滚轮一履式无心内圆磨削是从无心外圆磨削发展而来的。由于它具有许多优点，近年来已被日益广泛采用。本文对滚轮——履式无心支承的传动原理进行了分析，并从数学角度对滚轮外表面的形状进行了解析。文章最后详细介绍了正确修磨、正确安装滚轮的方法。附图8幅，参考资料5种。 Roller-Centerless cylindrical grinding is developed from the unintentional cylindrical grinding. Due to its many advantages, it has been increasingly adopted in recent years. In this paper, the transmission principle of the wheel-slipperless support was analyzed, and the shape of the outer surface of the roller was analyzed from the mathematical point of view. Finally, the article details the correct grinding, the correct way to install the wheel. Figure 8, reference information 5 species.