What parameters are the standard values of straight bevel gears, and the parameters of worm gears are standard values?
Bevel gear is the back cone (end) note on the parameters of the standard value, and the back cone is "inclined" on the map, addendum and dedendum, along the back cone "sideways" draw height. The diameter of the graduated circle is drawn along the radial direction, intersecting the back cone, and dividing the cone (line) through the intersection point.
Straight bevel gear with the large end of the back cone parameters for the standard value; the worm drive to end the parameters for the standard value.
Helical gears are the standard values of the surface parameters. Because the gear cutter parameters are standardized, both straight and helical gears can be machined, while helical gears are machined along normal direction.
