Take the core part in the design of double cycloidal steel ball reducer - the parametric equation of tooth profile curve of cycloidal groove - as the mainline ; an analysis has been carried out on the main designing parameters of tooth profile curve of this novel reducer and the selection principle of each parameter in the design of this kind of reducer was obtained 摘要以双摆线钢球减速器设计中的核心部分摆线槽齿廓曲线的参数方程为主线，对这一新型减速器齿廊曲线的主要设计参数进行了分析，得出了各参数在这种减速器设计中的选择原则。
