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:
Jun. 17, 2008
Filed:
Jul. 20, 2006
Applicants:
Yoshitaka Waseda, Nisshin, JP;
Shinya Ochi, Hamura, JP;
Inventors:
Yoshitaka Waseda, Nisshin, JP;
Shinya Ochi, Hamura, JP;
Assignee:
Jtekt Corporation, Osaka-shi, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01L 1/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
A cam follower includes a roller on which a cam rolls. A material ratio Rmr (C) (C: a section level %) of an radially outer surface of the roller is set to relations of 0%<Rmr (10%)≦10%, a Kurtosis Rku of a roughness profile of the outer surface is set to 4≦Rku≦10, an arithmetic mean roughness Ra of the outer surface is set to 0<Ra≦0.15, and a compression stress S of the outer surface is set to 800 MPa≦S≦1,100 MPa.