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:
Aug. 27, 2019
Filed:
Jul. 04, 2016
Nsk Ltd., Tokyo, JP;
Nobuyuki Hagiwara, Fujisawa, JP;
Kazuto Kobayashi, Fujisawa, JP;
Isao Shintou, Fujisawa, JP;
Hiroshi Koyama, Fujisawa, JP;
Toshio Nakamura, Fujisawa, JP;
NSK LTD., Tokyo, JP;
Abstract
A method for manufacturing a rolling bearing unit is provided to periodically reciprocate a stage () in a vertical direction by rotating and driving a servo motor () while rotating a roll about a central axis of a hub main body using a roll driving motor () in a state in which a processing surface of the roll is pressed against other end surface of a caulking section in an axial direction. A period of the reciprocation is restricted by a relation between a rotation position of the roll about the central axis of the hub main body and an engaged state between concave sections, which are sections between a plurality of processed teeth formed in the processing surface of the roll, and a face spline tooth formed by the concave section.