Hollow Shaft Nema 8 Stepper Motor OK20HC38-22NK1 Bipolar 1.8 Deg 3.13Ncm 0.6A 5.4V 2 Phase Dual Shaft
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This is a bipolar 2-phase stepper motor with a 1.8° step angle and a static moment of 3.13Ncm (4.43 oz.in). It operates with a rated current of 0.6A per phase and a phase voltage of 5.4V. The motor features a frame size of 20x20mm and a body length of 38mm. It includes a dual shaft design with front and rear shaft lengths of 22mm and 10mm, respectively. The motor is equipped with four leads, each with a lead length of 400mm. Weighing 0.8kg.
Electrical Specification:
Manufacturer Part Number:OK20HC38-22NK1
Motor Type: Bipolar Stepper
Number of Phase:2
Step Angle: 1.8 deg
Static Moment: 3.13Ncm(4.43 oz.in)
Phase Voltage:5.4V
Rated Current/phase: 0.6A
Phase Resistance: 9 ohms± 10%
Inductance: 3 mH ± 20%(1KHz);
Physical Specification:
Frame Size: 20 x 20 mmBody Length: 38 mm
Outer Shaft Diameter: Φ5mm
Inner Shaft Diameter: Φ5 mm
Front Shaft Length: 22 mm
Rear Shaft Length: 10 mm
Number of Leads: 4
Lead Length: 400 mm
Weight: 0.8kg;
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| Electrical Specification | |
|---|---|
| Static Moment | 3.13 |
| Bipolar/Unipolar | Bipolar |
| Holding Torque (Ncm) | 3.13 |
| Holding Torque (oz.in) | 4.43 |
| No. of Phase | 2 |
| Step Angle(deg.) | 1.8 |
| Phase Current(A) | 0.6 |
| Phase Voltage(V) | 5.4 |
| Inductance(mH) | 3 |
| Phase Resistance(ohm) | 9 |
| Step Angle(°) | 1.8 |
| Physical Specification | |
| Body Length(mm) | 38 |
| Single Shaft/Dual Shaft | Dual Shaft |
| Weight(g) | 800 |
| Frame Size(mm) | 20 x 20 |
| Shaft Type | Hollow |
| Lead Length(mm) | 400 |
| No. of Lead | 4 |


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