What is another word for normal diametral pitch?
Pronunciation: [nˈɔːmə͡l dˈa͡ɪəmˌɛtɹə͡l pˈɪt͡ʃ] (IPA) 
Normal diametral pitch is a term that refers to the tooth size of gears and is determined by the number of teeth in a gear and its pitch diameter. However, there are various other terms used in the industry that can be used as synonyms for normal diametral pitch. Some of these include pitch, module, circular pitch, transverse pitch, and circular pitch diameter. These terms are used interchangeably when referring to gear sizing and determine the pitch of the gears. The choice of the term depends on the manufacturer and the region, but they all refer to the same concept of gear sizing.
