RADIAL SEALING RINGS AND METHOD OF MAKING THESE RINGS

摘要

1. Sealing ring of the radial type comprising a reinforcement, a body (5) made notably of elastomer and a sealing lip (9) made of a material with low frictional properties, notably a fluororesin such as in particular polytetrafluoroethylene, bonded onto the said body and projecting radially from the latter, characterized in that it comprises an annular recess (12) located in the surface of the said lip (9) opposite the said body (5) and in the part of the lip not bonded to the body, in the immediate vicinity of the peripheral edge (7) of the said body.