Product Description
Metal Planetary Gearbox 22mm with Motors for Automatic Teller Machine Driver
Note:
Metal Planetary Gearbox Diameter 22mm with Motors for Automatic Teller Machine Driver, Automatic Rotary Advertising
Main advantages:
1. Motor specs such as voltage, speed, torque, the shaft, packing can be customized.
2. As a gear reduction motor, it is very suitable for application that requires low rpm and high torque
3. High sealing: the output part is equipped with an oil seal and O-ring, which can prevent the lubrication grease backflow in the gearbox, and avoid the aging or damage of oil seal insulation.
4. High efficiency: using a new pressed silicon steel sheet, high precision core, strong magnetic permeability. The profile uses the new heat dissipation structure.
5. Applicability: Compact size, suitable for various operating environments.
Planetary gearbox advantages:
1) Low speed: 12 – 1650 rpm.
2) High torque: 0.05 kg.cm to 5 kg.cm.
3) Small vibration, low noise, low energy consumption.
Application:
Intelligent Monitoring, electrical scooter and mobility, power tools, medical instrument and equipment, ATM, Currency Handling,3D printers,
Gaming Machines, Video games, Cameras, Power toys, Coffee Machines, Food Processors, Ice Makers, Home Ventilation, Washers and Dryers, Refrigerators, Massagers, Drills and Drivers, Lawn Mowers, Snow Blowers, Trimmers, Leaf Blowers,
Parameter:
| Motor Electrical Specification | |||||||
| Series Model | VOLTAGE (V) | Step Angle ( o ) | Current (MA) | Locking torque | Insulation Resistance | Lead | Maximum response frequency |
| (G.cm) | Wire | ||||||
| (NO.) | ( PPS) | ||||||
| DC Step GearMotor D223P-030084-20SM01 |
12V | 18 | 600 | >=80 | >100M&Omega | 2 | >1200 |
| Gearbox Specification | |||||||
| Ratio | 1/84.3 | ||||||
| VOLTAGE (V) | 12 | ||||||
| Ratio Torque | 3 | ||||||
| (Kg.cm) | |||||||
| Efficiency | >=65% | ||||||
| (%) | |||||||
| output bearing | sleeve bearing | ||||||
| Rotation Direction | CW/CCW | ||||||
About Us:
I.CH was founded in 2006, located in HangZhou. We specialized in researching, developing, and servicing electric motors, gearbox, and high precision gears with the small module. After years of development, we have an independent product design and R&D team, service team, and a professional quality control team. To realize our service concept better, provide high-quality products and excellent service, we have been committed to the core ability and training. We have a holding factory in HangZhou, which produces high precision small mold gears, gear shaft, gearbox, and planetary gearbox assembling.
Our Product:
DC Gear Motor | DC Planetary Gear Motor
Planetary Gearbox | Spur Gearbox
Spur Gear | Helical Gear
Our Certificate:
As we all know, the success of the company is based on the quality of the motor. So, to get the acknowledgment in the market, we get RoHS, CE, ISO900 certificates.
Work-flow:
Service:
ODM & OEM
Gearbox design and development
Package&Ship:
Carton, pallet, or what you want
The delivery time is about 30-45 days.
Customer’s Visiting:
FAQ:
1. Can you custom gearbox?
YES. The specifications can be designed according to the customer’s requirements.
2. DO you provide the sample?
YES.
3. Do you provide technical support?
YES.we have an independent product design and R&D team, service team and professional quality control team.
4. Do you have a factory?
Yes, we are a professional manufacturer.
5. Can I come to your company to visit?
YES
Related Products:
| Brush DC Gear Motor | Planetary Gear Motor | Stepper Gear Motor |
| Application: | Automation Equipment, Household Appliances |
|---|---|
| Operating Speed: | Low Speed |
| Power Source: | DC Motor |
| Samples: |
US$ 15/Piece
1 Piece(Min.Order) | Order Sample |
|---|
| Customization: |
Available
| Customized Request |
|---|
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Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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| Payment Method: |
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|---|---|
|
Initial Payment Full Payment |
| Currency: | US$ |
|---|
| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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Types, Applications, and Lubrication of Planetary Gearboxes
A Planetary Gearbox is a device that can be used in a variety of applications. Their reduction ratios depend on the number of teeth in each gear. In this article, we will discuss the types, applications, and lubrication of planetary gearboxes. Hopefully, this article will be of help to you. If not, you can check out this article and discover more about this fascinating machine. There are many different types of planetary gearboxes.
Applications of planetary gearboxes
The planetary gearbox is a popular option for applications requiring precise positioning. Applications of the planetary gearbox range from plastic machinery to agricultural equipment, from goods & personnel lifts to industrial robotics. Some of the industries that benefit from this type of gearbox include robotics, intra-logistics, robotics for industrial automation, and medical equipment. Increasing automation is also fueling the growth of the industrial planetary gearbox market in APAC.
The compact design of planetary gears makes them excellent for reducing load inertia and maximizing torque. However, some applications require additional lubrication for sustained performance or high speeds. CZPT uses CZPT in its planetary gearboxes. In addition, lubrication prevents gear wear and minimizes noise and vibration. The planetary gearbox is also easy to install, thanks to its low-mass-inertia design.
Another application of the planetary gearbox is in axles and transfer cases. The planetary gear architecture consists of a sun gear, also called the central gear, and a ring-gear with internal teeth that are concentric to the sun gear. The two gears are connected via a carrier, and the output shaft is positioned on the ring-gear carrier. The gearbox can be configured in a variety of ways, depending on the speed-ratio requirements.
The planetary gear train is similar to that of a solar system. It comprises a sun gear and two or more outer gears, ring gear and carrier assembly. In this configuration, the outer gears are connected via a carrier and a ring gear. The planet gears are in constant mesh with each other, and power applied to one of these members will rotate the whole assembly. They are a very efficient choice for many applications.
Types
There are three types of planetary gearboxes, depending on their performance and efficiency. The basic model is highly efficient and transmits up to 97% of power input. Depending on the speed and torque that need to be transmitted, planetary gearboxes are used in many different applications. A planetary gearbox can reduce the speed of a roller or produce a more precise level of movement. Using a planetary gearbox for your printing press, for example, will maximize your gear transmission ratio.
This market research report analyzes the factors influencing the market for Planetary Gearboxes, as well as their sales and revenues. It also highlights industry trends and details the competitive landscape. It also provides a comprehensive analysis of the Planetary Gearbox industry and its drivers and restraints. It provides detailed information on the market size and future growth prospects. The study also includes an extensive discussion of the competitive landscape, identifying the top companies and key market players.
A planetary gearbox is often used to manufacture complicated machines. These gears are usually made of high-quality steel, which makes them extremely durable. Planetary gearboxes can also be used in the production of heavy machine elements. There are many benefits of a planetary gearbox, including its compactness and low mass inertia. The main advantage of a planetary gearbox is its ability to distribute torque. Compared to a normal gearbox, planetary gearboxes can provide torque that is nearly three times higher than its conventional counterpart.
The three main types of planetary gears are the single-stage, compound, and multi-stage. The general concept of a planetary gear is referred to as a compound planetary gear. This means that planetary gears are made up of one of these three basic structures: a meshed-planet structure, a shaft, and a multi-stage structure. This type of gear has multiple stages and is particularly useful for fast-dynamic laser cutting machines.
Design
A planetary gearbox is similar to a car’s transmission. All of its gears must have a certain number of teeth and be spaced equally apart. The teeth of a planet must mesh with the gears of the ring and sun to be functional. The number of teeth needed will depend on the number of planets and their spacing. This equation is a good starting point for designing a gearbox.
The dynamic properties of planetary gears are investigated using a parametric model. The stiffness of the mesh changes as the number of gear tooth pairs in contact varies during the gear rotation. Small disturbances in design realizations cause nonlinear dynamics, which results in noise and vibrations in the gear transmission. A mathematical system describing this process is developed using the basic principles of analytical mechanics. This mathematical model can be used to optimize any planetary gear.
This analysis assumes that the sun gear and planet gears have the same design modulus, which is a fundamental requirement of any mechanical gear. In reality, the ratio of these two gears is 24/16 versus -3/2. This means that a planetary gearbox’s output torque is 41.1 times the input torque. Considering this factor, we can make an accurate estimate of the total torque. The planetary gears are mounted face-to-face and connected to an electric motor.
A planetary gear set has to have a certain number of teeth that are odd or even. One way to overcome this issue is to double the number of teeth on the sun gear and the annulus gear. This will also solve irregularities. Another way to design a planetary gear set is to use the appropriate diametral pitch and module. There are many planetary gear sets available on the market, so it pays to understand the differences.
Lubrication
Lubrication for Planetary Gearboxes is important for the smooth functioning of the gear. Planetary gears are subjected to high levels of friction and heat, so they require regular lubrication. The gear housing is designed to dissipate heat away from the gear, but heat can still enter the gear, which can result in a poor lubrication condition. The best lubrication solution is synthetic oil, and the gear should be refilled with a minimum of 30 percent oil.
When lubricating a planetary gearbox, it is important to note that hydraulic oil is not suitable for planetary gearboxes, which cost over $1500. Hydraulic oil does not have the same viscosity and behavior with temperature fluctuations, making it less effective. The planetary gearbox may also overheat if a hose is not provided for case draining. A case drain hose is essential to prevent this from happening, because hot oil can cause overheating of the gearbox and damage to the gears.
Oil delivery conduits are positioned between each pair of planet gears. Each oil delivery conduit directs fresh oil toward the sun gear and the planet gear. The oil then disperses and exits from the gear train with considerable tangential velocity. The oil is redirected into a collection channel (56). The preferred embodiment uses herringbone gears, which pump oil axially outward into the channels.
The best way to choose the right type of lubrication is to consider its viscosity. Too high a viscosity will prevent the lubricant from flowing properly, which will cause metal-to-metal contact. The oil must also be compatible with the gearbox temperature. A suitable viscosity will increase the efficiency of the gearbox and prevent downtime. A reliable gearbox will ultimately result in higher profits and fewer costs.
Applications
This report examines the Industrial Planetary Gearbox Market and its current trends. It identifies the pre and post-COVID-19 effects of the industry. It outlines the advantages and disadvantages of the industrial planetary gearbox market. The report also explains the diverse financing resources and business models of the market. It includes the key players in the industry. Hence, it is essential to read this report carefully.
The report includes analysis and forecasts of the global market for planetary gearbox. It includes the product introductions, key business factors, regional and type segments, and end-users. It covers the sales and revenue of the market for each application field. The report also includes the regional and country-level market data. It also focuses on the market share of the key companies operating in the industry. It covers the competitive scenario in the global planetary gearbox market.
Another popular application for planetary gearboxes is in the toy industry. It is possible to design toys that look stunning with planetary gear systems. In addition to toys, clock makers also benefit from the planetary arrangement. In addition to producing a good-looking clock, this gearbox can reduce inertia and improve its efficiency. The planetary gearbox is easy to maintain, which makes it a good choice for clock applications.
In addition to traditional gear reductions, planetary gears are also used for 3D printing. Their huge gear ratio makes 3D printing easier. Furthermore, planetary gears are used to drive stepper motors, which turn much faster and produce a desired output. There are numerous industrial uses for planetary gearboxes. This article has explored a few of the most common ones. And don’t forget to explore their uses.


