Product Description
78mm ZDR Series High Precision Planetary Gearbox For Servo Motor
Product Description
ZDR series planetary gearbox has adopted helical gear design, so the meshing of gears can be smoother. This series has a double-supported and sealed structure, easier to install for customers. It is widely used in linear manipulators, packaging machinery, assembly lines and etc. The maximum backlash of the ZDR series is less than 5 arc.min and the reduction ratio covers 3~81.
The Product Advantages of Planetary Gearbox:
1.Flexible structure design, in line with various working conditions.
2.Ring gear processing technology: Using internal gear slotting machine and hobbing machine; the precision of ring gear after processing can reach GB7.
3.Hardened gear secondary scraping technology: secondary high-speed dry cutting of gear eliminates gear deformation caused by heat treatment. Gear accuracy can reach GB6.
4.Reliable backlash testing.
Specifications
Outline Drawing:
1)When input speed is 3000rpm:
| Product NO. | Reduction Ratio | Motor | Output Shaft Speed (rpm) | Standard Output Torque (N.m) | Instantaneous max.Output Torque (N.m) | Permissible Radial Load (N) | Permissible Axial Load (N) | Internal Moment Ohnertia Of Input Shaftconversion (x10-4 kg.m2) | Perrmissible Output Torque (N.m) | Instantaneous Max. Permissible Output Torque (N.m) |
| 78ZDR | 3 | 750 | 1000 | 6.37 | 19.3 | 784 | 392 | 0.913 | 6.86 | 20.6 |
| 5 | 400 | 600 | 5.39 | 16.2 | 980 | 490 | 0.363 | 6.57 | 19.7 | |
| 750 | 10.7 | 32.1 | 0.713 | 11.5 | 34.3 | |||||
| 9 | 200 | 333 | 3.72 | 11.3 | 1180 | 588 | 0.275 | 9.70 | 29.2 | |
| 400 | 9.51 | 28.5 |
Note1) The moment of input shaft conversion is only gained from the reducer, so it does not include moment of inertia of the motor.
Note2) The max. input speed is 5000rpm. Usually set to 3000rpm or less.
Note3) The permissble radial load is indicated on the center of the output shaft.
Note4) All values are within the range corresponding to helical gear.
2)When input speed is 2000rpm
| Product NO. | Reduction Ratio | Motor | Output Shaft Speed (rpm) | Standard Output Torque (N.m) | Instantaneous max.Output Torque (N.m) | Permissible Radial Load (N) | Permissible Axial Load (N) | Internal Moment Ohnertia Of Input Shaftconversion (x10-4 kg.m2) | Perrmissible Output Torque (N.m) | Instantaneous Max. Permissible Output Torque (N.m) |
| 78ZDR | 3 | 400 | 666 | 5.01 | 15.0 | 900 | 450 | 0.913 | 6.86 | 20.6 |
| 5 | 200 | 400 | 3.82 | 11.5 | 1120 | 560 | 0.363 | 6.57 | 19.7 | |
| 400 | 8.35 | 25.1 | 0.713 | 11.5 | 34.3 | |||||
| 9 | 100 | 222 | 2.35 | 7.04 | 1340 | 670 | 0.275 | 9.70 | 29.2 | |
| 200 | 6.64 | 19.9 | ||||||||
| 15 | 100 | 133 | 3.91 | 11.7 | 1670 | 833 | 0.300 | 16.2 | 48.6 | |
| 200 | 11.1 | 33.2 | ||||||||
| 20 | 100 | 100 | 5.73 | 17.2 | 1790 | 895 | 0.294 | 21.1 | 63.3 | |
| 200 | 14.8 | 44.4 | ||||||||
| 25 | 100 | 80.0 | 7.16 | 21.5 | 1670 | 833 | 0.288 | 21.7 | 64.9 | |
| 200 | 18.5 | 55.4 | ||||||||
| 35 | 50 | 57.0 | 4.43 | 13.3 | 1900 | 950 | 0.262 | 15.5 | 46.6 | |
| 100 | 12.7 | 38.1 | ||||||||
| 45 | 50 | 44.4 | 5.80 | 17.4 | 1670 | 833 | 0.5715 | 9.50 | 28.6 | |
| 81 | 50 | 24.6 | 9.70 | 29.2 | 1670 | 833 | 0.5710 | 9.70 | 29.2 |
Note1) The moment of input shaft conversion is only gained from the reducer, so it does not include moment of inertia of the motor.
Note2) The permissble radial load is indicated on the center of the output shaft.
Note3) All values are within the range corresponding to helical gear.
Mechanism & Parts:
Double support mechanism
1.The planetary gear is placed in the middle of the output shaft.
2.The output shaft bearing is placed at both ends of the planetary gear.
3.Separate sun gear and coupling.
Compact output shaft mechanism
It adopts the design of output shaft integrated system, compact structure, high rigidity, and it can withstand large impact. Place the input coupling and the sun gear at the center of the output shaft to improve the concentricity of the components, thereby effectively controlling the gear clearance and improving the backlash of the whole gearbox.
Full needle structure
The inner bearing of the planetary gear adopts a full-needle design, the inner hole is made by a grinding process, the surface hardness is HRC60, and the cylindricity is less than 0.003mm.
Ring gear structure
The integral structure of the ring gear and the output flange improves its rigidity and reduces misassembly.
Similar Products
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Company Profile
FAQ
Q: What’re your main products?
