NEMA 23 57HS09 2.8A 127oz Stepper motor

(1 review)
3.00 (in)
5.00 (in)
3.00 (in)
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NEMA 23 Motor:


  • Step angle: 1.8 deg
  • Step per revolution: 200
  • Phases: 2
  • No. wires: 4
  • Current: 2.8A
  • Holding Torque: 0.9 N.M (127 oz*in)
  • Single shaft: 6.35mm in diameter
  • Shaft length: 21mm
  • Inductance: 1.2 mH
  • Phase resistance: 0.8 ohms
  • Detente torque: 400 gcm
  • Rotor Inertia: 280 g-cm2
  • Weight: 0.6KG (1.4lb)
  • Length: 54mm


Wire connection(2021) to stepping motor driver:
Red     to  A+
Blue  to  A-

Green  to  B+
Black     to  B-


  • 5
    Stepper motor

    Posted by Ed on Aug 5th 2022

    Motor worked great. Once I calibrated the laser controller it has worked flawlessly. Prior to purchasing this item I asked Lightobject for direction in selecting the correct motor and found they were very knowledgeable in suggesting the correct replacement motor. I highly recommend Lightobject and their products.