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:
Nov. 13, 2012
Filed:
Feb. 24, 2009
Yoshitaka Nakagawa, Kashiwara, JP;
Youichi Numada, Toyota, JP;
Hajime Tadumi, Higashiosaka, JP;
Tsuyoshi Okumura, Yamatokoriyama, JP;
Kunihiro Yamaguchi, Nagoya, JP;
Ikuo Ito, Toyota, JP;
Yoshitaka Nakagawa, Kashiwara, JP;
Youichi Numada, Toyota, JP;
Hajime Tadumi, Higashiosaka, JP;
Tsuyoshi Okumura, Yamatokoriyama, JP;
Kunihiro Yamaguchi, Nagoya, JP;
Ikuo Ito, Toyota, JP;
JTEKT Corporation, Osaka-Shi, Osaka, JP;
Abstract
In a sealing device for a bearing, a sub-seal lip is configured such that a slide contact surface is formed like an annular band. As the rotation speed of the bearing increases, the width of the slide contact surface is reduced by a centrifugal force. Thus, sliding friction can effectively be minimized. The torque of the bearing can be prevented from increasing at high-speed rotation. Even when the centrifugal force increases somewhat, only reduction in the width of the slide contact surface is caused. Thus, a slide-contacted state can be maintained. Consequently, the problem of floating-up of the sub-seal lip from a slinger is difficult to occur.