A: We currently produce Brushed Dc Motors, Brushed Dc Gear Motors, Planetary Dc Gear Motors, Brushless Dc Motors, Stepper motors, Ac Motors and High Precision Planetary Gear Box etc. You can check the specifications for above motors on our website and you can email us to recommend needed motors per your specification too.
Q: How to select a suitable motor?
A:If you have motor pictures or drawings to show us, or you have detailed specs like voltage, speed, torque, motor size, working mode of the motor, needed lifetime and noise level etc, please do not hesitate to let us know, then we can recommend suitable motor per your request accordingly.
Q: Do you have a customized service for your standard motors?
A: Yes, we can customize per your request for the voltage, speed, torque and shaft size/shape. If you need additional wires/cables soldered on the terminal or need to add connectors, or capacitors or EMC we can make it too.
Q: Do you have an individual design service for motors?
A: Yes, we would like to design motors individually for our customers, but it may need some mold developing cost and design charge.
Q: What’s your lead time?
A: Generally speaking, our regular standard product will need 15-30days, a bit longer for customized products. But we are very flexible on the lead time, it will depend on the specific orders.
Please contact us if you have detailed requests, thank you ! /* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
| Application: | Motor, Machinery, Agricultural Machinery, servo motor gearbox |
|---|---|
| Hardness: | Hardened Tooth Surface |
| Installation: | Horizontal Type |
| Layout: | Coaxial |
| Gear Shape: | Helical gear |
| Step: | Double-Step |
| Samples: |
US$ 130/Piece
1 Piece(Min.Order) | |
|---|
| Customization: |
Available
| Customized Request |
|---|

Benefits of a Planetary Gearbox With Output Shaft
The output shaft of a Planetary Gearbox connects to the driven wheels, while the input shaft comes from the engine. These gears are interlinked and create a wide range of gear reductions, which are necessary to get a vehicle rolling comfortably. Gear reductions are the place where the various “gears” are located. Here are some examples. They can help you determine what you need for your vehicle. You might also want to learn about planetary gears.
Planetary gearboxes
Modern cars are most likely equipped with planetary gearboxes. If you’re unsure if your vehicle uses planetary gears, you should first consult your car’s owner’s manual. If not, contact your dealership’s service department for more information. Otherwise, you can do a quick search on the internet to find out whether your car has a planetary gearbox. These gearboxes are generally more complex than ordinary gears. Additionally, they are equipped with more parts and require lubrication.
In addition to their low noise levels, planetary gearboxes are also remarkably efficient at transmission. These features make them ideal for applications requiring high torque and small footprints. Unfortunately, there are many different types of planetary gearboxes on the market, making it difficult to find the right one. The following article will give you some guidelines to help you choose the right planetary gearbox for your needs. Let’s take a look!
Planetary gears
A planetary gearbox has two main components: the sun gear (also known as the central or input) and the planet gears (also known as outer or peripheral). These gears are connected together by a carrier to the output shaft of the machine. In some applications, it is necessary to use a planetary gearbox with lubrication to prevent wear and tear. A planetary gearbox also has a small ring gear that helps hold the planet gears together.
The main advantage of a planetary gearbox is that it uses several teeth that engage at once, allowing for high-speed reduction with a small number of gears. Because the gears are relatively small, they have lower inertia than their larger counterparts. Planetary gearboxes are compact, which makes them popular for space-constrained applications. Because of their compact size and efficiency, planetary gearboxes are also commonly used in motor vehicles.
Planetary gearboxes with output shaft
For high-speed, dynamic applications, planetary gearbox units with output shaft provide the optimal solution. Thanks to their low inertia, these gearheads deliver superior performance in many industrial applications. Additionally, their wide range of variants allows users to select the perfect product for their application. This article examines some of the key benefits of planetary gearboxes with output shaft. Read on to learn more.
The planetary gearbox has two major components: a sun gear and planet gears. The sun gear is usually the input gear, while the planet gears are located at the outer edges of the system casing. Planet gears are held together by a carrier that is connected to the output shaft. Before choosing a particular gearbox for your application, make sure that you check the specific requirements and the environment to which the unit will be subjected.
A planetary gearbox has less stages of gears, and thus lower backlash compared to spur gearboxes. Backlash is lost motion that occurs when the teeth of the gears are out of perfect alignment. This problem is common in all gears, but is significantly less in planetary gearboxes. As such, planetary gearboxes are more efficient. They can also be customized according to the specific engine model and motor flange.
Planetary gearboxes with carrier
A planetary gearbox is a type of gearbox with three or more stages. They have a sun gear, which is usually the input gear, and planet gears, also called the outer gears. The carrier that connects the planet gears to the output shaft is called a ring gear. A planetary gearbox is generally designed to meet specific application and environmental requirements, but there are some factors to consider when choosing one.
The compact footprint of planetary gear sets results in high heat dissipation. This can be a problem in applications with sustained performance or high speeds. As a result, planetary gear sets often include lubricants, which present a cooling effect while also reducing noise and vibration. Some planetary gears even feature a carrier to make the installation process easier. Here are some things to keep in mind when choosing a planetary gear set.
Planetary gearboxes with carrier have several advantages over other types of gearboxes. Unlike conventional gearboxes, planetary gears have a common central shaft, and the tangential forces between the gears cancel out at the center of the ring gear. Because of this, planetary gearboxes are commonly used in input/output applications, and their compact size allows for a wide range of gear reductions. These gears can also produce higher torque density.
Planetary gearboxes with traction
Planetary gears are similar to the planetary system, in that each pinion rotates around a sun gear. The output of the planetary gear unit is lower than the drive rotation speed, but the torque is higher. As the number of planet gear wheels increases, so does the torque. Planetary gear systems contain three to four planet gears, and each is in constant mesh with the others. Power applied to any one member rotates the entire assembly.
