’23’<\/strong> refers to the faceplate size in 1\/10 of an inch. This means that a NEMA 23 stepper motor has a mounting face measuring 2.3 inches by 2.3 inches (or approximately 57 mm by 57 mm if you prefer metric measurements).<\/p>\nIt also indicates the mounting hole pattern, making it easier to swap motors across different brands.<\/p>\n
\ud83d\udee0 Side note:<\/strong> People often assume that a larger motor is always stronger. Not quite. The actual power depends on the internal construction, such as windings and magnet type, not just the size of the frame.<\/p>\n<\/span>Dimensions, mounting and shaft details<\/span><\/h3>\nIf you\u2019re planning to bolt one of these motors into a machine or project box, you\u2019ll need to know the physical details.<\/p>\n
Mounting:<\/strong> Most NEMA 23 motors share a standard hole pattern of four mounting holes spaced 47.14 mm apart centre-to-centre. The motor itself is square, so orientation isn\u2019t usually an issue.<\/p>\nLength:<\/strong> This varies. A ‘short’ NEMA 23 motor might be just 1.5 inches deep, while a longer one can exceed 3 inches. More depth often means more torque, but also more weight and heat.<\/p>\nShaft types:<\/strong> There are two common variations:<\/p>\nSingle shaft (one end only):<\/strong> Simple and compact for most applications.<\/p>\nDouble shaft (both ends):<\/strong> Useful if you need to attach an encoder or manual knob to the back.<\/p>\nThe shaft ends may be round or flat-sided (D-shaft), or keyed for couplers. Always double-check this before ordering, as some setups require a flat side to avoid slipping.<\/p>\n
Pro tip:<\/strong> Some cheaper models skimp on tolerances. For example, a shaft that’s technically 6.35 mm might not fit your coupler if it\u2019s off by even 0.1 mm. When in doubt, go with a trusted supplier.<\/p>\n<\/span>Key electrical specifications explained<\/span><\/h3>\nThis is where the real performance information is found. Don\u2019t worry, though \u2014 we\u2019ll keep it plain and simple.<\/p>\n
Step angle:<\/strong> Most NEMA 23 motors have a step angle of 1.8\u00b0, which means 200 steps per full revolution. With a decent driver using microstepping, you can achieve incredibly smooth motion.<\/p>\nVoltage and current<\/strong> don’t mean the same thing here as they do in a light bulb. For stepper motors:<\/p>\nThe current rating (in amps)<\/strong> tells you how much power it draws per coil.<\/p>\nVoltage rating<\/strong> is more of a guideline \u2014 most modern drivers use higher voltages for better performance.<\/p>\nTorque:<\/strong><\/p>\nHolding torque<\/strong> is the force that the motor can resist when powered but not turning. It’s similar to how difficult it would be to twist the shaft manually.<\/p>\nRunning torque<\/strong> decreases slightly as speed increases. Always check the torque curve for an indication of real-world performance.<\/p>\n\u26a1 Quick reminder:<\/strong> Just because a motor says it can handle 3A doesn\u2019t mean you should supply 3A to it continuously without considering heat build-up. Always consider cooling and duty cycle.<\/p>\n<\/span>Comparing NEMA 23 to other sizes:<\/span><\/h3>\nThis is where the NEMA 23 size finds its sweet spot: big enough for real power, but small enough to remain practical.<\/p>\n
Compared to NEMA 17:<\/strong><\/p>\nNEMA 17s are ideal for light-duty tasks such as 3D printer extruders or small robotic arms.<\/p>\n
NEMA 23s offer a significant torque increase, making them ideal for heavier loads or precision work under stress.<\/p>\n
Compared to NEMA 34:<\/strong><\/p>\nNEMA 34 motors have a lot of torque, but they are bigger, heavier and usually have higher power demands.<\/p>\n
Unless you\u2019re working with a full industrial rig, NEMA 23 motors tend to offer the perfect balance of performance and ease of use.<\/p>\n
<\/span>So, when is NEMA 23 the best choice?<\/span><\/h3>\nWhen you need moderate-to-high torque, smooth motion and a size that can still fit into compact projects, NEMA 23 delivers without overcomplicating things.<\/strong><\/p>\n<\/span>Applications and use cases<\/span><\/h2>\n<\/span>Quick recap before we move on:<\/span><\/h3>\nBy now, you should have a solid grasp of what a NEMA 23 motor actually is, including its naming origins, physical dimensions, electrical characteristics and how it compares to other motor sizes. If you were feeling unsure about whether this motor fits your needs, hopefully things are starting to fall into place (pun intended).<\/p>\n
Now that you know the ‘what’, let’s talk about the ‘where’. The NEMA 23 is not just a specification on a datasheet; it is the workhorse behind all kinds of machines that you see in workshops, factories and even art studios. Whether you\u2019re building your first CNC router or retrofitting an old system, you’ll find this motor is used more often than you might expect.<\/p>\n
