Model Number: 020802 Brand Name: Heng Da Key Specifications/Special Features: For sale is belt material used for linear drives.The roll is164 feet and you can purchase a full roll or any number of feet that you need ($5.90 per foot).White polyurethane timing belt with high strengthsteel cords.The belt is8M pitch(distance between on tooth and another is 8mm). Beltwidth is 50mmThis belt should be used with 8M or HTD8 pulleys. All dimensions are in mm (milimeters) see picture.P (pitch)= 8mm H (thickness)=5.6mm Ht (tooth Height)=3.6mmThese belt have high tensile strength and are used for linear drives that require high repeatability and positional accuracy.Urethane synchronous belts are oil resistant and does not flake or get effected by UV rays.