The standard value of the bevel gear modulus in the national standard refers to the average modulus mm or the large breaking modulus M
Bevel gear standard modular series table (from GB / T123681990) (unit: mm)
That is the big modulus press table selection, the pressure angle is 20 degrees, the addendum coefficient ha * 1, c * 0.2 coefficient of top clearance
In order to facilitate the calculation and measurement of parameters, is usually taken as the standard value of big bevel gear
