General Specifications: Step Angle Accuracy: ±5%(full step,no load) Temperature Rise: 80°CMax Ambient Temperature: -10°C +50°C Insulation Resistance:100MΩmin.500VDC Dielectric Strength: 500VAC for one minute Shaft Radial Play: 0.06 Max.(450g-load) Shaft Axial Play: 0.08 max.(450g-load) Electrical Specifications: Model Number: 35HS01 Step Angle Degree(o): 1.8 Motor Length L inch (mm): 1.02(26) Holding Torque Oz-in (Nm): 9.91(0.07) Number of Leads: 4 Phase Current (Amps): 0.4 Phase Resistance (Ohm): 35±10% Phase Inductance (mH): 16±20% Rotor Inertia Oz-in-sec2 (g.cm2): 0.0001704(12) Detent Torque Oz-in (g.cm): 1.42(102) Weight Oz (kg): 5.29(0.15) See its datasheet for more information, and you can download the datasheet from the website of Leadshine.