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    CNC Bipolar Nema 17 Stepper motor, 2.1V 2.1A, 2 phase 4 wires

    This is a high precision 4-wire bipolar stepper motor, size in Nema 17, 1.8 deg. step angle (200 steps/rev), body in 47mm, good quality and manufacturer direct sale.
    SKU: ATO-M-STEPPER-47-2104A
    Delivery date: 6-12 days

    Nema 17 stepper motor, 2.1V 2.1A, 2 phase 4 wires bipolar stepper motor, with 1.8 deg. step angle (200 steps/rev), body in 47mm, allowing for a holding torque of 62 oz-in.


    Basics Model ATO47-2104A
    Step Angle 1.8°
    Length 47mm
    Weight 0.35kg
    Voltage 2.1V
    Current 2.1A
    Inductance 2mH
    Motor Leads 4
    Rotor Inertia 68g-cm2
    Maximum Static Torque 62oz-in/5kg-cm
    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 -10℃~+50℃
    Insulation Resistance 100MΩ Min. 500VDC
    Dielectric Strength 1Min. 500VAC·5mA
    Shaft Radial Play 0.06Max. 450g
    Shaft Axial Play 0.08Max. 450g

    Nema 17 dimensions wiring diagram
    Tips: Linear rod stepper motor for machine tool equipment
    The advantages over applying the linear rod stepper motor into machine tool equipment are as below:

    1. With linear drive device, it is easy to reach the velocity lower than 1μm/s or higher than 5m/s. linear drive system can ensure the constant velocity characteristics. The velocity misalignment is superior to ±0.01%. During application of velocity with higher requirements, smaller linear rod motor can provide acceleration larger than 10g more conveniently while the acceleration generated by the traditional motor is generally within 1g.
    2. Linear rod stepper motor features simple structure and it is comprised of few components. Therefore, the required lubricating is little (linear rail should be lubricated at regular interval). It means that it has long service life and runs cleanly. By contrast, the traditional drive system is comprised of more than 20 parts and components, including motor, coupler, ball screw, U-shaped block, bearing, bolster and lubricating system.
    3. Other advantages of linear rod stepper motor includes low acting force and small velocity ripple so that the stable motion profile is guaranteed, which of course relies on structure, magnetic board and drive software. To utilize the intrinsic advantages of linear rod stepper motor over dynamic braking, the drive amplifier should effectively monitor EMF and even if the power may be cut off. Many linear rod stepper motors can be installed in the way of “back-to-back” to ensure the acting force is enhanced. Besides, extra magnetic board can be set to ensure the substantial infinite stroke (limited to the feedback device and length of cable) without accuracy loss.
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