| 摘要 |
PROBLEM TO BE SOLVED: To provide structure capable of easily arranging an encoder 6e and a sensor unit 33 while sufficiently securing a load measuring range even in the case of a double row rolling bearing unit wherein rows are arranged at a small space interval, and further, capable of securing excellent measuring accuracy for a long time. SOLUTION: A seal ring 40 is provided between the axial directional inner end of a cover 34 holding the sensor unit 33 and a hub 2b or a rotary member connected to the hub 2b for fixation so as t be rotated together with the hub 2b such as a slinger 28 of a core metal 25 constituting the encoder 6e. A space 41 wherein the encoder 6e and the sensor unit 33 are provided is blocked from an external space. As a result, the adhesion of a foreign material such as magnetic powder to the encoder 6e and the sensor unit 33 can be prevented, to solve the problem. COPYRIGHT: (C)2008,JPO&INPIT |
