AXIAL THRUST BEARING DEVICE WITH A MOBILE SEALING RING

摘要

The axial thrust bearing device, in particular for the suspension strut of a motor vehicle, comprises a bottom support cover 18, a top bearing cover 16, a rolling bearing 20 axially disposed between said covers, and at least a sealing ring 22 freely movable in axial direction relative to the bottom support cover and to the support bearing cover. Said sealing ring is adapted to reduce any ingress of foreign matter between said covers. The sealing ring comprises at least one friction lip 22b, 22c bearing against the bottom support cover 18 and delimits with the top bearing cover 16 at least a labyrinth sealing zone.