NEMA 17 42HSM03 Dual Shaft Stepper motor

Price: $19.95
42 units available
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NEMA 17 Motor:


  • Step angle: 1.8 deg
  • Step per revolution: 200
  • Phases: 2
  • Shaft diameter: 5mm
  • Shaft length: 14mm and 18mm
  • No. wires: 4
  • Current: 2A
  • Holding Torque: 0.57N.M (80oz*in)
  • Inductance: 3.6 mH
  • Phase resistance: 1.7 ohms
  • Detente torque: 200 gcm
  • Rotor Inertia: 82 g-cm2
  • Weight: 0.34KG (0.75lb)
  • Length: 48mm
Average rating 10 out of 10 ( based on 2 reviews )

Solid motor, has held up well

Review by Skyline Workshop on 11/3/2015

I use this as the motor for my Y-axis on my DIY Buildlog2.0 laser machine. It gets loaded pretty heavily because I scaled the machine up to a 24x32 cutting bed and my gantry is fairly heavy. Machine has several thousand hours on it and is still holding up well, motor is right next to exhaust duct and is in a harsh environment and has had no issues to date.

Perfect Y-Axis replacement.

Review by Phil on 11/29/2016

Purchased to replace the Y-Axis stepper on my K40 machine. It's way overkill for the machine, but it's a nice component that can later be used if I move to a larger stage. It's being driven by a Gecko Drive G201X (running at 24 volts) and an AWC708C Plus. Very inexpensive upgrade. If you do use it to replace the stepper on the K40, you will have to shorten the shaft running the length of the X-Y stage. Do not shorten the shaft of the motor. I like the JST connector on the motor housing much more than permanent leads.

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