What is another word for normal contact ratio?
Pronunciation: [nˈɔːmə͡l kˈɒntakt ɹˈe͡ɪʃɪˌə͡ʊ] (IPA) 
Normal contact ratio, also known as contact ratio, is a term used in mechanical engineering to describe the amount of contact between two gear teeth during their meshing. There are several synonyms for the term that can be used interchangeably, such as pitch line velocity ratio, average contact ratio, gear tooth contact ratio, and tooth overlap ratio. These terms all describe the ratio between the lengths of the lines of contact between gears and the pitch circle diameter of the gears involved. Understanding these synonyms and their definitions can help mechanical engineers design and optimize gear systems for maximum efficiency and durability.
