滚子(圆柱滚子、圆锥滚子、球面滚子、滚针)轴承的凸度问题,多年来,已被国内外轴承设计和生产部门所注意;因为滚子轴承带凸度,不仅只是促成轴承设计中的合理性,而更重要的是使轴承的使用寿命、可靠性等方面得到显著地提高.然而,关于凸度问题,目前还没有系统的理论和严谨的计算公式,在凸出量的选取上也没有统一的标准.本文旨在定性地说明凸度的若干基本概念,同时介绍两个关于凸度计算的近似公式,供有关单位在轴承设计中确定凸度值时参考,同时希望在实践中加以验证. Roller (cylindrical roller, tapered roller, spherical roller, needle roller) bearing the problem of crown, over the years, domestic and foreign bearing design and production departments have been noted; because the roller bearing convex, not only contributed to Bearing design in the reasonable, but more importantly, the bearing life, reliability, etc. has been significantly improved.However, there is no systematic theory and rigorous calculation formula about the convexity problem, There is no uniform standard.This paper aims to qualitatively explain some basic concepts of convexity, and introduce two approximate formulas about the convexity calculation, for the relevant units in the bearing design to determine the convexity value of the reference, at the same time hope In practice to be verified.