China supplier CZPT Parts CZPT Truck Helical Gear Sun Gear (199012340005) with Good quality

Product Description

Customer first, integrity-based, win-win,your are always welcome to visit our warehouse at any time,We can ship the goods after you come to China for inspection.

 Our Advantages
(1)Competitive Factory Price and Excellent Quality
(2)More than 20 years’ experience as a manufacturer

(3)Products Quality Certification SGS CCC ISO
(4)Perfect after-sale service
(5)Customized products available with us
(6)Export to more than 50 countries and region


Q1: Minimum order quantity?
A: MOQ is 1 unit.
Q2:  Production period?  
   A: Within 7 days since the moment we got your down payment
Besides in large quantities or imported
Q3: Payment term?
    A:TT: 100% T/T should be paid before delivery
Besides in large quantities: 50% T/T as deposit, the balance should be paid before delivery, Or LC,Western union
Q4: Shipping?
A: by international courier service, such as DHL, TNT, UPS, or Fedex. The goods above $1000 or a container can be shipped by sea

(1) One year quality guarantee or within 100000km, which comes the first.
(2) Other spare part could be supplied by OEM at cost prices. 
(3) Regularly callback to know the vehicle’s working status. 
(4) The overseas engineers are always ready to deal with unexpected needs. 

Company information
CHINA TRUCK INTERNATIONAL Ltd is 1 of the main exporters of Chinese trucks which is authorized by Ministry of Commerce
Our main products include full series products of CNHTC(HOWO,STR,Golden Prince,etc.), and spare parts for them. At the same time, we are always glad to provide professional suggestion for your orders,related technical support, and perfect after-sales services.
Staff of our company can provide the trucks meeting the requirement of customers at the best price. We have many years of experience in exporting trucks. We have not only the certificate and license of truck export and also strict quality management,fast and convenient channel of goods delivery, strict examination in quality and quantity of products, professional packing, professional and reliable loading goods,ontime delivery and competitiveprices.if you want to buy tractor truck,please contact us.
We sincerely hope to cooperate with you to expand market in your country!


Condition: New
Color: Silver
Certification: CE, DIN, ISO
Type: Helical Gear
Material: Helical Gear
Delivery Detail: Within 10 Working Days After Recept The Deposite


Customized Request

sun gear

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.

sun gear

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.

sun gear

What is a sun gear and how does it function in gear systems?

A sun gear is a fundamental component in gear systems, particularly in planetary gear arrangements. It plays a crucial role in determining the overall gear ratio and power distribution within the system. Here’s an explanation of what a sun gear is and how it functions:

A sun gear is a central gear in a planetary gear set. It is typically located at the center of the gear arrangement and is surrounded by other gears, known as planet gears, as well as an outer ring gear, also called a ring gear or annulus.

The primary function of the sun gear is to transfer torque and provide the driving force in a planetary gear system. Here’s how it functions:

  • Power Input: The sun gear receives power input from an external source, such as an engine or motor. It is directly connected to the input shaft and receives rotational motion and torque.
  • Planet Gear Engagement: The sun gear engages with multiple planet gears, which are smaller gears that surround the sun gear and mesh with both the sun gear and the ring gear. The planet gears rotate around their own axes while also revolving around the sun gear.
  • 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 ring gear. The relative sizes of the sun gear, planet gears, and ring gear determine the gear ratio and the distribution of power within the system.
  • Gear Ratio Variation: By changing the arrangement and sizes of the sun gear, planet gears, and ring gear, 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 allows gear systems to provide various output speeds and torque levels, catering to different operational requirements.
  • Directional Control: In some gear systems, the sun gear can also serve as a means of controlling the direction of power transmission. 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.

In summary, the sun gear is a central gear in planetary gear systems, responsible for receiving power input, engaging with planet gears, distributing torque to the ring gear, and determining the overall gear ratio. Its function is crucial in achieving different speed and torque combinations, as well as controlling the direction of power transmission within gear systems.

China supplier CZPT Parts CZPT Truck Helical Gear Sun Gear (199012340005) with Good qualityChina supplier CZPT Parts CZPT Truck Helical Gear Sun Gear (199012340005) with Good quality
editor by CX 2023-09-12