{"data":{"fields":"term_definition","term_definition":"<div class=\"definition\">The ratio of the number of teeth to the inches in the pitch diameter. There is a fixed relation between diametral pitch (DP) and circular pitch (CP), namely CP=\u03c0DP. On bevel and hypoid gears, it is understood to be the transverse diamettral pitch. See drawing on next page. A gear with 12 Teeth and a 1\u201d pitch diameter is 12 Pitch.<\/div>"}}