Pololu Stepper Motor NEMA 23 Unipolar Bipolar 200 Steps Rev 57×41mm 5.7V 1 A Phase

Artikelnummer: PO1476

Hersteller Artikel Nr.: 1476

This NEMA 23-size hybrid stepping motor can be used as a unipolar or bipolar stepper motor and has a 1.8° step angle (200 steps/revolution). Each phase draws 1 A at 5.7 V, allowing for a holding torque of 4 kg-cm (55 oz-in).

Kategorie: Motoren

26,98 €

inkl. 19% USt.,

sofort verfügbar

Lieferzeit: 1 bis 2 Tage



6-lead, unipolar/bipolar stepper motor wires are terminated with bare leads.
6-lead, unipolar/bipolar stepper motor wiring diagram.


This high-torque hybrid stepping motor has a 1.8° step angle (200 steps/revolution). Each phase draws 1 A at 5.7 V, allowing for a holding torque of 4 kg-cm (55 oz-in). The motor has six color-coded wires terminated with bare leads that allow it to be controlled by both unipolar and bipolar stepper motor drivers. When used with a unipolar stepper motor driver, all six leads are used. When used with a bipolar stepper motor driver, the center-tap yellow and white wires can be left disconnected (the red-blue pair gives access to one coil and the black-green pair gives access to the other coil). We recommend using it as a bipolar stepper motor.

NEMA 23 stepper motor (item #1475) mounted with a steel L-bracket for NEMA 23 stepper motors.

Our 1/4? universal mounting hub and 1/4? scooter wheel adapter can be used to mount objects on the stepper motor?s 1/4?-diameter output shaft, and we carry a NEMA 23 steel bracket for securely mounting this stepper motor to a flat surface (the picture above shows this bracket being used with a taller NEMA 23 stepper motor).


  • Size: 56.4 mm square × 41 mm, not including the shaft (NEMA 23)
  • Weight: 450 g (16 oz)
  • Shaft diameter: 6.35 mm (0.25?) ?D?
  • Steps per revolution: 200
  • Current rating: 1 A per coil
  • Voltage rating: 5.7 V
  • Resistance: 5.7 ? per coil
  • Holding torque: 4 kg-cm (55 oz-in)
  • Inductance: 5.4 mH per coil
  • Lead length: 30 cm (12?)
  • Output shaft supported by two ball bearings

More specifications are available in the datasheet (50k pdf).


The following diagram shows the stepper motor dimensions in mm. The output shaft has a 0.25? (6.35 mm) diameter. Though not shown in the diagram, the output is a D-shaft with a section that is flattened by 0.5 mm. This shaft works with our 1/4? universal mounting hub and 1/4? scooter wheel adapter.

The inside of a bipolar stepper motor.

Stepper Motor Applications

Stepper motors are generally used in a variety of applications where precise position control is desirable and the cost or complexity of a feedback control system is unwarranted. Here are a few applications where stepper motors are often found:

  • Printers
  • CNC machines
  • 3D printer/prototyping machines (e.g. RepRap)
  • Laser cutters
  • Pick and place machines
  • Linear actuators
  • Hard drives

Pololu?s assortment of stepper motors.

Note: This stepper motor is SOYO part number SY57STH41-1006A.

People often buy this product together with:

DRV8825 Stepper Motor Driver Carrier, High CurrentDRV8825 Stepper Motor Driver Carrier, High Current
DRV8834 Low-Voltage Stepper Motor Driver CarrierDRV8834 Low-Voltage Stepper Motor Driver Carrier
Pololu Universal Aluminum Mounting Hub for 1/4? Shaft, #4-40 Holes (2-Pack)Pololu Universal Aluminum Mounting Hub for 1/4? Shaft, #4-40 Holes (2-Pack)

Artikelgewicht:0,45 Kg

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