China DM-42RP775 12v permanent dc brush motor gearbox planetary geared specifications mini size wind generator motors for sale compound planetary gearbox

Warranty: 6 months
Applicable Industries: Hotels, Garment Shops, Building Material Shops, Manufacturing Plant, Machinery Repair Shops, Food & Beverage Factory, Farms, Restaurant, Home Use, Retail, Food Shop, Printing Shops, Construction works , Energy & Mining, Food & Beverage Shops, Other, Advertising Company
Customized support: OEM, ODM, JDM
Gearing Arrangement: Planetary
Output Torque:
Input Speed: 2000~9000rpm
Output Speed: 1~1000rpm
Working Current: 0.4A-5A
Gearbox Size: 42mm round
Stall Torque:
Driving Motor Speed: 2000rpm-9000rpm
Gears Style: Metal gear
Shaft diameter: 8mm
Normal Shaft Length: 22mm
Certification: CE, Rohs, CE, Rohs
Application: door lock, robotic
Working Hours: 800-1200 hours
Packaging Details: foam packed with outer paper cartons
Port: HangZhou/HongKong

DM-42RP775 12v permanent dc brush motor gearbox planetary geared specifications mini size wind generator motors for sale
1.Main voltage : 12VDC, 24VDC
2.Typical applications: Smart Instrument, Digital product, Automatic door-lock, Medical equipment, Security monitoring, Smart home applicances, Robots…
3. Round Gearbox size: 42mmφ*L
4. Torque:
5. Direction: CW, CCW
6. Voltage, speed, and shaft can be customized based
7. Encoder 13PPR available

Appearance size:

Gearbox Data :

Number of stages 1 2 3 4
Reduction ratio 3.7,5 13,18,25 49,67,92,125 181,246,
Gearbox length “L”mm 33.5 43.5 53.5 63.5
Breaking torque( 15 25 50 90
Gearbox efficiency 90% 81% 73% 65%

Driving Motor Data :

Motor model Rated
No load Load Stall
Current Speed Current Speed Torque Output power Torque Current
V mA r/min mA r/min W mA
DM-775-012-3000 12 ≤280 3000 ≤1300 2600 450 12 ≥3600 ≥8600
DM-775-012-4500 12 ≤450 4500 ≤2100 3800 500 19.5 ≥4600 ≥16200
DM-775-012-6000 12 ≤680 6000 ≤3600 5200 600 32 ≥5600 ≥27200
DM-775-571-3000 24 ≤120 3000 ≤920 2600 450 12 ≥2800 ≥5100
DM-775-571-4500 24 ≤230 4500 ≤1400 3800 500 19.5 ≥4100 ≥11000
DM-775-571-6000 24 ≤350 6000 ≤2300 5100 600 31.4 ≥5800 ≥19000

Gear Motor Data:

Motor model Rated
No load Load Stall
Current Speed Current Speed Torque Output power Torque Current
V A r/min A r/min W A
DM-42RP7750123500-3.7K 12.0 0.40 941.9 2.04 772.1 1.77 14.00 9.80 9.48
DM-42RP7750123600-125K 12.0 0.36 28.1 1.71 23.4 43.98 10.57 261.56 8.44
DM-42RP7750126000-5K 12.0 0.80 1296.5 3.99 1087.1 2.60 29.05 16.11 20.51
DM-42RP7750126000-49K 12.0 0.80 115.6 3.86 97.6 22.40 22.43 143.52 20.37
DM-42RP7750126000-125K 12.0 0.83 46.2 3.55 37.0 52.37 19.90 263.04 14.54
DM-42RP7750127000-3.7K 12.0 1.23 1929.4 5.90 1544.7 2.54 40.28 12.74 24.65
DM-42RP7750127000-125K 12.0 1.01 53.9 5.25 43.9 64.04 28.82 344.17 23.80
DM-42RP7750128000-25K 12.0 1.06 318.0 4.22 249.7 9.90 25.36 46.07 15.77
DM-42RP7750128000-92K 12.0 1.08 87.7 5.09 72.1 39.96 29.56 224.38 23.57
DM-42RP77501212000-3.7K 12.0 3.10 3234.8 13.50 2528.9 3.22 83.67 14.77 50.74
DM-42RP7755712000-336K 24.0 0.08 6.0 0.32 4.7 57.22 2.76 261.33 1.18
DM-42RP7755712100-49K 24.0 0.11 41.7 0.46 32.3 13.55 4.49 60.21 1.67
DM-42RP7755712100-67K 24.0 0.08 29.4 0.39 23.7 17.16 4.18 88.90 1.68
DM-42RP7755713000-18K 24.0 0.16 165.2 0.85 136.3 7.72 10.80 44.19 4.11
DM-42RP7755713000-49K 24.0 0.13 62.2 0.72 53.2 15.81 8.64 109.44 4.22
DM-42RP7755713600-125K 24.0 0.19 29.1 1.16 24.5 57.20 14.40 363.22 6.34
DM-42RP7755715000-27K 24.0 0.21 197.2 1.57 166.7 13.32 22.79 86.06 9.02
DM-42RP7755714500-181K 24.0 0.60 24.6 2.02 19.4 92.40 18.38 433.23 7.31
DM-42RP7755716000-25K 24.0 0.30 228.9 1.93 199.3 14.00 29.17 110.00 12.92
DM-42RP7755717000-13K 24.0 0.46 551.6 3.29 467.2 10.20 48.92 66.66 18.99
DM-42RP7755717000-67K 24.0 0.37 104.1 2.40 90.6 32.98 30.68 254.37 16.00
DM-42RP7755718000-25K 24.0 0.63 330.4 4.07 277.1 19.62 55.82 121.62 21.93
DM-42RP7755718000-92K 24.0 0.51 85.7 3.11 72.3 52.97 39.29 338.17 17.13
DM-42RP77557110000-13.7K 24.0 0.57 729.9 4.57 626.6 10.76 69.21 76.00 28.77

