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Stepper Motor: Unipolar/Bipolar, 200 Steps/Rev, 57

Quantity Unit price
To 4 €41.58 *
From 5 €36.46 *
From 25 €34.63 *
From 100 €32.89 *

Prices plus VAT plus shipping costs

5 Stück ready for shipment

  • Pololu
  • EXP-R25-185
  • 1476
  • CN
  • 85011099
  • 0.45
This high-torque hybrid stepping motor has a 1.8° step angle (200 steps/revolution). Each phase... more
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 3.9 kg-cm (54 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: 56.4 mm square × 41 mm, not including the shaft (NEMA 23)
  • Weight: 450 g (16 oz)
  • Shaft diameter: 1/4? (6.3 mm) ?D?
  • Steps per revolution: 200
  • Current rating: 1 A per coil
  • Voltage rating: 5.7 V
  • Resistance: 5.7 Ohm per coil
  • Holding torque: 3.9 kg-cm (54 oz-in)
  • Inductance: 5.4 mH per coil
  • Lead length: 30cm
Dimensions:
The following diagram shows the stepper motor dimensions in mm. The output shaft has a 0.25? (6.3 mm) diameter. Though not shown in the diagram, the output is a D-shaft with a section that is flattened by 0.5 mm.
Stepper Motor Applications:
  • Printers
  • CNC machines
  • 3D printer/prototyping machines
  • Laser cutters
  • Pick and place machines
  • Linear actuators
  • Hard drives
Voltage rating (V): 5,7
Holding torque: 38
Current rating (A): 1
Output shaft (mm): 16
Motor length (mm): 40
Leads: 6
Shaft: D-Schaft
NEMA: 23
Steps: 200
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