Class of service: Class I (1.0 Service factor) Class II (1.4 Service factor) Class III (2.0 Service factor)
What output speed is closest AND OVER what you need: 50 RPM (35:1) 70 RPM (25:1) 117 RPM (15:1) 195 RPM (10:1) 340 RPM (5:1)
What is your motor Horsepower @1750: 1/2 1 1-1/2 2 3 5 7.5 10 15 20
Belt drive ratio: :1
