The SP2563-5260 with Stepper Motors is a two-phase stepping motor with a single shaft, 56mm square, and 1.8 degree/step. It is bipolar, lead wire type, with a rated torque of 1 Nm, power of 30W, 3A, resistance of 0.75 ohm, inductance of 3.4mH. It is certified CE, UL, and IP65 for shock and water resistance. It is manufactured by Sanyo Denki, a Japanese company.