Servo Motor Sizing

Servo motor sizing data for brushless AC permanent-magnet, hybrid stepper-servo, and direct-drive motors across NEMA 17/23/34/42 and IEC 42–180 mm frame sizes. Fields include continuous and peak torque, rated/max speed, rotor inertia, torque constant (Kt), back-EMF constant (Ke), winding resistance, thermal time constant, encoder resolution, weight, shaft diameter, voltage class, and IP rating. Based on Yaskawa Sigma-7, Siemens 1FK7, Beckhoff AM8000, Kollmorgen AKM, Allen-Bradley Kinetix MPL, NEMA MG-1 Part 30, IEC 60034-1.