General Specifications Step Angle : 1.8° Step Angle Accuracy : ±5% (full step, no load) Resistance Accuracy : ±10% Inductance Accuracy : ±20% Temperature Rise : 80°C Max.(rated current, 2 phase on) Ambient Temperature : -20°C ~ +50°C Insulation Resistance : 100 M O Min. ,500V DC Dielectric Strength : 500V AC for one minute Shaft Radial Play : 0.02 Max. (450 g-load) Shaft Axial Play : 0.08 Max. (4200 N ( 20 mm from the Flange ) 50 g-load) Max. radial force : 60 N Other Specifications Series Model : T42H47-1684 Motor Length : 47 mm Ph. Current : 1.68 A Ph. Res. (Ohm) : 1.65 Ph. Inductance : 2.8 mH Holding Torque : 4.4 Kg-cm Detent Torque : 200 g-cm Rotor Inertia : 68 g-cm2 Lead Wires : 4