Question

What is a NEMA bipolar stepper motor (42 stepper motor)? NEMA17 stepper motor refers to 42 stepper motor?

Answer 1

NEMA Bipolar Stepper Motor (42 Stepper Motor)

NEMA is an abbreviation for the National Electrical Manufacturers Association in the United States. Although the association is an American association, the standards set by NEMA have gradually become the standard used worldwide. 

However, the units used in the standards developed by the National Electrical Manufacturers Association are imperial units and not internationally accepted metric units.

In 1984, the National Electrical Manufacturers Association (NEMA) developed a series of standards based on motor size. 

This set of standards is still in use today. This set of standards specifies the standard requirements for motors such as "NEMA 17" and "NEMA 23".

Today, NEMA17 stepper motor has become a very popular stepper motor. This is very evident in the field of 3D printers. 

However, the name NEMA17 also creates a lot of confusion. The 17 in NEMA17 refers to the motor base size is 1.7 inches (about 42 mm, so the NEMA17 stepper motor is also often referred to as a 42 stepper motor). 

The number 17 has nothing to do with the operating voltage, current, step angle or polarity of the motor. Correspondingly, the number 23 in NEMA23 refers to the motor base size of 2.3 inches, and so on.

To learn how to control NEMA motors with Ardino, see Arduino Driving NEMA Bipolar Stepper Motors.

So, NEMA 17 stepper motor refers to 42 stepper motor.

Comments

What is a bipolar stepper motor? What are the application features?

Bipolar stepper motors are so named because each winding can be energized in both directions. Therefore, each winding can be both N and S. poles. It is also called a single-winding stepper motor because there is only a single winding per pole, and it is also called a two-phase stepper motor because it has two separate coils. Bipolar stepper motors have four leads, two for each winding. Compared to unipolar stepper electrodes of the same size and weight, bipolar stepper motors have greater drive capacity because the field strength in their magnetic poles (not a single coil with an intermediate tap) is twice that of unipolar stepper motors.

Answer 2

The company is a professional engaged in the R & D and production and processing of stepping linear stepper motor manufacturers, with strong R & D strength and technical service capabilities, long-term commitment to provide customers with a variety of products, and provide system design solutions. 

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