| 摘要 |
PURPOSE: A contra-rotating bearing device for a double contra-rotating propeller with super-hydrophobicity coating is provided to reduce surface friction by forming a coating layer in a lubrication surface in which an oil film is formed. CONSTITUTION: A contra-rotating bearing device for a double contra-rotating propeller with super-hydrophobicity coating comprises coating layers(40) with super-hydrophobicity coating surfaces. The coating layers are formed on the surface of a bearing, a lubricating oil supplying passage, and a lubricating oil supplying hole. The bearing is installed in the outer surface of an inner rotary shaft, the inner surface of an outer rotary shaft, or inside the outer rotary shaft. |
