Annular sealing assembly for insertion between two mechanical members in relative motion, in particular a linear reciprocating motion, as a rod and the relative guiding seat of a mono-tube shock-absorber

A sealing assembly insertable between a first member and a second member, which are movable relative to one another in use, said sealing assembly comprising:

• a sealing ring made of an elastomeric material and having, integrally in one piece, at least one elastically deformable, annular sealing lip, at least part of which projects axially from and radially inwards of the sealing ring, from a root portion immediately adjacent to a first axial end of the sealing ring, and towards a second axial end, opposite the first axial end, of the sealing ring;
• and
• an annular reinforcing structure made of a material which is at least partly elastically deformable but more rigid than the elastomeric material of the sealing ring and the sealing lip, said reinforcing structure being at least partly embedded in the sealing ring;
• wherein the reinforcing structure extends at least partly in an axial direction, at least partly alongside the sealing lip;
• the sealing lip being designed to define, when undeformed, a predetermined radial clearance between itself and a radially inner lateral wall of the sealing ring;
• said reinforcing structure comprises a sleeve portion extending axially from said second axial end of the sealing ring towards the first axial end and terminating near said root portion of the sealing lip such that the root portion and said first axial end of the sealing ring have no reinforcing structure;
• and
• wherein said reinforcing structure has a substantially L-shaped radial section, and also comprises a flange portion, which extends radially, on the opposite side to said radially inner lateral wall of the sealing ring, from a first end of the sleeve portion flush with said second axial end of the sealing ring.