Typical applications for planetary gear sets include high-precision motion control. In these applications, high torque, torsional stiffness, and low backlash are required. Planetary gear sets are also ideal for motors with higher speeds. A number of factors contribute to the reliability of these devices. The low backlash and large torque capacity of a planetary gear motor allow them to be used in a wide range of applications.
Planetary gearboxes with electric motors
If you’re in the market for a new gearbox, you may have already heard about planetary gearboxes. The planetary gearbox is a high-efficiency, low-noise gearbox. CZPT manufactures high-torque planetary gearboxes with low backlash. They also make economy planetary gearboxes for lower loads. However, with so many different types available, choosing the right one for your needs can be challenging.
These planetary gearboxes are a compact alternative to conventional pinion-and-gear reducers. They offer high-speed reduction and high torque transfer, and are often used for space-constrained applications. But before you can understand how they work, you’ll need to understand a little about their construction. There are a few things to look for that you may not have noticed before.
The most common type of planetary gearbox is a PM81/LN. It features a set of DC brush motors with diameter 77mm, a stator, and two or more outer gears. Each of these gears is connected to an output shaft through a carrier. They can also be used with brakes, encoders, or a clutch. A planetary gearbox is one of the most reliable gearbox types on the market.
Planetary gearboxes with hydraulic motors
A planetary gearbox is a combination of two gears, the sun and the planets. The sun gear rotates at high speed, while the planets roll around and orbit around the ring gear. The output shaft has the same direction of rotation as the input shaft. The benefits of a planetary gearbox include high reduction ratios, efficiency, space-saving compactness, and higher overload capacity. These gears are also more stable and compact, and they do not suffer from self-locking properties.
Planetary gearboxes are a highly efficient way to power hydraulic lifts. They can be input via electric, hydraulic, or air motors. The drive arrangement can be mounted on a bare shaft, splined shaft, or a parallel keyed input shaft. Depending on the application, bespoke gearboxes can be manufactured with a variety of features and functions.
Planetary gearboxes with combustion engines
There are many different applications of planetary gear sets. The most common is the distribution of power between two wheels in a car’s drive axle. Four-wheel drives use two axle differentials, which are further augmented by a centre differential. Hybrid electric vehicles use summation gearboxes to distribute power from the combustion engine to the wheels and to an electric motor. Planetary gear sets also combine the two different types of motors to form one hybrid vehicle.
To understand how planetary gear sets work, it is important to understand the underlying mechanical principles. For example, Fig. 4.6 shows a stick diagram illustrating two planetary gear sets connected by a lever. The two levers are the same length, so the system is analogous to a single lever. When calculating the torque, it is essential to consider the lever diagram. Similarly, if two gear sets are connected by vertical links, the horizontal links must be horizontal.


editor by CX 2024-04-09
China high quality ZD TRANSMISSION PLANETARY GEARBOX. 32ZPN13K, WITHOUT MOTOR planetary gearbox advantages
Product Description
CZPT , TRANSMISSION PLANETARY GEARBOX.32PN13K
Features:
The planetary gearbox for transmission is widely matched with DC motor and BLDC motor. It shows the characters of high torque and controlablity as well as the high lasting torque. The perfect combination fully expresses the product’s smaller and high torque.
TYPES:
BLDP: Brushless DC motor matched with planetary gearbox
DP: Brush DC motor with inner brush(no brush replacement from outside), matched with planetary gearbox
PM: Tansmission planetary(metal)
PK: Tansmission planetary(plastic)
| Motor type | Voltage | Power | No-load speed | No-load current | Rated speed | Rated current | Rated torque | Motor life | Motor weight |
| V | W | RPM | A | RPM | A | N. M | H | Kg | |
| Z22DP2410-60S | 24 | 10 | 6500 | 0.3 | 6000 | 0.85 | 1.6 | 1000 | 0.5 |
| Z22BLDP2410-60S | 24 | 10 | 6500 | 0.3 | 6000 | 0.90 | 1.6 | 3000 | 0.5 |
| Z32DP2415-30S | 24 | 15 | 3500 | 0.5 | 3000 | 1.20 | 47.5 | 1000 | 0.8 |
| Z32BLDP2415-30S | 24 | 15 | 3500 | 0.5 | 3000 | 1.20 | 47.5 | 2000 | 0.8 |
| Z42DP2425-30S | 24 | 25 | 3500 | 0.7 | 3000 | 1.8 | 79.6 | 1000 | 1.0 |
| Z42BLDP2425-30S | 24 | 25 | 3500 | 0.7 | 3000 | 1.7 | 79.6 | 3000 | 1.2 |
| Z52DP2440-30S | 24 | 40 | 3300 | 0.8 | 3000 | 2.50 | 127.3 | 2000 | 1.5 |
| Z52BLDP2440-30S | 24 | 40 | 3300 | 0.8 | 3000 | 2.40 | 127.3 | 5000 | 1.8 |
| Z62DP2460-30S | 24 | 60 | 3500 | 1.0 | 3000 | 4.0 | 0.19 | 2000 | 1.8 |
| Z62BLDP2460-30S | 24 | 60 | 3600 | 1.0 | 3000 | 4.0 | 0.19 | 5000 | 2.0 |
| Z62DP2490-30S | 24 | 90 | 3500 | 1.0 | 3000 | 5.5 | 0.29 | 2000 | 2.0 |
| Z62BLDP2490-30S | 24 | 90 | 3500 | 1.0 | 3000 | 5.5 | 0.29 | 5000 | 2.3 |
| Motor type | Gearbox type | Reduction ratio | Dimension(mm) |
|
Z22DP Z22BLDP |
22PM |
3.65-8.63 | 24 |
| 13-74 | 32.3 | ||
| 87-643 | 40.6 | ||
| Z32DP
Z3BL2DP |
32PM |
3.65-8.63 | 28.5 |
| 13-74 | 38.3 | ||
| 87-643 | 48.1 | ||
| Z42DP
Z42BLDP |
42PM | 3.65-8.63 | 38.6 |
| 13-74 | 56.9 | ||
| 87-643 | 75.2 | ||
| Z52DP
Z52BLDP |
52PM | 3.65-8.63 | 48.7 |
| 13-74 | 65.1 | ||
| 87-643 | 81.5 | ||
| Z62DP
Z62BLDP |
62PM | 3.65-8.63 | 53 |
| 13-74 | 71 | ||
| 87-643 | 89 |
Company Information
FAQ
Q: What’re your main products?