<\/span>CNC machines and 3D printers<\/span><\/h3>\nIt’s no exaggeration \u2014 NEMA 23 is the go-to choice<\/strong> for DIY and semi-professional CNC machines and 3D printers. And it\u2019s not just because people like the sound of \u201c23\u201d.<\/p>\nSo, why is it so popular?<\/strong> The real reason is torque. Compared to NEMA 17 motors, NEMA 23 motors deliver more force to drive gantries, lead screws or belts, which is especially useful when cutting tougher materials such as wood, aluminium or acrylic.<\/p>\nPrecision in motion:<\/strong> Pair a NEMA 23 motor with microstepping drivers and you will achieve incredibly fine resolution without compromising stability. This is important for CNC engraving, PCB milling and high-detail 3D printing.<\/p>\nDIY-friendly:<\/strong> Hobby builders will love NEMA 23 because there are lots of brackets, mounts, and couplers designed specifically for it. There’s no need to reinvent the wheel \u2014 or worse, drill new holes in your frame.<\/p>\n\ud83d\udee0\ufe0f Heads-up for builders:<\/strong><\/p>\nIf your machine has long axis runs or heavier components, NEMA 23 motors can help to avoid skipped steps and ensure that your workpiece is clean and accurate. Just make sure your driver can handle the motor\u2019s current rating and you’re ready to start building.<\/p>\n
<\/span>Robotics and Automation Projects<\/span><\/h3>\nRobots aren\u2019t just a thing of science fiction anymore \u2014 they\u2019re in homes, labs and factories. And surprise: NEMA 23 motors are often at the heart of their movement.<\/p>\n
Repetitive tasks? No problem!<\/strong> These motors excel at performing the same motion repeatedly without losing position. This is why they are ideal for pick-and-place machines, linear actuators and sorting arms.<\/p>\nThey are stable and accurate.<\/strong> In robotic arms or precision motion rails, a NEMA 23 motor can maintain position without the need for complex feedback systems.<\/p>\nKnow your limits:<\/strong> If your robot needs to move very quickly or change direction rapidly, stepper motors may struggle to keep up. NEMA 23 motors aren\u2019t designed for lightning speed, but they excel in controlled, accurate motion.<\/p>\n\ud83d\udd04 Reality check:<\/strong><\/p>\nDon\u2019t expect them to replace high-end servo systems in cutting-edge automation lines. But if you’re looking to build something functional and reliable on a reasonable budget, they’re a great choice. They’re a rock-solid choice.<\/p>\n
<\/span>Industrial equipment and factory use<\/span><\/h3>\nYes, NEMA 23 is used in high-end applications too. You\u2019ll find them in labelling machines, conveyor systems and automated testers \u2013 basically anywhere steady, reliable motion is needed.<\/p>\n
Built for the long haul:<\/strong> When paired with the right driver, NEMA 23 motors can run for hours without missing a beat. They have been used in packaging lines, assembly machines and even textile equipment.<\/p>\nHeat matters:<\/strong> In setups where they are used constantly, thermal management becomes critical. Mounting the motor to a metal frame (which acts as a heat sink) and ensuring adequate airflow can significantly extend its lifespan.<\/p>\nThe driver\/controller combination is essential:<\/strong> Don\u2019t cut corners here. A poor-quality driver can lead to jerky motion, overheating or even premature motor failure. Choose a driver that supports the motor\u2019s rated current and you’ll avoid most problems.<\/p>\n\ud83d\udce6 Bottom line:<\/strong><\/p>\nFor industrial use, NEMA 23 isn\u2019t always the most powerful option, but for small-to-mid-scale automation, it strikes a good balance between performance, cost and reliability.<\/p>\n
<\/span>Niche or hobbyist projects worth mentioning:<\/span><\/h3>\nThis is where things get fun! You might be surprised at how many creative people are finding new ways to use NEMA 23 motors.<\/p>\n
Camera gear:<\/strong> Motorised camera sliders, pan-tilt heads and stop-motion rigs often rely on NEMA 23s for smooth, controlled movement.<\/p>\nMusical installations:<\/strong> Think spinning drums, kinetic sculptures and synchronised instruments. Artists love the precision and repeatability that these motors offer.<\/p>\nOther cool uses:<\/strong> From motorised blinds and automated greenhouses to chess-playing robots \u2014 if an object needs to move and you don’t want it to drift off course, a NEMA 23 motor is a reliable choice.<\/p>\n\ud83c\udfa8 Creative tip:<\/strong><\/p>\nFor hobbyists, the challenge often lies in space and power supply. Keep your wiring tidy, choose a driver that supports microstepping and share your project to keep the flow of new ideas going.<\/p>\n
Quick recap:<\/strong><\/p>\nSo far, we\u2019ve explored the areas in which NEMA 23 motors excel, from DIY CNC projects to industrial conveyor belts and creative hobbyist endeavours. One thing is clear no matter the setting: this motor is popular because it is reliable, versatile and the right size for a huge range of motion control applications.<\/p>\n
