Specifications for Belt Size 535-5M-18 Cross References Numbers: 535-5M,  535-5M-18,  535-5M/18 Number of Teeth 107 *Length of Belt 535mm or ~21-1/16" Peak to Peak Distance Between Two Adjacent Belt Teeth 5mm or ~3/16" Width of Belt 18mm or ~3/4"

*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.