Product Description
Product Name:differential planetary gear
Product Number:QT485D1-2403056
Our Advantages
1.Multiple resource to meet different clients’ request.
We have the parts original from truck/machine factory, the parts from supply factory, who supply to SINOTRUK, SHACMAN…../we have parts which are from other big parts factory, but quality is also good and economical. In this case, clients can have more choice in both price and brands.
2.Quality Control
We have strict quality control on each spare parts. Each cooperate factory are selected strictly by our technical engineers. When selecting suppliers, they not only inspect the parts quality, but also inspect their material, their craftsmanship and their technic improvement ability. In this case, we can ensure most of our parts are durable on market.
3.Lower Transport Cost
As we know, most spare parts are heavy and most of our clients are far away from China. So the economical transport cost is more important. To lower clients’ purchase cost, we built special cooperation with DHL, TNT and Deppon, so Clients’ cost is much lowered.
4. Packing & Delivery:
Packing: Carton/wooden box/Plastic cover /pallet, Or According to clients’ requirements.
Shipment: by sea/by train/by air, we’ll recommend the best way for you depends on goods quantity.
Company Profile
HangZhou CHINAMFG TRUCK PARTS CO.,LTD. was established in 2002. Our company is located in the CHINAMFG of Sinotruk, HangZhou city,ZheJiang province,China. It is an entity enterprise with the integration of production, sales, importing and exporting. Our products mainly contain: Sinotruck Truck parts, Shacman Truck Parts and other heavy duty parts.
In the area of truck parts, we have more than 10 years of experience in production, exporting, also in domestic sales. Our professional production, excellent quality, sincere service, help us to have gained high praises from our customers. Now our products have been successfully exported to Asia, Africa, South America, Middle East and many other countries. We sincerely look CHINAMFG to cooperate with you.
Packing &shipping
FAQ
Q1. What is your package of goods ?
A: Generally, we will pack the goods by Neutral boxes ,Pallets or Wooden boxes. If any special needed ,please inform us earlier .
Q2. What the quality of your goods ?
A: We have different qualities, including Original, OEM, High copy, Copy, Refurbished and Second-hand. We can quote according to your real requirements and according to our experiences about your market requirements.
Q3, How do you make a price offer and how long is the validity period??
A: Generally we quote prices according to goods’ part number , if you don’t have , please provide us chassis number , we can confirm the exactly goods according to the chassis number. About the inquiry list, we usually finish the quotation within 24 hours . If you are very urgent ,please inform us earlier. The prices are valid within 20 days.
Q4. What is your terms of delivery?
A: EXW, FOB, CIF,CPT etc.
Q5. What is your terms of payment ?
A: T/T, L/C ,D/P ,D/A and WESTER UNION. Normally 30% deposit, 70% balance payment before delivery. We’ll show you pictures of the goods to double confirm before you arrange balance payment.
Q6: Do you have warranty ?
Yes, of course . Our warranty its 3 month after installed in the truck.
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| After-sales Service: | Three Months After Loading |
|---|---|
| Warranty: | Three Months After Loading |
| Type: | Muffler Assembly |
| Material: | PVC |
| Muffler Type: | Rear Muffler |
| Deck: | Single |
| Samples: |
US$ 1/Piece
1 Piece(Min.Order) | |
|---|
| Customization: |
Available
| Customized Request |
|---|
How does a differential gear distribute power between the wheels?
A differential gear is responsible for distributing power between the wheels of a vehicle, allowing them to rotate at different speeds while maintaining torque transfer. Here’s a detailed explanation of how a differential gear accomplishes this:
1. Power Input:
The differential gear receives power from the transmission or driveshaft connected to the engine. This power is transmitted to the differential assembly, which is typically located in the axle housing.
2. Ring and Pinion Gears:
Within the differential assembly, the power from the driveshaft is transferred to the ring and pinion gears. The ring gear is a large gear that surrounds the differential assembly, while the pinion gear is a smaller gear connected to the driveshaft. The interaction between these gears allows the power to be redirected.
3. Side Gears and Spider Gears:
The ring gear is connected to side gears, also known as bevel gears, through a set of small gears called spider gears. The side gears are attached to the axle shafts, which are responsible for transmitting power to the wheels. The spider gears allow the side gears to rotate independently of each other while maintaining torque transfer.
4. Differential Action:
As the vehicle moves, the differential gears enable the wheels to rotate at different speeds during turns. When the vehicle is moving in a straight line, the spider gears rotate smoothly, allowing equal power distribution to both wheels. However, during a turn, the inside wheel travels a shorter distance than the outside wheel, causing them to rotate at different speeds.
5. Speed and Torque Distribution:
The differential gear adjusts the speed and torque distribution between the wheels based on their rotational differences. When the vehicle is turning, the spider gears allow one wheel to rotate faster than the other, ensuring that torque is transferred to the wheel with better traction. This allows the wheels to rotate at different speeds, preventing tire scrubbing and providing smooth cornering.
6. Limited-Slip and Locking Differentials:
In certain differential systems, such as limited-slip differentials or locking differentials, additional mechanisms are incorporated to enhance traction and power distribution. Limited-slip differentials use clutch packs or friction plates to provide a predetermined amount of resistance, allowing some speed differentiation between the wheels while still transferring power. Locking differentials, on the other hand, lock the side gears together, ensuring equal torque distribution to both wheels, regardless of traction conditions.
