Formation of an approximate internal toothing for cylindrical-conic gears

There is a technological problem for cylindrical - conic toothing to get an exact cog form during gear flanks formation. That's because it's necessary to produce a shaping cutter formed just the same as a cog wheel of this toothing for each gear. In this research new principle of an approximate cog forming for cylindrical - conic toothing by productive rack is investigated. This research is sharp enough for practical use and producing toothing close enough to theoretical one.