径向转向架在铁路曲线上运行时使轮对经常位于曲线的半径上 ,车轮与钢轨的冲角几乎为零 ,从而大大地减少轮轨之间的磨耗 ,消除了空载车辆车轮爬上钢轨而脱轨的可能 ;在直线上运行时使轮对经常沿轨道中心运行 ,提高了车辆蛇行运动的临界速度 (即车辆的运行稳定性 ) ,同样减少了 Radial bogies run on the curve of the railway so that the wheelsets are often located on the radius of the curve and the angle of attack between the wheel and the rail is almost zero, greatly reducing the wear between the wheel and the rail and eliminating the need for the wheels of the unloaded vehicle to climb onto the rail And the possibility of derailment; when running on a straight line, the wheelset often runs along the center of the track, increasing the critical speed of the vehicle’s meandering motion (ie, the running stability of the vehicle), and also reducing