Abstract: A seal device with sensor (7) is configured by a fixed side seal member (8) fixed to a vehicle body side raceway member (3) and a rotating side seal member (9) fixed to a wheel side raceway member (4). The fixed side seal member (8) includes a core metal (21), a resin member (22) integrated with the core metal (21) through insert molding, a sensor (11) resin molded to the core metal (21), and an elastic seal (65) adhered to the core metal (21). The core metal (21) of the fixed side seal member (8) includes a fitting cylindrical part (61) fitted and fixed to the vehicle body side raceway member (3), a coupling part (62) extending towards the cylindrical part (31) of the rotating side seal member (9) and a moisture entering prevention cylindrical part (65) extending outward in the axial direction in continuation with the coupling part (62), and the outer end part in the axial direction of the fitting cylindrical part (61) is positioned in the resin (22).

Abstract: A seal device with a sensor includes a fixed seal member fixed to a body-side raceway member and a rotated seal member fixed to a body-side raceway member. The rotated seal member comprises a pulsar provided with a support member and a magnetized body. The support member of the pulsar includes a small-diameter cylindrical portion fitted and fixed to a cylindrical portion of the rotated seal member, a large-diameter cylindrical portion having the magnetized body provided therein, and a connecting portion connecting both of the cylindrical portions. The support member of the pulsar is fitted and fixed to the axial inner portion of the cylindrical portion of the rotated seal member such that the connecting portion is set inward in the axial direction.