Normal module is the value of the module in a normal plane of a helical gear or worm.
Read more about this topic: List Of Gear Nomenclature
Famous quotes containing the word normal:
“We have been weakened in our resistance to the professional anti-Communists because we know in our hearts that our so-called democracy has excluded millions of citizens from a normal life and the normal American privileges of health, housing and education.”
—Agnes E. Meyer (1887–1970)