A pinion shaft, the rack shaft, and a rack guide holder are assembled in a housing, and an adjust screw is strongly tightened to press the rack guide holder toward the rack shaft under an overload.

• 齿轮轴、齿条轴和齿条导向支架安装于壳体内，并且调节螺杆在载荷作用下非常紧地将齿条导向支架压向齿条。