Nsk Corporation

Sumitomo Metal Industries, Inc.

Hitachi-ge Nuclear Energy, Ltd.

Koji Ando

Toshihiro Mori

Yukio Sato

Takao Hashimoto

Kazuaki Kito

Akio Aoki

Atsuhisa Yakawa

Katsuhiro Nojima

Shin Niizeki

Masayoshi Matsuura

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.

Roller support device in molten metal plating bath

Growing community of inventors

Ibaraki, Japan

Koji Ando