渐开线圆柱齿轮精度标准JB179～83(以下简称新齿标),等效采用ISO1328～75平行轴渐开线齿轮精度制。我厂在生产高速精密车床过程中,采用了新齿标。新齿标比旧齿标(JB179～60)各项传动公差都有不同程度的提高,其中f_f;±f_(ρι);F_β;±f_α;f_χ、f_y;更为突出,现粗略比较列于附表。从附表可看出各项公差标准提高的幅度,大致在1～1.5级,中心距公 Involute cylindrical gear precision standards JB179 ~ 83 (hereinafter referred to as the new tooth), the equivalent use of ISO1328 ~ 75 parallel axis involute gear precision system. I plant in the production of high-speed precision lathe process, using a new tooth mark. The new gear ratio than the old gear (JB179 ~ 60) of the various drive tolerances have improved to varying degrees, of which f_f; ± f_ (ρι); F_β; ± f_α; f_x, f_y; more prominent, Schedule. Can be seen from the schedule of the various tolerance standards to improve the magnitude of roughly 1 to 1.5, the center from the public