Specifications for Belt Size 606-3M-20 Cross References Numbers: 606-3M,  606-3M-20,  606-3M/20 Number of Teeth 202 *Length of Belt 606mm or ~23-7/8" Peak to Peak Distance Between Two Adjacent Belt Teeth 3mm or ~1/8" Width of Belt 20mm or ~13/16"

*Length of belt is the overall size of the belt's loop measured as if the belt were cut between two adjacent teeth and laid out on a flat surface.