Industrial Timing Belt, Belt Material Neoprene, Belt Series L, Industry Number 187L050, Number of Teeth 50, Pitch 3/8 in, Pitch Length 18 3/4 in, Tooth Location One Side, Top Width 1/2 in, Belt Coating Nylon, Belt Trade Size L, Color Black, Length Type Closed Loop, Maximum Operating Temperature 194 Degrees F, Minimum Operating Temperature -22 Degrees F, Outside Length 18.75 in, Reinforcing Cord Material Fiberglass, Resistance Properties Heat , Oil , Standards ARPM