Tag Archives: nema 8 stepper motor

China Mini Planetary Gearbox Stepper Motor with NEMA 8

Product Description


Product Description

Planetary Gear Stepping Motor :
Precision high-end upgrade with Nema8, Nema 11, Nema14, Nema 17, Nema23, Nema 24 
stepper motor; low noise, low vibration, firm and durable. Increase torque at low speed.
Reduction ratio:1:3.7 , 1:5.2 , 1:14 , 1:19 ,1:27 ,1:51 , 1:71 ,1:100 ,1:139 , 1:189 ,1:264 , 1:369 ,And 48 hours delivery , in stock .

Automation control, medical equipment, textile machinery,and packaging machinery fields. Not only in the field of the automation industry, it also has a good use status in the home.   Products with low speed and inertia are often seen: electric curtains, electric shutters, etc.

Product Parameters

Planetary Gear Box Specification:

Housing Material Metal
Bearing at Output Ball Bearings
Max.Radial Load(10mm from flange) 50N
Max.Shaft Axial Load 30N
Radial Play of Shaft (near to Flange) ≤0.08mm
Axial Play of Shaft ≤0.3mm
Backlash at No-load 1 stage≤1°,2stage≤1.2°,3stage≤1.5°

20HS Hybrid Stepping Motor Specifications:

Model No. Step Angle Motor Length(L1) Rated Current Resistance Inductance Holding Torque # of Leads Rotor Inertia Mass Max.Gear Ratio
Voltage /Phase /Phase /Phase
Single Shaft ( °) (L)mm V A Ω mH mN.m No. g.cm2 Kg  
20HS1405 1.8 30 3.25 0.5 6.5 1.5 15 4 2 0.06 ≤1:369
20HS6401 1.8 41 4.4 0.8 5.5 1.5 30 4 3 0.1 ≤1:369

20HS1450 Planetary Gearbox Motor Specifications:

Reduction ratio 3.71 5.18 14 19 27 51 71 100 139 189 264 369
Total Height(L1+L2) (mm) 53.4 53.4 60 60 60 66.4 66.4 66.4 66.4 72.8 72.8 72.8
Output torque ( mN.m) 50 70 170 231 328 558 777 1095 1522 1871 2000 2000
Total Weight(g) 91 91 97 97 97 103 103 103 103 109 109 109
Number of gear trains 1 2 3 4
Reducer Length(L2)   (mm) 23.4 30.0 36.4 42.8
Efficiency 90% 81% 73% 66%

20HS6401 Planetary Gearbox Motor Specifications:
Reduction ratio 3.71 5.18 14 19 27 51 71 100 139 189 264 369
Total Height(L1+L2) (mm) 64.4 64.4 71 71 71 77.4 77.4 77.4 77.4 83.8 83.8 83.8
Output torque ( mN.m) 100 140 340 462 656 1117 1555 2000 2000 2000 2000 2000
Total Weight(g) 131 131 137 137 137 143 143 143 143 149 149 149
Number of gear trains 1 2 3 4
Reducer Length(L2)   (mm) 23.4 30 36.4 42.8
Efficiency 90% 81% 73% 66%


Detailed Photos


Company Profile

ZheJiang UMot Technology Co., Ltd. specializes in R&D and sales of stepper motors, servo motors, linear modules and related motion control products, customizing and designing high-quality motor products for users with special needs around the world, and providing overall solutions for motion control systems. Products are exported to more than 30 countries and regions including the United States, Germany, France, Italy, Russia, and Switzerland. The company’s main products and system design have been widely used in automation control, precision instruments, medical equipment, smart home, 3D printing and many other fields.
Our company has been recognized as a high-tech enterprise by relevant departments, has a complete quality management system, has obtained ISO9001, CE, RoHs and other related certifications, and holds a number of electrical patent certificates. “Concentration, Professionalism, Concentration” in the field of automation of motor R&D and system control solutions is the company’s business purpose. “Be your most trusted partner” is the company’s service philosophy. We have always been aiming to “make first-class products with professional technology”, keep pace with the times, innovate constantly, and provide more users with better products and services.


1. Shipping method:
1)International Express delivery DHL&FEDEX &UPS&TNT& 7-10days
2)Shipping by air 7-10 days
3)shipping by sea, delivery time depends on the destination port.