editor by CX 2023-10-25
China factory Wheel Rim Inner Gear Ring Sun Gear Planetary Gear for Beiben North Benz Truck Spare Parts CZPTCZPTCZPT Hongyan CZPT Truck Spare Parts gear box
Product Description
Product Description
wheel rim inner gear ring sun gear planetary gear FOR north benz beiben truck
PART NUMER:
AZWDH4502B57117A0
DZ1324144-1063-C-A01-C
52571
942315713
Our company specilize in dealing with all kinds of heavy duty truck parts,
from cab parts to chassis parts ,engine parts,gearbox parts,suspensiton parts,all kinds of engine mounting,bracket,leaf spring.We have factory to produce all kinds of alternator,starter,clutch plate,clutch cover,radiator,intercooler,can prodcue different size fuel tank according to customer requirement.
If you demand or are intersted in our products,please do not hesistate to contact with me,we will give best service with good quality and good price.Wish we can have long term copperation
Detailed Photos
OUR COMPANY SPEXIHU (WEST LAKE) DIS.ZE IN DEAL WITH ALL KINDS OF HEAY DUTY TRUCK PARTS FOR CHINAMFG J6 JH6
THE TRUCK PARTS COVER CABIN
PARTS, CHASSIS PARTS, ENGINE PARTS, GEARBOX PARTS, EXHAUST SYSTEM PARTS.
Packaging & Shipping
1. Packaging details: carton and wooden box packaging,woven bag,brown box, or
according to customer requirements.
2. Delivery Period: 7-30 working days after
receiving 30% deposit byTT
3. Port: HangZhou Port,China.
4. Transport: By sea, by
air,DHL,FEDEX,UPS,TNT,
FAQ
1.Q:About the payment term.
A: We can accept TT,LC,PAYPAL,WESTERNUION,and so on
2.Q:About the Quality and price
A: We supply good quality products to all our customers,give the competitive price.
3.Q:About the warranty period
A:At least half year, some parts are even longer.
4. Q:How to make order ?
A:Customer can contact us online,or send email with detail inquiry list,then we can reply soon
5.Q:About the discount
A:If the quantity large,we will give resonalbe discount.And for long time cooperation customer,we can give credit support
| After-sales Service: | Free Change for Quality Problem |
|---|---|
| Type: | Cab Bydraulic Lock |
| Package: | Standard Export Package |
| Model: | Az2280100155 |
| Delivery: | 3-10days |
| Quality: | Good Quality |

How does the size of a sun gear affect the gear ratio in planetary systems?
The size of the sun gear plays a significant role in determining the gear ratio in planetary gear systems. The gear ratio determines the relationship between the input speed and torque and the output speed and torque in the system. Here’s an explanation of how the size of the sun gear affects the gear ratio in planetary systems:
- Direct Proportion:
In a planetary gear system, the gear ratio is influenced by the relative sizes of the sun gear, planet gears, and ring gear. The gear ratio is typically expressed as the ratio of the output speed to the input speed or the ratio of the output torque to the input torque.
When considering the size of the sun gear, it is important to understand that the gear ratio is inversely proportional to the size of the sun gear. In other words, as the size of the sun gear increases, the gear ratio decreases, and vice versa.
- Power Distribution:
The size of the sun gear affects the power distribution within the planetary system. As the sun gear rotates, it engages with the planet gears, which, in turn, mesh with the ring gear. The interaction between these gears determines the gear ratio.
A larger sun gear allows for a higher number of teeth on the sun gear itself as well as on the planet gears. This means that each rotation of the sun gear will result in a smaller rotation of the planet gears and the ring gear. Consequently, a larger sun gear leads to a lower gear ratio, reducing the output speed and increasing the output torque.
- Torque Amplification:
Another factor influenced by the size of the sun gear is torque amplification. In planetary gear systems, the sun gear’s size affects the torque multiplication or reduction capabilities of the system.
With a larger sun gear, the system can provide higher torque output for a given input torque, resulting in torque amplification. This can be advantageous in applications where increased torque is required, such as during vehicle acceleration or heavy load conditions.
Conversely, a smaller sun gear reduces the torque output of the system, resulting in torque reduction. This can be useful in situations where a lower torque output is desired, such as when precise control is required or when operating in low-torque applications.
- Overall Gear Ratio Range:
The size of the sun gear also affects the overall gear ratio range that can be achieved in a planetary system. By varying the size of the sun gear relative to the other gears, different gear ratios can be achieved, allowing for a wider range of output speeds and torques.
For example, if a system requires a higher gear ratio range, a larger sun gear can be used in combination with appropriately sized planet gears and a ring gear. Conversely, if a lower gear ratio range is desired, a smaller sun gear can be employed.
It’s important to note that the size of the sun gear alone does not determine the gear ratio. The gear ratio is influenced by the combination of the sizes of all the gears within the planetary system.
In summary, the size of the sun gear in a planetary gear system has a direct impact on the gear ratio, power distribution, torque amplification, and overall gear ratio range. A larger sun gear results in a lower gear ratio, while a smaller sun gear leads to a higher gear ratio. The size of the sun gear, along with the sizes of the other gears, determines the performance characteristics of the planetary system.

What is the role of a sun gear in the operation of a differential gear system?
The sun gear plays a vital role in the operation of a differential gear system, which is commonly used in vehicles to distribute power between the wheels while allowing them to rotate at different speeds. The sun gear, along with other gears in the differential, contributes to the smooth and efficient operation of the system. Here’s an explanation of the role of a sun gear in the operation of a differential gear system:
- Power Input:
The sun gear serves as the input for the differential gear system. It receives torque from the driveshaft or propeller shaft, which transfers power from the engine or transmission to the differential. The rotation of the sun gear initiates the power flow within the differential assembly.
- Speed Differentiation:
The primary function of the differential gear system is to allow the wheels to rotate at different speeds while distributing power between them. The sun gear, along with the other gears in the differential, enables this speed differentiation.
As the sun gear rotates, it meshes with the planet gears, which are arranged around it. The planet gears, in turn, engage with the ring gear, which is connected to the axle shafts leading to the wheels. The interaction between the sun gear, planet gears, and ring gear allows the differential to accommodate different rotational speeds of the wheels.
- Distribution of Torque:
Another critical role of the sun gear is to distribute torque between the wheels in a differential system. The torque input from the sun gear is transmitted to the planet gears, which then transfer the torque to the ring gear and, subsequently, to the axle shafts and wheels.
As the differential operates, it adjusts the distribution of torque based on the traction and resistance encountered by each wheel. If one wheel experiences less resistance or has more traction than the other, the differential will allocate more torque to that wheel. This torque distribution helps optimize power delivery, improve traction, and enhance vehicle stability during cornering or uneven road conditions.
- Equal Torque Split (Open Differential):
In an open differential system, which is the most common type, the sun gear plays a role in equal torque split between the wheels under normal driving conditions. When both wheels have equal traction and resistance, the sun gear distributes torque equally to the planet gears, resulting in an equal torque split between the wheels.
However, in situations where one wheel loses traction or encounters less resistance, such as during wheel slip or when one wheel is on a slippery surface, the open differential will prioritize torque delivery to the wheel with less traction, potentially reducing overall traction and performance.
- Limited-Slip Differential:
In some differential systems, such as limited-slip differentials (LSDs), the sun gear’s role is modified to provide improved traction and torque distribution. LSDs use various mechanisms, such as clutch packs or viscous fluids, to limit the speed differentiation between the wheels and redirect torque to the wheel with more traction.
In LSDs, the sun gear’s engagement with the other gears is modified to allow for controlled torque transfer, enhancing traction and stability during challenging driving conditions.
In summary, the sun gear in a differential gear system serves as the power input and enables speed differentiation and torque distribution between the wheels. Its role is crucial for ensuring smooth power delivery, optimizing traction, and enhancing vehicle stability in various driving conditions.

