Sealing device for a hub-wheel assembly

Sealing device ( 1, 11 ) for a hub-wheel assembly (2) provided with a rolling bearing (3), the sealing device being provided with a screen (6, 16), which is assembled on an outer ring (4) of the bearing (3) and has an annular cylindrical wall (61, 161), having an internal lateral surface (62, 162) which is press fit along an external lateral surface (42) of a collar (41) of the outer ring (4), the internal internal surface (62, 162) showing a respective inner diameter (Di) and the external lateral surface (42) showing a respective outer diameter (De); and a static sealing element (7, 17), constrained to said screen (6, 16); the ratio of the interference between inner diameter (Di) and outer diameter (De) over a screen thickness ranging between 0.22 and 0.5; a coupling length (L, L') between the internal lateral surface (62, 162) and the external lateral surface (42) equal or greater than 5 mm; and a ratio between outer diameter (De) of the external lateral surface (42) and coupling length (L, L') ranging between 1 and 1.19.