由于球状轴系有自动定心作用,因此在加工中,装球瓦的壳体前后孔的同心度,主轴与球体配合的外圆同心度等的要求不严格,但是上述的两者配合都不能过盈,装时不能敲打磨瓦和球体,防止变形,以略有间隙的1级精度推配合装入为好。另外要注意球体R_1、球瓦R_2和钢珠φ三者尺寸的配合,以R_1+φ=R_2-(2μ～3μ)比较好。至于钢珠必须 Due to the self-centering effect of the ball shaft system, the requirements of the concentricity of the front and back holes of the ball shingle shell, the concentricity of the outer ring with the ball and the spindle are not strict during the processing, but the above two can not be matched Interference, can not be worn when mounted on the mill tile and the ball, to prevent deformation, with a slight gap of 1 precision push fit into as well. Also pay attention to ball R_1, ball R_2 and ball φ three size with the R_1 + φ = R_2- (2μ ~ 3μ) is better. As for the ball must be