Theuddeveloped udgeneraludmathematicalud-udkinematicudaludmodeludfor examination of mating of udcylindricaludand conicaludheludiudcoidsudand their tools ud-udfurthermore udtheudhelicoids udsurfaces udare on identical udaxisud-ud, whiudch is suitable to deal with examination at the same time.udThudis paperudshowudsudthe newestudmathematicalud-udkinematical udmodel udto analyudzuding the mating of cylindrical worm gear udwith bevel gearud.
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