A: We currently produce Brushed Dc Motors, Brushed Dc Gear Motors, Planetary Dc Gear Motors, Brushless Dc Motors, Stepper motors, Ac Motors and High Precision Planetary Gear Box etc. You can check the specifications for above motors on our website and you can email us to recommend needed motors per your specification too.
Q: How to select a suitable motor?
A:If you have motor pictures or drawings to show us, or you have detailed specs like voltage, speed, torque, motor size, working mode of the motor, needed lifetime and noise level etc, please do not hesitate to let us know, then we can recommend suitable motor per your request accordingly.
Q: Do you have a customized service for your standard motors?
A: Yes, we can customize per your request for the voltage, speed, torque and shaft size/shape. If you need additional wires/cables soldered on the terminal or need to add connectors, or capacitors or EMC we can make it too.
Q: Do you have an individual design service for motors?
A: Yes, we would like to design motors individually for our customers, but it may need some mold developing cost and design charge.
Q: What’s your lead time?
A: Generally speaking, our regular standard product will need 15-30days, a bit longer for customized products. But we are very flexible on the lead time, it will depend on the specific orders.
Please contact us if you have detailed requests, thank you !
| Application: | Industrial, Power Tools |
|---|---|
| Operating Speed: | Constant Speed |
| Number of Stator: | Single-Phase |
| Species: | Y, Y2 Series Three-Phase |
| Rotor Structure: | Winding Type |
| Casing Protection: | Closed Type |
| Customization: |
Available
| Customized Request |
|---|

Planetary Gearbox Advantages and Disadvantages
A planetary gearbox is a type of mechanical drive with a single output shaft. They are suitable for both clockwise and counterclockwise rotations, have less inertia, and operate at higher speeds. Here are some advantages and disadvantages of this type of gearbox. Let us see what these advantages are and why you should use them in your applications. Listed below are some of the benefits of planetary gearboxes.
Suitable for counterclockwise and clockwise rotation
If you want to teach children about the clock hands, you can buy some resources for counterclockwise and asymmetrical rotation. These resources include worksheets for identifying degrees of rotation, writing rules for rotation, and visual processing. You can also use these resources to teach angles. For example, the translation of shapes activity pack helps children learn about the rotation of geometric shapes. Similarly, the visual perception activity sheet helps children understand how to process information visually.
Various studies have been done to understand the anatomical substrate of rotations. In a recent study, CZPT et al. compared the position of the transitional zone electrocardiographically and anatomically. The authors found that the transitional zone was normal in nine of 33 subjects, indicating that rotation is not a sign of disease. Similarly, a counterclockwise rotation may be caused by a genetic or environmental factor.
The core tip data should be designed to work in both clockwise and counterclockwise rotation. Counterclockwise rotation requires a different starting point than a clockwise rotation. In North America, star-delta starting is used. In both cases, the figure is rotated about its point. Counterclockwise rotation, on the other hand, is done in the opposite direction. In addition, it is possible to create counterclockwise rotation using the same gimbal.
Despite its name, both clockwise and counterclockwise rotation requires a certain amount of force to rotate. When rotating clockwise, the object faces upwards. Counterclockwise rotation, on the other hand, starts from the top position and heads to the right. If rotating in the opposite direction, the object turns counterclockwise, and vice versa. The clockwise movement, in contrast, is the reverse of counterclockwise rotation.
Has less inertia
The primary difference between a planetary gearbox and a normal pinion-and-gear reducer is the ratio. A planetary gearbox will produce less inertia, which is an important advantage because it will reduce torque and energy requirements. The ratio of the planetary gearbox to its fixed axis counterpart is a factor of three. A planetary gearbox has smaller gears than a conventional planetary, so its inertia is proportional to the number of planets.
Planetary gears are less inertia than spur gears, and they share the load across multiple gear teeth. This means that they will have low backlash, and this is essential for applications with high start-stop cycles and frequent rotational direction changes. Another benefit is the high stiffness. A planetary gearbox will have less backlash than a spur gearbox, which means that it will be more reliable.
A planetary gearbox can use either spur or helical gears. The former provides higher torque ratings while the latter has less noise and stiffness. Both types of gears are useful in motorsports, aerospace, truck transmissions, and power generation units. They require more assembly time than a conventional parallel shaft gear, but the PD series is the more efficient alternative. PD series planetary gears are suitable for many applications, including servo and robotics.