Can you explain the role of a sun gear in planetary gear systems?
The sun gear plays a crucial role in planetary gear systems, contributing to their unique functionality and versatility. Understanding the specific role of the sun gear within these systems helps in comprehending their overall operation. Here’s an explanation of the role of a sun gear in planetary gear systems:
- Power Input: The sun gear serves as the primary power input element in a planetary gear system. It receives rotational motion and torque from an external source, such as an engine or motor. This power input is transmitted to other gears within the system.
- Engagement with Planet Gears: One of the distinctive features of a planetary gear system is the interaction between the sun gear and multiple planet gears. The planet gears are smaller gears that surround the sun gear and mesh with both the sun gear and an outer ring gear. This engagement allows for the transfer of torque and motion between the gears.
- Power Distribution: As the sun gear rotates, it transmits torque to the planet gears through their meshing teeth. The planet gears, in turn, transfer the torque to the outer ring gear. This power distribution mechanism enables the sharing of torque among multiple gears within the system, allowing for load distribution and efficient power transmission.
- Gear Ratio Control: By changing the arrangement and sizes of the sun gear, planet gears, and ring gear, planetary gear systems can achieve different gear ratios. The number of teeth on the sun gear, planet gears, and ring gear, as well as their relative sizes, determine the gear ratio. This flexibility in gear ratio control enables planetary gear systems to provide various output speeds and torque levels, catering to different operational requirements.
- Torque Amplification: A key advantage of planetary gear systems is their ability to amplify torque. By employing a combination of the sun gear, planet gears, and ring gear, torque can be multiplied or reduced depending on the gear ratio configuration. This torque amplification feature is beneficial in applications where high torque output is required, such as automotive transmissions and heavy machinery.
- Directional Control: Another notable aspect of planetary gear systems is their directional control capability. By fixing or holding the sun gear while the ring gear or planet carrier is driven, the gear system can achieve different output directions, such as forward or reverse rotation. This directional control adds versatility to gear systems, enabling them to be used in various mechanical applications.
In summary, the sun gear in planetary gear systems serves as the power input element, engages with planet gears, distributes torque, controls gear ratios, provides torque amplification, and enables directional control. Its role is essential in achieving efficient power transmission, versatile gear ratios, and adaptable functionality in a wide range of mechanical applications.


editor by CX 2023-10-25
China best Excavator Parts Excavator Gear 11213989 Voe14547279 Sun Gear for CZPT LG Excavator Ec290c Ec290b Ec300d hypoid bevel gear
Product Description
Detailed Photos
| Construction Machines Excavator Parts Sun Gear VOE14547279 For EC290C EC3 | |
| Related Parts | Excavator Spare Parts |
| Packing | Standard Export Packing |
| MOQ | 1 Piece |
| Applicable Industries | Machinery Repair Shops, Retail, Construction works |
| Supply Ability | 1 |
| Part name | gear |
| Applicable machine | EC290C EC290B EC300D |
Other products
WHY CHOOSE US
1.More than 10 years experience in excavator spare parts field;
2.We are experts in CHINAMFG excavator parts and have in this industry since 2571
3.Original parts from suppliers with ensured and high quality;
4.Large range of spare parts scope for excavators;
5.Have parts in stock and give you short lead time;
6.Reasonable and competitive price;
Company Profile
HangZhou Junchi construction machinery Co., Ltd. is located in HangZhou logistics capital of China. We are a dealer specialized in excavator accessories, excavator parts genuine accessories one-stop shopping center. We provide all types of Volvo/LG/PC excavator spare parts for all kinds of excavator models.
It is convenient for you to buy all parts for Volvo/LG/PC excavators together.
JUNCHI is our own brand, which integrates our industry experience over the years to provide you with products with better prices and higher quality. We are committed to meeting all your needs for excavator parts and providing you with the most perfect excavator parts solution. Use the best quality and the most competitive price to obtain long-term cooperation with customers.
We sincerely hope to cooperate with all people around the world and welcome your visit to our company, In the meanwhile, we believe that through our continuous perfecting service system and technique, you can possess the world’s best products with the world’s first – class service!
About Us
Factory
Our Warehouse
Packing and shipment
Our Advantage:
1 We have many highly qualified engineers and sale managers, with wide and specific knowledge in the sale, and repair of construction machines, the sales team prides itself on its knowledge of heavy machinery coupled with exemplary after sales service .
2 We have our transfer warehouse for all the spare parts, the warehouse is about 2000 square meter, hold about USD5,000,000.00 spare parts anytime.
3 we have high-efficient logistics operation system,which ensure shipment is on time and right.
4 our product is all over the world.
5 we hope create the future together with every Volvo/LG/PC machine customers.
FAQ
1.If I only know the excavator model, but can not offer parts No., what should I do ?
If possible, you can provide pictures of old products, nameplate or size of the parts.
2.How can I pay the order?
We can receive payment through T/T, L/C, Western Union.
3.When will get the items after I place order?
Once we receive your payment, we will deliver the goods within 24 hours; if not in stock , we will communicate with you before placing orders.
4.How can I do if there is something wrong with the items?
First of all ,we can assure the quality of our products ,if you really found something wrong ,pls provide pictures for us and we will check. After it is confirmed, pls return to us , we will offer the correct item.
5.What is your main products ?
We are specialized in excavator spare parts, such as engines/or parts, undercarriage parts, electronic parts, hydraulic parts , covering parts, attachments and so on. If you need other excavator parts, we also can supply as your requirements
| After-sales Service: | Online Support |
|---|---|
| Warranty: | 6 Months |
| Type: | Bearing |
| Application: | Excavator |
| Certification: | CE, ISO9001: 2000 |
| Condition: | New |
| Samples: |
US$ 61/Piece
1 Piece(Min.Order) | |
|---|
| Customization: |
Available
| Customized Request |
|---|

Can sun gears be used in automotive applications?
Sun gears are widely used in various automotive applications, playing crucial roles in different systems. Let’s explore the automotive applications where sun gears are commonly employed:
- Automatic Transmissions:
Sun gears are integral components of automatic transmissions in vehicles. Automatic transmissions use planetary gear systems, where the sun gear is one of the key elements. The interaction between the sun gear, planet gears, and ring gear allows for different gear ratios and smooth shifting between gears.
In automatic transmissions, the sun gear is driven by the engine’s input shaft and transmits power to the other gears. By controlling the engagement of various clutches and brakes within the transmission, the sun gear enables seamless gear changes, optimizing vehicle performance and fuel efficiency.
- Transfer Cases:
In four-wheel-drive and all-wheel-drive vehicles, transfer cases distribute power between the front and rear wheels. Sun gears are utilized in transfer cases to facilitate power transfer and gear reduction.
The sun gear, along with other gears and components, helps control the torque distribution and gear ratios between the front and rear axles. This allows vehicles to adapt to different driving conditions, such as slippery surfaces or off-road terrain, enhancing traction and stability.
- Starter Motors:
Sun gears are employed in starter motors, which are responsible for cranking the engine during startup. Starter motors use a gear reduction mechanism to convert the electric motor’s high-speed rotation into a higher torque output.
The sun gear, along with other gears like the planetary gears, enables the gear reduction necessary to generate sufficient torque to crank the engine. This gearing arrangement allows for efficient and reliable engine starting, even in challenging conditions.
- Power Seats and Windows:
Sun gears can also be found in power seat and power window mechanisms in vehicles. These systems use electric motors to adjust seat positions or operate windows.
The sun gear, along with other gears and mechanisms, converts the rotational motion of the electric motor into linear movement, enabling precise adjustments of seat positions or smooth operation of windows. The use of sun gears ensures reliable and efficient functionality of these systems.
- Other Automotive Systems:
Sun gears may also have applications in other automotive systems. For example, they can be found in power steering systems, where they contribute to the gear reduction and power transmission required for smooth steering operation.
Furthermore, sun gears can be utilized in various auxiliary systems, such as cooling fans, HVAC (heating, ventilation, and air conditioning) systems, and engine accessories. These applications leverage the sun gear’s ability to facilitate power transmission and gear reduction, enhancing the efficiency and performance of these systems.
In summary, sun gears are extensively used in automotive applications, including automatic transmissions, transfer cases, starter motors, power seats and windows, power steering systems, and auxiliary systems. Their presence in these systems enables crucial functions such as gear shifting, power distribution, gear reduction, and efficient power transmission. Sun gears contribute to the overall performance, reliability, and functionality of automotive systems, enhancing the driving experience and vehicle efficiency.

What is the role of a sun gear in the operation of a differential gear system?
The sun gear plays a vital role in the operation of a differential gear system, which is commonly used in vehicles to distribute power between the wheels while allowing them to rotate at different speeds. The sun gear, along with other gears in the differential, contributes to the smooth and efficient operation of the system. Here’s an explanation of the role of a sun gear in the operation of a differential gear system:
- Power Input:
The sun gear serves as the input for the differential gear system. It receives torque from the driveshaft or propeller shaft, which transfers power from the engine or transmission to the differential. The rotation of the sun gear initiates the power flow within the differential assembly.
- Speed Differentiation:
The primary function of the differential gear system is to allow the wheels to rotate at different speeds while distributing power between them. The sun gear, along with the other gears in the differential, enables this speed differentiation.
As the sun gear rotates, it meshes with the planet gears, which are arranged around it. The planet gears, in turn, engage with the ring gear, which is connected to the axle shafts leading to the wheels. The interaction between the sun gear, planet gears, and ring gear allows the differential to accommodate different rotational speeds of the wheels.
- Distribution of Torque:
Another critical role of the sun gear is to distribute torque between the wheels in a differential system. The torque input from the sun gear is transmitted to the planet gears, which then transfer the torque to the ring gear and, subsequently, to the axle shafts and wheels.
As the differential operates, it adjusts the distribution of torque based on the traction and resistance encountered by each wheel. If one wheel experiences less resistance or has more traction than the other, the differential will allocate more torque to that wheel. This torque distribution helps optimize power delivery, improve traction, and enhance vehicle stability during cornering or uneven road conditions.
- Equal Torque Split (Open Differential):
In an open differential system, which is the most common type, the sun gear plays a role in equal torque split between the wheels under normal driving conditions. When both wheels have equal traction and resistance, the sun gear distributes torque equally to the planet gears, resulting in an equal torque split between the wheels.
However, in situations where one wheel loses traction or encounters less resistance, such as during wheel slip or when one wheel is on a slippery surface, the open differential will prioritize torque delivery to the wheel with less traction, potentially reducing overall traction and performance.
- Limited-Slip Differential:
In some differential systems, such as limited-slip differentials (LSDs), the sun gear’s role is modified to provide improved traction and torque distribution. LSDs use various mechanisms, such as clutch packs or viscous fluids, to limit the speed differentiation between the wheels and redirect torque to the wheel with more traction.
In LSDs, the sun gear’s engagement with the other gears is modified to allow for controlled torque transfer, enhancing traction and stability during challenging driving conditions.
In summary, the sun gear in a differential gear system serves as the power input and enables speed differentiation and torque distribution between the wheels. Its role is crucial for ensuring smooth power delivery, optimizing traction, and enhancing vehicle stability in various driving conditions.

