Hub-bearing assembly (10) comprising:- a rolling bearing provided with an outer ring (11), at least an innerring (16,17) and at least a row (14, 15) of rolling bodies (15),- a housing (12) containing the rolling bearing and having an almostannularcylindrical shape, the housing at one end forming a radial flange (12),- a closing cap (18), assembled on the housing (12) at the opposite endwithrespect to the end, where the housing forms the flange (12), the cap beingcup shaped and having a bottom wall (31), transversal to the rolling bearingaxis, and a side wall (32), constrained to the bottom wall,wherein on the housing (12) external wall (12"), first assembly means arepresent, said first assembly means (24) being fixed and localized in anangular correspondence with the ribs (23) and cooperating with secondassembly means (33), which are movable and realized on the internal surface(32) of the side wall (32) of the cap (18) for the assembling, in adismantledway, of the cap on the housing.