The size of the driven gear is measured in the teeth around the circumference of this sprocket.

Canines: the cornerstone of the mouth, the fangs or the cuspid (upper and lower). Incisors, Lateral: the next teeth on either side of the central incisors (upper and lower). Incisors, Central: the two front teeth, the cutting teeth (upper and lower). Molars: the back teeth, the chewing teeth (upper and lower). Premolar: the middle teeth or the bicuspid (upper and lower). 


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