Parametrisches Pfeil-Kegelrad / Parametric Herringbone Bevel Gear

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Parametric Herringbone Bevel Gear with Spherical Involute Geometry This script creates a herringbone bevel gear with spherical involute teeth geometry. Two gears will mesh if their modules are the same and their helix angles opposite. Herringbone gears run more smoothly than gears with straight teeth. They also do not create axial load like helical gears do. Recommendations for the helix angle depending on the module can be found in DIN 3978. This script adjusts the pressure angle in the transverse section to the helix angle: e.g. with a 30° helix angle, a pressure angle of 20° becomes a pressure angle of 22.80° in the transverse section. Format: kegelrad(modul, zahnzahl, teilkegelwinkel, zahnbreite, bohrung, eingriffswinkel, verschiebungswinkel) Parameters: modul = gear module = 25.4 / diametrical pitch = circular pitch / pi zahnzahl = number of teeth teilkegelwinkel = reference cone (half-)angle zahnbreite = width of teeth from the rim in direction of the reference cone tip bohrung = central bore diameter eingriffswinkel = pressure angle, standard value = 20° according to DIN 867 verschiebungswinkel = helix angle between the teeth and the reference cone envelope line, 0° = straight teeth