7. Differential Types:
There are various types of differentials, including open differentials, limited-slip differentials, electronic differentials, torque vectoring differentials, and more. Each type has its own mechanisms and technologies to distribute power between the wheels effectively, depending on the vehicle’s requirements and driving conditions.
In summary, a differential gear distributes power between the wheels by utilizing a system of gears, including ring and pinion gears, side gears, and spider gears. The differential action allows the wheels to rotate at different speeds during turns, ensuring smooth cornering and preventing tire scrubbing. Additional mechanisms, such as limited-slip or locking differentials, can further enhance traction and power distribution in various driving conditions.
How do differential gears affect fuel efficiency in vehicles?
In vehicles, differential gears can have an impact on fuel efficiency. Here’s a detailed explanation of how differential gears affect fuel efficiency:
- Gear Ratio: The gear ratio of the differential can affect fuel efficiency. A higher gear ratio (numerically lower) allows the engine to run at lower RPMs for a given speed, which can result in improved fuel efficiency. This is because the engine operates more efficiently in its lower RPM range, consuming less fuel. On the other hand, a lower gear ratio (numerically higher) can provide better acceleration and performance but may result in higher fuel consumption.
- Friction and Efficiency Losses: Differential gears introduce friction and mechanical losses in the drivetrain. As power is transmitted from the engine to the wheels through the differential, some energy is lost due to friction in the gears, bearings, and other components. These frictional losses reduce overall efficiency and can have a slight impact on fuel consumption. However, modern differentials are designed with efficiency in mind, and advancements in lubrication, materials, and manufacturing techniques help minimize these losses.
- Limited-Slip Differentials (LSD): Limited-slip differentials (LSDs) can have a minor effect on fuel efficiency compared to open differentials. LSDs use additional mechanisms to distribute torque between wheels, resulting in a slight increase in mechanical losses and energy consumption. However, the impact on fuel efficiency is generally minimal and may not be noticeable in everyday driving situations.
- Driving Style and Traction: The traction characteristics of differential gears can indirectly influence fuel efficiency. In slippery conditions or situations where wheelspin occurs, open differentials may allow excessive power to be lost in wheel slip, resulting in reduced traction and poorer fuel efficiency. Limited-slip differentials or advanced traction control systems can minimize wheel slip and improve overall traction, leading to better fuel efficiency by reducing power wastage.
- Vehicle Type and Design: The impact of differential gears on fuel efficiency can vary depending on the vehicle type and design. Factors such as weight, aerodynamics, tire type, transmission, and overall drivetrain configuration play a significant role in determining fuel efficiency. While differential gears are a part of the drivetrain, their influence on fuel efficiency needs to be considered in conjunction with other vehicle characteristics.
In summary, differential gears can affect fuel efficiency in vehicles primarily through their gear ratio, friction and efficiency losses, and traction characteristics. While the impact on fuel efficiency is generally modest, optimizing the gear ratio and minimizing frictional losses can contribute to improved fuel economy. Additionally, the traction benefits provided by limited-slip differentials or advanced traction control systems can indirectly enhance fuel efficiency by reducing power wastage in wheel slip situations.
What are the functions of a differential gear in a vehicle?
A differential gear in a vehicle serves several important functions. Here’s a detailed explanation:
1. Torque Distribution:
One of the primary functions of a differential gear is to distribute torque (rotational force) from the engine to the wheels. As the engine generates power, the differential ensures that it is transmitted to the wheels efficiently and effectively. By dividing the torque between the two wheels, the differential enables both wheels to receive power and propel the vehicle forward.
2. Differential Action:
The differential gear allows the wheels to rotate at different speeds when the vehicle is turning or when one wheel encounters different traction conditions. This differential action is crucial for smooth and controlled maneuvering. By enabling the outer wheel to rotate faster than the inner wheel during a turn, the differential allows the vehicle to negotiate corners without binding or skidding.
3. Wheel Speed Compensation:
When the vehicle is turning, the inside wheel travels a shorter distance compared to the outside wheel. Without a differential, this speed difference would cause significant drivetrain stress and tire wear. The differential gear compensates for the varying wheel speeds by allowing the wheels to rotate at different speeds, ensuring smooth operation and minimizing strain on the drivetrain components.
4. Traction Improvement:
In situations where one wheel loses traction, such as when driving on slippery surfaces or uneven terrain, the differential gear helps improve traction. By allowing the wheel with traction to receive more power, the differential ensures that the vehicle can continue moving forward. This is particularly important in vehicles with two-wheel drive, as the differential helps optimize power delivery to the wheel with better traction.
5. Reducing Tire Wear:
The differential gear contributes to reducing tire wear by accommodating differences in wheel speeds. By allowing the wheels to rotate at different speeds during turns, the differential minimizes tire scrubbing and uneven wear. It helps distribute the forces evenly across the tires, promoting longer tire life and maintaining better overall traction.
6. Enhanced Stability and Handling:
The differential gear plays a crucial role in enhancing vehicle stability and handling. By allowing the wheels to rotate independently, the differential facilitates better control during turns and maneuvering. It helps maintain proper weight distribution, prevents excessive understeer or oversteer, and promotes balanced handling characteristics.
Overall, the differential gear is an integral component of a vehicle’s drivetrain, responsible for torque distribution, wheel speed compensation, traction improvement, reducing tire wear, and enhancing stability and handling. It enables smooth and efficient power delivery to the wheels while accommodating varying speed and traction conditions, resulting in improved performance and driving dynamics.
editor by CX 2024-03-27