Abstract: An assembly comprises a stationary armature to be secured to a stationary support, a moving armature bearing a magnetic disk to be secured to a rotating support, and a seal. The seal covers at least part of an exterior lateral face of a seal support wall of the stationary armature. The seal has at least one dynamic sealing means for rubbing against the rotating support and a ferromagnetic annulus attracted toward the magnetic disk, due to a magnetic field developed by the magnetic disk, to bias the dynamic sealing means against the rotating support. The stationary support and the rotating support may be stationary and rotating rings, respectively, of a bearing, upon which the assembly is mounted.

Abstract: An assembly forming a seal with a built-in multi-pole magnetic encoder, intended to be mounted between a stationary support and a rotating support forming part of a rolling bearing. The assembly comprises a stationary armature secured to the stationary support and a moving armature bearing the encoder and secured to the rotating support. The assembly has no means allowing the association of a sensor past which the encoder moves. The magnetic encoder comprises a low even number of poles allowing the sensor to be distanced from the stationary armature such that magnetic flux of the encoder may be detected by the sensor that can electronically compensate for the reduction in the number of the pairs of poles, with detection being performed through the stationary armature.