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:
Sep. 21, 1999
Filed:
Feb. 28, 1997
Akio Aoki, Kanagawa, JP;
Yukio Sato, Kanagawa, JP;
Shin Niizeki, Kanagawa, JP;
Takao Hashimoto, Osaka, JP;
Katsuhiro Nojima, Osaka, JP;
Toshihiro Mori, Osaka, JP;
Koji Ando, Ibaraki, JP;
Atsuhisa Yakawa, Osaka, JP;
NSK Ltd., Tokyo, JP;
Sumitomo Metal Industries, Ltd., Osaka, JP;
Abstract
In a roller support device, an inner peripheral surface of a bearing box is covered with a material having a poor wettability with respect to a molten metal, such as tantalum, graphite, C/C composite, silicon carbide or the like. The molten metal does not adhere to the covered portion, or even if the molten metal adheres to and is solidified on the covered portion, the molten metal can be peeled off with a light force. Therefore, after a support roller is pulled up from the molten metal, the molten metal does not prevent a rolling bearing from shifting in the axial direction thereof so that the roller support device can prevent an excessive force from being applied to the rolling bearing when the support roller, after it is thermally expanded once, is contracted as the temperature falls.