Now that you\u2019ve seen how and where it\u2019s used, let\u2019s talk about something else that’s important: how to choose the right NEMA 23 motor for your needs.<\/p>\n
<\/span>Choosing the right NEMA 23 stepper motor<\/span><\/h2>\nSelecting a NEMA 23 motor isn\u2019t as simple as buying the first one you find online and hoping it fits. With a little planning, you can avoid underpowered motion, overheating or compatibility issues. Let’s walk through what to look for without getting buried in the technical specifications.<\/p>\n
<\/span>How to Match Motor Specs to Project Requirements<\/span><\/h3>\nStart with the load.<\/strong><\/p>\nThe first thing to determine is how much torque your motor needs to effectively move the load. This depends on:<\/p>\n
\n- the weight of your moving parts<\/li>\n
- friction in your system (e.g. belts, lead screws or gears)<\/li>\n
- and the speed at which you want things to move.<\/li>\n<\/ul>\n
If you are building a CNC machine or a 3D printer with heavy gantries, you will need a motor with a higher holding torque, usually in the range of 1.2 to 3.0 Nm. Light-load applications, such as small linear actuators, may be able to manage with less.<\/p>\n
There\u2019s a trade-off between speed and precision.<\/strong><\/p>\nIn general, the faster you run your stepper, the less torque it will deliver. This is normal, but it means you need to find the right balance depending on your goal.<\/p>\n
Need high speed?<\/strong> Consider a lower step angle or fewer microsteps, but be aware of torque drop-off.<\/p>\nNeed high precision?<\/strong> Use microstepping, but be aware that you\u2019ll sacrifice some torque at higher speeds.<\/p>\nDon’t guess when it comes to voltage and current.<\/strong><\/p>\nCurrent (amps) is key for torque. Your motor and driver should both be rated for similar current levels. Running a motor below its rated current may result in reduced power, while overdriving it can cause overheating.<\/p>\n
Voltage mostly affects how quickly the motor can react. Many modern setups run NEMA 23 motors at 24V or even 48V, despite what the datasheet says. This is perfectly normal as long as the driver can handle it safely.<\/p>\n
\ud83d\udca1Side note:<\/strong> you don’t need a maths degree to figure this out. Just check your project’s weight, expected speed and available power, then look for a suitable motor. You’ve got this!<\/p>\n<\/span>Drivers and controllers that pair well<\/span><\/h3>\nThe motor is only half the story \u2014 the driver actually sends the pulses that make it move.<\/p>\n
Popular driver options:<\/strong><\/p>\n\n- TB6600:<\/strong> a great budget choice for simple setups. Handles up to 4A. Easy to wire.<\/li>\n
- DM542:<\/strong> a more advanced driver offering smoother microstepping and better torque curves.<\/li>\n
- TMC5160 or similar:<\/strong> These newer chips are impressive if you want ultra-silent motion.<\/li>\n<\/ul>\n
<\/span>Microstepping settings:<\/span><\/h3>\nMicrostepping divides each full step into smaller steps, which is great for smooth motion and better positioning. A setting of 1\/8 or 1\/16 microstepping is ideal for most setups. Remember, though, that more microsteps mean less torque at high speed.<\/p>\n
<\/span>The power supply matters:<\/span><\/h3>\nMatch the voltage and amperage of your power supply to the needs of your system.<\/p>\n
\n- Leave some headroom \u2014 don’t run a 3 A supply at exactly 3 A all day.<\/li>\n
- Use fuses or circuit breakers for safety, especially if you\u2019re building a 24\/7 system.<\/li>\n<\/ul>\n
Pro tip:<\/strong> always double-check the polarity and current settings before turning anything on. A reversed wire or an overloaded driver can destroy a motor instantly \u2013 and nobody likes the smell of burnt coils.<\/p>\n<\/span>Mistakes to Avoid When Buying or Using NEMA 23<\/span><\/h3>\nEven seasoned builders make a few of these mistakes. Here\u2019s what to watch out for:<\/p>\n
\n- Skipping the torque curve:<\/strong> Just because a motor says ‘2.4 Nm’ doesn’t mean you’ll get that at high speeds. Always check the torque versus RPM graph to ensure it meets your requirements.<\/li>\n
- Ignoring heat and mounting:<\/strong> Stepper motors get hot \u2013 sometimes very hot. Always mount them to a metal surface or use a heatsink plate. Mounting them to plastic or enclosing them tightly will cause problems.<\/li>\n
- Driver mismatch:<\/strong> Not all drivers are created equal. Using a driver that cannot deliver the required current or does not support microstepping can cause even a great motor to perform poorly.<\/li>\n
- Skipping testing:<\/strong> Don\u2019t wait until the motor is buried in a frame to test it. Always perform a bench test first to check direction, torque, noise and temperature.<\/li>\n<\/ul>\n
If something doesn\u2019t feel right, stop and check it. It\u2019s much cheaper to troubleshoot early than to burn out components.<\/p>\n