The analytic solution equation can provide a useful geometrical model and a new calculation way to design and manufacture the unfolding roller (or carrier roll)or the superfinishing machine roll.

• 为轴承圆锥滚子表面裂纹自动检验仪展开机构的设计和圆锥滚子超精加工机床展开导轮机构的设计与修磨提供了几何模型和新的计算方法。