文章根据部标准的有关规定对设计与制造回转支承提出了五条基本要求;对滚球式与滚柱式回转式承均从承载能力和静容量两方面作了选型分析;给出了回转摩擦阻力矩的计算公式;连接螺栓选型时,需进行最大和最小预紧力、连接刚度、连接面摩擦力和比压的计算。 The article put forward five basic requirements for the design and manufacturing of slewing bearing according to the relevant regulations of ministerial standards. The slewing ball slewing bearing and rolling slewing slewing bearing were selected from the aspects of carrying capacity and static capacity. The slewing friction Calculation formula of the resistance moment; when selecting the connecting bolt, the calculation of the maximum and minimum pretightening force, the connection stiffness, the friction force and the specific pressure of the connecting surface shall be carried out.