| 摘要 |
PURPOSE: To achieve excellent lubrication of a bearing by causing a stream along the axial direction of a lubricating oil toward the bearing positively. CONSTITUTION: A rotary shaft 4 is supported on a bearing 6 which is fitted in an inner face of a bearing case 3, and a lubricating oil O is poured and supplied into one end in the axial direction of the bearing 6 to form a lubricating structure of the bearing 6. A cylindrical section 10 of which central axis almost coincides with the bearing 6 is formed at one end in the axial direction of the bearing 6 in the bearing case 3. A guide wall face section 24 which protrudes toward the central part, is continuous circumferentially, and whose a part is inclined circumferentially in the direction in which it approaches the bearing 6 is formed on an inner face of the cylindrical section 10. |