Can you explain the role of a sun gear in planetary gear systems?
The sun gear plays a crucial role in planetary gear systems, contributing to their unique functionality and versatility. Understanding the specific role of the sun gear within these systems helps in comprehending their overall operation. Here’s an explanation of the role of a sun gear in planetary gear systems:
- Power Input: The sun gear serves as the primary power input element in a planetary gear system. It receives rotational motion and torque from an external source, such as an engine or motor. This power input is transmitted to other gears within the system.
- Engagement with Planet Gears: One of the distinctive features of a planetary gear system is the interaction between the sun gear and multiple planet gears. The planet gears are smaller gears that surround the sun gear and mesh with both the sun gear and an outer ring gear. This engagement allows for the transfer of torque and motion between the gears.
- Power Distribution: As the sun gear rotates, it transmits torque to the planet gears through their meshing teeth. The planet gears, in turn, transfer the torque to the outer ring gear. This power distribution mechanism enables the sharing of torque among multiple gears within the system, allowing for load distribution and efficient power transmission.
- Gear Ratio Control: By changing the arrangement and sizes of the sun gear, planet gears, and ring gear, planetary gear systems can achieve different gear ratios. The number of teeth on the sun gear, planet gears, and ring gear, as well as their relative sizes, determine the gear ratio. This flexibility in gear ratio control enables planetary gear systems to provide various output speeds and torque levels, catering to different operational requirements.
- Torque Amplification: A key advantage of planetary gear systems is their ability to amplify torque. By employing a combination of the sun gear, planet gears, and ring gear, torque can be multiplied or reduced depending on the gear ratio configuration. This torque amplification feature is beneficial in applications where high torque output is required, such as automotive transmissions and heavy machinery.
- Directional Control: Another notable aspect of planetary gear systems is their directional control capability. By fixing or holding the sun gear while the ring gear or planet carrier is driven, the gear system can achieve different output directions, such as forward or reverse rotation. This directional control adds versatility to gear systems, enabling them to be used in various mechanical applications.
In summary, the sun gear in planetary gear systems serves as the power input element, engages with planet gears, distributes torque, controls gear ratios, provides torque amplification, and enables directional control. Its role is essential in achieving efficient power transmission, versatile gear ratios, and adaptable functionality in a wide range of mechanical applications.


editor by CX 2023-10-24
China best CZPT Brand Inline Straight Planetary Gear Speed Reducer, Gearmotor, Gearboxes Coupled with ABB Hydraulic Motor planetary gearbox definition
Product Description
Product Description
SGR planetary gear motor
Technical data:
1. Ratio range: 8.1-191
2. Input power: 0.12-270 KW
3. Permit torque rang: ≤ 50000 N. M
4. Output speed: 0.3~205 r/min
5. Structure: Foot-mounted, flange-mounted, shaft-mounted
| Input structure | motor,IEC flange |
| Output speed | solid shaft, hollow shaft with key,with shrink disk |
Characteristic:
1. Adopt optimized design, module combination, right angle output, space reduction
2. High strength and longevity gears
3. Can be combined with various motors, wider ratio range
4. Big output torque, smoothly startup, high efficiency
Production pictures:
Packing Pictures :
Factory
———————————————————————————————————————————————
FAQ:
1.Are you a factory or trader ?
We are a professional factory which has 20 years history specialized in gear transmission .
2.MOQ:
Our MOQ is 1pcs. However there is 1 handling cost $150 for the single order which less than $3000.00
3. Warranty
Our warranty is 12months
4. Payment term
100% T/T in advance and LC at sight .
5. Do you accept customization ?
YES.SGR have strong R&D team, we can provide customizable service according to requirements.
6. Packing
Generally we use standard export plywood case to arrange the shipment .
7. Delivery time
In normal ,time of delivery is 30days after receiving the prepayment .
8. What kinds of certification do you use ?
DNV-ISO9001:2008, SGS,CE etc, And new products patent.
9. What kinds of inspection you do before shipment ?
We do temperature test, noise, and oil leak inspection and commissioning before shipment.
10.How do you solve if the production have problem ?
Mostly, we don’t need customer send the goods back to us. Because the cost is very high, if there meets a problem,we firstly ask for the pictures for damaged parts. And base on the pictures, we can have a basic idea for the defect reason. Our guarantee is 12 months, if during the guarantee, we can supply repair .
| Application: | Motor, Machinery |
|---|---|
| Function: | Distribution Power, Change Drive Torque, Speed Reduction |
| Layout: | Coaxial |
| Hardness: | Hardened Tooth Surface |
| Installation: | Horizontal Type |
| Step: | Single-Step |
| Samples: |
US$ 200/Piece
1 Piece(Min.Order) | |
|---|
| 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 Best Sales Custom Powder Metallurgy Sun Gear with high quality
Product Description
Custom powder metallurgy sun gear for planetary gearbox
Why Powdered Metals?
Significant cost savings.
Create complex or unique shapes.
No or minimal waste during production.
High quality finished products.
Strength of materials.
Production process of powder metallurgy
Powder mixing – Forming – Sintering – Oil impregnation – Sizing -Ultrasonic cleaning – Steam oxidation – Oil impregnation – Final inspection – Packing
Company Profile
JINGSHI established in 2007
Manufacturer & Exporter
Exacting in producing powder metallurgy gears and parts
Passed ISO/TS16949 Quality Certificate
Advanced Equipment
Numbers senior R & D engineers and Skilled operators
Precise Examination Instruments.
Strict Quality Control
With the “More diversity, More superior, More professional ” business purposes, we are committed to establish long-term friendship and CHINAMFG relationship with domestic and international customers to create a bright future .
Certification
Just contact with us with 2D or 3D drawing to start our cooperation!
| Application: | Motor, Electric Cars, Motorcycle, Machinery, Toy, Agricultural Machinery |
|---|---|
| Hardness: | Hardened Tooth Surface |
| Gear Position: | External Gear |
| Manufacturing Method: | Sintered Gear |
| Toothed Portion Shape: | Spur Gear |
| Material: | Cast Steel |
| Samples: |
US$ 1/Piece
1 Piece(Min.Order) | |
|---|
| Customization: |
Available
| Customized Request |
|---|

How does a sun gear contribute to changes in torque direction in gear systems?
A sun gear plays a crucial role in gear systems when it comes to changing the direction of torque. Let’s delve into the details of how a sun gear contributes to torque direction changes in gear systems:
- Planetary Gear Systems:
In planetary gear systems, the sun gear is one of the primary components along with the planet gears and the ring gear. These systems consist of one or more planet gears that mesh with both the sun gear and the ring gear. The arrangement of these gears allows for various torque direction changes.
- Torque Transmission:
The sun gear acts as a central driver in a planetary gear system. As power is applied to the sun gear, it transmits torque to the planet gears. The planet gears, in turn, engage with the ring gear, which ultimately transfers the torque to the output shaft or the desired component.
When the sun gear rotates in a specific direction, it imparts torque to the planet gears. The planet gears, due to their meshing with the stationary ring gear, distribute the torque evenly across all the gears. This torque transmission mechanism allows for the transfer of rotational force from the input (sun gear) to the output (ring gear or output shaft) of the system.
- Direction Reversal:
The unique configuration of a planetary gear system allows for torque direction changes. By manipulating the relative sizes and arrangements of the gears, including the sun gear, it is possible to reverse the direction of the torque output.
For instance, when the sun gear serves as the input and rotates clockwise, it causes the planet gears to rotate counterclockwise. This counterclockwise rotation, in turn, causes the ring gear to rotate in the clockwise direction, resulting in a torque reversal.
Similarly, by reversing the direction of the sun gear’s rotation, the torque direction can be reversed once again. This ability to change the torque direction makes planetary gear systems versatile and applicable in various mechanical and automotive applications.
- Torque Amplification and Reduction:
Another way the sun gear contributes to torque direction changes is through torque amplification and reduction. By incorporating different gear ratios within the planetary gear system, it is possible to alter the torque output relative to the input.
A specific arrangement of gear sizes, including the sun gear, can result in torque amplification. Torque amplification occurs when the output torque is greater than the input torque. This configuration can be beneficial in applications where increased torque is required, such as in heavy machinery or vehicles.
Conversely, torque reduction can be achieved by utilizing different gear ratios. By adjusting the sizes of the gears, including the sun gear, the output torque can be lower than the input torque. Torque reduction is useful in situations where precision control or lower torque output is necessary, such as in robotics or delicate machinery.
- Overall Torque Control:
The sun gear’s contribution to torque direction changes in gear systems provides a means of overall torque control. By manipulating the rotation direction and gear ratios, the torque can be directed, amplified, or reduced according to the specific requirements of the application.
Engineers and designers can utilize the sun gear, along with other gears in the system, to achieve the desired torque direction, torque amplification or reduction, and mechanical power transmission within gear systems.
In conclusion, the sun gear is a critical component in gear systems for changing torque direction. It enables torque transmission, facilitates torque direction reversal, contributes to torque amplification or reduction, and provides overall torque control within planetary gear systems and other similar gear configurations.

