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Pulley Calculator
Calculate speed and torque ratios in pulley systems
📖 Pulley System
A pulley system uses wheels and belts to transmit power and change speed/torque ratios. The ratio is determined by the diameters or number of teeth on the pulleys.
📊 Result
💡 Tips & Information
- Speed ratio = Driver Diameter / Driven Diameter
- Driven RPM = Driver RPM × (Driver Diameter / Driven Diameter)
- Torque ratio is inverse of speed ratio
- Larger driven pulley = lower speed, higher torque
- Smaller driven pulley = higher speed, lower torque