Zikodrive Motor Controllers - stepper motor drivers, brushless ESCs, bldc motor drivers, stepper motor controllers

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Zikodrive Motor Controllers - stepper motor drivers, brushless ESCs, bldc motor drivers, stepper motor controllers

+44 (0) 333 123 7130

Zikodrive Motor Controllers is a trading name of Round Bank Engineering ltd. Registed Company Number 08288866. VAT Number: GB226504428

NEMA Motor Frame Size Guide for Stepper Motors



FIRST THINGS FIRST

The frame size of motors is used for both stepper motors and brushless DC motors but it is used most commonly with stepper motors as a useful shorthand for power and torque.

Always remember that (within the NEMA sizing system) the length of the motor will vary but the NEMA frame size simply refers to the diameter of the motor face.

Most commonly these faces are square (for example the ZD4N2318 which is a square faced NEMA 23 stepper motor) but in some cases they may be circular.

Frame sizes are split up into NEMA (National Electronic Manufacturers Association) ratings which are a useful shorthand for motor sizes.

DIAMETER ISN’T EVERYTHING WHEN IT COMES TO STEPPER MOTOR POWER

Changing the stack length will generally not impact on the speeds that you can get but it will have a major impact on the torque (turning force) that you are able to achieve.

For example the ZD2N2318 and ZD10N2318 stepper motors are both NEMA 23 motors (therefore 57mm diameter) but the ZD2N2318 is 42mm long whereas the ZD10N2318 is 104 mm long.

The difference in torque between the 2 motors is 0.6Nm for the ZD2N2318 and 2.4Nm for the ZD10N2318. The difference in stack length of a motor with the same NEMA rating has therefore quadrupled the possible torque.

THE STEPPER MOTOR CONTROLLER YOU CHOOSE MATTERS!

Equally the stepper motor controller that you use will have a major impact on the mechanical performance you are able to achieve using the motor. If the controller is not able to deliver more poewr than the motor can handle then it is unlikely that you will be able to achieve the maximum possible mechanical performance from the motor.

As an example of this, our stepper motors with integrated controllers have higher powered controllers the bigger the motors get.

See the table below for an overview of frame sizes.

MOTOR FRAMES AND TYPICAL SPECIFICATIONS FOR STEPPER MOTORS


















WHAT NEXT?

If your interest in motor sizes was purely academic then we hope we have helped. If you have any questions about this please do not hesitate to get in touch and we will do our best to help.

Alternatively if you are looking for a motor and aren’t sure which is best for your application then you could start by having a quick look at our standard range.

We offer a range of stepper motors of different sizes which are available in geared or standard format.

As always, if you have any questions about choosing the right motor or the pros and cons of a long stack NEMA 17 versus a short stack NEMA 23 (for example) then you can get in touch with us via online chat, phone or email.





Return to FAQsStepper Motor Packages

Frame Size

Diameter (mm)

Typical Torque Range  for Stepper (Nm)

Typical Speed Range  for Stepper (RPM)

NEMA 8

20

0.01-0.04

0-1000

NEMA 11

28

0.06-0.12

0-1000

NEMA 14

35

0.05-0.5

0-1000

NEMA 16

39

0.1-0.25

0-1000

NEMA 17

43

0.2-1

0-1000

NEMA 23

57

0.5-3

0-1000

NEMA 24

60

1.2-4.6

0-1000

NEMA 34

86

03/12/2016

0-1000

NEMA 42

102

12-20

0-1000

Why not start by browsing some of the ZD Series Stepper Motors with Stepper Motor Controllers which feature NEMA 17 and NEMA 23 in both standard forms and also as geared stepper motors. If you have any questions about what is the best motor to use in your application you can browse our guide here or CONTACT US to discuss your project with an engineer.

Stepper Motors & DriversChoosing a Motor?ZDBL10 - 10A Brushless ESC or BLDC Motor Driver with Sensorless Brushless Motor Controller using back EMF to maintain constant speed

Frequently Asked Questions

Can I replace a DC motor with a stepper motor?

What are the main advantages of using a stepper motor?

What is the maximum speed I can get with a stepper motor?

What are the typical costs of getting a modified version of a standard Zikodrive Motor Controller?

What do NEMA motor frame sizes actually mean?

Can I add a user interface to an existing stepper motor controller or driver?

What is microstepping?

How much do modified drivers typically cost?

What is a torque speed curve and how do I use it?

Can I achieve a fixed speed under a variable load?

What is the difference between a stepper motor driver and a stepper motor controller?

What is the difference between a single shaft and a double shaft motor?

Browse our stepper motors with integrated controllersNot sure what you need? We can help!