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Pololu 1474 - Stepper Motor: Bipolar, 200 Steps/Rev, 57A—56mm, 2.5V, 2.8 A/Phase View larger

Pololu 1474 - Stepper Motor: Bipolar, 200 Steps/Rev, 57A—56mm, 2.5V, 2.8 A/Phase

Stepper Motor: Bipolar, 200 Steps/Rev, 57A—56mm, 2.5V, 2.8 A/Phase

More details

ID: 210508

42,86€ gross (23% VAT)
34,84€ net

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Data sheet

Shaft diameter6,35 mm
Resolution200 step/rev
Torque13 kg-cm
Coil resistance0,9 Ω
Coil current2,8 A
Inductance of the coil2,5 mH
Voltage2,5 V
Weight0,7 kg

More info

Stepper Motor: Bipolar, 200 Steps/Rev, 57A—56mm, 2.5V, 2.8 A/Phase

This NEMA 23-size hybrid bipolar stepping motor has a 1.8° step angle (200 steps/revolution). Each phase draws 2.8 A at 2.5 V, allowing for a holding torque of 13 kg-cm (180 oz-in).

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 2.5 V, allowing for a holding torque of 13 kg-cm (180 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.

Our 1/4" universal mounting hub can be used to mount objects on the stepper motor’s 1/4"-diameter output shaft.

Specifications

  • Size: 56.4 mm square A— 56 mm, not including the shaft (NEMA 23)
  • Weight: 0.7 kg (25 oz)
  • Shaft diameter: 1/4" (6.35 mm) “D”
  • Steps per revolution: 200
  • Current rating: 2.8 A per coil
  • Voltage rating: 2.5 V
  • Resistance: 0.9 Ohm per coil
  • Holding torque: 13 kg-cm (180 oz-in)
  • Inductance: 2.5 mH per coil
  • Lead length: 12 in

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 (note: the diagram below incorrectly lists this flattened width as 6 mm when it is really 5.85 mm). This shaft works with our 1/4" universal mounting hub.

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
  • Laser cutters
  • Pick and place machines
  • Linear actuators
  • Hard drives
Pololu’s assortment of stepper motors.

Note: This stepper motor is SOYO part number SY57STH56-2804A.

Manufacturer

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