Ｌｕｎｄｂｅｒｇ于１９３９年找到了理想的对数凸型，对圆柱线接触副母线进行修形，以解决接触副端部的表面应力突升现象，当接触副两曲率半径相差悬殊时，这种母线修形能在接触线方向取得相当好的表面应力均布性。但当两曲率半径较接近时，虽然Ｌｕｎｄｂｅｒｇ对数凸型仍能取得较好效果，但它却不是最佳的。为此，本文提出了考虑内外圈半径影响的圆柱滚子轴承凸度设计方法。 Lundberg found the ideal logarithmic convexity in 1939, and repaired the cylindrical line contact sub-bus to solve the surface stress sudden rise at the contact sub-end. When the contact radius radii differed sharply, Form in the direction of the contact line to obtain a fairly good uniform surface stress. However, when the two radii of curvature are close to each other, although Lundberg logarithmic convex can still achieve better results, it is not the best. To this end, this paper presents a cylindrical roller bearing crown design that takes into account the radius of the inner and outer rings.