| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a structure capable of generating stably vibrations including a frequency component to be detected, while a plurality of rolling elements 3, 3 constituting a rolling element row are moved revolutionarily, even when an axial load Fy working on a rolling bearing unit is zero or sufficiently small. <P>SOLUTION: Each rolling element 3, 3 is arranged at unequal intervals in the circumferential direction. The problem is solved by adopting this constitution. <P>COPYRIGHT: (C)2007,JPO&INPIT |
