Seiko Epson Corporation

Mitsubishi Denki Kabushiki Kaisha

Shikoku Denryoku Kabushiki Kaisha

Kabushiki Kaisha Shikoku Sogo Kenkyusho

Takenori Tada

Fumihiko Ishikawa

Hiromasa Higasa

Terutsugu Oyama

Motoaki Shibayama

A superconduction bearing is provided in which the load capacity and rigidity of a rotary member are improved, run-out of the rotary member is prevented to support the rotary member in a stable, non-contacting manner, and manufacturing cost is reduced. The superconduction bearing includes a rotary member and a disk formed on the rotary member. The disk has permanent magnets provided thereon. The permanent magnets are magnetized to have opposite poles on top and bottom sides thereof. A permanent magnet section is thus formed by the disk and the permanent magnets. Superconductors are concentrically provided for rotatably supporting the rotary member. The permanent magnet section and the superconductor section are positioned opposite to each other. The width and thickness of the permanent magnets are set to 5 to 10 times the distance between the permanent magnet section and the superconductor section.

Superconduction bearing

Growing community of inventors

Kagawa, Japan

Takenori Tada