China Best Sales Planetary Gearbox \/Reduction Gears For Good Sale disadvantages of planetary gearbox

Model Number: 200#–313#
Gearing Arrangement: Planetary
Output Torque: 4.77—4760.86
Rated Power: 0.25–150HP
Input Speed: 1800(60Hz)/1500(50Hz)
Output Speed: 480—0.5
Housing Code: 200,280,300,300H,301,301H,303,305,307,309,313
Motor Power: 1/4HP,1/2HP,1HP,2HP,3HP,5HP,7.5HP,10HP,15HP,20HP,25HP,30HP,40HP,50HP,7
Ratio: 1:3.75–1:2422
Packaging Details: box
Port: GUANGZHUO/HangZhou

Planetary Gearbox /Reduction Gears For Good Sale

1,Characteristics of a planetary speed reducer
High torque,impact resistance:The method of motion of a planetary gear structure is different from
traditional parallel gears.Traditional gear rely on a small number of contact points between 2 gears
to squeeze as the driving force.where all the loading are concentrated on a few contacting surfaces,
making it easy to wear and crack the gears.But the planetary speed reducer has 6 gear contacting
surfaces with a larger area than can distribute the loading evenly over 360 degrees .Multiple gear surfaces
share the instantaneous impact loading evenly which make them more resistant to the impact from higher
torques,The housing and bearing parts will not be damaged and crack due to high loading,either.

1,Housing 2,Output Shaft 3,Oill Seal-Out Shaft 4,Bearing-Output Shaft 5,Sun Nut 6,Planetary Carrier7,Internal Gear Ring
8,Planetary Gear 9,Using Connected Section’s Gear 10,Needle Roller Pin 11,Sun Gear Input Shaft12,Snap Ring 13,Bearing-Input Shaft
14,Oill Seal-Input Shft 15,Input Flange 16,O-Ring 17,Bearing Plug 18,Key-Outptu Shaft19,Washer 20,Hex Socket Cap Screw

Small volume and light weight:Traditional design of geared speed reducers typically applies multiple sets of larger and small gears
to operate in a staggered pattern for power transmission and speed reduction,Because the reduction ratio needs to be generated
by the multiple of tooth numbers of the 2 gears,there must be a certain engaging clearance between larger and small gears.Therefore,
the required space for the gearbox is relatively large.Especially for the combination of a high-speed reduction ratio.which needs a combination
of more than 2 gearboxes and for which its structural strength will become relatively weak and enlarge its gearbox length,causing extremely
large volume and weight,The structure according to the required number of stages and realizes the multiple staged combination alone,Its small
volume,light weight and compact outline make the equipment look more valuable.

High efficiency and low back clearance:Because thereis only a single tooth surface engaged and contacted when each set of gears operates
to reduce speed,the stress on the tooth surface should be larger when transmitting the same torque,Therefore,the gear design should apply
larger module and thickness,The larger the module is,the larger the deviation tolerance between gear teeth,which create a relatively large gear
clearance and increases the accumulated back clearance for each stage of speed reduction.The unique characteristic of uniform engagement of
the planetary gear combination and arc enveloping structure of the external gear ring help with the robust engagement between the external
gear ring and planetary gear.With the highly robust engagement between gears,apart from improving the extremely high-speed reducer
efficiency,the equipment itself can be selected to meet the requirements of positioning in high precision.

2,Products Selection

3,Efficiency table of planetary speed reducer:

Stage Reduction Ratio Efficiency
L1 3.48-7.2 97%
L2 12.1-51.8 95%
L3 63-373 92%
L4 403-2687 90%

4,Type selection Table

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.


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.


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.

China Best Sales Planetary Gearbox \/Reduction Gears For Good Sale     disadvantages of planetary gearboxChina Best Sales Planetary Gearbox \/Reduction Gears For Good Sale     disadvantages of planetary gearbox