What Is A NEMA 8 Stepper Motor

Stepper motors are essential components in various industrial and commercial applications, providing precise control of motion. One specific type, the NEMA 8 stepper motor, stands out for its compact size and impressive performance. In this article, we will delve into the dimensions, specifications, and features of the NEMA 8 stepper motor in SIT, which can help you gain a comprehensive understanding of its capabilities.

 

I NEMA 8 Stepper Motor Dimension

The NEMA (National Electrical Manufacturers Association) classification is a standard for stepper motor sizes, and the NEMA 8 designation refers to a specific size range.  NEMA 8 stepper motor has a frame size of 20mm x 20mm, which is one of the smallest stepper motors in SIT. They are available in single shafts and dual shafts.

 

 

 

 

II NEMA 8 Stepper Motor Specifications

1. Torque Ratings

The NEMA 8 stepper motors in SIT come in various torque ratings, typically ranging from a to 0.01Nm/1.4oz-in to 0.048Nm/6.7oz-in. The torque produced by these motors is crucial for applications requiring precise angular positioning or rotational movements.

 

2. Rated Voltage and Current

The NEMA 8 Stepper Motors in SIT are available in various voltage, rated at 3.6V, 4.4V, 4.8V, 6V, 7.2V, 8.1V. And the rated currents of NEMA 8 stepper motor is 0.2A and 0.6 A.

 

3. Body length

The standard type NEMA 8 stepper motors in SIT are available in six body length, from the minimum 24mm NEMA 8 stepper motor with 0.0.4kg weight to the maximum 48mm NEMA 8 stepper motor with 0.11kg weight.

 

4. Step Angle and Resolution

One of the defining characteristics of stepper motors is their step angle, which is the angle the motor shaft rotates for each step. NEMA 8 stepper motors in SIT commonly have step angles of 1.8 degrees per step, providing a good balance between precision and speed. The step angle determines the motor's resolution, influencing its ability to move in small increments. This high resolution makes NEMA 8 stepper motors suitable for applications demanding accurate and fine movements.

5. Coil Configuration

NEMA 8 stepper motors in SIT feature a variety of coil configurations, including bipolar and unipolar designs. The choice between bipolar and unipolar configurations depends on the specific application requirements. Bipolar motors are known for their higher torque output, making them suitable for applications where power is a priority. Unipolar motors, on the other hand, are often preferred for applications where simplicity and ease of control are paramount.

 

III NEMA 8 Stepper Motor Features

1. Compact Design

The compact design of NEMA 8 stepper motors is a standout feature, allowing them to fit into tight spaces without sacrificing performance. This characteristic makes them invaluable in applications such as miniature robotics, camera systems, and medical devices where size constraints are critical.

 

2. Precise Positioning

NEMA 8 stepper motors excel in providing precise positioning, making them ideal for applications that require accurate control of movement. The high step resolution allows for smooth and controlled motion, ensuring that the motor can stop at specific angles or positions with minimal error. This precision is particularly beneficial in applications like CNC machines, where accurate tool positioning is essential for machining tasks.

 

3. Versatility

Despite their small size, NEMA 8 stepper motors exhibit remarkable versatility. They can be found in a wide range of applications, including 3D printers, camera gimbals, automated test equipment, and even consumer electronics. Their adaptability stems from their ability to deliver reliable performance in various environments and operational conditions.

4. Cost-Effective Solution

NEMA 8 stepper motors offer a cost-effective solution for applications that require precise motion control without breaking the bank. The affordability of these motors, coupled with their performance characteristics, makes them an attractive choice for budget-conscious projects and applications.

 

5. Low Maintenance

Stepper motors, in general, are known for their low maintenance requirements, and NEMA 8 stepper motors are no exception. Their simple design, with fewer moving parts compared to other motor types, contributes to their reliability and longevity. This low maintenance requirement is advantageous in applications where frequent maintenance is impractical or costly.

Conclusion

In conclusion, the NEMA 8 stepper motor represents a remarkable combination of compact design, precise control, and versatility. Its small size does not compromise its performance, making it an excellent choice for applications where space is limited. SIT as one of the largest stepper motor suppliers in China, we are always trying to offer high-quality stepper motor and good service to our clients. Just tell us your needs, and our R&D team will find the best solution for you.