2. Technical Support:
We can provide you with professional technical support. And our products quality guarantee is 6 months. Also, we accept products customized.

3. Why should you buy from us, not from other suppliers?
Professional one-to-1 motor customized. The world’s large enterprise of choice for high-quality suppliers. ISO9001:2008 quality management system certification, through the CE, ROHS certification.

4. How to select models?
Before purchasing, please contact us to confirm model No. and specifications to avoid any misunderstanding.

5. Are you a factory?
Yes, we are a factory, and we produce stepper motor/driver, Servo motor/driver.


The Basics of a Planetary Gearbox

The basic model of a planetary gearbox is a highly efficient transmission that transmits nearly 90 percent of the power it receives. The basic planetary gearbox comes in 3 basic types: Inline, Helical, and Spur. Below, we will discuss the differences between each of them and which 1 is better for your needs. A planetary gearbox is an important part of any engine and may be the perfect choice for your vehicle.

Inline planetary gearbox

An inline planetary gearbox has an inline arrangement of gears that enables the transfer of power. Its design makes it stable and reliable, and the space and weight-saving benefits make it a popular choice for many applications. Planetary gearboxes have low inertia, high torque, and a wide range of reduction ratios, which make them a versatile choice for many industries. To find out more about this type of gearbox, read about its construction and specifications.
A planetary gearbox is composed of 2 parts: a sun gear (also called the central or input gear), and 2 planet gears (also called outer gears). These gears are connected to each other via a carrier. In order to get the best performance from your gearbox, it’s important to find a model with the features and benefits required for your application. Also, be sure to check out the delivery time, global availability, and customer service of your selected constructor. A few constructors are faster than others and have the ability to respond quickly, while others can deliver every single planetary gearbox out of stock.
Whether you’re using an inline planetary gearbox for your car’s transmission, or you’re building a new machine, it’s important to choose the right size for your application. The most common ratio is five:1, but an inline gearbox can be as high as 1000:1! The torque range is between 250-950 lb-in for continuous torque, and up to 5800 lb-in for yield torque. Some companies even offer custom shafts if you need them to fit a specific application.
Inline planetary gearboxes have a high ratio of helical rotation and are useful for applications where space is limited. Their low-backlash design allows them to handle high torques and high accelerations without backlash. Despite their compact size, planetary gear systems also have high single-stage reduction ratios, a feature that makes them ideal for a variety of industrial applications. They can also be connected for high reduction ratios.
An inline planetary gearbox can be used in many applications, from small tools to heavy industrial machinery. Its basic design includes 3 components: an input gear pair, an output gear pair, and a stationary position. Some planetary gearbox designs also include additional gear sets that can provide a slight offset between input and output. A planetary gearbox may also contain multiple bearings, which make the assembly more robust and reliable.
Inline planetary gear reducers are commonly used in industrial settings to slow down an electric motor. They are able to multiply torque, which means they can reduce the input speed to a level where the mechanical devices inside the motor can function properly. This type of gear reducer also has a low clearance, which makes it ideal for machines with high torque. However, you should consider the amount of torque required in your application before you make a purchase.

Helical planetary gearbox

A helical planetary gearbox is a type of mechanical system. The gears are connected by joints to the carrier that holds the planets stationary. The sun gear serves as an input to the other gears, and the planet gears rotate at a rate that depends on the number of teeth in each gear. The ratio between these gears is -Ns/Np, and the number of teeth in the ring is N r, N s, and N p.
Another type of planetary gearbox uses multiple helical axes to distribute the load. This design also offers high stiffness and low backlash, which is important for applications involving frequent start-stop cycles and rotational direction changes. It also features a compact design and low mass inertia. A helical planetary gearbox can be used for a wide range of applications. Listed below are some of the benefits of helical gear technology.
The basic design of a helical planetary gear is based on the principle of stepping planets. This concept eliminates the need for timing marks and restrictive assembly conditions. The planetary gear’s helical shape can be modified to achieve a greater transmission ratio in an equal or smaller volume. For example, a 50-T ring gear will yield the same effect as a 100-T ring gear.
In addition to the helical axis, a helical planetary gearbox also has a wide variety of secondary features that are critical to torque transmission. For instance, compact needle roller bearings are appropriate for a helical planetary gearbox because of their low-profile design and small space. However, a tapered roller bearing is better suited to handling high axial forces. In general, a helical planetary gearbox will have a higher efficiency rate and lower noise levels.
A helical planetary gearbox will have a number of components that can vary in size and shape. They will include a sun gear and many planetary parts. The central sun gear will take a low-torque input and will run multiple external gears to increase the torque and speed. This basic model of a planetary gearbox is highly efficient, transferring 97% of the power input. There are 3 main types of planetary gearboxes: the cylindrical planetary gearbox, the helical planetary gearbox, and the helical wormwheel.
The CZPT is a good example of an entry-level helical planetary gearbox. It is extremely reliable and aimed at providing torque in quiet applications with high precision. The Access series is another option, which is designed to meet the needs of the low-backlash planetary gearbox market. It features helical planetary gears with 5 to 8 arc-minutes backlash, and is built on a monobloc housing.
A helical planetary gearbox is widely used in 3D printing. They are lightweight and can provide a high gear ratio. In addition to their low weight and high efficiency, some people have installed them into 3D printers to improve the accuracy of their designs. And in addition to 3D printing, helical gears are used in many industrial applications. If you’re thinking about purchasing one, you should know what the benefits are.

