assembly comprises side beams articulated to the opposing ends of a telescoping axle the side beams are coupled to each other by at least one connecting rod device comprised of at least one broken rod hinged at a breaking point to a lever relay carried by the axle so as to entrain the breaking point in an angular displacement of an arc of a circle in a direction opposite to that of the beams in order to compensate for the width loss of the axle when taking curves application_number US 6405993 A description the axle assembly according to fig1 to 4 is intended to carry a body or part of a body 2 of a railway vehicle or railway car with a lowered floor 3 as shown in fig1 to 4 this axle assembly comprises two side bars 5 5 39 which each extend from an articulation means 6 6 39 securing the said side bars to outer member 4 of a telescopic axle and sliding axle member 28 as illustrated in fig1 on straight tracks 10 the side bars are oriented parallel to the track towards the front and or towards the rear and are arranged symmetrically on each side of a longitudinal vertical plane containing the longitudinal axis x x 39 of the body 2 of the railway car as shown in fig1 to 4 each side bar 5 5 39 comprises a double steering lever articulated to the axle member 4 by articulation.