In contrast, a planetary gear set can have varying input speed. This can affect the frequency response of the gearset. A mathematical model of the two-stage planetary gears has non-stationary effects and correlates with experimental findings. Fig. 6.3 shows an addendum. The dedendum’s minimum value is approximately 1.25m. When the dedendum is at its smallest, the dedendum has less inertia.
Offers greater reliability
The Planetary Gearbox is a better option for driving a vehicle than a standard spur gearbox. A planetary gearbox is less expensive, and they have better backlash, higher load capacity, and greater shock loads. Unlike spur gearboxes, however, mechanical noise is virtually nonexistent. This makes them more reliable in high-shock situations, as well as in a wide range of applications.
The Economy Series has the same power density and torque capacity of the Precision Helical Series, but it lacks the precision of the latter. In contrast, Economy Series planetary gearboxes feature straight spur planetary gearing, and they are used in applications requiring high torque. Both types of gearboxes are compatible with NEMA servo motors. If torque density is important, a planetary gearbox is the best choice.
The Dispersion of External Load: The SSI model has been extensively used to model the reliability of planetary gear systems. This model takes the contact force and fatigue strength of the system as generalized stress and strength. It also provides a theoretical framework to evaluate the reliability of planetary gear systems. It also has many other advantages that make it the preferred choice for high-stress applications. The Planetary Gearbox offers greater reliability and efficiency than traditional rack and pinion gear systems.
Planetary gearing has greater reliability and compact design. Its compact design allows for wider applications with concerns about space and weight. Additionally, the increased torque and reduction makes planetary gearboxes an excellent choice for a wide variety of applications. There are three major types of planetary gearboxes, each with its own advantages. This article describes a few of them. Once you understand their workings, you will be able to choose the best planetary gearbox for your needs.
Has higher operating speeds
When you look at planetary gearboxes, you might be confused about which one to choose. The primary issue is the application of the gearbox. You must also decide on secondary factors like noise level, corrosion resistance, construction, price, and availability worldwide. Some constructors work faster than others and deliver the gearboxes on the same day. However, the latter ones often deliver the planetary gearbox out of stock.
Compared to conventional gearboxes, a planetary gearbox can run at higher speeds when the input speed fluctuates. However, these gears are not very efficient in high-speed applications because of their increased noise levels. This makes planetary gears unsuitable for applications involving a great deal of noise. That is why most planetary gears are used in small-scale applications. There are some exceptions, but in general, a planetary gearbox is better suited for applications with higher operating speeds.
The basic planetary gearbox is a compact alternative to normal pinion-and-gear reducers. They can be used in a wide variety of applications where space and weight are concerns. Its efficiency is also higher, delivering 97% of the power input. It comes in three different types based on the performance. A planetary gearbox can also be classified as a worm gear, a spur gear, or a sprocket.
A planetary gearhead has a high-precision design and can generate substantial torque for their size. It also reduces backlash to two arc-min. Additionally, it is lubricated for life, which means no maintenance is needed. It can fit into a small machine envelope and has a small footprint. Moreover, the helical crowned gearing provides fast positioning. A sealed gearbox prevents abrasive dust from getting into the planetary gearhead.
Has drawbacks
The design of a planetary gearbox is compact and enables high torque and load capability in a small space. This gear arrangement also reduces the possibility of wear and tear. Planet gears are arranged in a planetary fashion, allowing gears to shift under load and a uniform distribution of torque. However, some disadvantages of planetary gears must be considered before investing in this gearbox.
While the planetary gearbox is a high precision motion-control device, its design and maintenance requirements are a concern. The bearing load is high, requiring frequent lubrication. Also, they are inaccessible. Despite these drawbacks, planetary gearboxes are suitable for a variety of tasks. They also have low backlash and high torsional stiffness, making them excellent choices for many applications.
As a result, the speed of a planetary gearbox varies with load and speed. At lower ratios, the sun gear becomes too large in relation to the planet gears. As the ratio increases, the sun gear will become too low, reducing torque. The planetary gears also reduce their torque in high-speed environments. Consequently, the ratio is a crucial consideration for planetary gearbox condition monitoring.
Excess drag may result from out-of-tolerance components or excessive lubrication. Drag should be measured both in directions and be within acceptable ranges. Grease and oil lubrication are two common planetary gearbox lubricants, but the choice is largely dependent on your application. While grease lubricates planetary gears well, oil needs maintenance and re-lubrication every few thousand hours.


editor by CX 2023-10-23
China Standard ZD Changing Low Backlash Torque High Speed Ratio Machine Motor Planetary Gearbox bicycle planetary gearbox
Product Description
Model Selection
Planetar y gearbox is a kind of reducer with wide versatility. The inner gear adopts low carbon alloy steel carburizing quenching and grinding or nitriding process. Planetary gearbox has the characteristics of small structure size, large output torque, high speed ratio, high efficiency, safe and reliable performance, etc. The inner gear of the planetary gearbox can be divided into spur gear and helical gear.
• Model Selection
Our professional sales representive and technical team will choose the right model and transmission solutions for your usage depend on your specific parameters.
• Drawing Request
If you need more product parameters, catalogues, CAD or 3D drawings, please contact us.
• On Your Need
We can modify standard products or customize them to meet your specific needs.
