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. 12, 2018
Filed:
Apr. 27, 2017
Nsk Ltd., Tokyo, JP;
Makoto Koganei, Fujisawa, JP;
Hiroshi Sakamoto, Fujisawa, JP;
Daisuke Tominaga, Fujisawa, JP;
Shunichi Kiyono, Fujisawa, JP;
Mamoru Aoki, Fujisawa, JP;
Tatsuya Minamiyama, Osaka, JP;
Masayoshi Nakamura, Osaka, JP;
Kiyoshi Yamamoto, Osaka, JP;
NSK LTD., Tokyo, JP;
Abstract
Provided is a resin cage for a tapered roller bearing in which a mold parting line which is extended in an axial direction is formed in a pillar portion defining a pocket. On facing surfaces of adjacent pillar portions, on an outer diameter side from the mold parting line, a first conical surface which slides in contact with an outer peripheral surface of a tapered roller is formed, and a first flat surface in a radial direction is formed in a portion on the outer diameter side from the first conical surface. On an inner diameter side from the mold parting line, a second conical surface which slides in contact with the outer peripheral surface of the tapered roller is formed, and a second flat surface in a radial direction is formed in a portion on the inner diameter side from the second conical surface.