Stepper Motor: Bipolar, 200 Steps/Rev, 28×32mm, 3.8V, 0.67 A/Phase

Overview

This hybrid bipolar stepping motor has a 1.8° step angle (200 steps/revolution). Each phase draws 670 mA at 3.8 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 or one of our Tic Stepper Motor Controllers. In particular, the Tics make control easy because they support six different interfaces (USB, TTL serial, I²C, RC, analog voltages, and quadrature encoder) and are configurable over USB with our free configuration utility.

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 x 32 mm, not including the shaft (NEMA 11)

• Weight: 110 g (4 oz)

• Shaft diameter: 5 mm "D"

• Steps per revolution: 200

• Current rating: 670 mA per coil

• Voltage rating: 3.8 V

• Resistance: 5.6 Ω per coil

• Holding torque: 600 g-cm (8.3 oz-in)

• Inductance: 4.2 mH per coil

• Lead length: 30 cm (12")

• Output shaft supported by two ball bearings

Bipolar stepper motor wires are terminated with bare leads.

Bipolar stepper motor wiring diagram.

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

The inside of a bipolar stepper motor (SOYO NEMA 14-size).