对用于高速传动的中空滚子行星牵引增速机构进行了设计研究和实验测试，对该机构输出轴的径向刚度和回转精度进行了分析，并提出通过测量传动机构的传动比变化率监测机构运行。分析和试验表明，行星牵引增速机构完全能够胜任高速、超高速传动 The design and experimental tests of the planetary roller traction mechanism for high speed transmission are carried out. The radial rigidity and slewing accuracy of the output shaft of the mechanism are analyzed. The method of measuring the change rate of the transmission ratio of the transmission mechanism Institutional operation. Analysis and tests show that the planetary traction gear fully capable of high-speed, ultra-high speed transmission