NEMA 11 Specifications

Our NEMA 11 kits come with Bipolar, 1.8 degree step angle (200 steps/revolution), 28x45mm motor with a 5mm shaft.  Each phase draws 670 mA at 4.5 V, delivering 13oz-in of holding torque.  With our 16 tooth GT2 motor pulley, the actuator has a linear holding torque of just over 4lbs.

NEMA 11 Motor Long Stack Specifications:                                Wiring Diagram:

Steps per revolution: 200
Current rating: 670 mA per coil
Voltage rating: 4.5 V
Resistance: 6.8 Ω per coil
Inductance: 4.9 mH per coil
Lead length: 30 cm (12″)
Output shaft is supported by two ball bearings

Actuator Specifications:

Distance Per Full Step (1.8 degree): 0.16mm
Distance Per 1/16th Microstep:: 0.01mm
Maximum Holding Torque (NEMA 11 Long Stack): 4lbs
Recirculating Linear Bearing comes pre-loaded on the actuator rail


To get the most out of our actuators you will need these other components:

  • Stepper Motor Driver board
  • Arduino Controller board
  • Program or Sketch for the controller board to send step pulses to the driver board

Knowledge of programming an Arduino or similar microcontroller system will help you customize the acceleration and speed of your actuator, and how far along the rail you want the linear bearing to travel.