Can sun gears be used in high-torque applications?
Sun gears can indeed be used in high-torque applications and are commonly employed in various mechanical systems that require substantial torque transmission. The design and characteristics of sun gears make them capable of handling significant torque loads. Here’s an explanation of why sun gears can be used in high-torque applications:
- Central Positioning: Sun gears are typically located at the center of planetary gear arrangements. This central positioning allows them to distribute torque to multiple planet gears, which then transfer the torque to the outer ring gear. The central position of the sun gear enables efficient torque transmission and load sharing among the gears, making it suitable for handling high-torque applications.
- Torque Amplification: The arrangement of sun gears in a planetary gear system allows for torque amplification. By utilizing the interaction between the sun gear, planet gears, and ring gear, the gear system can multiply or reduce torque based on the gear ratio configuration. In high-torque applications, this torque amplification capability of sun gears is advantageous as it allows for the multiplication of input torque, resulting in higher torque output.
- Sturdy Construction: Sun gears are designed to withstand high torque forces. They are usually made from durable materials such as hardened steel or other alloys with high tensile strength. This robust construction ensures that sun gears can effectively handle the transmitted torque without experiencing excessive wear or deformation.
- Load Distribution: The interaction between the sun gear, planet gears, and ring gear in a planetary gear system enables effective load distribution. By distributing the torque across multiple planet gears, the load is shared, reducing the stress on individual gears. This load distribution mechanism enhances the overall durability and torque-handling capacity of the gear system, making it suitable for high-torque applications.
- Customizable Gear Ratios: Sun gears in planetary systems allow for the customization of gear ratios. By changing the number of teeth on the sun gear, planet gears, and ring gear, as well as their relative sizes, the gear ratio can be tailored to meet specific application requirements. This flexibility in gear ratio control enables the optimization of torque output for high-torque applications.
In summary, sun gears can be effectively used in high-torque applications due to their central positioning, torque amplification capability, sturdy construction, load distribution mechanism, and customizable gear ratios. These characteristics make sun gears reliable and suitable for transmitting substantial torque in various mechanical systems.

Can you explain the role of a sun gear in planetary gear systems?
The sun gear plays a crucial role in planetary gear systems, contributing to their unique functionality and versatility. Understanding the specific role of the sun gear within these systems helps in comprehending their overall operation. Here’s an explanation of the role of a sun gear in planetary gear systems:
- Power Input: The sun gear serves as the primary power input element in a planetary gear system. It receives rotational motion and torque from an external source, such as an engine or motor. This power input is transmitted to other gears within the system.
- Engagement with Planet Gears: One of the distinctive features of a planetary gear system is the interaction between the sun gear and multiple planet gears. The planet gears are smaller gears that surround the sun gear and mesh with both the sun gear and an outer ring gear. This engagement allows for the transfer of torque and motion between the gears.
- Power Distribution: As the sun gear rotates, it transmits torque to the planet gears through their meshing teeth. The planet gears, in turn, transfer the torque to the outer ring gear. This power distribution mechanism enables the sharing of torque among multiple gears within the system, allowing for load distribution and efficient power transmission.
- Gear Ratio Control: By changing the arrangement and sizes of the sun gear, planet gears, and ring gear, planetary gear systems can achieve different gear ratios. The number of teeth on the sun gear, planet gears, and ring gear, as well as their relative sizes, determine the gear ratio. This flexibility in gear ratio control enables planetary gear systems to provide various output speeds and torque levels, catering to different operational requirements.
- Torque Amplification: A key advantage of planetary gear systems is their ability to amplify torque. By employing a combination of the sun gear, planet gears, and ring gear, torque can be multiplied or reduced depending on the gear ratio configuration. This torque amplification feature is beneficial in applications where high torque output is required, such as automotive transmissions and heavy machinery.
- Directional Control: Another notable aspect of planetary gear systems is their directional control capability. By fixing or holding the sun gear while the ring gear or planet carrier is driven, the gear system can achieve different output directions, such as forward or reverse rotation. This directional control adds versatility to gear systems, enabling them to be used in various mechanical applications.
In summary, the sun gear in planetary gear systems serves as the power input element, engages with planet gears, distributes torque, controls gear ratios, provides torque amplification, and enables directional control. Its role is essential in achieving efficient power transmission, versatile gear ratios, and adaptable functionality in a wide range of mechanical applications.


editor by CX 2023-10-23
China factory Concrete Mixer Pmb6r100 Pmb6.5r120 Pmb7r130 Pmb7.5r Hydraulic Planetary Gearbox for Sales planetary gearbox buy online
Product Description
Concrete Mixer PMB6R100 PMB6.5R120 PMB7R130 PMB7.5R Hydraulic Planetary Gearbox For Sales
The reducer for concrete mixer trucks is used in the transmission system of concrete mixer trucks.
The reducer adopts planetary gear transmission, which has the characteristics of stable torque driving, compact structure, less maintenance and long service life. The reduction gear body can be bolted to the mounting bracket of the frame or directly connected to the frame and connected to the drum through the output flange. The output flange allows for a certain angle of oscillation in all directions to meet the requirements of various complex conditions. This reducer acts as a front support for the drum and drives the drum to rotate through the output flange.
We could supply the CZPT hydraulic pump and motor, also the inner spare parts as below model:
1 A8VO: A8VO55,A8VO80,A8VO107,A8VO160
2,A2FO: A2FO5 A2FO10 A2F12 A2FO16 A2FO23,A2FO28,A2FO32,A2FO45,A2FO56,A2FO63 A2FO80
3,A4VSO: A4VSO40,A4VSO45,A4VSO56,A4VSO71,A4VSO125,A4VSO180,A4VSO250,A4VSO500,
4,A4VG: A4VG28,A4VG45,A4VG50,A4VG56,A4VG71,A4VG125,A4VG180,A4VG250
5,A6V: A6V55,A6V80,A6V107,A6V160,A6V225,A6V250
6,A7V: A7V16,A7V28,A7V55,A7V80,A7V107,A7V160,A7V200,A7V250
7,A8V: A8V55,A8V80,A8V107,A8V115,A8V172
8,A10VSO: A10VSO10,A10VSO18 A10VSO28,A10VSO43,A10VSO45,A10VSO71,A10VSO100,A10VSO140
9,A10VD: A10VD17,A10VD21,A10VD28,A10VD43,A10VD71
10,A11V: A11V50 A11V90 A11V130,A11V145 A11V160,A11V190,A11V250
11,PVV,PV7: PV2.PVV4.PVV5.PVV21.PVV41.PVV42.PVV51.PVV52.PVV54,PV7-1X,PV7-2X
12,PGF,PGH,PGP: GF1-2X,PGF2-2X,PGF3-3X,PGH2-2X,PGH3-2X,PGH4-2X,PGH5-2X,PGP2-2X,PGP3-3X
13 Others: AP2D21,AP2D25,AP2D36,AP2D38
| Usage | Concrete Mixer |
FAQ
Q:What Is Our Main Application?
A:1.Hydraulic system
2.Agriculture machine
3.Construction machina
4.Automobile
5.Local distributors
Q:What Is The Payment Terms?
A:Full order:30% as desposit, the balance before shipment:
Small order /sample ordre: full payment in advance:
Q:Can I Mark My Own Brand On The Pump?
A:Yes. Full order can mark your brand and code.
Q:What Is Our Main Export Market?
A:Europe (41.7%):Italy,Germany,England,France,Holland,Greece,Spain,Portugal,Swissland,Finland,Czekh,Russia,Poland
Asia(40.5%):China,Korea,Singapore,India,Turkey,Iran,Vietnam,Saudi Arabia,Syria,Isreal,Lebanon
| Application: | Agricultural Machinery, Concrete Mixer |
|---|---|
| Function: | Speed Reduction |
| Layout: | Cycloidal |
| Hardness: | Soft Tooth Surface |
| Installation: | Vertical Type |
| Step: | Single-Step |
| 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 2023-10-22
China Custom 857465 F55 F80 F100 F130 F180 F220 Gruppo Carraro CZPT Travel Drive Final Frive Planetary O&K Antriebstechnik Gearbox diy planetary gearbox
Product Description
857465-5719 F40 F55 F80 F1-5719 327532 857465 travel drive final drive Planetary GRUPPO CARRARO O&K Antriebstechnik Bonfiglioli Drives and gearbox for Construction Equipment applications When it comes to advanced modular powertrain components, O&K Antriebstechnik is acknowledged to be foremost. Decades of experience in engineering sophisticated drives & gearboxes have benefited a wide range of customers.
Today O&KA is 1 of the world´s leading producers of planetary drives.
As a competence centre within the Carraro Group, the company develops final drives, slew drives, cutter drives for mobile applications as well as drives for wind generators, walkways and escalators.
Ever shrinking dimensions enable the units to be installed wherever space is of the essence. The vast array of standard reductions and add-on hydraulic motors allows O&K Antriebstechnik to provide individual product configurations, while remarkable flexibility allows customer wishes to be met in a very short time.
This is the result of an oustanding & deep knowlegde in terms of Research & Development. O&KA means quality & technology from Germany.
Details regarding the choice of hydraulic fluid:
The correct choice of hydraulic fluid requires knowledge of the operating temperature in relation to the ambient temperature: in a closed circuit the circuit temperature. The hydraulic fluid should be chosen so that the operating viscosity in the operating temperature range is within the optimum range – the shaded area of the selection diagram. We recommended that the higher viscosity class be selected in each case. Example: At an ambient temperature of X °C an operating temperature of 58 °C is set. In the optimum operating viscosity range (shaded area) this corresponds to the viscosity classes VG46 or VG66; to be selected: VG66. Please note: The case drain temperature, which is affected by pressure and speed, is always higher than the circuit temperature. At no point in the system may the temperature be higher than 110 °C. If the above conditions cannot be maintained due to extreme operating parameters, please consult us.
| Application: | Motor, Machinery, Marine, Agricultural Machinery |
|---|---|
| Type: | Planetary Gear Reducer |
| Brand: | Bonfiglioli |
| Transport Package: | Plywood Case |
| Customization: |
Available
| Customized Request |
|---|

