Stepper Motor: Unipolar/Bipolar, 200 Steps/Rev, 57x76mm, 4.5V, 2 A/Phase
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- Hersteller: Pololu
- Artikel-Nr.: EXP-R25-207
- Herstellernummer: 1475
- Herkunftsland: CN
- Zolltarifnummer: 85011099
- Gewicht (kg): 1
This high-torque hybrid stepping motor has a 1.8° step angle (200 steps/revolution). Each phase... mehr
This high-torque hybrid stepping motor has a 1.8° step angle (200 steps/revolution). Each phase draws 2 A at 4.5 V, allowing for a holding torque of 14 kg-cm (190 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 × 76 mm, not including the shaft (NEMA 23)
- Weight: 1 kg (35 oz)
- Shaft diameter: 1/4? (6.35 mm) ?D?
- Steps per revolution: 200
- Current rating: 2 A per coil
- Voltage rating: 4.5 V
- Resistance: 2.25 Ohm per coil
- Holding torque: 14 kg-cm (190 oz-in)
- Inductance: 3.6 mH per coil
- Lead length: 30cm
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.

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
Haltemoment (N-cm): | 135 |
Spannung (V): | 4,5 |
Strom (A): | 2 |
Motorlänge (mm): | 76 |
Schaftlänge (mm): | 20 |
Leitungen: | 6 |
Schaftform: | D-Schaft |
NEMA: | 23 |
Schritte: | 200 |
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