
Round NEMA 23 Bipolar 1.8deg 0.65Nm (90.3oz.in) 2.8A 2.4V Ф57x51mm 4 Wires Stepper Motor
Manufacturer Part Number: 57H051H-2804
Frame Size: 57X57mm
Motor Type: Bipolar Stepper
Step Angle: 1.8 deg
Holding Torque: 0.65Nm(90.3oz.in)
Rated Current/phase: 2.8A
Voltage: 2.4V
Phase Resistance: 0.85ohms
Inductance: 2.2mH ± 20%(1KHz)
Body Length: 51mm
- Fast Delievery
- Quality Assurance
Customization Available
Product Introduction
Technical Parameter
|
Item |
Specifications |
|
Step Angle Accuracy |
±5% |
|
Resistance Accuracy |
±10% |
|
Inductance Accuracy |
±20% |
|
Temperature Rise |
80K Max. |
|
Ambient Temperature |
-20℃~+50℃ |
|
Insulation Resistance |
100MΩMin.@ 500VDC |
|
Dielectric strength |
One minute@500VAC∙5mA Max. |
|
Shaft Radial Play |
0.06Max.@450g |
|
Shaft Axial Play |
0.08Max.@450g |
Technical Specification
|
Model No. |
Polar |
Rated |
Current/ |
Resistance/ |
Inductance/ |
Holding |
# of |
Rotor |
Weight |
Length |
|
|
V |
A |
Ω |
mH |
oz-in |
kgf · cm |
g∙ cm2 |
kg |
mm |
|||
|
57H051H-2804 |
Bipolar |
2.4 |
2.8 |
0.85 |
2.2 |
90.3 |
6.5 |
4 |
110 |
0.6 |
51 |

Pull Out Torque Curve

FAQ
Q: How does a stepper motor work?
A: Stepper motors operate by receiving a sequence of electrical pulses that induce fixed angular or step increments of rotation. Each pulse triggers the motor to move a predetermined distance or angle, enabling precise control over its position and speed.
Q: What is your minimum order quantity, can you send me samples?
A: Our minimum order quantity varies depending on the specific model, and we are open to discussing it on a case-by-case basis. We can provide samples upon request.
Q: How do you ensure quality control?
A: Ensuring quality control is of utmost importance to us throughout the entire production process. We meticulously test every product to ensure its functionality and reliability before it is packaged for shipment.
Q: Can stepper motors lose steps?
A: Yes, stepper motors can experience step loss under certain conditions. Step loss may occur if the applied torque exceeds the motor's capability, if the load on the motor becomes too high, or if the motor is not appropriately sized for the specific application. It is crucial to ensure that the motor is adequately matched to the requirements of the system and that the applied torque remains within the motor's limitations to prevent step loss.
Q: Do you provide OEM & ODM services?
A: We offer OEM & ODM services to cater to your specific requirements.
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