This Oriental Motor Vexta PK268-E2.0A 2-Phase Stepper Motor is in great condition and is guaranteed to be fully functional. Please feel free to contact us with any questions. Product Line VEXTA Motor Type 2-Phase Motor Frame Size 2.22 in. sq. Shaft/Gear Type Round Shaft (No Gearhead) Holding Torque Bipolar (Parallel) 240 oz-inBipolar (Series) 240 oz-inUnipolar 191 oz-in Type Standard Connection Type Bipolar (Series)UnipolarBipolar (Parallel) Lead Wires 8 Current per Phase (A/phase) 1.4 [Bipolar (Series)]2 [Unipolar]2.8 [Bipolar (Parallel)] Encoder None Shaft Single Voltage (VDC) 3.16 [Bipolar (Parallel)] 6.3 [Bipolar (Series)] 4.5 [Unipolar] Resistance (?/phase) 1.13 [Bipolar (Parallel)] 4.5 [Bipolar (Series)] 2.25 [Unipolar] Inductance (mH/phase) 3.6 [Bipolar (Parallel)] 14.4 [Bipolar (Series)] 3.6 [Unipolar] Step Angle 1.8 Rotor Inertia (oz-in2) 2.6 oz-in2 RoHS Compliant Yes Insulation Resistance 100 M? or more when 500 VDC megger is applied between the windings and the case under normal ambient temperature and humidity. Dielectric Strength Sufficient to withstand 1.0 kVAC at 50 Hz or 60 Hz applied between the windings and the case for 1 minute under normal ambient temperature and humidity. Temperature Rise Temperature rise of the windings is 144ºF (80ºC) or less measured by the change resistance method. (at rated current, at standstill, 2 phases energized) Insulation Class Class B [266ºF (130ºC)] Ambient Temperature Range 14 ~ 122ºF (-10 ~ 50ºC) (non-freezing) Ambient Humidity 85% or less (Non-Condensing) Shaft Runout 0.05 mm (0.002 in.) T.I.R. Concentricity 0.075 mm (0.003 in.) T.I.R. Perpendicularity 0.075 mm (0.003 in.) T.I.R. Radial Play 0.025 mm (0.001 in.) maximum of 5 N (1.12 lb.) Axial Play 0.075 mm (0.003 in.) maximum of 10 N (2.2 lb.) Step Accuracy 3 arc minutes (0.05º)