Ltem Technical ParameterStep Angle1.8°Step Angle Accuracy±5%full step,no loadResistanceAccuracy±10%InductanceAccuracy±20%Temperature Rise80 Maxrated current,2phase onAmbient Temperatuer-20 +50°CInsulation Resistance100M Ω Min 500VDCDielectric Strength500V AC for one minuteShaft Radial Play0.02 Max(450g load)Shaft Axial Play0.08 Max(450g load)Max.radial force28N(20mm from the flange)Max.axial force10N Model Current/PhaseResistance/PhaseInductance/PhaseHolding Tprque# of LeadsRotor InertiaWeightLengthSingle ShaftDouble ShaftAΩmHkg-cmg-cm2kgmmYSD243-1AYSD243-1B0.954.22.51.66350.2234YSD244-1AYSD244-1B1.23.33.22.66540.2840YSD245-1AYSD245-1B1.23.32.83.176680.3548YSD246-1AYSD246-1B1.2676.561020.560 For more information please visit our Website:http://www.servo-motor.com.cn We can customize according to different requirments.