| 摘要 |
PROBLEM TO BE SOLVED: To provide a bearing device reducing a potential difference caused between a rotor portion and a stator portion during the drive of an underwater rotary machine, and having a permanent and effective function to prevent electrolytic corrosion without increasing a coefficient of friction. SOLUTION: A bearing cover 10b is fitted over the outside of a bearing bracket 6 into which a bearing outer ring 7 is stationarily fitted, and a gap portion 9b formed between the axial end of a rotating shaft 1 around which a bearing inner ring 5 is stationarily fitted and the inner surface of the bearing cover 10b is filled with conductive grease 11 to electrically connect the bearing cover 10b to the rotating shaft 1. |
