This hybrid bipolar stepping motor has a 1.8° step angle (200 steps/revolution). Each phase draws 670 mA at 3.5 V, allowing for a holding torque of 600 g-cm (8.3 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.
The 5mm universal mounting hub can be used to mount objects on the stepper motor’s 5mm-diameter output shaft.
- Size: 28 mm square x 32 mm, not including the shaft (NEMA 11)
- Weight: 110 g (4 oz)
- Shaft diameter: 5 mm
- Steps per revolution: 200
- Current rating: 670 mA per coil
- Voltage rating: 3.8 V
- Resistance: 5.6 Ohm per coil
- Holding torque: 600 g-cm (8.3 oz-in)
- Inductance: 4.2 mH per coil
- Lead length: 12 in
The following diagram shows the stepper motor dimensions in mm. The dimension labeled “Length” is 32 mm. The output shaft has a length of 20 mm and a diameter of 5 mm. 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
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:
- CNC machines
- 3D printer/prototyping machines
- Laser cutters
- Pick and place machines
- Linear actuators
- Hard drives
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