How to Select a Planetary Gearbox for Your Applications
You can select the most suitable Planetary Gearbox for your applications after carefully checking the various features. You should also consider secondary features like noise level, corrosion resistance, construction, price, delivery time and service. You should also check if the constructor is available across the world, because some constructors operate faster than others. Some constructors even respond to your requests on the same day, while others deliver each planetary gearbox even if they are out of stock.
CZPT gearbox
An CZPT planetary gearbox is a high-quality, compact, and lightweight gearbox that distributes loads over several gears. The planetary gearbox has a polymer case that ensures quiet operation. The company is committed to the circular economy, investing in chemical recycling and promoting the use of recycled materials wherever possible. For more information, visit CZPT’s website or contact an CZPT expert today.
A planetary gearbox contains a sun gear, which is known as the input gear. The other gears are called planets, and these are mounted on a carrier, which is connected to an output shaft. A planetary gearbox is characterized by its high reduction ratios, energy savings, and compact design. It offers superior durability and trouble-free service. Whether you need a large or small planetary gearbox, you can find one to suit your needs.
The Standard series planetary gearboxes are a cost-effective alternative to premium series gearboxes. These gearboxes are suitable for applications requiring only mild backlash or with low IP65 protection. ABB positioners feature seven different gear unit variants, allowing for standardized mounting and stranded wire connections. The drygear(r) strain wave gear has a stranded wire connector and is available with a three-year warranty.
A planetary gearbox can be used for various applications, from lifting goods to loading and unloading products in a factory. The company has a wide product range for different applications, including plastic machinery and machine tools, pick-and-place robots, mill drives, and wind turbines. It can also be used to operate robot gripper systems. Its high-quality planetary gears are designed to last for many years, making it an ideal solution for many industries.
CZPT
A planetary gearbox is an essential component of many transport systems. These devices work by aligning the output and input shafts. The Reggiana planetary gearbox 2000 series includes bevel stages and linear variants. The company offers modularity and flexibility with output configurations in ten different gear sizes. Each planetary gearbox can also be customized to meet the specific needs of a specific application.
CZPT is the Australian branch of CZPT, a leading global manufacturer of planetary gearboxes. CZPT is located in Carrum Downs, south east of Melbourne, and is one of the leading suppliers of planetary reduction gears, hydraulic failsafe brakes, and wheel drives. The company aims to provide high-quality, durable products that can be used in a variety of applications.
A CZPT Plus Series Gear is designed to maximize flexibility in a variety of applications. The gearbox’s modular design allows for endless scalability. The CZPT Plus Series Gear is commonly used in mining operations, and is known for its raw output capabilities and low maintenance design. It is made with high-quality materials, and it is also available in multiple sizes for customized applications.
The multi-stage planetary gearbox can combine individual ratios to increase the overall multiplicative factor. The planetary gears may also be combined to increase the transmittable torque. The output shaft and drive shaft may rotate in opposite directions, or they can be fixed so the gearbox can function in either direction. If the ring gear is fixed, planetary gearboxes can be realized as multi-stage.
CZPT
The CZPT Planetary Gearbox is the perfect combination of compact size and high efficiency in power transmission. The compact design allows this gearbox to run silently while still delivering high power density and transmission efficiency. The CZPT Planetary Gearbox has several advantages. Unlike conventional planetary gearboxes, CZPT’s planetary gearbox features high power density, low torque, and optimum transmission efficiency.
CZPT’s products have been used in a variety of applications for many years, proving their reliability and quality. These products are renowned in the world for their reliability and quality. CZPT’s planetary gearboxes are backed by a five-year warranty. These features help customers choose a planetary gearbox that meets their needs and stays in top shape for years to come. But how do you test a planetary gearbox?
Figure 17 shows the response of a planetary gearbox to vibration. The maximum displacement in xg direction at a 50% crack level is shown by the dashed line. The signal in xg direction is called the xsignal. Moreover, the CZPT Planetary Gearbox’s vibration response is highly sensitive to the location of the bearings. For this reason, dynamic modeling of a planetary gearbox should consider bearing clearance.
CZPT’s hollow cup motor drive system features high reliability and low power consumption. The gearbox is compatible with industries with high quality standards, as there is no cogging torque. Its compact size and low electromagnetic noise make it ideal for a variety of applications. For industries with high product quality requirements, the CZPT Hollow Cup Motor Drive System is an excellent choice. It is also designed for vertical installation. You can even buy multiple CZPT products to meet your specific needs.
CZPT
With its PL series planetary gearboxes, CZPT has expanded its product portfolio to include more types of drive solutions. CZPT is one of the few companies to have won the Schneider Electric Supplier Award for Quality. In addition, its high-quality planetary gearboxes are highly customizable, allowing designers to customize each gearbox for the application at hand. Whether it is a geared pump or a stepper motor, CZPT’s PLE planetary gearboxes are built to meet the exact specifications of the application at hand.
The flange-mounted version of the planetary gearbox is comparable to its planetary counterpart. Using a flange-mounted planetary gearbox allows for a smaller, more compact design. This model also features a large-diameter output shaft, which helps achieve a higher level of torsional stiffness. This makes CZPT flange gearboxes particularly useful for applications where the direction of motion can change frequently. These gearboxes can be used with a wide variety of belts.
The PLQE 60-mm gearbox is used in Outrider’s single-stage design. Its gear ratio is 5:1, while its dual-stage version has a 15:1 gear ratio. Both gearboxes have identical mounting configurations, but the two-stage version is slightly longer.
The PLN series of planetary gearheads from CZPT are the standard for high-precision applications. They’re compatible with all major motor brands and sizes, and the company’s adapter kits are available to fit almost any motor. This makes CZPT gearheads one of the easiest to integrate into a complex machine. They’re also extremely easy to install, with the same torque as their corresponding spur gears.
CZPT’s
If you are looking for an efficient solution for screw press applications, consider using CZPT’s 300M Planetary Gearbox. It has high axial and radial load capacities, compact design, high torque output, and torque arm. The 300M planetary gearbox is compatible with a variety of screw presses, including hydraulic press systems and digester systems. Its Torque control and direct coupling feature makes it easy to install.
CZPT’s small planetary gearboxes have an output torque of 20:1 from individual ratios of 5:1 and 4:1. They run silently and deliver maximum transmission efficiency. The planetary gears are mounted on a ring that is fixed around the center sun gear. The ring acts as an output torque converter for the next planet stage. This planetary gearbox has multiple stages and a maximum ratio of 20:1 can be created from individual ratios of 5:1 and 4:1.
CZPT Motor is an innovator in the design and manufacture of miniature motors for industrial robots. Its offerings include brushless DC and brushed DC motors, as well as planetary gearboxes, encoders, and brakes. CZPT’s products have a variety of uses in robotics, intelligent appliances, medical equipment, communication, and industrial automation. The company is also committed to providing custom designs based on customer specifications.
Another advantage of a planetary gearbox is its high power transmission efficiency. It is capable of approximately 3% per stage, allowing it to transmit more torque than a conventional single-stage gearbox. Planetary gearboxes are also compact and have a high torque-to-weight ratio. CZPT’s Planetary Gearbox is the best choice for many applications. This gearbox offers the highest efficiency and is ideal for small-scale production.


editor by CX 2023-10-21
China Standard Transmission System Spare Parts Sun Gear 3030900153 for Wheel Loader LG936L/LG956L L956f bevel gear set
Product Description
Transmission System Spare Parts Sun gear for wheel loader LG936L/LG956L L956F
[Our services
1.Mining &Construction machinery:
**Wheel loader
LG916 LG918 L918 LG933L L933 LG936L LG938L L938F LG946L L948 L948F LG952N LG952H LG953N L953F L955 L955F L955FN LG956L L956F L956FH LG958L L958F LG959 LG968 L968F LG978 LG979
**Backhoe loader
LGB877 LGB876 WZ30-25
**Motor Grader
G9138 G9165 G9180 G9190 G9200 G9220
**Road Roller
RS7120 RS7200 RS7260 RS8140 RS8160 RS8180 RS8200 RS8220
**Excavator
LG6135E LG6150E LG6210E LG6225E LG6235E LG6250E LG6300E LG6360E LG6400E
** Bulldozer
SD16 TY160 /SD22 TY220/ SD32 TY320
2.Engine parts
(Yuchai(YC6108G) CHINAMFG (Deutz TD226B,WD615) Shangchai (C6121),(6BT5.9..)
3.Transmission
(4WG180,4WG200..) HangZhou advance (ZL30E,ZL50E,YD13,WG180..)
[Customer&Exhibition]
Any interests, feel free to contact me!
| Type: | Sun Gear |
|---|---|
| Application: | Wheel Loader |
| Certification: | CE, ISO9001: 2000 |
| Condition: | New |
| Stock: | Available |
| Part Number: | 3030900153 |

What are the safety considerations when working with sun gears in machinery?
Working with sun gears in machinery requires careful attention to safety to prevent accidents and ensure the well-being of operators. Here are some important safety considerations when working with sun gears:
- Training and Knowledge:
Operators and maintenance personnel should receive proper training and have a thorough understanding of the machinery’s operation and the specific risks associated with working with sun gears. This includes knowledge of safety procedures, maintenance protocols, and the use of personal protective equipment (PPE).
- Lockout/Tagout Procedures:
Before performing any maintenance or repair tasks on machinery involving sun gears, it is essential to follow lockout/tagout procedures. These procedures involve isolating the machinery from its power source and ensuring that it cannot be accidentally energized during maintenance. Lockout/tagout procedures help prevent unexpected movements of the gears, reducing the risk of injury.
- Personal Protective Equipment (PPE):
Appropriate personal protective equipment should be worn when working with sun gears. This may include safety glasses, gloves, protective clothing, and hearing protection, depending on the specific hazards present. PPE helps protect operators from potential injuries caused by flying debris, contact with moving parts, and excessive noise.
- Machine Guards:
Machine guards should be in place to prevent accidental contact with the sun gears during operation. Guards can be physical barriers, such as covers or enclosures, that restrict access to the gears. They act as a protective barrier and reduce the risk of entanglement or injury caused by accidental contact with rotating or moving parts.
- Maintenance and Inspection:
Regular maintenance and inspection of machinery, including sun gears, are crucial for identifying potential issues and preventing malfunctions or failures. Maintenance tasks should be carried out following manufacturer guidelines and recommendations. Inspection of gears should include checking for signs of wear, proper lubrication, and alignment.
- Proper Handling and Lifting:
When handling sun gears or transporting them within a facility, proper lifting techniques and equipment should be used. Sun gears can be heavy and require appropriate lifting devices, such as cranes or hoists, to avoid strain or injuries. Operators should also ensure that gears are securely fastened or stored to prevent them from falling or causing accidents.
- Risk Assessment:
A comprehensive risk assessment should be conducted to identify hazards associated with sun gears and their machinery. The assessment should consider factors such as gear size, rotational speed, pinch points, and potential for entanglement. Based on the assessment, appropriate safety measures and controls should be implemented to mitigate identified risks.
- Emergency Procedures:
Clear emergency procedures should be established and communicated to all personnel working with sun gears. These procedures should include protocols for responding to accidents, injuries, or equipment malfunctions. Operators should be familiar with emergency shutdown procedures and know how to safely stop the machinery in case of an emergency.
By adhering to these safety considerations, operators and maintenance personnel can minimize the risk of accidents and promote a safe working environment when working with sun gears in machinery.

