China Best Sales Differential Gears Rear Light Truck Differential for CZPT Npr75 Nkr71 Nqr top gear

Product Description

ISUZU NPR, differential, ratio:6:39/ 7:39/ 7:41/ 7:34
Differential Gears Rear LIGHT Truck Differential for CHINAMFG NPR75 NKR71 NQR

Differential Assembly/Main Reducer/Differential Reducer for CHINAMFG NPR

REDUCER suitable FOR CHINAMFG NPR
Differential assembly parts. 

Forged parts with casted casing, High quality and with precised machining. Oem identical part suitable for all markets with international safety standards met. 

Customised products availble with drawings/ samples provided by customers. Detailed and satisfactory after sales services. 

 
 
 
 
 
8970946820  
8970946840  
8943389571
   
   

Our Factory:
We, Youbisheng Machinery Industrial Co., Ltd, is a professional manufacturer of heavy & light truck chassis parts for domestic and foreign models. Our products include drive axles, suspension parts, transmission parts, and more. The company is located in JinJiang City-a well known hometown of overseas Chinese, with convenient modes of transportation, by sea, land and air. We are 5 HangZhous away from HangZhou airport, 10HangZhous from railway station and 1 hour by car from HangZhou city. To ensure product quality, we import high ranking production and testing machines, such as American HASS Lathe, Japanese FANUC Robotic Arms, and 3D Coordinate Measuring Machine,etc.. To achieve continuous improvement, we have established a complete product quality assurance standard such as being BUV, TS/ISO16949 certified. To date, we have a wide range of truck spare parts, for truck models/brands of FAW, Xihu (West Lake) Dis.feng Motor, Sinotruck, and ZheJiang Auto. Earned a high reputation in the domestic market and established various representative agencies in HangZhou, HangZhou, HangZhou, HangZhou, HangZhou, HangZhou province in China. For overseas markets, we provide spare parts for European trucks ( VOLVO, MAN, SCANIA, MERCEDES-BENZ), Japanese trucks (ISUZU, HINO, CHINAMFG CHINAMFG and NISSAN), etc.. Our products open our markets to southeast Asia, the middle East, America and Africa. We always strive towards”EXCELLENCE QUALITY, WINS IT ALL”. Your kind inquiries and feedback are most welcome

Contact us:

 
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After-sales Service: Engineer Guidance
Condition: New
Axle Number: 2
Customization:
Available

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Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

differential gear

What are the symptoms of a failing differential gear?

A failing or faulty differential gear can exhibit various symptoms that indicate potential problems with its operation. Here are some common signs to look out for:

  • 1. Whining or Howling Noises: A prominent symptom of a failing differential gear is the presence of whining, howling, or rumbling noises coming from the rear of the vehicle. These noises may increase with vehicle speed or during specific driving maneuvers, such as turning or accelerating. The noises can indicate worn or damaged gears, insufficient lubrication, or misalignment within the differential assembly.
  • 2. Clunking or Clicking Sounds: Another symptom of a failing differential gear is the occurrence of clunking or clicking sounds, particularly during changes in direction or when shifting between drive modes. This can indicate worn or damaged gears, worn universal joints, or loose components within the differential.
  • 3. Vibration or Shuddering: A failing differential gear may cause vibration or shuddering sensations, especially when accelerating or decelerating. This can be a result of worn or damaged gears, improper gear meshing, or worn bearings within the differential assembly.
  • 4. Difficulty in Turning: If the differential gear is experiencing issues, you may notice increased difficulty in turning the vehicle, particularly during sharp turns or low-speed maneuvers. This can be caused by uneven torque distribution or limited mobility of the differential gears.
  • 5. Fluid Leaks: Leaking fluid around the differential housing is a potential indicator of a failing gear. Differential fluid is essential for lubrication and cooling of the gears and bearings. A leak can result from worn seals, cracked housing, or damaged components within the differential assembly.
  • 6. Excessive Tire Wear: A failing differential gear may lead to uneven tire wear. If you notice significant wear on the inner or outer edges of the tires, it could be a sign of differential problems. Uneven torque distribution can cause increased stress on specific tires, leading to abnormal wear patterns.
  • 7. Gear Slippage: In severe cases, a failing differential gear may result in gear slippage. This means that power is not being effectively transferred to the wheels, causing a loss of traction and reduced vehicle performance. Gear slippage can occur due to worn or damaged gears, insufficient lubrication, or other internal failures within the differential.

If you observe any of these symptoms, it is recommended to have your vehicle inspected by a qualified mechanic or technician. They can diagnose the exact cause of the issues and determine if the differential gear requires repair or replacement.

differential gear

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.

differential gear

What is a differential gear and how does it work?

A differential gear is a component found in vehicles that allows the wheels to rotate at different speeds while receiving power from the engine. Here’s a detailed explanation:

A differential is commonly used in cars, trucks, and other vehicles with driven wheels. Its primary function is to distribute torque (rotational force) from the engine to the wheels while compensating for differences in wheel speeds, especially during turns or when driving on uneven surfaces.

Basic Structure:

A typical differential gear consists of several key components:

  • Differential Case: It is the outer housing that encloses the differential assembly.
  • Ring Gear: The ring-shaped gear located on the inside of the differential case.
  • Pinion Gear: The small gear connected to the driveshaft, which meshes with the ring gear.
  • Side Gears: Two gears connected to the axle shafts, which mesh with the pinion gear.
  • Spider Gears (Planetary Gears): These gears are positioned between the side gears and allow the wheels to rotate at different speeds.

Function and Operation:

When power is transmitted from the engine to the differential, the pinion gear receives the rotational force from the driveshaft and meshes with the ring gear. As the pinion gear rotates, it rotates the ring gear and, in turn, the differential case.

During straight-line driving, when both wheels have equal traction and are rotating at the same speed, the spider gears rotate freely on their respective shafts. This allows the side gears to rotate at the same speed as the differential case, transmitting equal torque to both wheels.

However, when the vehicle turns or one wheel encounters a different traction condition (such as being on a slippery surface), the wheels need to rotate at different speeds. In this situation, the spider gears are forced to rotate along with the side gears due to the difference in rotational speeds between the two wheels.

As the spider gears rotate, they allow the side gears to rotate at different speeds, compensating for the variation in wheel speeds. This enables the wheels to rotate independently while still receiving power from the differential. The differential allows the outer wheel (on the outside of the turn) to rotate at a higher speed while the inner wheel (on the inside of the turn) rotates at a slower speed.

The differential gear system ensures smooth power delivery to the wheels, improves vehicle stability during turns, and reduces tire wear and stress on the drivetrain components.

It’s important to note that there are different types of differentials, such as open differentials, limited-slip differentials, and locking differentials. Each type has its own characteristics and is suited for different driving conditions and vehicle types.

In summary, a differential gear is a crucial component in vehicles that allows the wheels to rotate at different speeds while distributing power from the engine. By utilizing a combination of gears, it enables smooth and efficient power transmission to the wheels, particularly during turns or when encountering varying traction conditions.

China Best Sales Differential Gears Rear Light Truck Differential for CZPT Npr75 Nkr71 Nqr top gearChina Best Sales Differential Gears Rear Light Truck Differential for CZPT Npr75 Nkr71 Nqr top gear
editor by CX 2024-04-10