本文根据确定筐形保持架计算直径的现行公式,应用数学分析方法使计算过程大大简化;并从计算直径的改变与保持架窗孔和滚子接触间隙之间的数量关系出发,探讨了保持架最佳径向游动量所需要的接触间隙量。本文是对现行方法的改善。附图2幅，表6个。 In this paper, according to the current formula to determine the diameter of cage-shaped cage calculation, the calculation process is simplified by using mathematical analysis method; and from the relationship between the change of diameter and the contact clearance of cage window and roller, The amount of contact clearance required for optimal radial wander. This article is an improvement of the current method. Figure 2, Table 6.