Curve Chart:
Model: DM-42RP7755716000-25K

Model: DM-42RP7755718000-92K

Gear Motor Torque=Driving motor torque*Reduction ratio*Gearbox efficiency;
Gear Motor Speed=Driving motor speed/Reduction ratio
Motor detailed config can be customized according to customer’s requests,like voltage,speed,as well as shaft length and shape…
Welcome OEM or ODM projects

Product picture



Machine and Testing Equipment


About us
HangZhou Xihu (West Lake) Dis.ming Motor Co., Ltd. is expecialized in micro dc motors and dc gear motors. With 10-year-experience and a professional R & D team, Xihu (West Lake) Dis.ming Motor stands out in gear motor market in China. We have successfully worked out over 100 series of micro DC motors. Our products are widely used in household appliances, audio/video products, office equipment, health-care and beauty-care facilities, medical appliances, high-class toys, electronic tools, electronic commodity, automotive parts and automatic systems.


  • Q: What kind of motors can you provide?
  • A: We can provide dc motor, dc gear motor including spur gear motor, planetary gear motor, worm gear motor; voltage, free load speed, rated speed, rated torque and size can be customized;
  • Q: What is the delivery time for samples and mass production?
  • A: For samples if we don’t have material stock, delivery date 15-20days; if with stock, produce date can be 3-5days;
  • For mass production, normally arrange under schedule, the ealier your order is, the faster we will produce; in slack season delivery date is 25 dasy; busy season we will need more than 30 days if quantity is large;
  • Q: What spec. shall I provide before sample making?
  • A: A good questions! Pls tell us spec. of voltage, free-load speed, load speed, rated torque, size spec. or other special requirement; we will provide our best recommend to you;
  • Q: Is there testing report or motor specification when I get the sample?
  • A: Yes, we provide the testing report and specification in PDF file after sample is ready;
  • Welcome to inquire!

    Planetary Gearbox Basics

    If you’re in the market for a new Planetary Gearbox, you’ve come to the right place. There’s more to these mechanical wonders than just their name. Learn about Spur gears, helical gears, and various sizes. After you’ve read this article, you’ll know exactly what to look for when shopping for a new one. And you’ll also be able to avoid common mistakes made by amateur mechanics.

    Wheel drive planetary gearboxes

    Planetary gearboxes have numerous benefits over conventional gearboxes. Their compact design is advantageous for servo functions. Their lubrication is a key feature to maintain smooth operation and avoid damage to the gears. Some manufactures use CZPT to ensure proper functioning. These gearboxes have nearly three times the torque of traditional gearboxes while remaining compact and low in mass.
    The planetary gears are made of three different types. Each type has an input and output shaft. The input and output shafts are usually coaxially arranged. The input and output shafts are connected to each other via a carrier. The carrier rotates with the planetary gears. The sun gear is the input gear and is typically 24 teeth in diameter. The outer gears are connected to the sun gear via rings of gears that are mounted around the sun gear.
    Planetary gearboxes are also used in wheeled and tracked vehicles. They are also used in winch systems, which lift and lower loads. Typical applications include heavy machinery, such as cranes and earthmovers. Wheel drives are also widely used in municipal and agricultural vehicles, as well as material handling vehicles. The wheel drive is typically mounted directly into the wheel rim. A wheel drive may be fitted into two, three, or even four wheels.
    A planetary gear set may be used in stages to provide different transmission rates. In order to choose the right gearbox for your application, consider the torque, backlash, and ratio you need. Then, consider the environment where the gearbox is used. Depending on its location, it might need to be protected from weather, water, and other elements. You can find a wide range of different sizes in the market.

