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:
Sep. 03, 2002
Filed:
Sep. 11, 2000
Applicant:
Inventors:
Tomonobu Yoshikawa, Kanagawa, JP;
Yasuo Murakami, Kanagawa, JP;
Assignee:
NSK Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 1/538 ; F16C 3/300 ;
U.S. Cl.
CPC ...
F16H 1/538 ; F16C 3/300 ;
Abstract
The present toroidal-type continuously variable transmission comprises input and output disks coaxially disposed so as to be opposed to each other, and a pair of power roller bearings, each power roller bearing including an inner race, an outer race, and power rollers disposed so as to roll on the toroidal surfaces of the input and output disks. At least one of the input and output disks and power rollers are made of medium-carbon steel containing carbon in an amount ranging from 0.3 wt %-0.5 wt %, to thereby have a very long life.