The SM2861-5166 Stepper Motor from Sanyo Denki is a bipolar winding motor with a terminal block type CE/UL model. It has a frame size of 28mm and is made with dynamo windings for low stepping noise, step accuracy and smooth movement. It is equipped with four-phase windings, allowing for high speed and torque control. It is a two-phase hybrid stepper motor, offering high holding torque and high speed capabilities with a high resolution of 1.8 degree/step. This motor is widely used for printing, medical, communication, and other applications. It is UL, CE, and RoHS certified and designed for efficient power consumption.