How do you calculate gear ratios involving a sun gear in planetary systems?
Calculating gear ratios in planetary systems involving a sun gear requires considering the number of teeth on the gears and their arrangement. Understanding the calculation process helps in determining the gear ratio and predicting the rotational relationship between the input and output gears. Here’s an explanation of how to calculate gear ratios involving a sun gear in planetary systems:
- Step 1: Identify the Gears: In a planetary system, identify the gears involved, namely the sun gear, planet gears, and ring gear. The sun gear is the gear at the center, surrounded by the planet gears, which in turn engage with the outer ring gear.
- Step 2: Count the Teeth: Count the number of teeth on each gear. The sun gear, planet gears, and ring gear all have a specific number of teeth. Let’s denote these as Ts (sun gear teeth), Tp (planet gear teeth), and Tr (ring gear teeth).
- Step 3: Determine the Gear Ratio: The gear ratio in a planetary system involving a sun gear is calculated using the following formula:
Gear Ratio = (Tp + Tr) / Ts
- Step 4: Interpret the Gear Ratio: The calculated gear ratio represents the rotational relationship between the input (sun gear) and output (ring gear) gears. For example, if the gear ratio is 2:1, it means that for every two revolutions of the sun gear, the ring gear completes one revolution in the opposite direction.
- Step 5: Adjust for Multiple Planet Gears or Fixed Components: In some cases, planetary systems may involve multiple planet gears or fixed components. The presence of multiple planet gears affects the gear ratio, and the inclusion of fixed components alters the gear engagement and behavior. These factors may require additional calculations or adjustments to accurately determine the gear ratio.
In summary, calculating gear ratios involving a sun gear in planetary systems necessitates identifying the gears, counting the teeth on each gear, and applying the appropriate formula. The resulting gear ratio provides insights into the rotational relationship between the sun gear and the ring gear. It’s important to consider any additional elements, such as multiple planet gears or fixed components, that may influence the gear ratio calculation.

How does a sun gear differ from other types of gears?
A sun gear has distinct characteristics that set it apart from other types of gears. While gears serve various purposes in mechanical systems, understanding the specific features of a sun gear can help differentiate it from other gear types. Here’s an explanation of how a sun gear differs from other gears:
- Central Position: Unlike many other gears that are located on the periphery of a gear system, a sun gear is positioned at the center of a planetary gear arrangement. It serves as a central driver within the system, transmitting torque to other gears.
- Engagement with Planet Gears: A defining feature of a sun gear is its engagement with multiple planet gears. These planet gears surround the sun gear and mesh with both the sun gear and an outer ring gear. The interaction between the sun gear and the planet gears allows for the transfer of torque and power distribution within the gear system.
- Gear System Configuration: Sun gears are commonly found in planetary gear systems, where they function as a central component. Planetary gear systems consist of a sun gear, planet gears, and an outer ring gear. The arrangement and interaction of these gears enable various gear ratios, torque multiplication, and directional control.
- Power Input: In a planetary gear system, the sun gear typically receives power input from an external source, such as an engine or motor. It serves as the primary driving element that initiates torque transmission and power distribution within the system.
- Role in Gear Ratio: The sun gear’s size, number of teeth, and its interaction with the planet gears and ring gear determine the overall gear ratio. By altering the sizes and arrangements of these gears, manufacturers can achieve different speed and torque combinations, providing versatility in gear system applications.
While a sun gear has its unique characteristics, it is essential to note that gears come in various types and configurations, each serving specific purposes in mechanical systems. Different types of gears include spur gears, helical gears, bevel gears, worm gears, and more. Each type has its own design, tooth profile, and applications, catering to different needs such as speed reduction, torque multiplication, directional control, or noise reduction.
In summary, a sun gear differentiates itself through its central positioning, engagement with planet gears, configuration in planetary gear systems, role as a power input element, and influence on gear ratio. Understanding these distinctions helps in recognizing the specific functions and applications of sun gears within mechanical systems.


editor by CX 2023-10-21
China best 90 Flange Precision Speed Gear Reducer Mounting Transmission Planetary Gearbox bicycle planetary gearbox
Product Description
Product Description
The reducer is generally used for low-speed and high-torque transmission equipment.
The motor, internal combustion engine or other high-speed running power is used to achieve the purpose of deceleration by meshing with the large gear on the output shaft through a gear with a small number of teeth on the input shaft of the reducer.
The reducer will also have several pairs of gears with the same principle to achieve the ideal reduction effect.
The ratio of the number of teeth of the large and small gears is the transmission ratio.
|
Applicable Industries |
Manufacturing Plant, Automation industry |
Customized support |
OEM, ODM |
|
Gearing Arrangement |
Planetary |
Output Torque |
≤60 N.m |
|
Input Speed |
≤3000rpm |
Output Speed |
≥43rpm |
|
Place of Origin |
ZheJiang , China |
Brand Name |
HPS |
|
Certification |
ISO9001, CE |
Housing Material |
45#Steel or 42Crmo |
|
Ratio |
4,5,7,10,16,20,25,28,35,40,50,70 |
Material of Shaft |
as required |
|
Model |
SPLF60 |
Lubricant |
Synthetic Grease |
|
Packing |
Standard export package |
Warranty |
1 Year |
Application Field
Automatic Arms
Assembly Line
3D-Printer
Medical -Equipment
CNC Machine
Tapping Machine
Other Automation Devices
Why Choose Us
Standard production and Strict testing process
Package Type: Standard export packing & Wood pallets packing
CERTIFICATIONS
Product Parameters
It is suitable for most servomotor brands manufactured by manufacturers
Company Profile
ZheJiang High Precision Gear Transmission Co., Ltd
ZheJiang High Precision Gear Transmission Co., Ltd located in HangZhou city, ZheJiang Province, China. It is a leading company dedicated in precision transmission parts and system research, manufacture and sales, various series of products are manufactured in its 5000 square CZPT workshop, the precision planetary gearbox and gear motor are developed especially for solar energy industry and have served many large-scale solar projects worldwidely.
The research team has more than 15 years experiences in this field, who can ensure a punctual and efficient service to meet customer’s specific needs. It has pasted the ISO9001 quality management system and CE, products have been exported to lots of countries with a wide range application in AGV, intelligent robot, logistic, industrial automation, solar energy, vessel, packaging and textile etc.Consistently, our goal is to promote the application of solar power industry in the world, and we believe it provides clean and sustainable energy for humanity to better protect our environment.
HPS attends 5-6 exhibitions every year, both solar PV exhibitions and automation industry exhibitions, professional sales team and quality products build CZPT a good reputation in the market.
Teams
WORKSHOP
Competitive & Advantages of Planetary Gearbox
* ODM & OEM Service
* Noise Test/ Life Test/ Water-proof Test/ High- Low Temperature Test/ Air-tight Test/ Salt Spray Test
* Low Noise, Low Backlash, High Efficiency
* 20000 Hours Working Life
* 100% Quality Checked with Quality Guaranteed
FAQ
Q1:Which areas are your products mainly used in?
A:At present, we have 2 main products: precision planetary gear reducer and solar geared motor. Most of the precision planetary reducers are used in automation fields, such as medical equipment, 3D printers, door openers, tapping machines, CNC lathes and a series of automation equipment. In addition, our solar geared motors are used in photovoltaic power generation projects, which are mainly combined with rotary drives to drive solar panels to track sunlight.
Q2: How to choose the suitable planetary gearbox?
A :First of all, we need you to be able to provide relevant parameters. If you have a motor drawing, it will let us recommend a suitable gearbox for you faster. If not, we hope you can provide the following motor parameters: output speed, output torque, voltage, current, IP, noise, operating conditions, motor size and power, etc.
Q3: What is the price ?
A : The main determining factor for the price of each product is the order volume. You can communicate with us and let us understand each other. I believe that our prices, product quality and our services can definitely make you satisfied.
Q4: Do you provide customized service?
A: Yes, we provide customized services. You only need to put CZPT your needs, and we will do our best to provide you with a plan, make plans, and try our best to meet your needs.
| Application: | Motor, Machinery, Agricultural Machinery |
|---|---|
| Hardness: | Hardened Tooth Surface |
| Installation: | Vertical Type |
| Layout: | Coaxial |
| Step: | Double-Step |
| Type: | Planetary Gear Reducer |
| Samples: |
US$ 50/Piece
1 Piece(Min.Order) | |
|---|
| Customization: |
Available
| Customized Request |
|---|

