FIELD: mechanical engineering. SUBSTANCE: gear cutter is made up as an evolvent gear wheel with teeth 1 shaped on the base of the nominal initial gear wheel. The tops of teeth 1 are conical and side surfaces of the teeth are screwed, the left and right base screw lines being inclined at angles defined by relationships presented in the invention description. Two hollows 2 so formed are parallel to the axis of the gear cutter. The height of the tooth of an extremely worn out gear cutter should be equal to the height of the nominal initial gear wheel being increased by the value of a technological radial gap. EFFECT: improved design. 3 dwg
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