Stepper Motor: Bipolar, 200 Steps/Rev, 57×76mm, 3.2V, 2.8 A/Phase

Stepper Motor: Bipolar, 200 Steps/Rev, 57×76mm, 3.2V, 2.8 A/Phase
Pololu item #: 1478 95 in stock

Price break Unit price (US$)
1 49.95
10 44.96


backorders allowed

This NEMA 23-size hybrid bipolar stepping motor has a 1.8° step angle (200 steps/revolution). Each phase draws 2.8 A at 3.2 V, allowing for a holding torque of 19 kg-cm (270 oz-in).

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 Description Specs (13) Pictures (6) Resources (1) FAQs (2) On the blog (0) 

Bipolar stepper motor wires are terminated with bare leads.
Bipolar stepper motor wiring diagram.

Overview

This high-torque hybrid bipolar stepping motor has a 1.8° step angle (200 steps/revolution). Each phase draws 2.8 A at 3.2 V, allowing for a holding torque of 19 kg-cm (270 oz-in). The motor has four color-coded wires terminated with bare leads: black and green connect to one coil; red and blue connect to the other. It can be controlled by a pair of suitable H-bridges (one for each coil), but we recommend using a bipolar stepper motor driver.

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.

Specifications

  • Size: 56.4 mm square × 76 mm, not including the shaft (NEMA 23)
  • Weight: 1 kg (35 oz)
  • Shaft diameter: 6.35 mm (0.25″) “D”
  • Steps per revolution: 200
  • Current rating: 2.8 A per coil
  • Voltage rating: 3.2 V
  • Resistance: 1.13 Ω per coil
  • Holding torque: 19 kg-cm (270 oz-in)
  • Inductance: 3.6 mH per coil
  • Lead length: 30 cm (12″)
  • Output shaft supported by two ball bearings

More specifications are available in the datasheet (49k pdf).

Dimensions

The following diagram shows the stepper motor dimensions in mm. The output D-shaft has a 0.25″ (6.35 mm) diameter 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 SY57STH76-2804A.

People often buy this product together with:

DRV8825 Stepper Motor Driver Carrier, High Current DRV8825 Stepper Motor Driver Carrier, High Current
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)
0.1" (2.54mm) Crimp Connector Housing: 1x2-Pin 25-Pack 0.1" (2.54mm) Crimp Connector Housing: 1x2-Pin 25-Pack

Related Products

Steel L-Bracket for NEMA 23 Stepper Motors
AMIS-30543 Stepper Motor Driver Carrier
DRV8825 Stepper Motor Driver Carrier, High Current
DRV8834 Low-Voltage Stepper Motor Driver Carrier
A4988 Stepper Motor Driver Carrier, Black Edition
A4988 Stepper Motor Driver Carrier
A4988 Stepper Motor Driver Carrier with Voltage Regulators
Pololu Universal Aluminum Mounting Hub for 1/4″ Shaft, #4-40 Holes (2-Pack)
Pololu Universal Aluminum Mounting Hub for 1/4″ Shaft, M3 Holes (2-Pack)
Pololu Aluminum Scooter Wheel Adapter for 1/4″ Shaft
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Crimping Tool: 0.08-0.5 mm² Capacity, 20-28 AWG
Male Crimp Pins for 0.1" Housings 100-Pack
0.1" (2.54mm) Crimp Connector Housing: 1x4-Pin 10-Pack
0.1" (2.54mm) Crimp Connector Housing: 1x6-Pin 10-Pack

Related Categories

Stepper Motors
NEMA 23 Stepper Motors
Stepper Motor Drivers
Robot Controllers
Crimp Connector Housings
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