    Spur gears

    There are two basic types of gearheads: planetary and spur gearheads. Each has its advantages and disadvantages depending on the application. This article will discuss the differences between these two types of gearheads. Spur gearheads are commonly used for transmission applications, while planetary gearheads are more widely used for motors. Spur gearheads are less expensive to produce than planetary gearheads, and they are more flexible in design.
    There are many different types of spur gears. Among them, a 5:1 spur gear drive ratio means that the sun gear must rotate five times per revolution of the output carrier. The desired number of teeth is 24. In metric systems, the spur gears are referred to as mm and the moon gears as modules. Spur gears are used in many different types of applications, including automotive and agricultural machinery.
    A planetary geartrain is a combination of ring and spur gears, which mesh with each other. There are two kinds of planetary geartrains: simple planetary gears and compound planetary gears. Spur gears are the most common type, with a sun gear and ring gear on either side of the sun. Simple planetary gears feature a single sun and ring gear, while compound planetary gears use multiple planets.
    A planetary gearbox consists of two or more outer gears, which are arranged to rotate around the sun. The outer ring gear meshes with all of the planets in our solar system, while the sun gear rotates around the ring gear. Because of this, planetary gearboxes are very efficient even at low speeds. Their compact design makes them a desirable choice for space-constrained applications.

    Helical gears

    A planetary helical gearbox has two stages, each with its own input speed. In the study of planetary helical gear dynamics, the base circle radius and full-depth involute teeth are added to the ratio of each gear. The tangential position of the planets affects the dynamic amplifications and tooth forces. The tangential position error is an important factor in understanding the dynamic behaviour of helical planetary gears.
    A helical gearbox has teeth oriented at an angle to the shaft, making them a better choice than spur gears. Helical gears also operate smoothly and quietly, while spur gears generate a thrust load during operation. Helical gears are also used in enclosed gear drives. They are the most common type of planetary gearbox. However, they can be expensive to produce. Whether you choose to use a helical or spur gearbox depends on the type of gearbox you need.
    When choosing a planetary gear, it is important to understand the helix angle of the gear. The helix angle affects the way the planetary gears mesh, but does not change the fundamentals of planetary phasing. In each mesh, axial forces are introduced, which can either cancel or reinforce. The same applies to torques. So, if the ring gear is positioned at an angle of zero, helical gears will increase the axial forces.
    The number of teeth on the planets is a variable parameter that must be considered in the design phase. Regardless of how many teeth are present, each planet must have a certain amount of tooth spacing to mesh properly with the ring or sun. The tip diameter is usually unknown in the conceptual design stage, but the pitch diameter may be used as an initial approximation. Asymmetrical helical gears may also cause undesirable noise.

    Various sizes

    There are several sizes and types of planetary gearboxes. The planetary gear sets feature the sun gear, the central gear, which is usually the input shaft, and the planet gears, which are the outer gears. A carrier connects the planet gears to the output shaft. The primary and secondary features of the planetary gearbox are important factors to consider. Besides these, there are other things to consider, such as the price, delivery time, and availability around the world. Some constructors are quicker than others in responding to inquiries. While others may be able to deliver every planetary gearbox out of stock, they will cost you more money.
    The load share behavior of a planetary gearbox is comparable to that of a spur or a helical gearbox. Under low loads, individual gear meshes are slightly loaded, while other components have minimal deflections. In general, load sharing behaviour is affected mostly by assembly and manufacturing deviations. In this case, the elastic deflections help balance these effects. The load-sharing behavior of a planetary gearbox improves when the load increases.
    Planetary gearboxes come in different sizes. The most common size is one with two or three planets. The size and type of the gears determine the transmission rate. Planetary gear sets come in stages. This gives you multiple transmission rate choices. Some companies offer small planetary gearboxes, while others offer larger ones. For those with special applications, make sure you check the torque, backlash, and ratio.
    Whether the power is large or small, the planetary gearbox should be matched to the size of the drive. Some manufacturers also offer right-angle models. These designs incorporate other gear sets, such as a worm gear stage. Right-angle designs are ideal for situations where you need to vary the output torque. When determining the size of planetary gearboxes, make sure the drive shafts are lined up.