Spur planetary gearbox

There are many advantages to a spur planetary gearbox, from its compact design and low cost to its unmatched power transmission capacity per unit volume. Planetary gears have high efficiency per stage and can achieve up to 95% efficiency, depending on the ratio. Planet gears are mounted on a joint carrier, and the output rotation speed is slower than the drive rotation speed, which leads to increased torque. The higher the gear wheels, the more torque the unit can produce.
A spur planetary gearbox incorporates multiple other gear sets that must have helical teeth. These other gear sets must be helical, and the motor must be aligned with the driven parts. The spur gears are the most efficient type of planetary gear, as their teeth are symmetrical, which means no axial forces are generated. The difference between a spur and a planetary gearbox is its shape.
The right angle spur planetary gearbox is a versatile design with a spiral bevel gear that provides superior smoothness and quiet operation. This gearhead is case-hardened and ground to increase its efficiency. These gears can be purchased in 3-100 ratios. Spur planetary gearboxes can also have ISO rotary flanges, keyed shafts, DIN splines, or hollow compression connections.
A spur planetary gearbox utilizes spur gears around the circumference of the mechanism. The spur gears rotate between gears that have internal and external teeth. Because of this, the angular velocity of the spur gear differential carrier is the average of the ring gears and sun gears. A spur gearbox can also be considered a compound planetary gear. It is typically used for servo applications. Unlike spur gears, helical planetary gears are easier to maintain and have lower noise levels.
The most notable difference between a spur planetary gearbox and a planetary gearhead is the lubrication of the pinion and the spur gear head. A spur gear head is less complex, but cannot handle the same amount of load as a planetary gearhead. Both types can achieve the same backlash, but a planetary gearhead has better lubrication retention than a spur gear. It can run at higher speeds without excessive lubrication, while a spur gear drive is more efficient at low speeds. The reduction ratio of a planetary gearhead is near unity while that of a planetary gear head is many thousand to one.
A planetary gearbox has many applications. Plastic machinery, goods & personnel lifts, and machine tools are all prime examples of these types of gearing systems. Other industries that use these gears include wind turbines and sugar crystallizers, as well as steel and sugar mills. And of course, the use of planetary gears is not limited to these industries. It is used in many different ways, including slewing drives, mill drive, and derrick & dockyard cranes

China Mini Planetary Gearbox Stepper Motor with NEMA 8    China Mini Planetary Gearbox Stepper Motor with NEMA 8

China factory NEMA 8 20mm 2 Phase High Torque Hybrid Stepping Stepper Motor Planetary Gearbox with Great quality

Product Description

Hybrid Stepper Planetary Equipment Motor


HP201-1 20MM
Stepper Angel: 1.eight


Motor Electrical Specification:


About Us:

We specialized in exploring, developing and servicing electric powered motors, gearbox and higher precision gears with the small modules.

After many years of advancement, we have an independent solution design and the R&D staff, provider staff, and specialist high quality handle group.

What is much more, we have 2 joint ventures. 1 is positioned in HangZhou, which produces hybrid stepper motor, treasured linear stepper motor, brushless DC motor, servo motor, stepper motor driver, brushless motor driver, encoder and brake.

