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:
Oct. 27, 1998
Filed:
Dec. 23, 1994
Applicant:
Inventors:
Assignee:
NTN Corporation, Osaka, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16D / ;
U.S. Cl.
CPC ...
464111 ; 464168 ;
Abstract
A slide type homokinetic universal joint which assures low slide resistance. A guide block is supported on each trunnion so as to be axially slidable with respect to the trunnion and so as for the trunnion to be pivotable with respect to the guide block. A ball circulation groove including a pair of straight paths is formed in each side of the guide block. Each track groove formed in the outer ring has flat sides. An arcuate ball rolling surface is formed at the outer-diameter side of each flat side of the track groove so as to smoothly connect with the flat side, so that the balls can smoothly circulate in the ball circulation groove.