Range Of Planetary Gearbox
Other Products
Company Profile
| Application: | Motor, Machinery, Marine, Agricultural Machinery |
|---|---|
| Function: | Change Drive Torque, Speed Changing, Speed Reduction |
| Hardness: | Hardened Tooth Surface |
| Installation: | Vertical Type |
| Type: | Planetary Gear Box |
| Size: | 60mm-160mm |
| Samples: |
US$ 100/Piece
1 Piece(Min.Order) | |
|---|
| Customization: |
Available
| Customized Request |
|---|

Planetary Gearbox
This article will explore the design and applications of a planetary gearbox. The reduction ratio of a planetary gearbox is dependent on the number of teeth in the gears. The ratios of planetary gearboxes are usually lower than those of conventional mechanical transmissions, which are mainly used to drive engines and generators. They are often the best choice for heavy-duty applications. The following are some of the advantages of planetary gearboxes.
planetary gearboxes
Planetary gearboxes work on a similar principle to solar systems. They rotate around a center gear called the sun gear, and two or more outer gears, called planet gears, are connected by a carrier. These gears then drive an output shaft. The arrangement of planet gears is similar to that of the Milky Way’s ring of planets. This arrangement produces the best torque density and stiffness for a gearbox.
As a compact alternative to normal pinion-and-gear reducers, planetary gearing offers many advantages. These characteristics make planetary gearing ideal for a variety of applications, including compactness and low weight. The efficiency of planetary gearing is enhanced by the fact that ninety percent of the input energy is transferred to the output. The gearboxes also have low noise and high torque density. Additionally, their design offers better load distribution, which contributes to a longer service life.
Planetary gears require lubrication. Because they have a smaller footprint than conventional gears, they dissipate heat well. In fact, lubrication can even lower vibration and noise. It’s also important to keep the gears properly lubricated to prevent the wear and tear that comes with use. The lubrication in planetary gears also helps keep them operating properly and reduces wear and tear on the gears.
A planetary gearbox uses multiple planetary parts to achieve the reduction goal. Each gear has an output shaft and a sun gear located in the center. The ring gear is fixed to the machine, while the sun gear is attached to a clamping system. The outer gears are connected to the carrier, and each planetary gear is held together by rings. This arrangement allows the planetary gear to be symmetrical with respect to the input shaft.
The gear ratio of a planetary gearbox is defined by the sun gear’s number of teeth. As the sun gear gets smaller, the ratio of the gear will increase. The ratio range of planetary gears ranges from 3:1 to ten to one. Eventually, however, the sun gear becomes too small, and the torque will fall significantly. The higher the ratio, the less torque the gears can transmit. So, planetary gears are often referred to as “planetary” gears.
Their design
The basic design of a Planetary Gearbox is quite simple. It consists of three interconnecting links, each of which has its own torque. The ring gear is fixed to the frame 0 at O, and the other two are fixed to each other at A and B. The ring gear, meanwhile, is attached to the planet arm 3 at O. All three parts are connected by joints. A free-body diagram is shown in Figure 9.
During the development process, the design team will divide the power to each individual planet into its respective power paths. This distribution will be based on the meshing condition of all gears in the system. Then, the design team will proceed to determine the loads on individual gear meshes. Using this method, it is possible to determine the loads on individual gear meshes and the shape of ring gear housing.
Planetary Gearboxes are made of three gear types. The sun gear is the center, which is connected to the other two gears by an internal tooth ring gear. The planet pinions are arranged in a carrier assembly that sets their spacing. The carrier also incorporates an output shaft. The three components in a Planetary Gearbox mesh with each other, and they rotate together as one. Depending on the application, they may rotate at different speeds or at different times.
The planetary gearbox’s design is unique. In a planetary gearbox, the input gear rotates around the central gear, while the outer gears are arranged around the sun gear. In addition, the ring gear holds the structure together. A carrier connects the outer gears to the output shaft. Ultimately, this gear system transmits high torque. This type of gearbox is ideal for high-speed operations.
The basic design of a Planetary Gearbox consists of multiple contacts that must mesh with each other. A single planet has an integer number of teeth, while the ring has a non-integer number. The teeth of the planets must mesh with each other, as well as the sun. The tooth counts, as well as the planet spacing, play a role in the design. A planetary gearbox must have an integer number of teeth to function properly.
Applications
In addition to the above-mentioned applications, planetary gearing is also used in machine tools, plastic machinery, derrick and dock cranes, and material handling equipments. Further, its application is found in dredging equipment, road-making machinery, sugar crystallizers, and mill drives. While its versatility and efficiency makes it a desirable choice for many industries, its complicated structure and construction make it a complex component.
Among the many benefits of using a planetary gearbox, the ability to transmit greater torque into a controlled space makes it a popular choice for many industries. Moreover, adding additional planet gears increases the torque density. This makes planetary gears suitable for applications requiring high torque. They are also used in electric screwdrivers and turbine engines. However, they are not used in everything. Some of the more common applications are discussed below:
One of the most important features of planetary gearboxes is their compact footprint. They are able to transmit torque while at the same time reducing noise and vibration. In addition to this, they are able to achieve a high speed without sacrificing high-quality performance. The compact footprint of these gears also allows them to be used in high-speed applications. In some cases, a planetary gearbox has sliding sections. Some of these sections are lubricated with oil, while others may require a synthetic gel. Despite these unique features, planetary gears have become common in many industries.
Planetary gears are composed of three components. The sun gear is the input gear, whereas the planet gears are the output gears. They are connected by a carrier. The carrier connects the input shaft with the output shaft. A planetary gearbox can be designed for various requirements, and the type you use will depend on the needs of your application. Its design and performance must meet your application’s needs.
The ratios of planetary gears vary depending on the number of planets. The smaller the sun gear, the greater the ratio. When planetary stages are used alone, the ratio range is 3:1 to 10:1. Higher ratios can be obtained by connecting several planetary stages together in the same ring gear. This method is known as a multi-stage gearbox. However, it can only be used in large gearboxes.
