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Nema Size 17 Stepper Motor Bipolar 45Ncm (64oz.in) 2A 42x40mm 4 Wires w/ 1m Cable & Connector for DIY 3D Printer CNC Rob

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This is one of the most popular stepper motor in Nema 17 size, it with 1.8deg step and size 42x42x40mm, It has 4 wires with 1m cable and 2.54mm pitch connector, each phase draws 2.0A, with holding torque 45Ncm (64oz.in). This stepper motor is ideal for the RepRap Prusa, Mendel 90, Rostock and similar 3D printers, as well as CNC and robotics applications.

Electrical Specification

  • Manufacturer Part Number: 17HS16-2004S1
  • Motor Type: Bipolar Stepper
  • Step Angle: 1.8 deg
  • Holding Torque: 45Ncm(64oz.in)
  • Rated Current/phase: 2A
  • Voltage: 2.2V
  • Phase Resistance: 1.1ohms
  • Inductance: 2.6mH ± 20%(1KHz)

Physical Specification

  • Frame Size: 42 x 42mm
  • Body Length: 40mm
  • Shaft Diameter: Φ5mm
  • Shaft Length: 23mm
  • D-cut Length: 21mm
  • Number of Leads: 4
  • Lead Length: 1000mm
  • Weight: 310g





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Prev: Nema 17 Stepper Motor Bipolar 1.8 deg 36Ncm (51oz.in) 0.28A 15.7V 42x42x40mm 4 Wires
Next: Nema 17 Stepper Motor Unipolar 1.8 deg 32Ncm (45.3oz.in) 0.4A 12V 42x42x48mm 6 Wires
Electrical Specification
Bipolar/Unipolar Bipolar
Holding Torque (Ncm) 45
Holding Torque (oz.in) 64
Inductance(mH) 2.6
Phase Resistance(ohm) 1.1
Rated Current (A) 2
Step Angle(°) 1.8
Physical Specification
Body Length(mm) 40
Frame Size(mm) 42x42
Single Shaft/Dual Shaft Single Shaft
Shaft Type D-Cut
Shaft Diameter(mm) 5
Shaft Length(mm) 23
No. of Lead 4
Lead Length(mm) 1000
Weight(g) 300
  • 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.

H. Arnold – 17 Dec 2017

Great quality stepper motors

Mikey – 08 Jun 2017

Very impressed. Performs Much Better. The Motor is a Beast.
This motor is a beast. Using it on my Wanhao DI3. With a Flexion HT extruder. With the torque that this motor provides, i am able to tighten the jam nut much tighter than what i would before. Print quality and torque are very noticeable. Had to adjust stepper driver for 1.44v. The motor is a beast.

Tim Gardner – 15 May 2017

Really Nice Motor
Really nice quality motor and has a plug on the end too and not bare wires.

Mike Hatten – 07 May 2017

great experimental motor

Larry – 23 Apr 2017

Drop in replacement for RepRapGuru steppers.
I ordered two of these to replace my Z motors on a RepRapGuru I3 machine. Only one motor was bad, but figured it would be best to replace as a matched pair and pull the good one aside for a standby replacement for any other failures.
They were a bolt-up, drop in replacement for the stock motors. Though, this item has a higher amperage rating and slightly higher torque, so I can under-drive them a little an lose nothing in the trade.

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