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:
Nov. 28, 2017
Filed:
Jan. 10, 2016
Nsk Ltd., Shinagawa-ku, Tokyo, JP;
Tomoya Ichikawa, Fujisawa, JP;
Minoru Tahara, Fujisawa, JP;
NSK Ltd., Tokyo, JP;
Abstract
Construction is achieved by which it is possible definitely prevent the occurrence of creep between a pulleyand an outer ring Trapezoidal shaped concave sections are formed such that the angle of intersection θ between the inside surfaceson both sides of each concave sectionof knurlingof the outer ringis within the range 45°≦θ≦120°. Moreover, the depth h in the radial direction of the concave sectionsand the diameter D of the circumscribed circle of the tip end surfacesof the convex sectionsare regulated so as to satisfy the relationship 0.004D≦h≦0.015D, and the length L in the circumferential direction of the bottom surfaceof the concave sectionsis regulated within the range 0.01D≦L≦0.03D.