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Stepper Motor: Unipolar/Bipolar, 200 Steps/Rev, 42x48mm, 4V, 1200mA

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  • Pololu
  • EXP-R25-076
  • 1200
  • 12
  • CN
  • 85011010
  • 0.366
This hybrid stepping motor has a 1.8° step angle (200 steps/revolution). Each phase draws... more

This hybrid stepping motor has a 1.8° step angle (200 steps/revolution). Each phase draws 1.2 A at 4 V, allowing for a holding torque of 3.2 kg-cm (44 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.

Specifications:

  • Size: 42.3 mm square × 48 mm, not including the shaft (NEMA 17)
  • Weight: 350 g (13 oz)
  • Shaft diameter: 5 mm “D”
  • Steps per revolution: 200
  • Current rating: 1.2 A per coil
  • Voltage rating: 4 V
  • Resistance: 3.3 Ω per coil
  • Holding torque: 3.2 kg-cm (44 oz-in)
  • Inductance: 2.8 mH per coil
  • Lead length: 30 cm (12″)
  • Output shaft supported by two ball bearings

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

Documents:

Voltage rating (V): 4,0
Current rating (A): 1,2
Holding torque: 31
NEMA: 17
Motor length (mm): 48
Leads: 6
Shaft: D-Schaft
Output shaft (mm): 24
Steps: 200
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