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Nema 17 Stepper Motor Bipolar 1.8 deg 13Ncm (18.4oz.in) 1A 3.5V 42x42x20mm 4 Wires (17HS08-1004S)

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This is the shortest bipolar Nema 17 stepper motor we have, it with step angle 1.8deg and size 42x42x20mm. It has 4 wires, each phase draws current 1.0A, with holding torque 13Ncm (18.4oz.in).

Electrical Specification

  • Manufacturer Part Number: 17HS08-1004S
  • Motor Type: Bipolar Stepper
  • Step Angle: 1.8 deg
  • Holding Torque: 13Ncm(18.4oz.in)
  • Rated Current/phase: 1.0A
  • Voltage: 3.5V
  • Phase Resistance: 3.5ohms
  • Inductance: 4.5mH ± 20%(1KHz)

Physical Specification

  • Frame Size: 42 x 42mm
  • Body Length: 20mm
  • Shaft Diameter: Φ5mm
  • Shaft Length: 20mm
  • D-cut Length: 16.5mm
  • Number of Leads: 4
  • Lead Length: 400mm
  • Weight: 140g





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Next: Nema Size 17 Stepper Motor Bipolar 1.8 deg 18Ncm (25.5oz.in) 0.7A 2.9V 42x42x25mm 4 Wires
Electrical Specification
Bipolar/Unipolar Bipolar
Step Angle(°) 1.8
Holding Torque (Ncm) 13
Holding Torque (oz.in) 18.4
Rated Current (A) 1
Phase Resistance(ohm) 3.5
  • Connectors: Molex, Harwin, Tyco/AMP, JST etc.
  • Lead wires & cables: Special lengths, Protective hose
  • Shaft: Round, D-Cut, Cross drilled, Key-Way, Thread or Hollow
  • Winding: Resistance, Inductance, Rated Current, etc.

abalos1976 – 16 Mar 2018

arrived in good time and fits my extruder perfectly

Daniel Gordon – 02 Sep 2017

The item itself is as described. Except, the torque is not sufficient to work in a 3d printing application, or really very many applications at all. I just would not feed filament (at all).

Jon Dunfee – 30 Aug 2017

I use this as a direct replacement for the extruder motor on a Tevo Little Monster. It will run hot if you leave the amperage setting as-is, so it might be advisable to review your config settings and see if it can be lowered to anything < 1A (I'm at .7). Overall, works great and will likely be ordering some more soon!

Josh – 02 May 2017

Perfect for a direct drive extruder, light wight and just powerful enough. Paired mine with an E3D Titan.

Kenneth Yuen – 17 Mar 2017

I have a Lulzbot Taz 4 3D printer with dual extruders. If you knows what a lulzbot Taz 4, 5, or 6 is, then you will also know that the dual extruder is relatively very heavy. I bought this motor to lighten the load. it has improved the print quality a bit especially with the models that have sharp corners and where the X gantry is required to make sudden reverse moves. Other than using shorter screws to mount the motor, it's a direct fit. I did not have to adjust any voltage or calibrate the filament feed rate. The connector for the wire is not included. I've printed two big prints and a couple of medium sized prints with the new setup with no issues. I have not experience any skips or binding with the motors. It was worth the upgrade.

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