Stepper Motor: Unipolar/Bipolar, 200 Steps/Rev, 42×48mm, 4V, 1.2

Description

This hybrid stepper motor has a 1.8° step angle (200 steps/revolution). Each phase draws 1.2 A at 4 V, allowing for a holding torque of 3.2 kg-cm (44 oz-in). The motor has six color-coded wires terminated with bare leads that allow it to be controlled by both unipolar and bipolar stepper motor drivers. When used with a unipolar stepper motor driver, all six leads are used. When used with a bipolar stepper motor driver, the yellow and white center tap wires can be left disconnected (the red-blue pair gives access to one coil and the black-green pair gives access to the other coil). We recommend using it as a bipolar stepper motor. Specifications Size: 42.3 mm square × 48 mm, not including the shaft (NEMA 17) Weight: 350 g (13 oz) Shaft diameter: 5 mm “D” Steps per revolution: 200 Current rating: 1.2 A per coil Voltage rating: 4 V Resistance: 3.3 Ohm per coil Holding torque: 3.2 kg-cm (44 oz-in) Inductance: 2.8 mH per coil Lead length: 30 cm (12 in) Dimensions The following diagram shows the stepper motor dimensions in mm. The dimension labeled “length” is 48 mm. The output shaft has a length of 24 mm and a diameter of 5 mm, and it works with our 5mm universal mounting hub . Though not shown in the diagram, the output is a D-shaft with a section that is flattened by 0.5 mm. This is a NEMA 17-size motor. The inside of a bipolar stepper motor. 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