SUSPENSION BEARING UNIT AND SUPPORT STRUT EQUIPPED WITH SUCH A UNIT

A suspension bearing unit for a motor vehicle, comprising an upper cup, a lower cup and a bearing interposed between the upper cup and the lower cup in rotation in relation to each other about a principal axis. The suspension bearing unit also comprises at least one seal in a hollow housing provided on one face of a first element from among the lower cup and the upper cup. The hollow housing comprises a plurality of protruding ribs spaced apart circumferentially, the ribs protruding into the base of the seal.