Specifications for Belt Size 770-5M-15 Cross References Numbers: 770-5M,  770-5M-15,  770-5M/15 Number of Teeth 154 *Length of Belt 770mm or ~30-5/16" Peak to Peak Distance Between Two Adjacent Belt Teeth 5mm or ~3/16" Width of Belt 15mm or ~9/16"

*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.