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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 9308777 B1

PDFFull Text
Date of Patent:
Apr. 12, 2016

Filed:

Jun. 27, 2014

Bearing device for a wheel

Applicants:

Tohru Nakagawa, Shizuoka, JP;

Yuichi Asano, Shizuoka, JP;

Masahiro Ozawa, Shizuoka, JP;

Masayuki Kuroda, Hyogo, JP;

Inventors:

Tohru Nakagawa, Shizuoka, JP;

Yuichi Asano, Shizuoka, JP;

Masahiro Ozawa, Shizuoka, JP;

Masayuki Kuroda, Hyogo, JP;

Assignee:

NTN CORPORATION, Osaka, JP;

Attorney:

Wenderoth, Lind & Ponack, L.L.P.

Primary Examiner:

James Pilkington

Int. Cl.
CPC ...
F16C 13/00 (2006.01); B60B 27/00 (2006.01); F16D 1/072 (2006.01); F16D 1/108 (2006.01); F16C 35/063 (2006.01); F16C 19/18 (2006.01); B21D 53/10 (2006.01); F16D 1/10 (2006.01);
U.S. Cl.
CPC ...
B60B 27/0078 (2013.01); B21D 53/10 (2013.01); B60B 27/0005 (2013.01); B60B 27/0026 (2013.01); B60B 27/0042 (2013.01); B60B 27/0084 (2013.01); B60B 27/0094 (2013.01); F16C 19/184 (2013.01); F16C 19/186 (2013.01); F16C 35/0635 (2013.01); F16D 1/072 (2013.01); F16D 1/108 (2013.01); F16C 2326/02 (2013.01); F16D 2001/103 (2013.01); Y10T 29/49535 (2015.01);
Abstract

A bearing device for a wheel is capable of suppressing radial play and allowing firm and easy connection between a hub and an outer ring of a constant velocity universal joint. Axially extending projections are provided on a shaft portion of a joint outer ring, and the shaft portion is press-fitted into a hole of a hub. Through this press-fitting, recesses held in close fit-engagement with the projections are formed by the projections in an inner diameter surface of the hub, forming a recess/projection fit-engagement structure in which the projections and the recesses are held in close contact with each other over an entire fit-engagement region thereof. A press-fitting margin (Δd) of the projections with respect to the hub and a height (h) of the projections are set to the following range: 0.3<Δd/2 h<0.86.

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