Rear steering axle having an uncoupled actuator crossbeam mounting

The invention relates to a motor vehicle rear steering axle (10) comprising two longitudinal oscillating trailing arms (12), first ends (14) of which are each pivotably connected relative to a vehicle body shell structure element, intermediate portions (20) of which are connected to each other by a crosspiece (22) and second ends (24) of which each receive a wheel mounting (26) through substantially vertical A axis pivotal movement, the wheel mountings (26) each being connected to first ends (30) of connecting rods (32), the second ends (34) of which are connected to a first end (36) of a pivotable crossbeam (38), a second end (40) of which is driven by an actuator (42). Said rear steering axle is characterized in that the crossbeam (38) and the actuator (42) are supported by a housing (44) that is mounted onto the crosspiece (22) of the axle and mechanically uncoupled from said crosspiece (22).