Delrin Coupling Chain Chain Number 40 Pitch 1/2 Number of Links 16 Chain Overall Width 1.25 in For Number of Teeth 16 Overall Length 8 in Maximum Horsepower at 500 RPM 4.51 hp Includes (2) 40 Pitch 16 Teeth Sprockets Material Delrin Maximum Operating Temperature 150 Degrees F Minimum Operating Temperature -25 Degrees F Maximum Horsepower at 100 RPM 0.9 hp