The internal thread grinding datum affects the taper of the thread busbar,the neutrality, the parallelism of the internal thread busbar and the outer diameter of the nut, and the runout of the internal thread busbar and the nut flange datum end face. The internal thread, external circle, and end face compound grinder can control the parallelism of the internal thread and the external circle, and can also control the perpendicularity of the internal thread and the flange surface. When the roundne...
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