Yet another 1 is found in HangZhou, which produces DC gear motor. The factory has dozens of CNC devices and higher precision take a look at products, implements the procedure administration and automated operation in most producing process.

We also have 2 cooperation factories. One is producing AC reversible synchronous motor and AC servo motor, the other 1 is creating linear long term stepper motor, permanent stepper motors.

Customer’s Browsing:

Associated Merchandise:


How to Pick a Planetary Gearbox for Your Purposes

You can choose the most ideal Planetary Gearbox for your programs following very carefully examining the different functions. You need to also take into account secondary characteristics like sound degree, corrosion resistance, development, price, supply time and provider. You ought to also check out if the constructor is obtainable throughout the globe, because some constructors function more rapidly than others. Some constructors even respond to your requests on the very same working day, although others produce every single planetary gearbox even if they are out of inventory.

CZPT gearbox

An CZPT planetary gearbox is a substantial-good quality, compact, and light-weight gearbox that distributes hundreds over many gears. The planetary gearbox has a polymer scenario that assures quiet procedure. The firm is dedicated to the round financial system, investing in chemical recycling and promoting the use of recycled components anywhere achievable. For a lot more info, pay a visit to CZPT’s internet site or contact an CZPT skilled these days.
A planetary gearbox includes a sunlight equipment, which is known as the enter gear. The other gears are named planets, and these are mounted on a carrier, which is connected to an output shaft. A planetary gearbox is characterised by its higher reduction ratios, energy cost savings, and compact design. It gives exceptional sturdiness and problems-free support. Regardless of whether you need a big or little planetary gearbox, you can find one to match your demands.
The Regular series planetary gearboxes are a price-powerful alternative to high quality series gearboxes. These gearboxes are appropriate for applications necessitating only mild backlash or with lower IP65 safety. ABB positioners characteristic seven various equipment unit variants, making it possible for for standardized mounting and stranded wire connections. The drygear(r) strain wave gear has a stranded wire connector and is available with a a few-12 months guarantee.
A planetary gearbox can be utilized for various apps, from lifting goods to loading and unloading products in a factory. The organization has a vast merchandise selection for distinct applications, which includes plastic equipment and equipment tools, choose-and-location robots, mill drives, and wind turbines. It can also be used to function robotic gripper techniques. Its high-good quality planetary gears are made to final for several many years, creating it an perfect answer for many industries.


A planetary gearbox is an crucial element of a lot of transport systems. These devices perform by aligning the output and input shafts. The Reggiana planetary gearbox 2000 collection contains bevel levels and linear variants. The company provides modularity and versatility with output configurations in 10 various gear measurements. Every planetary gearbox can also be tailored to fulfill the distinct demands of a certain software.
CZPT is the Australian branch of CZPT, a foremost global maker of planetary gearboxes. CZPT is found in Carrum Downs, south east of Melbourne, and is a single of the major suppliers of planetary reduction gears, hydraulic failsafe brakes, and wheel drives. The company aims to supply higher-good quality, tough items that can be utilized in a variety of apps.
A CZPT Furthermore Sequence Equipment is made to increase adaptability in a selection of programs. The gearbox’s modular design and style enables for limitless scalability. The CZPT Plus Collection Equipment is commonly utilized in mining operations, and is acknowledged for its raw output abilities and reduced routine maintenance design and style. It is created with higher-good quality supplies, and it is also accessible in several measurements for tailored applications.
The multi-phase planetary gearbox can merge personal ratios to improve the total multiplicative aspect. The planetary gears might also be blended to improve the transmittable torque. The output shaft and travel shaft may possibly rotate in reverse directions, or they can be set so the gearbox can operate in both route. If the ring gear is fixed, planetary gearboxes can be understood as multi-stage.


