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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 10634186 B1

PDFFull Text
Date of Patent:
Apr. 28, 2020

Filed:

Aug. 10, 2017

Ball bearing, spindle device, and machine tool

Applicant:

Nsk Ltd., Tokyo, JP;

Inventors:

Kyohei Matsunaga, Fujisawa, JP;

Yoshiaki Katsuno, Fujisawa, JP;

Assignee:

NSK LTD., Tokyo, JP;

Attorney:

Sughrue Mion, PLLC

Primary Examiner:

Phillip A Johnson

Int. Cl.
CPC ...
F16C 33/66 (2006.01); F16C 19/18 (2006.01); F16C 33/78 (2006.01); F16C 19/28 (2006.01); F16C 19/16 (2006.01); F16C 33/58 (2006.01);
U.S. Cl.
CPC ...
F16C 19/181 (2013.01); F16C 19/28 (2013.01); F16C 33/6637 (2013.01); F16C 33/6662 (2013.01); F16C 33/78 (2013.01); F16C 19/163 (2013.01); F16C 33/586 (2013.01); F16C 2322/39 (2013.01);
Abstract

In an angular contact ball bearing (), an outer ring () has at least one radial hole () passing through in the radial direction from the outer peripheral surface to the inner peripheral surface of the outer ring (), and the axial-direction position of an inner-diameter-side opening part of the radial hole () is located between the groove bottom of the outer ring () and the point of contact between a ball () and the outer ring (), as well as being separated from a contact ellipse between the ball () and an outer ring track groove ().

Find Patent Forward Citations

Matsunaga, Kyohei. (2020). Ball bearing, spindle device, and machine tool (U.S. Patent No. 10634186). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10634186

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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