Compact steering device for the landing gear of an aircraft

A steering device for a landing gear of an aircraft, wherein said device comprises, located alongside a strut of the landing gear, at least one means for turn maneuvering of wheels of the landing gear, comprising at least one actuator and at least one rack, said actuator actuating said rack which, via bevel pinions, turns a rotary annulus which turns an extending leg to which the landing gear wheels are attached, and wherein said at least one actuator and said rack are located alongside the landing gear strut, outside and parallel to an upper tube of said landing gear, said bevel pinions comprising a first conical pinion whose axis is perpendicular to an axis of the landing gear strut and which meshes with a second conical pinion coaxial with said rotary annulus so that movement of the rack parallel to the strut is transferred to the annulus perpendicular to said axis of the landing gear through the bevel pinions having an axis perpendicular to the landing gear.