Specifications for Belt Size 920-8M-20 Cross References Numbers: 920-8M,  920-8M-20,  920-8M/20 Number of Teeth 115 *Length of Belt 920mm or ~36-1/4" Peak to Peak Distance Between Two Adjacent Belt Teeth 8mm or ~5/16" 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.