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 dimension diagram above 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.

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