Suspension thrust bearing device and strut equiped with such a device

摘要

The present invention relates to a suspension bearing device, comprising a rolling bearing forming an axial stop along a main axis and at least one seal adapted for protecting the rolling bearing from ingress of water or of polluting particles. The device is characterized in that it also comprises a bottom cup and a top cup made of plastic, in contact with the rolling bearing, the bottom cup forming a bearing means for a suspension spring, and in that the or each seal is made of thermoplastic overmolded onto a first element between the cups and comprises a base of substantially annular shape from which extends at least one sealing lip in contact with the second element between the cups. The invention also relates to a strut of a motor vehicle, comprising a damper and a suspension bearing device as mentioned above.

主权项

1. A suspension bearing device comprising:
at least one rolling bearing forming an axial stop along a main axis; at least one seal adapted for protecting the rolling bearing from ingress of water or of polluting particles; and a bottom cup and a top cup made of plastic, in contact with each rolling bearing, the bottom cup forming a bearing means for a suspension spring, wherein the at least one seal is made of thermoplastic overmolded onto a first element made of plastic between the bottom cup and the top cup and includes a base of substantially annular shape from which extends at least one sealing lip in contact with the second element made of plastic between the bottom cup and the top cup, and wherein the second element includes an internal face having a shoulder configured to limit movement of at least one sealing lip, wherein a radial surface of the base of the at least one seal is received on top of a radial surface of the first element.