| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a rotary bearing and a rotary table device capable of exercising a proper cooling effect. <P>SOLUTION: The rotary bearing 30 is equipped with an outer ring 31 with a rolling face provided on an inner circumference face, an inner ring 32 with a rolling face facing the rolling face provided on an outer circumference face, and a plurality of rolling elements 33 loaded in a rolling passage formed by the rolling face of the outer ring 31 and the rolling face of the inner ring 32. Cooling medium conducting mechanisms 37, 38 for conducting a cooling medium is provided in at least one of the outer ring 31 or the inner ring 32. <P>COPYRIGHT: (C)2010,JPO&INPIT |
