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. Specifications 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 Dimensions 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: Printers CNC machines 3D printer/prototyping machines Laser cutters Pick and place machines Linear actuators Hard drives
