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:
“Love brings to light the lofty and hidden characteristics of the lover—what is rare and exceptional in him: to that extent it can easily be deceptive with respect to what is normal in him.”
—Friedrich Nietzsche (1844–1900)