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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.:

US 10479139 B1

PDFFull Text
Date of Patent:
Nov. 19, 2019

Filed:

Feb. 28, 2018

Wheel bearing apparatus

Applicant:

Ntn Corporation, Osaka-shi, JP;

Inventors:

Motohiro Tada, Iwata, JP;

Tadashi Mitsuishi, Iwata, JP;

Assignee:

NTN Corporation, Osaka-shi, JP;

Attorney:

Harness, Dickey & Pierce, P.L.C.

Primary Examiner:

James Pilkington

Int. Cl.
CPC ...
B60B 27/00 (2006.01); F16J 15/447 (2006.01); F16C 19/18 (2006.01); F16C 33/78 (2006.01); F16C 33/80 (2006.01); F16J 15/16 (2006.01); F16J 15/3232 (2016.01); F16J 15/3264 (2016.01);
U.S. Cl.
CPC ...
B60B 27/0073 (2013.01); B60B 27/0094 (2013.01); F16C 19/186 (2013.01); F16C 33/782 (2013.01); F16C 33/7876 (2013.01); F16C 33/7879 (2013.01); F16C 33/805 (2013.01); F16J 15/164 (2013.01); F16J 15/3232 (2013.01); F16J 15/3264 (2013.01); F16J 15/447 (2013.01); B60B 27/0005 (2013.01); B60B 2900/211 (2013.01); B60B 2900/5112 (2013.01); B60B 2900/5114 (2013.01); B60B 2900/5118 (2013.01); F16C 2240/46 (2013.01); F16C 2326/02 (2013.01);
Abstract

A wheel bearing apparatus has a seal () with a metal core () and a sealing member (). The sealing member () has a first side lip (), a second side lip () and a third side lip (). The first side lip () opposes a metal annulus () via an axial gap. The second side lip () is in sliding contact with a base (), via an axial interference. The third side lip () covers the outer surface of the metal core (). The tip end of the third side lip () is formed with a vertically flat surface opposing the inner-side surface () of the wheel mounting flange (), via an axial gap (S), to form a first labyrinth seal (). The outer edge of the metal annulus () opposes the sealing member (), via an axial gap, to form a second labyrinth seal ().

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