Hub bearing assembly for a motor vehicle wheel

Hub bearing assembly (10) for a motor vehicle wheel, the hub bearing assembly (10) having a flanged hub (20) which has a central portion (21) of cylindrical shape radially delimited outwardly by a cylindrical mounting surface (22), and a flange (30) which is fixed to the central portion (21) and has a shoulder (33) having an annular bearing surface (34) connected to the cylindrical mounting surface (22) by a curved fillet (40); a radially inner ring (52) of a bearing unit (50) being mounted on the cylindrical mounting surface (22) axially next to an intermediate element (70) which is mounted on the cylindrical mounting surface (22) in an intermediate position between the annular bearing surface (34) and the radially inner ring (52), and which has, in turn, a further annular bearing surface (72) which is transverse with respect to the axis (A) and to the cylindrical mounting surface (22) and which is placed in direct contact with the radially inner ring (52).