Maintenance
The main component of a planetary gearbox is the planetary gear. It requires regular maintenance and cleaning to remain in top shape. Demand for a longer life span protects all other components of the gearbox. This article will discuss the maintenance and cleaning procedures for planetary gears. After reading this article, you should know how to maintain your planetary gearbox properly. Hopefully, you can enjoy a longer life with your gearbox.
Firstly, it is important to know how to properly lubricate a planetary gearbox. The lubricant is essential as gears that operate at high speeds are subject to high levels of heat and friction. The housing of the planetary gearbox should be constructed to allow the heat to dissipate. The recommended oil is synthetic, and it should be filled between 30 and 50 percent. The lubricant should be changed at least every six months or as needed.
While it may seem unnecessary to replace a planetary gearbox, regular servicing will help it last a long time. A regular inspection will identify a problem and the appropriate repairs are needed. Once the planetary gearbox is full, it will plug with gear oil. To avoid this problem, consider getting the unit repaired instead of replacing the gearbox. This can save you a lot of money over a new planetary gearbox.
Proper lubrication is essential for a long life of your planetary gearbox. Oil change frequency should be based on oil temperature and operating speed. Oil at higher temperatures should be changed more frequently because it loses its molecular structure and cannot form a protective film. After this, oil filter maintenance should be performed every few months. Lastly, the gearbox oil needs to be checked regularly and replaced when necessary.


editor by CX 2023-04-19
China Best Sales ZD Spiral Bevel High Torque DC Gear Motor/Reducer Motor with Planetary gearbox near me shop
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ZD Chief has a vast range of micro motor production strains in the sector, like DC Motor, AC Motor, Brushless Motor, Planetary Gear Motor, Drum Motor, Planetary Gearbox, RV Reducer and Harmonic Gearbox and so on. By means of specialized innovation and customization, we support you develop excellent software systems and supply flexible answers for numerous industrial automation circumstances.
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Equipment Motor-Torque Table Allowance Torque Device:Upside (N.m)/Belowside (kgf.cm)
•Gearhead and Intermediate gearhead are marketed separately.
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•The speed is calculated by dividing the motor’s synchronous velocity by the reduction ratio. The actual speed is 2%~twenty% less than the shown benefit, relying on the measurement of the load.
•To reduce the speed CZPT the reduction ratio in the following desk, attach an intermediate gearhead (reduction ratio: 10) amongst the reducer and motor. In that situation, the permissible torque is 8N-m.
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A: We at the moment generate Brushed Dc Motors, Brushed Dc Gear Motors, Planetary Dc Gear Motors, Brushless Dc Motors, Stepper motors, Ac Motors and Higher Precision Planetary Equipment Box and so on. You can examine the requirements for earlier mentioned motors on our internet site and you can e mail us to recommend necessary motors for each your specification too.
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The Distinction In between Planetary Gears and Spur Gears
A spur equipment is a kind of mechanical drive that turns an exterior shaft. The angular velocity is proportional to the rpm and can be easily calculated from the gear ratio. Nevertheless, to effectively calculate angular velocity, it is necessary to know the number of teeth. The good news is, there are numerous various varieties of spur gears. This is an overview of their primary characteristics. This write-up also discusses planetary gears, which are smaller sized, a lot more strong, and more electricity-dense.
Planetary gears are a sort of spur gear
One of the most significant variances among planetary gears and spurgears is the way that the two share the load. Planetary gears are a lot much more efficient than spurgears, enabling large torque transfer in a modest space. This is due to the fact planetary gears have numerous enamel instead of just 1. They are also suitable for intermittent and continual operation. This article will go over some of the major benefits of planetary gears and their variances from spurgears.
Even though spur gears are far more straightforward than planetary gears, they do have some crucial variances. In addition to becoming a lot more fundamental, they do not call for any specific cuts or angles. Additionally, the tooth condition of spur gears is considerably far more intricate than these of planetary gears. The design determines exactly where the enamel make speak to and how a lot electricity is accessible. Nonetheless, a planetary equipment technique will be much more successful if the tooth are lubricated internally.
In a planetary equipment, there are a few shafts: a sunlight equipment, a earth provider, and an external ring equipment. A planetary gear is designed to enable the motion of one particular shaft to be arrested, while the other two work simultaneously. In addition to two-shaft operation, planetary gears can also be employed in a few-shaft functions, which are known as short term a few-shaft functions. Short term 3-shaft functions are feasible by means of frictional coupling.
Amid the several benefits of planetary gears is their adaptability. As the load is shared among numerous world gears, it is less difficult to swap gear ratios, so you do not require to obtain a new gearbox for each and every new software. An additional key advantage of planetary gears is that they are very resistant to large shock loads and demanding problems. This means that they are employed in numerous industries.
They are a lot more sturdy
An epicyclic gear practice is a variety of transmission that utilizes concentric axes for enter and output. This variety of transmission is typically utilised in cars with automatic transmissions, this kind of as a Lamborghini Gallardo. It is also utilized in hybrid automobiles. These kinds of transmissions are also far more strong than conventional planetary gears. Nonetheless, they demand a lot more assembly time than a standard parallel shaft equipment.
An epicyclic gearing technique has a few fundamental factors: an enter, an output, and a carrier. The number of enamel in each and every equipment decides the ratio of input rotation to output rotation. In some situations, an epicyclic equipment program can be produced with two planets. A third world, acknowledged as the carrier, meshes with the 2nd world and the sunshine gear to supply reversibility. A ring gear is created of numerous factors, and a planetary equipment may incorporate a lot of gears.
