Industrial Timing Belt, Belt Material Compounded Rubber, Belt Series Hawk Pd, Industry Number 640-8M-30, Number of Teeth 80, Pitch 8 mm, Pitch Length 640 mm, Tooth Location One Side, Top Width 30 mm, Belt Trade Size HTD, Length Type Closed Loop, Maximum Operating Temperature 212 Degrees F, Minimum Operating Temperature -4 Degrees F, Reinforcing Cord Material Fiberglass, Tooth Shape Curvilinear