Aktiebolaget Skf

Aktiebolaget Ksf

Roberto Pasino

Francesco Scaramozzino

A guiding and sealing unit for a shock absorber rod including a bushing and a sealing assembly, integrally carried by an end of the bushing, and including a sealing ring made of elastomeric material having at least one annular sealing lip which radially and overhangingly protrudes towards a symmetry axis, and a metallic reinforcing structure, having a flange-shaped portion that abuts the end of the bushing and a sleeve-shaped portion operatively associated to the sealing lip; the sealing ring has a flange-shaped portion which radially extends from a root portion of the at least one annular lip, and an annular projection integrally formed with the flange-shaped portion, which axially and protrudingly extends from the latter, facing the piston and shaped to make, a limit stop element for the piston; the flange-shaped portion of the reinforcing structure is coupled to the flange-shaped portion and extends under the annular projection.

Guiding and sealing unit, in particular for a rod of a mono-tube shock absorber and annular sealing assembly therefore

A sealing assembly for insertion between first and second mechanical elements subjected to offset positioning, including a reinforcement ring and at least one elastomeric sealing element in which the reinforcement ring is at least partially embedded, the sealing element including an annular membrane shaped as a truncated-cone sleeve and free from the reinforcement ring, which membrane obliquely extends to protrude from the reinforcement ring, towards a symmetry axis of the sealing assembly and ends with at least one annular sealing lip intended to slidingly cooperate with the first mechanical element; the membrane has, in radial direction, a relatively thin thickness, thinner than that of the at least one sealing lip, so as to be highly flexible, and a plurality of stiffening ribs formed with the membrane, which extend in the axial direction, parallel to one another, spaced apart from one another to form longitudinally extending radial projections on the membrane.

Annular sealing assembly, in particular for insertion between elements subjected to an offset positioning

A lubricated guide unit is for a motorcycle fork tube that includes an outer tube and an inner tube telescopically slidable within the outer tube. The guide unit includes upper and lower sliding bushings axially spaced apart and disposed within a cavity of the outer tube and guide sliding movement of the inner tube. A first sealing device is mounted at an open end of the outer tube and seals against the outer surface of the inner tube. A second sealing device is mounted in the outer tube and seals against the outer surface of the inner tube. The second sealing device is axially spaced from the first sealing device such that a sealed, lubrication chamber is defined between the two sealing devices and the facing circumferential surfaces of the inner and outer tubes, the two bushings being disposed within the chamber.

Lubricated guide unit for a motorcycle fork tube

A sealing assembly including a sealing ring made of 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 respective root portion adjacent to a first axial end of the sealing ring, and towards a second axial end, opposite the first, of the sealing ring; and an annular reinforcing structure made of material which is elastically deformable but relatively much more rigid than the elastomeric material of the sealing ring and relative lip, and at least partly embedded in the sealing ring; wherein the reinforcing structure extends at least partly in an axial direction, at least partly alongside but on the opposite side to 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.

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

Growing community of inventors

Castellero, Italy

Roberto Pasino