| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a sensor built-in sealing device provided with a rotation detection mechanism that seals a space portion between an anchoring member and a rotating member even with a quite compact configuration, and enables a rotation detection of the rotating member to be performed with high accuracy and stably.SOLUTION: A sensor built-in sealing device includes: an annular seal member 5 to be attached to an anchoring member 2; an electronic substrate 6 having a magnet sensor 61 mounted and to be assembled to the seal member 5; and a metallic ring 7 having the electronic substrate 6 arranged between axial directions of the seal member and the metallic ring, and integrated with the electronic substrate 6. The seal member 5 is composed of a cylinder part 52 to be fitted into the anchoring member 2, a core bar 51 provided with a plate-like circular ring part 53 provided extendedly in a radial direction by one end part 52a of the cylinder part 52, and an elastic seal lip part 54 tightly anchored to the plate-like circular ring part 53, and in a state where the seal member 5 is attached to the anchoring member 2, the seal lip part 54 is configured to elastically and slidly come into contact with a peripheral surface of a rotating member 3, and so as to face a magnetic encoder 11 having the magnetic sensor 61 fitted into the rotating member 3.</p> |
