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美国GE公司EMD分部对一种新型径向定位转向架(radial steering truck)进行了成功的试验。该转向架用于六轴、高牵引力、高粘着系数货运机车。据EMD称,这种转向架可利用轮轨作用面间产生的蠕滑力,在一套连接控制装置的配合下,可为动轴提供自由度,使之在转向架构架中自动取向。这样一来,就可以减少滚动阻力,而最重要的是,它可以减轻轮轨磨损。此外,这种转向架在高牵引力下轴重转移值很低、乘坐舒适性好,在不规则轨道上有较好的轴重平衡能力。而且,这种转向架维修量小,可延长大修
The GE Division of the United States EMD Division successfully tested a new radial steering truck. The bogie for six-axis, high traction, high adhesion coefficient freight locomotive. According to EMD, the bogie utilizes the creep forces created between the wheel and rail surfaces and, with the cooperation of a set of connection controls, provides freedom for the moving shaft to be automatically oriented in the bogie frame. As a result, rolling resistance can be reduced, and most importantly, it can reduce wheel and rail wear. In addition, the bogies have low axle load transfer values at high traction, good ride comfort and good axle load balance on irregular orbits. Moreover, this kind of bogie has a small amount of maintenance, which can prolong overhaul