    This report is designed to provide key information on the Global Applications of Planetary Gearbox Market, including the market size and forecast, competitive landscape, and market dynamics. The report also provides market estimates for the company segment and type segments, as well as end users. This report will also cover regional and country-level analysis, market share estimates, and mergers & acquisitions activity. The Global Applications of Planetary Gearbox Market report includes a detailed analysis of the key players in the market.
    The most common application of a planetary gearbox is in the automobile industry, where it is used to distribute power between two wheels in a vehicle’s drive axle. In a four-wheel-drive car, this system is augmented by a centre differential. In hybrid electric vehicles, a summation gearbox combines the combustion engine with an electric motor, creating a hybrid vehicle that uses one single transmission system.
    In the Global Industrial Planetary Gearbox Market, customer-specific planetary gears are commonly used for automated guided vehicles, intra-logistics, and agricultural technology. These gears allow for compact designs, even in tight spaces. A three-stage planetary gear can reach 300 Nm and support radial loads of 12 kN. For receiver systems, positioning accuracy is critical. A two-stage planetary gearbox was developed by CZPT. Its internal gear tension reduces torsional backlash, and manual controls are often used for high-quality signals.
    The number of planetary gears is not fixed, but in industrial applications, the number of planetary gears is at least three. The more planetary gears a gearbox contains, the more torque it can transmit. Moreover, the multiple planetary gears mesh simultaneously during operation, which results in high efficiency and transmittable torque. There are many other advantages of a planetary gearbox, including reduced maintenance and high speed.

    China DM-42RP775 12v permanent dc brush motor gearbox planetary geared specifications mini size wind generator motors for sale     compound planetary gearboxChina DM-42RP775 12v permanent dc brush motor gearbox planetary geared specifications mini size wind generator motors for sale     compound planetary gearbox
    editor by czh

    Tags: 12v dc motor | 12v dc motor specifications | 12v dc motors | 12v dc motors specifications | 12v gearbox | 12v motor | 12v motors | brush motor | brush motors | china dc motor | china dc motors | china gearbox | china motor | china motor dc | china motors | china motors dc | dc 12v motor | dc 12v motors | dc gearbox motor | dc gearbox motor 12v | dc gearbox motors | dc gearbox motors 12v | dc geared 12v motor | dc geared 12v motors | dc geared motor | dc geared motors | dc motor | dc motor 12v | dc motor gearbox | dc motor generator | dc motors | dc motors 12v | dc motors gearbox | dc motors generator | dc planetary gearbox | gearbox | gearbox 12v | gearbox china | gearbox dc | gearbox mini | gearbox motor | gearbox motor dc | gearbox motor dc 12v | gearbox motor mini | gearbox motors | gearbox motors dc | gearbox motors dc 12v | gearbox motors mini | gearbox planetary | geared dc motor | geared dc motors | geared motors | generator gearbox | generator gearbox gearbox | generator motor | generator motors | mini 12v dc geared motors | mini dc motor | mini dc motor gearbox | mini dc motors | mini dc motors gearbox | mini gearbox | mini geared motor | mini geared motors | mini motor | mini motor dc | mini motor gearbox | mini motors | mini motors dc | mini motors gearbox | mini planetary gearbox | motor | motor 12v | motor dc | motor dc 12v gearbox | motor dc geared motor | motor gearbox | motor gearbox china | motor gearbox dc | motor generator | motor mini | motor motor | motor planetary gearbox | motors | motors 12v | motors dc | motors dc 12v gearbox | motors dc geared motors | motors gearbox | motors gearbox china | motors gearbox dc | motors geared | motors generator | motors mini | motors motors | motors planetary gearbox | planetary dc motor | planetary dc motors | planetary gearbox | planetary gearbox for motor | planetary gearbox for motors | planetary motor | planetary motors | wind generator gearbox | wind generator motor | wind generator motors | wind generator motors for sale | wind motor generator | wind motors generator

    Planetary gear

    As one of the leading planetary gear manufacturers, suppliers, and exporters of mechanical products, We offer planetary gear and many other products.

    Please get in touch with us for details.

    Manufacturer supplier exporter of planetary gear.

    Recent Posts