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. 24, 2014
Filed:
Jun. 26, 2013
Nobuyoshi Yamashita, Kuwana, JP;
Toshiyuki Mizutani, Kuwana, JP;
Tetsuya Kurimura, Kuwana, JP;
Kiyoshi Shimizu, Awara, JP;
Yoshitaka Kabata, Awara, JP;
Masatoshi Tanigawa, Awara, JP;
Eiichi Fujita, Awara, JP;
Koji Yamagata, Awara, JP;
Masato Utiumi, Awara, JP;
Nobuyoshi Yamashita, Kuwana, JP;
Toshiyuki Mizutani, Kuwana, JP;
Tetsuya Kurimura, Kuwana, JP;
Kiyoshi Shimizu, Awara, JP;
Yoshitaka Kabata, Awara, JP;
Masatoshi Tanigawa, Awara, JP;
Eiichi Fujita, Awara, JP;
Koji Yamagata, Awara, JP;
Masato Utiumi, Awara, JP;
NTN Corporation, Osaka-shi, JP;
Abstract
A housing for a fluid lubrication bearing apparatus is produced. The housing has a cylindrical shape whose inner periphery having a fixing face to which an outer circumferential surface of a bearing sleeve is to be fixed. The method includes providing a forging mold having a groove molding portion extending parallel to a direction of a stroke of said mold and a face molding portion having a convex cylindrical shape on an outer periphery of the forging mold for forming the fixing face of the housing. The method further includes forming the housing with the forging mold, while forging circulation grooves and the fixing face simultaneously on the inner periphery of the housing with the groove molding portion and the face molding portion of the forging mold.