RIGID AXLE WITH HYDRAULIC SUSPENSION FOR A TRAILER OF A VEHICLE WITH A LOAD-BEARING FRAME CONNECTING TO THE FRAME OF SAID TRAILER

Rigid axle (1) with hydraulic suspension (2) of a trailer of a vehicle, comprising at least one rigid connecting axle (100) of at least one pair of driven wheels, at least one front connecting arm (10) of said rigid axle (100), at least one pair of right (4) and left (5) hydraulic suspension cylinders, and at least one cross bar (12) reacting to the axial transverse loads acting on said rigid axle (100), wherein said at least one arm (10), said at least one pair of hydraulic suspension right (4) and left (5) cylinders and said at least one cross bar (12) are reciprocally fixed to said rigid axle (100) and to a load-bearing frame (3) fixable to the frame of said trailer.