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Stepper Motor: Bipolar, 200 Steps/Rev, 57x56mm, 2.5V, 2.8 A/Phase

Pololu
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Hersteller:
Pololu
Artikel-Nr.:
EXP-R25-205
Herstellernummer:
1474
Stückzahl:
1

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39,95 €*

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 × 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.

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
Specifications:
Dimensions
Size: 56.4 mm square × 56 mm1
NEMA size: 23
Weight: 700 g
Shaft diameter: 6.35 mm
General specifications
Shaft type: 1/4 inch "D"
Steps per revolution: 200
Current rating: 2800 mA2
Voltage rating: 2.5 V
Holding torque: 180 oz·in
Resistance: 0.9 Ohm2
Inductance per phase: 2.5 mH
Number of leads: 4
Lead length: 12 in
Notes:
  • 1.Not including the shaft.
  • 2.Per coil.
Documents: