The mini stepping motor Step Angle :1.8 DegreeStep Angle Accuracy:±5% (full step, no load)Resistance Accuracy:±10%Inductance Accuracy:±20%Temperature Rise:80DegreeC Max. (rated current,2 phase on)Ambient Temperature:-20 +50DegreeCInsulation Resistance:100M(Ohms) Min. ,500VDCDielectric Strength:500VDC for one minuteShaft Radial Play:0.02Max. (450 g-load)Shaft Axial Play:0.08Max. (450 g-load)Max. radial force:75N (20mm from the flange)Max. axial force:15NHolding Torque:3.9 18.9 Kg.cm