| 摘要 |
<P>PROBLEM TO BE SOLVED: To determine accurately not only a rotation speed of cages 21a, 21b supporting and fixing each revolution speed detection encoder 26a, 26b but also a load applied between an outer ring 1 and a hub 2. <P>SOLUTION: The whirling direction of each cage 21a, 21b is regulated univocally, and the installation position of each revolution speed detection encoder 26a, 26b relative to each cage 21a, 21b is shifted or each cage 21a, 21b is made guide by a bearing ring. Displacement between the rotation center and the geometric center of each revolution speed detection encoder 26a, 26b is suppressed by this constitution, and accuracy of rotation speed detection of each cage 21a, 21b by each revolution speed detection encoder 26a, 26b is heightened, to thereby solve the problem. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
