Nema 17 Stepper Motor

NEMA 17 stepper motors with a standard frame size of 42 x 42 mm is widely used in both hobbyist and industrial applications due to its moderate size, reliable performance, and ease of integration into a wide range of devices. It is widely used in 3D printers, CNC machines, robotics, laser engravers, automated systems, and consumer electronics, where accurate and repeatable motion is crucial. The step angle for NEMA 17 motors is typically 1.8 degree, but stepper motor with a step angle of 0.9° is more precise than the typical 1.8° stepper motor. NEMA 17 size motors typically offer a holding torque between 20 to 80 oz-in (0.14 to 0.56 Nm). NEMA 17 motors are also available in both bipolar and unipolar configurations. Bipolar motors have four wires (two phase), while unipolar motors have six wires (three phase).

The NEMA17 motor's balanced performance, widespread availability, and relatively low cost make it suitable for many industries, from hobbyists to industrial applications. However, for heavy-duty or high-speed requirements, larger motors such as NEMA 23 or DC motors might be more suitable. NEMA 17 motors provide a balance of size, torque, and precision, making them suitable for a wide range of applications. They are not too large but powerful enough for most medium-duty tasks. While the NEMA 17 motor provides moderate torque, it may not be suitable for heavy-duty applications that require high power or continuous heavy load handling. In such cases, larger step motors like NEMA 23 may be required. When choosing Nema 17 stepping motors, you should take these factors into consideration such as frame size, step angle, holding torque, voltage and current and bipolar or unipolar according to your project.