Nema 23 stepper motor 270 oz.in,3A, 4Leads ,bioplar Model 23HS7430 Step angel (°) 1.8 Motor Length L(mm) 78 Rate Voltage (V) 3 Rate Current (A) 3 Phase Resistance (Ω) 1.0 Phase Inductance (mH) 3.5 Holding Torque (oz.in) 270 Lead Wire (NO.) 4 Rotor Inertia (g.cm2) 480 Detent Torque (kg.cm) 0.69 Motor Weight (kg) 1