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:
May. 26, 2015
Filed:
Jul. 07, 2009
Takumi Takeuchi, Kanagawa, JP;
Ryosuke Yamada, Kanagawa, JP;
Kinji Yukawa, Kanagawa, JP;
Tomoharu Saito, Kanagawa, JP;
Hiroki Maejima, Kanagawa, JP;
Kimiko Nakai, Kanagawa, JP;
Takumi Takeuchi, Kanagawa, JP;
Ryosuke Yamada, Kanagawa, JP;
Kinji Yukawa, Kanagawa, JP;
Tomoharu Saito, Kanagawa, JP;
Hiroki Maejima, Kanagawa, JP;
Kimiko Nakai, Kanagawa, JP;
NSK LTD., Tokyo, JP;
Abstract
There is provided a resin cage of a tapered roller bearing. The cage includes a small diameter annular portion, a large diameter annular portion, and a plurality of bar portions arranged at intervals in a circumferential direction to connect the annular portions. The bar portion has a pair of circumferentially-directed side surfaces, each having a roller guide surface, and an inner-side inner peripheral surface, a circumferential width of which is smaller on a side of the large diameter annular portion than on a side of the small diameter annular portion, and has a roller retaining region in which a radially outer side pocket width and a radially inner side pocket width between the opposed circumferentially-directed side surfaces of the adjacent bar portions are smaller than a diameter of the roller.