Stepper Motor: Bipolar, 200 Steps/Rev, 28×45mm, 4.5V, 0.67 A/Phase

This hybrid bipolar stepping motor has a 1.8° step angle (200 steps/revolution). Each phase draws 670 mA at 4.5 V, allowing for a holding torque of 950 g-cm (13 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.

Our 5 mm universal mounting hub can be used to mount objects on the stepper motor’s 5 mm-diameter output shaft.

Specifications

• Size: 28 mm square × 45 mm, not including the shaft (NEMA 11)
• Weight: 140 g (5 oz)
• Shaft diameter: 5 mm “D”
• Steps per revolution: 200
• Current rating: 670 mA per coil
• Voltage rating: 4.5 V
• Resistance: 6.8 Ω per coil
• Holding torque: 950 g-cm (13 oz-in)
• Inductance: 4.9 mH per coil
• Lead length: 30 cm (12″)
• Output shaft supported by two ball bearings

Dimensions

The following diagram shows the stepper motor dimensions in mm. The dimension labeled “Length” is 45 mm. The output shaft has a length of 20 mm and a 5mm diameter with a section that is flattened by 0.5 mm. This shaft works with our 5 mm universal mounting hub.