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Nema 17 Bipolar Stepper motor, 2.8V 1.68A, 2 phase 4 wires

$65.85
This bipolar Nema 17 stepper motor is most popular, it with 1.8 deg. step angle (200 steps/revolution). Each phase draws 1.68A, allowing for a holding torque of 50 oz-in.
SKU: ATO-STEP-3917168
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Delivery date: 6-12 days

Nema 17 bipolar stepper motor, 2.8V 1.68A, 2 phase 4 wires, it with 1.8 deg. step angle (200 steps/revolution), brand new and direct sale by manufacturer.
Specifications

Electrical Specification Model ATO39-1684A
Step Angle 1.8°
Holding Torque 3.6kg-cm(50oz.in)
Voltage 2.8V
Rated Current/phase 1.68A
Phase Resistance 1.65Ω
Inductance 4mH
Rotor Inertia 54g-cm2
Physical Specification Frame Size 42 x 42mm
Length 39mm
Shaft Diameter Φ5mm
Shaft Length 22mm
Motor Leads 4
Weight 0.28kg
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
Quality Assurance Warranty Period 12 months
Certificate CE, ROHs, ISO/SGS9001

 Nema 17 Stepper Motor Dimension (Unit=mm)

Nema 17 stepper motors dimension

L1=24mm, Lmax=39mm

Nema 17 Stepper Motor Wiring Diagram

Nema 17 stepper motors wiring diagram

Tips: Why the torque of the stepper motor is reduced along with the rise in rotational velocity?
When the stepper motor rotates, the inductance of each phase winding of motor will form a reverse electromotive force. The higher the frequency the larger the reverse electromotive force. Under its role, the the phase current of motor is reduced along with the increase in frequency rate (or velocity), thus the torque decreases.

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