The Basics of a Planetary Gearbox
The basic model of a planetary gearbox is a highly efficient transmission that transmits nearly ninety percent of the power it receives. The basic planetary gearbox comes in three basic types: Inline, Helical, and Spur. Below, we will discuss the differences between each of them and which one 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 two parts: a sun gear (also called the central or input gear), and two 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 three 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 three 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 five to eight 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


editor by CX 2023-10-20
China best Factory Custom Powder Metallurgy Sun Gear for Planetary Gearbox spurs gear
Product Description
Gears produced by powder metallurgy
| Product Name | High precision gear manufacturers by powder metallurgy |
| Material | Iron powder, alloy powder,precious metal powder |
| Technology | Sintering – Powder Metallurgy |
| Certificate | ISO9001/TS16949 |
| Surface Treatment | High frequency quenching, oil impregnation,CNC,vacuum cleaning,polishing, |
| Apperance | No crumbling, cracks, exfoliation, voids, metal pitting and other defects |
| Process Flow |
Powder mixing – Forming – Sintering – Oil impregnation – Sizing -Ultrasonic cleaning – Steam oxidation – Oil impregnation – Final inspection – Packing |
| Application | Motorcycle parts, auto parts, Power Tools parts, Motor parts, electric Bicycle, |
Why Powdered metals?
Significant cost savings.
Create complex or unique shapes.
No or minimal waste during production.
High quality finished products.
Strength of materials
Production process of powder metallurgy
Powder mixing – Forming – Sintering – Oil impregnation – Sizing -Ultrasonic cleaning – Steam oxidation – Oil impregnation – Final inspection – Packing
Company Profile
JINGSHI established in 2007
Manufacturer & Exporter
Exacting in producing powder metallurgy gears and parts
Passed ISO/TS16949 Quality Certificate
Advanced Equipment
Numbers senior R & D engineers and Skilled operators
Precise Examination Instruments.
Strict Quality Control
With the “More diversity, More superior, More professional ” business purposes, we are committed to establish long-term friendship and CHINAMFG relationship with domestic and international customers to create a bright future .
Certification
Please Send us your 2D or 3D drawings to start our cooperation!
| Application: | Motor, Electric Cars, Motorcycle, Machinery, Marine, Toy, Agricultural Machinery, Car |
|---|---|
| Hardness: | Hardened Tooth Surface |
| Gear Position: | External Gear |
| Manufacturing Method: | Sintered Gear |
| Toothed Portion Shape: | Spur Gear |
| Material: | Iron Alloy Powder |
| Samples: |
US$ 1/Piece
1 Piece(Min.Order) | |
|---|
| Customization: |
Available
| Customized Request |
|---|

Can sun gears be used in automotive applications?
Sun gears are widely used in various automotive applications, playing crucial roles in different systems. Let’s explore the automotive applications where sun gears are commonly employed:
- Automatic Transmissions:
Sun gears are integral components of automatic transmissions in vehicles. Automatic transmissions use planetary gear systems, where the sun gear is one of the key elements. The interaction between the sun gear, planet gears, and ring gear allows for different gear ratios and smooth shifting between gears.
In automatic transmissions, the sun gear is driven by the engine’s input shaft and transmits power to the other gears. By controlling the engagement of various clutches and brakes within the transmission, the sun gear enables seamless gear changes, optimizing vehicle performance and fuel efficiency.
- Transfer Cases:
In four-wheel-drive and all-wheel-drive vehicles, transfer cases distribute power between the front and rear wheels. Sun gears are utilized in transfer cases to facilitate power transfer and gear reduction.
The sun gear, along with other gears and components, helps control the torque distribution and gear ratios between the front and rear axles. This allows vehicles to adapt to different driving conditions, such as slippery surfaces or off-road terrain, enhancing traction and stability.
- Starter Motors:
Sun gears are employed in starter motors, which are responsible for cranking the engine during startup. Starter motors use a gear reduction mechanism to convert the electric motor’s high-speed rotation into a higher torque output.
The sun gear, along with other gears like the planetary gears, enables the gear reduction necessary to generate sufficient torque to crank the engine. This gearing arrangement allows for efficient and reliable engine starting, even in challenging conditions.
- Power Seats and Windows:
Sun gears can also be found in power seat and power window mechanisms in vehicles. These systems use electric motors to adjust seat positions or operate windows.
The sun gear, along with other gears and mechanisms, converts the rotational motion of the electric motor into linear movement, enabling precise adjustments of seat positions or smooth operation of windows. The use of sun gears ensures reliable and efficient functionality of these systems.
- Other Automotive Systems:
Sun gears may also have applications in other automotive systems. For example, they can be found in power steering systems, where they contribute to the gear reduction and power transmission required for smooth steering operation.
Furthermore, sun gears can be utilized in various auxiliary systems, such as cooling fans, HVAC (heating, ventilation, and air conditioning) systems, and engine accessories. These applications leverage the sun gear’s ability to facilitate power transmission and gear reduction, enhancing the efficiency and performance of these systems.
In summary, sun gears are extensively used in automotive applications, including automatic transmissions, transfer cases, starter motors, power seats and windows, power steering systems, and auxiliary systems. Their presence in these systems enables crucial functions such as gear shifting, power distribution, gear reduction, and efficient power transmission. Sun gears contribute to the overall performance, reliability, and functionality of automotive systems, enhancing the driving experience and vehicle efficiency.

What is the role of a sun gear in the operation of a differential gear system?
The sun gear plays a vital role in the operation of a differential gear system, which is commonly used in vehicles to distribute power between the wheels while allowing them to rotate at different speeds. The sun gear, along with other gears in the differential, contributes to the smooth and efficient operation of the system. Here’s an explanation of the role of a sun gear in the operation of a differential gear system:
- Power Input:
The sun gear serves as the input for the differential gear system. It receives torque from the driveshaft or propeller shaft, which transfers power from the engine or transmission to the differential. The rotation of the sun gear initiates the power flow within the differential assembly.
- Speed Differentiation:
The primary function of the differential gear system is to allow the wheels to rotate at different speeds while distributing power between them. The sun gear, along with the other gears in the differential, enables this speed differentiation.
As the sun gear rotates, it meshes with the planet gears, which are arranged around it. The planet gears, in turn, engage with the ring gear, which is connected to the axle shafts leading to the wheels. The interaction between the sun gear, planet gears, and ring gear allows the differential to accommodate different rotational speeds of the wheels.
- Distribution of Torque:
Another critical role of the sun gear is to distribute torque between the wheels in a differential system. The torque input from the sun gear is transmitted to the planet gears, which then transfer the torque to the ring gear and, subsequently, to the axle shafts and wheels.
As the differential operates, it adjusts the distribution of torque based on the traction and resistance encountered by each wheel. If one wheel experiences less resistance or has more traction than the other, the differential will allocate more torque to that wheel. This torque distribution helps optimize power delivery, improve traction, and enhance vehicle stability during cornering or uneven road conditions.
- Equal Torque Split (Open Differential):
In an open differential system, which is the most common type, the sun gear plays a role in equal torque split between the wheels under normal driving conditions. When both wheels have equal traction and resistance, the sun gear distributes torque equally to the planet gears, resulting in an equal torque split between the wheels.
However, in situations where one wheel loses traction or encounters less resistance, such as during wheel slip or when one wheel is on a slippery surface, the open differential will prioritize torque delivery to the wheel with less traction, potentially reducing overall traction and performance.
- Limited-Slip Differential:
In some differential systems, such as limited-slip differentials (LSDs), the sun gear’s role is modified to provide improved traction and torque distribution. LSDs use various mechanisms, such as clutch packs or viscous fluids, to limit the speed differentiation between the wheels and redirect torque to the wheel with more traction.
In LSDs, the sun gear’s engagement with the other gears is modified to allow for controlled torque transfer, enhancing traction and stability during challenging driving conditions.
In summary, the sun gear in a differential gear system serves as the power input and enables speed differentiation and torque distribution between the wheels. Its role is crucial for ensuring smooth power delivery, optimizing traction, and enhancing vehicle stability in various driving conditions.

Can you explain the role of a sun gear in planetary gear systems?
The sun gear plays a crucial role in planetary gear systems, contributing to their unique functionality and versatility. Understanding the specific role of the sun gear within these systems helps in comprehending their overall operation. Here’s an explanation of the role of a sun gear in planetary gear systems:
- Power Input: The sun gear serves as the primary power input element in a planetary gear system. It receives rotational motion and torque from an external source, such as an engine or motor. This power input is transmitted to other gears within the system.
- Engagement with Planet Gears: One of the distinctive features of a planetary gear system is the interaction between the sun gear and multiple planet gears. The planet gears are smaller gears that surround the sun gear and mesh with both the sun gear and an outer ring gear. This engagement allows for the transfer of torque and motion between the gears.
- Power Distribution: As the sun gear rotates, it transmits torque to the planet gears through their meshing teeth. The planet gears, in turn, transfer the torque to the outer ring gear. This power distribution mechanism enables the sharing of torque among multiple gears within the system, allowing for load distribution and efficient power transmission.
- Gear Ratio Control: By changing the arrangement and sizes of the sun gear, planet gears, and ring gear, planetary gear systems can achieve different gear ratios. The number of teeth on the sun gear, planet gears, and ring gear, as well as their relative sizes, determine the gear ratio. This flexibility in gear ratio control enables planetary gear systems to provide various output speeds and torque levels, catering to different operational requirements.
- Torque Amplification: A key advantage of planetary gear systems is their ability to amplify torque. By employing a combination of the sun gear, planet gears, and ring gear, torque can be multiplied or reduced depending on the gear ratio configuration. This torque amplification feature is beneficial in applications where high torque output is required, such as automotive transmissions and heavy machinery.
- Directional Control: Another notable aspect of planetary gear systems is their directional control capability. By fixing or holding the sun gear while the ring gear or planet carrier is driven, the gear system can achieve different output directions, such as forward or reverse rotation. This directional control adds versatility to gear systems, enabling them to be used in various mechanical applications.
In summary, the sun gear in planetary gear systems serves as the power input element, engages with planet gears, distributes torque, controls gear ratios, provides torque amplification, and enables directional control. Its role is essential in achieving efficient power transmission, versatile gear ratios, and adaptable functionality in a wide range of mechanical applications.


editor by CX 2023-10-20