The CZPT Planetary Gearbox is the excellent combination of compact dimensions and large efficiency in electrical power transmission. The compact design and style permits this gearbox to run silently although nevertheless delivering high power density and transmission effectiveness. The CZPT Planetary Gearbox has numerous positive aspects. Not like traditional planetary gearboxes, CZPT’s planetary gearbox functions large power density, lower torque, and ideal transmission efficiency.
CZPT’s items have been used in a range of applications for numerous several years, proving their trustworthiness and good quality. These goods are renowned in the entire world for their reliability and good quality. CZPT’s planetary gearboxes are backed by a 5-year warranty. These characteristics help customers select a planetary gearbox that satisfies their demands and stays in leading form for many years to occur. But how do you test a planetary gearbox?
Determine 17 shows the response of a planetary gearbox to vibration. The highest displacement in xg course at a 50% crack stage is demonstrated by the dashed line. The signal in xg path is referred to as the xsignal. Furthermore, the CZPT Planetary Gearbox’s vibration response is extremely delicate to the area of the bearings. For this purpose, dynamic modeling of a planetary gearbox should contemplate bearing clearance.
CZPT’s hollow cup motor drive technique attributes large reliability and low power use. The gearbox is compatible with industries with high high quality requirements, as there is no cogging torque. Its compact measurement and low electromagnetic sounds make it ideal for a variety of purposes. For industries with high merchandise good quality needs, the CZPT Hollow Cup Motor Generate Program is an outstanding option. It is also designed for vertical installation. You can even acquire multiple CZPT products to meet your distinct needs.


With its PL series planetary gearboxes, CZPT has expanded its merchandise portfolio to incorporate more sorts of generate remedies. CZPT is one particular of the number of companies to have received the Schneider Electric Provider Award for High quality. In addition, its high-high quality planetary gearboxes are very customizable, allowing designers to personalize every single gearbox for the application at hand. Whether or not it is a geared pump or a stepper motor, CZPT’s PLE planetary gearboxes are built to meet up with the specific technical specs of the software at hand.
The flange-mounted variation of the planetary gearbox is comparable to its planetary counterpart. Using a flange-mounted planetary gearbox enables for a more compact, a lot more compact style. This design also attributes a huge-diameter output shaft, which will help accomplish a larger level of torsional stiffness. This helps make CZPT flange gearboxes notably beneficial for purposes in which the route of movement can adjust frequently. These gearboxes can be used with a broad assortment of belts.
The PLQE 60-mm gearbox is used in Outrider’s one-stage design. Its equipment ratio is 5:1, while its dual-stage edition has a fifteen:1 equipment ratio. The two gearboxes have identical mounting configurations, but the two-phase variation is slightly for a longer time.
The PLN series of planetary gearheads from CZPT are the normal for higher-precision programs. They’re suitable with all key motor brand names and sizes, and the company’s adapter kits are obtainable to in shape virtually any motor. This tends to make CZPT gearheads a single of the best to integrate into a sophisticated device. They are also incredibly effortless to put in, with the very same torque as their corresponding spur gears.


If you are hunting for an successful solution for screw press apps, consider making use of CZPT’s 300M Planetary Gearbox. It has large axial and radial load capacities, compact design, substantial torque output, and torque arm. The 300M planetary gearbox is appropriate with a variety of screw presses, including hydraulic press methods and digester techniques. Its Torque handle and direct coupling attribute makes it easy to set up.
CZPT’s tiny planetary gearboxes have an output torque of twenty:1 from individual ratios of 5:1 and 4:1. They operate silently and supply optimum transmission effectiveness. The planetary gears are mounted on a ring that is mounted about the heart sun gear. The ring functions as an output torque converter for the next planet stage. This planetary gearbox has numerous levels and a optimum ratio of 20:1 can be created from personal ratios of 5:1 and 4:1.
CZPT Motor is an innovator in the design and style and manufacture of miniature motors for industrial robots. Its choices incorporate brushless DC and brushed DC motors, as nicely as planetary gearboxes, encoders, and brakes. CZPT’s items have a assortment of makes use of in robotics, intelligent appliances, medical equipment, conversation, and industrial automation. The organization is also dedicated to supplying custom styles based on client specifications.
Yet another edge of a planetary gearbox is its high electrical power transmission performance. It is capable of around 3% for each stage, allowing it to transmit a lot more torque than a traditional solitary-stage gearbox. Planetary gearboxes are also compact and have a high torque-to-fat ratio. CZPT’s Planetary Gearbox is the best option for a lot of programs. This gearbox provides the greatest effectiveness and is perfect for tiny-scale manufacturing.

China factory NEMA 8 20mm 2 Phase Higher Torque Hybrid Stepping Stepper Motor Planetary Gearbox     with Fantastic high qualityChina factory NEMA 8 20mm 2 Stage Higher Torque Hybrid Stepping Stepper Motor Planetary Gearbox     with Excellent quality