• NEMA-11 Bipolar Gearless Stepper Motor

This motor is a NEMA-11 motor (type 28STH32) that comes in a nice small size . Great for projects where space is restricted and that do not require too much torque (600 g·cm).

This is a 12V NEMA-11 Bipolar 4-wire Stepper Motor. This stepper features 1.8° Step Angle, power use is at 0.67A maximum.

The rear shaft of this motor can be equipped with the HKT22 Optical Encoder for applications where you need to keep track of the exact position, velocity, or acceleration of the motor.


  • Motor Type: Bipolar Stepper (4-wire)
  • Step Angle: 1.8°
  • Step Accuracy: 5 %
  • Holding Torque: 600 g·cm
  • Rated Torque: 520 g·cm
  • Maximum Speed (w/1063 Motor Controller): 600 RPM
  • Maximum Speed (w/1067 Motor Controller): 426 RPM
  • Acceleration at Max Speed(w/1067 Motor Controller): 2.2E+06 1/16 steps/sec²
  • Recommended Voltage: 12 V DC
  • Rated Current: 670 mA
  • Coil Resistance: 5.6 Ω
  • Phase Inductance: 3.4 mH
  • Shaft Diameter: 5 mm
  • Rear Shaft Diameter: 3.9 mm
  • Mounting Plate Size: NEMA - 11
  • Weight: 111 g
  • Wires: 4, Length is 300 mm

More information to be found in the Stepper User Guide

Mechanical Drawings


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NEMA-11 Bipolar Gearless Stepper Motor

  • Brand: Phidgets
  • Product Code: 3320
  • Availability: In Stock
  • 21.95€

  • Ex Tax: 18.14€

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