A wheel hub unit for vehicle wheels

A wheel hub unit (1) for vehicle wheels, the unit (1) having an axis of rotation (A) and being provided with an outer ring (2), a flanged inner ring (3) for supporting a wheel, and a sealing device (8) positioned on the wheel side. The sealing device (8) comprises one or more sealing lips (82) and a flinger (83) which is mounted on a keying surface (31) of the inner ring (3), is positioned in contact with the sealing lips (82) and is positioned next to an axial abutting element (32) which is formed along the keying surface (31) of the flinger (83).