在 JB 179—83渐开线圆柱齿轮精度和新颁布GB 10095—88渐开线圆柱齿轮精度两个标准中都使用了轴向齿距偏差 F_(px)和齿向误差 F_β这两个公差项目,同属于第Ⅲ公差组。从使用方法上,齿向误差 F_β可以单独作为一个检验组,而轴向齿距偏差 F_(px)须与接触线误差 F_b 组合作为一个检验组(仅用于轴向重合度ε_β大于1.25,齿向线不作修 In the JB 179-83 involute cylindrical gear accuracy and the newly promulgated GB 10095-88 involute cylindrical gear accuracy are used both the axial pitch error F_ (px) and tooth error F_β these two tolerance items , Belong to the third tolerance group. From the method of application, the tooth orientation error F_β can be taken as a test group alone, and the axial pitch deviation F_ (px) must be combined with the contact line error F_b as a test group (only for the axial overlap εε greater than 1.25, No repair to the line