This geared NEMA 17 stepper motor is integrated with one KG series planetary gearbox, which is more reliable, more precise and has shorter length than HG series planetary gearbox.
Motor Specification
Part Number: 42HS40-1684S-KG25
Step Angle: 1.8deg
Bi/Unipolar: Bipolar
Holding Torque: 0.45Nm(63.7oz.in)
Rated Current/phase: 1.68A
Phase Resistance: 1.65ohms
Inductance: 3.2mH
Motor Length: 40mm
Number of Leads: 4
Lead Length: 500mm
Gearbox Specification
Gearbox Type: Planetary
Gear Ratio: 25:1
Efficiency: 94%
Backlash at No-load: 20arcmin
Gearbo Length: 51mm
Shaft Diameter: Φ8mm
Shaft Length: 21.5mm
Keyway Length: 14mm
Motor Connection
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| Motor Specification | |
| Step Angle(°) | 1.8 |
| Bipolar/Unipolar | Bipolar |
| Holding Torque(Nm) | 0.45 |
| Holding Torque(oz.in) | 63.7 |
| Rated Current(A) | 1.68 |
| Frame Size(mm) | 42x42 |
| Body Length(mm) | 40 |
| Gearbox Specification | |
| Gearbox Type | Planetary |
| Gear Ratio | 25:1 |
| Efficiency | 94% |
| Backlash at No-load | 20arcmin |
| Gearbox Length(mm) | 51 |
| Shaft Diameter(mm) | 8 |
| Shaft Length(mm) | 21.5 |
