This small hybrid bipolar stepping motor has a 1.8° step angle (200 steps/revolution). Each phase draws 600 mA at 3.9 V, allowing for a holding torque of 180 g-cm (2.5 oz-in). With a weight of 60 g, this is the smallest stepper motor we carry.
Compare all products in Stepper Motors.
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| Bipolar stepper motor wires are terminated with bare leads. |
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| Bipolar stepper motor wiring diagram. |
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Overview
This small hybrid bipolar stepping motor has a 1.8° step angle (200 steps/revolution). Each phase draws 600 mA at 3.9 V, allowing for a holding torque of 180 g-cm (2.5 oz-in). The motor has four color-coded wires terminated with bare leads. Our 4mm universal mounting hub can be used to mount objects on the stepper motor’s 4mm-diameter output shaft.
Specifications
- Size: 20 mm square x 30 mm, not including the shaft (NEMA 8)
- Weight: 60 g (2 oz)
- Shaft diameter: 4 mm
- Steps per revolution: 200
- Current rating: 600 mA per coil
- Voltage rating: 3.9 V
- Resistance: 6.5 Ohm per coil
- Holding torque: 180 g-cm (2.5 oz-in)
- Inductance: 1.7 mH per coil
- Lead length: 12 in
Dimensions
The following diagram shows the stepper motor dimensions in mm. The dimension labeled “Length” is 30 mm. The output shaft has a length of 15 mm and a diameter of 4 mm.
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| The inside of a bipolar stepper motor. |
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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
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| Bipolar stepper motors; from left to right: 20×30, 28×32, 28×45, 35×26, 35×28, 35×36mm. |
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