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:
Jun. 03, 2008
Filed:
Jul. 18, 2003
Sadaji Katogi, Iwata, JP;
Kazunari Yamamoto, Iwata, JP;
Hiedeo Shinagawa, Iwata, JP;
NTN Corporation, Osaka, JP;
Abstract
To provide a wheel support bearing assembly in which the frictional resistance can be effectively reduced while effects of minimizing leakage of the filled lubricant and ingress of dust and muddy water from outside of the bearing assembly are secured, the wheel support bearing assembly includes an outer memberan inner memberpositioned inside the outer memberwith an annular working space defined between it and the outer memberand rows of rolling elementsaccommodated within the annular working space and rollingly received in part within outer racewaysin the outer memberand in part within inner racewaysin the inner memberOpposite open ends of the annular working space are sealed by respective sealing membersandwhich are secured to one of the outer and inner membersandEach of those sealing membersanhas a plurality of elastic sealing lipstoortohaving their free ends oriented towards associated sealing surfacesdefined on the other of the outer and inner membersandoranddefined on a sealing contact membersecured to the other of the outer and inner membersandOf those elastic sealing lips, the axially innermost sealing lipsandfunction as a non-contact sealing lip that defines a respective gap of a size δand δsufficient to provide a non-contact sealing effect. The remaining sealing lipsandfunction as a contact sealing lip.