Nema 23 57mm Stepper Motor 2 Phase Current 2.8A Low Noise High Stable For 3D Printer Industrial Equipment Laser CNC Machine High Torque | Low Noise | High Stable | Don't Throw Step Features: ♦Nema 23 Stepper Motor, 1.89 Nm Holding Torque ♦3D Printer Motor With 1.8 Degree, 2 Phase ♦Nema 23 Stepper Motor Size 57*57*76mm, Line Length 20cm, Weight 1.12kg/pcs ♦Stage Stepper Motor 2.8A Rated Current, Resistance 3.76Ω+10% ♦Industrial Stepper Motor For Cutting Machine, Marking Machine CNC Router Motor Product Parameters: ●Number Of Phase:2 ●Basic Step Angle:1.8° ●Positional Accuracy(no-load):+0.09°Max ●Rated Current(Phase): 2.8A ●Resistance(Phase)@20℃: 3.76Ω+10% ●Inductance(Phase)@1KHz: 3.6mH+20% ●Holding Torque:1.89Nm ●Radial Play(Max):0.025mm(Load 450g) ●AxialPlay(Max):0.075mm(Load 920g) ●Outy: Continuous ●Dielectric Strength: 500V A.C ●Insulation Resistance:100MΩ ●Insulation Class(UL):B ●Temperature Rise:80K Below/Max ●Life(Hours):5000 Above/Min Wide Application: The stepping motor is widely use for 3D printers, robotic arms, stage light, medical equipment, labeling machine, cutting machine, laser CNC machine, automatic devices, etc Warning: Make sure the motor is connected to a constant current or chopper drive controller before testing. Connecting the motor directly to a power supply will destroy the motor. Note: If you encounter technical problems during use, please be sure to ask us! We will solve the problem for you. Package list: 1PCS 57 Stepper Motor