Sumitomo Metal Industries, Inc.

Shimano Inc.

Mitsuyo Maeda

Hiroyoshi Yashiki

Ichiro Tanaka

Noriyuki Honjou

Taisei Nakayama

Shinsuke Mita

Yasuhiro Hitomi

A rotation support structure for a dual-bearing reel includes a reel unit, a spool shaft, and fluid bearings. The spool shaft is disposed on an inner circumferential side of the reel unit and can rotate relative to the reel unit. The fluid bearings have a plurality of grooves for forming a fluid lubricant film between the reel unit and the spool shaft. The rotation support structure is provided for a high-speed rotation operation of a dual-bearing reel, with which a reduction of the rotation performance during high-speed rotation can be successfully suppressed.

Rotation support structure for dual-bearing reel

The non-oriented electrical steel sheet having the following chemical composition: C: 0.01% or less, Si: 2.5% or less, Mn: 2% or less, Al: 1 to 5%, Si&plus;Al&plus;0.5&times;Mn: 2.5 to 5%, with a sheet thickness of 0.1 to 0.4 mm, an average grain diameter of 50 to 180 &mgr;m and a Vickers hardness of 130 to 210. The steel sheet is excellent in workability such as punchability and interlocking performance for forming it into cores for motors and also has a lower iron loss and higher magnetic flux density, and thus when used as a core in a motor, achieves the high a motor efficiency. The steel sheet is particularly suitable as a material for cores in inverter-controlled motors.

Non-oriented electrical steel sheet and method for producing the same

The non-oriented electrical steel sheet having the following chemical composition : C: 0.01% or less, Si: 2.5% or less, Mn: 2% or less, Al: 1 to 5%, Si&plus;Al&plus;0.5&times;Mn: 2.5 to 5%, with a sheet thickness of 0.1 to 0.4 mm, an average grain diameter of 50 to 180 &mgr;m and a Vickers hardness of 130 to 210. The steel sheet is excellent in workability such as punchability and interlocking performance for forming it into cores for motors and also has a lower iron loss and higher magnetic flux density, and thus when used as a core in a motor, achieves the high a motor efficiency. The steel sheet is particularly suitable as a material for cores in inverter-controlled motors.

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Sakai, Japan

Mitsuyo Maeda