BEARING LUBRICATING STRUCTURE

摘要

PROBLEM TO BE SOLVED: To provide a bearing lubricating structure by which friction in a bearing part can be effectively reduced. SOLUTION: The bearing lubricating structure is equipped with a rotating shaft 2 and a bearing 3 for supporting the rotating shaft 2. The space between the rotating shaft 2 and the bearing 3 is lubricated with lubricating oil. While a groove 4 formed in a rotational direction of the rotating shaft 2 is formed on a sliding surface of the bearing 3, spherical particulates 5 are added in the lubricating oil. The spherical particulates 5 has crush strength more than a load which acts on the space between the rotating shaft 2 and the bearing 3, and a diameter larger than a depth of the groove 4. The friction on the bearing sliding surface is changed from sliding friction to rolling friction. COPYRIGHT: (C)2005,JPO&NCIPI