Nema 17 Stepper Motor Bipolar 44Ncm L=48mm 0.067 deg 1.68A 2.8V with 27:1 Planetary Gearbox
This Nema 17 stepper motor with 48mm body and 1.68A rated current, integrated a planetary gearbox of 26.85:1 gear ratio. It's suitable for applications that with limited space but need low speed and high torque.
Electrical Specification
Manufacturer Part Number: 17HS19-1684S-PG27
Motor Type: Bipolar Stepper
Step Angle: 0.067 deg
Holding Torque without Gearbox: 44Ncm(62.31oz.in)
Rated Current/phase: 1.68A
Phase Resistance: 1.65ohms
Voltage: 2.8V
Inductance: 2.8mH ± 20%(1KHz)
Gearbox Specifications
Gearbox Type: Planetary
Gear Ratio: 26.85: 1
Efficiency: 81%
Backlash at No-load: <=1 deg
Max.Permissible Torque: 3Nm(425oz.in)
Moment Permissible Torque: 5Nm(708oz.in)
Shaft Maximum Axial Load: 50N
Shaft Maximum Radial Load: 100N
Physical Specifications
Frame Size: 42 x 42mm
Motor Length: 48mm
Gearbox Length: 35mm
Shaft Diameter: Φ8mm
Shaft Length: 20mm
D-cut Length: 15mm
Number of Leads: 4
Lead Length: 500mm
Weight: 570g
Connection
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A+
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A-
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B+
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B-
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Black
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Green
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Red
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Blue
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Resources
Full Datasheet: 17HS19-1684S-PG27.pdf
Torque Curve: 17HS19-1684S-PG27_Torque_Curve.pdf
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| Gearbox Specification | |
|---|---|
| Backlash at No-load(Max.°) | 1 |
| Efficiency | 81% |
| Gear Ratio | 26.85:1 |
| Gearbox Length(mm) | 35 |
| Gearbox Type | Planetary |
| Max. Permissible Torque(Ncm) | 300 |
| Max. Permissible Torque(oz.in) | 424.8 |
| Moment Permissible Torque(Ncm) | 500 / 708.1 |
| Shaft Maximum Axial Load(N) | 50 |
| Shaft Maximum Radial Load(N) | 100 |
| Motor Specification | |
| Inductance(mH) | 3.2 |
| Lead Length(mm) | 500 |
| Motor Nema Size | Nema 17 |
| No. of Lead | 4 |
| Phase Resistance(ohm) | 1.8 |
| Rated Current (A) | 1.68 |
| Shaft Diameter(mm) | 8 |
| Shaft Length(mm) | 20 |
| Bipolar/Unipolar | Bipolar |
| Holding Torque w/o Gearbox(Ncm) | 52 |
| Holding Torque w/o Gearbox(oz.in) | 73.6 |
| Motor Length(mm) | 48 |
| Single Shaft/Dual Shaft | Single Shaft |
| Shaft Type | D-Cut |
| Physical Specification | |
| Weight(g) | 600 |
creadent3 – 21 Sep 2018
Great reliable serious reliable seller !!!
chris bordeleau – 27 Jul 2016
this motor worked great... plenty of torque and average noise for these motors... I'd buy another if I needed one
Alex – 05 Dec 2015
Seems solid, disassembled to inspect, planet gears are nylon, I hope it lasts long.
As expected, stepper is gear drive.
Includes data sheet, VERY useful.
Works great though, real ratio is 26 103/121 : 1
Using for single Z lift on small 3d printer for super high precision.
