| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a compact-sized rolling bearing device, adjusting the expansion and contraction of a rotating shaft, and restraining whirling of the rotating shaft. <P>SOLUTION: This rolling bearing device includes: axial grooves 8, which are disposed at predetermined spaces in the circumferential direction on the inner peripheral surface 7 of a housing 1; and a plurality of balls 3, which are disposed at predetermined spaces in the circumferential direction on the outer peripheral surface of an outer ring 11 of an angular ball bearing 2 rotatably supporting a spindle 15 of a machine tool in a space up to an axial groove 25 extending in the axial direction. <P>COPYRIGHT: (C)2009,JPO&INPIT |
