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:
Oct. 28, 2003
Filed:
Nov. 13, 2000
Hisashi Ohtsuki, Iwata, JP;
Takayuki Norimatsu, Iwata, JP;
Eiji Funahashi, Iwata, JP;
Koji Kametaka, Iwata, JP;
Motoharu Niki, Osaka, JP;
Katsumi Sugiyama, Iwata, JP;
NTN Corporation, Osaka, JP;
Abstract
A wheel bearing includes a sealing device positioned between inner and outer members and . This sealing device includes an elastic member , which eventually forms an encoder grid and is provided on a first annular sealing plate . A second annular sealing plate is provided with sealing lips to . An engagement between a cylindrical wall of the first annular sealing plate and the inner member is provided with an elastic member made of a material dissimilar to that for the elastic material . This elastic member may be a rubber coated layer, resin paint layer, a thin film of adhesive material or a ring-shaped rubber member. Thereby, any possible ingress of water across an engagement surface of the annular sealing plate is prevented, accompanied by increase of the lifetime of the bearing, with no problem associated with separation and displacement of the annular sealing plates. The magnetic flux density can also be easily secured.