimatsu, Iwata, JP;
Yujiro Ono, Iwata, JP;
Syougo Suzuki, Iwata, JP;
NTN Corporation, , JP;
Abstract
A sensor holder has an encoder and a wheel speed sensor arranged opposite to the encoder, via a predetermined air gap. An annular fitting member is formed by pressing an anti-corrosive steel plate. A holding portion is formed of injection moldable synthetic resin and is integrally formed with the annular fitting member. The annular fitting member includes a cylindrical portion axially extending from an incline portion. A seal is arranged inboard of the sensor and fit between the inner circumference of the cylindrical portion of the annular fitting member and the outer circumference of the inner ring. The wheel speed sensor is embedded in the holding portion. At least a surface of the annular fitting member contacting the holding portion is roughened by shot blasting to have a surface roughness Ra of 0.8 or more.