THRUST BEARING AND SUSPENSION FOR VEHICLE

摘要

Suspension thrust bearing device comprising a rolling-contact bearing (1) forming an axial thrust bearing, a lower cup (2) supporting the rolling-contact bearing (1) and forming a means against which a suspension spring can bear, and an upper cup (3) enclosing the rolling- contact bearing, the rolling-contact bearing comprising an upper ring (4) in contact with the upper cup (3), a lower ring (5) in contact with the lower cup (2) and a plurality of rolling elements (6) arranged between the rings, the lower cup (2) having a body (9)formed of a part (10) made of rigid material and of a part (11) made of flexible material defining at least one sealing lip in contact with the upper cup (3), catching means being provided to prevent the lower and upper cups from becoming disconnected axially. The flexible-material part (11) of the said body has a radially projecting annular rib (14) associated with a sealing lip (13), the said rib being capable of collaboration with at least one hook (3c) of the upper cup to prevent the lower and upper cups from becoming axially disconnected.