Nema 52 three phase stepper motor Technique Parameters ItemsSpecifictionStep Angel1.2 degreeStep Angel Accuracy±5%Resistance Accuracy±10%Inductance Accuracy±20%Temperature Rise80°C MaxAmbient Temperature-20°C~+50°CInsulation Resistance100MΩ Min., 500VDCDielectric Strength500VAC for one minuteShaft Radial Play0.02Max (450g-load)Shaft Axial Play0.08Max (450g-load) All above is used normally ,Website:http://www.wotomotors.com, and we can customize according to your requirements .Drawing :Stepper motor lead wires :Torque frenquency characterstic :