This ultrathin nema 8 stepper motors has one body length of 20mm, each phase drawing 0.4A current with holding torque 22mN.m. Please note the output shaft diameter is 3.5mm.
Electrical Specification
Part Number: 20HS20-0404S
Step Angle: 1.8deg
Bi/UnIpolar: Bipolar
Holding Torque: 22mN.m
Rated Current/phase: 0.4A
Phase Resistance: 12.5ohms
Inductance: 4.5mH
Driving Voltage: 12-24VDC
Physical Specification
Frame Size: 20x2mm
Body Length: 20mm
Shaft Diameter: Φ3.5mm
Shaft Length: 10mm
Number of Leads: 4
Lead Length: 300mm
Weight: 40g
Motor Connection
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| Electrical Specification | |
| Bipolar/Unipolar | Bipolar |
| Step Angle(°) | 1.8 |
| Holding Torque(Nm) | 0.022 |
| Holding Torque(oz.in) | 3.11 |
| Rated Current(A) | 0.4 |
| Phase Resistance(ohm) | 12.5 |
| Phase Inductance(mH) | 4.5 |
| Physical Specification | |
| Frame Size(mm) | 20x20 |
| Body Length(mm) | 20 |
| Shaft Type | Round |
| Single Shaft/Dual Shaft | Single Shaft |
| Shaft Diameter(mm) | 3.5 |
| Shaft Length(mm) | 10 |
| No. of Leads | 4 |
| Lead Length(mm) | 300 |
| Weight(KG) | 0.04 |
