factory low price Size 42mm Hollow Shaft Stepper Motor - Nema 23 (57mm) hollow shaft stepper motors – Thinker
factory low price Size 42mm Hollow Shaft Stepper Motor - Nema 23 (57mm) hollow shaft stepper motors – Thinker Detail:
>> Short Descriptions
Motor Type | Bipolar stepper |
Step Angle | 1.8° |
Voltage (V) | 2.6 / 3.6 |
Current (A) | 3 / 4 |
Resistance (Ohms) | 0.86 / 0.76 |
Inductance (mH) | 2.6 / 3.2 |
Lead Wires | 4 |
Holding Torque (N.m) | 1 / 1.8 |
Motor Length (mm) | 55 / 75 |
Ambient Temperature | -20℃ ~ +50℃ |
Temperature Rise | 80K Max. |
Dielectric Strength | 1mA Max. @ 500V, 1KHz, 1Sec. |
Insulation Resistance | 100MΩ Min. @500Vdc |
>> Certifications
>> Electrical Parameters
Motor Size |
Voltage/ Phase (V) |
Current/ Phase (A) |
Resistance/ Phase (Ω) |
Inductance/ Phase (mH) |
Number of Lead Wires |
Rotor Inertia (g.cm2) |
Holding Torque (N.m) |
Motor Length L (mm) |
57 |
2.6 |
3 |
0.86 |
2.6 |
4 |
300 |
1 |
55 |
57 |
3 |
4 |
0.76 |
3.2 |
4 |
480 |
1.8 |
75 |
>> General technical parameters
Radial clearance |
0.02mm Max (450g load) |
Insulation resistance |
100MΩ @500VDC |
Axial clearance |
0.08mm Max (450g load) |
Dielectric strength |
500VAC, 1mA, 1s@1KHZ |
Max radial load |
70N (20mm from flange surface) |
Insulation class |
Class B (80K) |
Max axial load |
15N |
Ambient temperature |
-20℃ ~ +50℃ |
>> 57HK2XX-X-4B motor outline drawing
>> Torque-frequency curve
Test condition:
Chopper drive, no ramping, half micro-stepping, drive voltage 40V
Thinker Motion is an outstanding and innovative linear motion solution provider. The company has passed ISO9001 certification, its products have passed RoHS and CE certification, and has 22 product patents.
We always put the needs of our customers as priority and are committed to providing our customers with high-quality products and services. Currently we serve about 600 customers.
Product detail pictures:

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