| 摘要 |
PROBLEM TO BE SOLVED: To provide a rolling bearing device capable of detecting an abnormality of a speed and a bearing by one sensor. SOLUTION: The rolling bearing device 1 includes a displacement sensor 5 arranged in a housing 2 and detecting an amount of displacement of a rotary shaft 3, and a sensor processing means 6 processing an output from the displacement sensor 5 and detecting the abnormality of the rolling bearing 4. A sensor opposed part 22 of the rotary shaft 3 includes a circumferential surface 22a eccentric with respect to a circumferential surface 21a having the shaft center of the rolling bearing 4 as its center. COPYRIGHT: (C)2011,JPO&INPIT |
