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:
“You have promise, Mlle. Dubois, but you must choose between an operatic career and what is usually called “a normal life.” Though why it is so called is beyond me.”
—Eric Taylor, Leroux, and Arthur Lubin. M. Villeneuve (Frank Puglia)