An epicyclic gear prepare can be built so that the earth gear rolls inside of the pitch circle of an outer fixed gear ring, or “annular gear.” In this kind of a situation, the curve of the planet’s pitch circle is referred to as a hypocycloid. When epicycle equipment trains are used in blend with a sunlight equipment, the planetary equipment prepare is made up of the two varieties. The sunlight equipment is normally mounted, although the ring gear is pushed.
Planetary gearing, also recognized as epicyclic equipment, is much more resilient than other varieties of transmissions. Since planets are evenly distributed around the sun, they have an even distribution of gears. Since they are a lot more robust, they can deal with larger torques, reductions, and overhung loads. They are also much more energy-dense and sturdy. In addition, planetary gearing is usually in a position to be converted to numerous ratios.
They are much more electrical power dense
The world equipment and ring equipment of a compound planetary transmission are epicyclic phases. One particular part of the planet equipment meshes with the sunlight equipment, even though the other portion of the equipment drives the ring gear. Coastline tooth flanks are utilized only when the equipment generate operates in reversed load route. Asymmetry factor optimization equalizes the make contact with anxiety safety elements of a planetary gear. The permissible contact pressure, sHPd, and the maximum operating speak to anxiety (sHPc) are equalized by asymmetry issue optimization.
In addition, epicyclic gears are generally smaller and call for much less space than helical types. They are typically employed as differential gears in velocity frames and in looms, in which they act as a Roper constructive allow off. They differ in the sum of overdrive and undergearing ratio they have. The overdrive ratio varies from fifteen p.c to forty percent. In contrast, the undergearing ratio ranges from .87:1 to sixty nine%.
The TV7-117S turboprop motor gearbox is the first identified application of epicyclic gears with asymmetric teeth. This gearbox was designed by the CZPT Corporation for the Ilyushin Il-114 turboprop aircraft. The TV7-117S’s gearbox arrangement consists of a very first planetary-differential phase with a few world gears and a second photo voltaic-type coaxial stage with 5 world gears. This arrangement gives epicyclic gears the optimum electricity density.
Planetary gearing is far more sturdy and power-dense than other sorts of gearing. They can stand up to increased torques, reductions, and overhung loads. Their special self-aligning houses also make them highly flexible in rugged programs. It is also a lot more compact and lightweight. In addition to this, epicyclic gears are simpler to manufacture than planetary gears. And as a reward, they are much significantly less high-priced.
They are more compact
Epicyclic gears are tiny mechanical products that have a central “sun” gear and one particular or more outer intermediate gears. These gears are held in a carrier or ring equipment and have several mesh issues. The method can be sized and speeded by dividing the necessary ratio by the number of tooth for every gear. This procedure is identified as gearing and is used in many sorts of gearing programs.
Planetary gears are also acknowledged as epicyclic gearing. They have input and output shafts that are coaxially organized. Each and every planet is made up of a equipment wheel that meshes with the sun equipment. These gears are small and effortless to manufacture. Another edge of epicyclic gears is their robust style. They are easily transformed into distinct ratios. They are also hugely productive. In addition, planetary gear trains can be developed to operate in a number of instructions.
An additional benefit of epicyclic gearing is their decreased dimensions. They are typically utilised for tiny-scale applications. The reduced cost is connected with the reduced producing time. Epicyclic gears need to not be manufactured on N/C milling equipment. The epicyclic carrier ought to be solid and tooled on a solitary-objective device, which has numerous cutters cutting via content. The epicyclic provider is smaller than the epicyclic equipment.
Epicyclic gearing programs consist of three fundamental components: an enter, an output, and a stationary component. The variety of teeth in every equipment determines the ratio of enter rotation to output rotation. Generally, these equipment sets are produced of 3 separate parts: the enter equipment, the output equipment, and the stationary part. Relying on the dimension of the enter and output equipment, the ratio amongst the two factors is higher than fifty percent.
They have larger equipment ratios
The variances in between epicyclic gears and standard, non-epicyclic gears are considerable for many diverse apps. In distinct, epicyclic gears have greater equipment ratios. The reason guiding this is that epicyclic gears need several mesh considerations. The epicyclic gears are designed to compute the variety of load application cycles per device time. The sun equipment, for illustration, is +1300 RPM. The planet equipment, on the other hand, is +1700 RPM. The ring equipment is also +1400 RPM, as determined by the amount of tooth in every equipment.
Torque is the twisting pressure of a gear, and the greater the equipment, the higher the torque. Nevertheless, because the torque is also proportional to the size of the equipment, greater radii outcome in reduced torque. In addition, scaled-down radii do not go automobiles more quickly, so the higher gear ratios do not move at freeway speeds. The tradeoff amongst speed and torque is the equipment ratio.
Planetary gears use a number of mechanisms to enhance the gear ratio. People employing epicyclic gears have multiple equipment sets, which includes a sunlight, a ring, and two planets. In addition, the planetary gears are primarily based on helical, bevel, and spur gears. In common, the larger gear ratios of epicyclic gears are exceptional to those of planetary gears.
Yet another example of planetary gears is the compound planet. This gear style has two distinct-sized gears on possibly finish of a common casting. The huge stop engages the sun while the more compact stop engages the annulus. The compound planets are occasionally necessary to accomplish smaller sized steps in gear ratio. As with any equipment, the right alignment of world pins is important for appropriate operation. If the planets are not aligned effectively, it could outcome in tough operating or premature breakdown.

