Sizing Pulley Pulley Sizing – Calculations Pulley Sizing – Calculations Contour Motion / Motion Calculators / Pulley Sizing Pulley Driven - Motor SizingThis calculator is used to calculate motor speed/torque for a pulley driven system. (assumes horizontal orientation) Total Mass/Load (lbs)Move Distance (in)Thrust Force (lbf)Gearbox Ratio (N:1)Pulley Diameter (in)Pulley Width (in)Pulley MaterialSteel AluminumPulley Mass (lb)# of PulleysBelt Mass (kg)System Efficiency (%)Coeff of Friction Belt Inertia (kg-m2)Pulley Inertia (kg-m2)Load Inertia (kg-m2)Total Inertia (kg-m2)Accel Time (t)Traverse Time (t)Decel Time (t)Dwell Time (t)Linear Travel / Rev (mm) Motor Move Distance(revs)Peak Move Speed (rpm)Peak Linear Speed (mm/sec)Duty CycleMotor Output Power (Watts)Motor Accel Torque (oz-n)Motor RMS Torque (oz-in)Motor Accel Speed (rpm)Motor RMS Speed (rpm)