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:
May. 01, 2018
Filed:
Jul. 24, 2015
Nsk Ltd., Tokyo, JP;
Nobuyuki Hagiwara, Kanagawa, JP;
Toshio Nakamura, Kanagawa, JP;
Hiroshi Koyama, Kanagawa, JP;
Isao Shintou, Kanagawa, JP;
Kazuto Kobayashi, Kanagawa, JP;
NSK LTD., Tokyo, JP;
Abstract
Construction is achieved that is capable of preventing the formation of radial streaks in the tip-end surfaces of teeth of hub-side face splines. When a swing center distance is taken to be L, a swing angle that is the inclination angle of the center axis of a rollwith respect to a main hub bodyis taken to be θ, the pitch diameter of the hub-side face splinesis taken to be D, the number of teeth of the hub-side face splinesis taken to be N, and the number of teeth of a processing surfaceof the rollis taken to be N, the position relationship of the main hub bodyand the roll, or in other words, at least one of the swing center distance L, the swing angle θ, and the pitch circle diameter Dis regulated so that the relationship Nh/Nr=cos θ+(2L/D)·sin θ is satisfied.