---12V, 1.7A, 667oz-in NEMA-17 Bipolar Stepper Motor

• Bipolar stepper motor with planetary gearbox
• 0.018° step angle and 48 kg·cm of torque at low speeds
• Step accuracy: ± 5 %
• Comes with the rear shaft exposed

The 12V, 1.7A, 667oz-in NEMA-17 Bipolar Stepper Motor has an integrated planetary gearbox with a 99 ¹⁰⁴⁴/₂₀₅₇ :1 ratio. It comes with the rear shaft exposed, so you can mount an encoder or shaft coupler. When connected to a bipolar HC, the motor has a maximum speed of 34 RPM. At the output of the gearbox, the step angle is approximately 0.018°. When using the step angle in calculations, you should derive the exact step angle by dividing 1.8° by the gearbox reduction ratio. At 1.7 Amps, this gearbox stepper can produce a maximum torque of 250 kg-cm.

Note: The 2.8V refers to the phase voltage which is different than the 12V rating we give it. At the end of the day, stepper motors don't have a "Rated Voltage" per se. You can run them at a wide range of different voltages and it will just change the performance of the motor. We recommend that you use this motor at a minimum of 12V but you could run it at 24, or 30 if you wanted to and the motor would simply perform a bit better (require less current for a given speed and torque).