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    Nema 23 Bipolar Stepper Motor, 2A, 1.8 degree, 4 wires

    Low price and high quality Nema 23 bipolar stepper motor, phase current 2A and resistance 1Ω, 0.5Nm holding torque, 1.8 deg. step angle (200 steps/rev), body in 41mm, manufacturer direct sale.
    SKU: ATO-STEP-2462302
    30-day Returns
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    Delivery date: 6-12 days

    Nema 23 bipolar Stepper motor, 0.5Nm in 41mm, 1.8 degree, 2 phase 4 wires, manufacturer direct sale.


    Electrical Specification Model ATO57HS41-2004
    Matched Driver Model ATODSP57(Click it to see more info)
    Step Angle 1.8°
    Holding Torque 0.5Nm
    Rated Current/phase 2A
    Phase Resistance
    Inductance 2.2mH
    Rotor Inertia 120g-cm2
    Physical Specification Frame Size 57 x 57mm
    Length 41mm
    Shaft Diameter Φ8mm
    Shaft Length 19mm
    Motor Leads 4
    Weight 0.45kg
    Technical Parameters Step Angle Accuracy ±5% (full step, no load)
    Resistance Accuracy ±10%
    Inductance Accuracy ±20%
    Temperature Rise 80℃ Max. (rated current, 2 phase on)
    Ambient Temperature -20℃~+50℃
    Insulation Resistance 100MΩ Min. 500VDC
    Dielectric Strength 500V AC for one minute
    Shaft Radial Play 0.02Max. 450g
    Shaft Axial Play 0.08Max. 450g
    Quality Assurance Warranty Period 12 months
    Certificate CE, ROHs, ISO/SGS9001

    Dimensions: (Unit=mm)
    NEMA 23 bipolar stepper motor dimensions

    L Max=41mm, Shaft Length=L1-1.6mm, L1(Common)=20.6mm

    Wiring Diagram

    NEMA 23 bipolar stepper motor wiring diagram

    Tips: Three factors should be paid attention to in selection of the stepper motor

    1. Stepping angle
      it is necessary to select the stepping angle of stepper motor according to the requirements of load precision. The least resolution ratio of the load is generally converted to the motor shaft, pay attention to the angle for each resolution ratio and the stepping angle of stepper motor should be equal to or smaller than the angle.
    2. Static torque
      Select the static torque according to the load of stepper motor while load can be divided into inertia and friction load. When directly starting the stepper motor (generally from the low to high velocity), the considerations into the two kinds of load are given. When starting the motor at acceleration, give considerations into the inertia load; when the motor rotates at constant velocity, only give considerations into the friction load. Generally, the static torque shall be within 2-3 times of the friction load.
    3. Current
      As for the stepper motors with the same static torque, there is great difference in their motion characteristics due to the difference in current parameters. The current of stepper motor can be judged according to the torque frequency characteristic curve diagram.
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