| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a roller bearing and rotating shaft cooling structure which can execute good lubrication and cooling under high temperature and high speed rotating conditions by adjusting a supply amount of lubricant which is supplied to the bearing or the rotating shaft corresponding to the rotating speed and the temperature. <P>SOLUTION: The roller bearing 10 is under-race lubricated and an oil amount adjustment mechanism 20, which allows the supply amount of lubricant (to be supplied) to the inside of the roller bearing 10 to be adjusted according to the rotating speed, is provided with an inner race 13. Moreover, either the rotating speed sensitive valve 70 or the temperature sensitive valve 80 is arranged to the oil passage 46, 49, 55, 56, 57 which are prepared in the rotating shaft 41 and the roller bearing 60, and the lubricant of the quantity corresponding to the rotating speed and temperature of the of rotating shaft 41 is supplied. <P>COPYRIGHT: (C)2010,JPO&INPIT |
