China high quality CZPTTruck Parts AC16 Axle Differential Driving Cylindrical Gear Az9981320130 top gear

Product Description

AZDriving Cylindrical Gear For CHINAMFG CHINAMFG AC16 Axle Truck Spare Parts Factory Price Driving Gear


Product advantages & features

(1) Forged with 20crmoti and finely ground teeth.
(2) OEM status: CHINAMFG Group, Sinotruk, CHINAMFG Axle, CHINAMFG Axle.
(3) Self inspection, patrol inspection and completion inspection to ensure 100% pass rate of products.

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Truck Model Sinotruk, Shacman, CHINAMFG Auman, CHINAMFG Xihu (West Lake) Dis., Xihu (West Lake) Dis.feng, Xihu (West Lake) Dis.feng Liuqi Balong, North BENZ( BEIBEN), C&C, JAC, etc.
Product catalogue Axle Wheel Assembly
Differential Assembly
Main Reducer Assembly
Inner Ring Gear& Bracket
Basin Angle Gear/ Bevel Gear
Axle Shaft/ Half Shaft & Through Shaft
Axle Housing& Axle Assembly
Steering knuckle & Front Axle
Brake Drum& Wheel Hub
Main Reducer Housing
Oil Seal Seat
Nut& Shim Series
Brake Backing Plate
Chassis Support Products Leaf Spring Bracket
Drop Arm Series
Bracket Series
Leaf Spring Shackle Series
Balanced Suspension Series Balance Shaft Assembly
Balance Shaft Housing
Axle Spring Seat
Thrust Rod
Balance Shaft Parts
Shock Absorber Series Shock Absorber
Shock Absorbing Airbag
Steering System Power Steering Pump
Power Steering Gear
Rubber Products Oil Seal
Rubber Support
Thrust Rod Rubber Core
Truck Belt
Engine support
Clutch Series Clutch Pressure Plate
Clutch Disc
Flywheel Assembly
Flywheel Ring Gear
Adjusting Arm Series  

Brand Culture

Packaging & Shipping

Working Principle

Function of gear transmission

1.Variable speed: By meshing 2 gears of different sizes, the speed of the gears can be changed. For example, the gearbox gear can reduce or increase the speed from the engine to meet the needs of the car;
2.Torque change: The meshing of 2 gears of different sizes changes the transmitted torque while changing the speed of the gears. For example, the car gearbox, the main reducer in the drive axle, can change the torque of the car;
3.Change direction: the power action direction of some vehicle engines is perpendicular to the driving direction of the vehicle. The transmission direction of power must be changed to drive the vehicle. This device is usually the main reducer and differential of the car.
Gear transmission has the advantages of high transmission efficiency, compact structure, reliable gear transmission, long service life and stable transmission ratio. Its transmission efficiency can reach 99%. Among the commonly used mechanical transmissions, gear transmission has high efficiency; its disadvantage is that compared with belt transmission and chain transmission, the manufacturing and installation accuracy of gears are high, and the price is more expensive. It is not suitable for transmission with too large distance between shafts.

Basic types of gear transmissions

Gear drive Plane gear transmission Spur gear drive Inner Meshing
External Meshing
Rack and pinion
Helical Gear Drive Inner Meshing
External Meshing
Rack and pinion
Herringbone gear movement  
Space gear transmission Transfer intersecting motion Spur gear
Helical gear
Curved gear
Transfer staggered axis motion Crossed helical gear transmission
Worm turbine
Hypoid gear

Spur gear and helical gear

Spur gears enter and exit meshing along the whole tooth width at the same time. Its transmission efficiency is very high. Its disadvantages are poor stability, impact and noise.
The tooth meshing process of helical gear is longer than that of spur gear, and the number of teeth participating in meshing is also more than that of spur gear. Therefore, the helical gear transmission is stable, the bearing capacity is strong, and the noise and impact are small. The main disadvantage of helical gear is that the axial component force will be generated when the helical gear surface is subjected to the normal force, and the thrust bearing needs to be installed, which complicates the structure.

Lubrication of gear transmission

There is relative sliding and friction between gear transmission tooth surfaces, which will cause tooth surface wear, increase transmission power consumption and reduce transmission efficiency. Therefore, lubricant must be used to reduce wear and accelerate heat dissipation. This lubricant is gear oil. Different kinds of gears on the car are lubricated with different gear oils, which must not be added wrong. For example, automatic transmission oil and CVT transmission oil cannot be mixed.

Honor Certificate


Q1. Are you a factory or trading company? 
We are a factory integrating research, development, production and sales.

Q2. What are the advantages of your products?
We support product customization to meet customer needs for special products. We can strictly control the products from raw materials to production, processing, product quality inspection, delivery, packaging, etc., and provide customers with high-end products and the most advantageous prices.

Q3. How about products price?
We are a factory, all products are direct sale at factory price. For the same price, we will provide the best quality; for the same quality, we have the most advantageous price.

Q4. What is your terms of packing?
We have branded packaging and neutral packaging, and we can also do what you want with authorization. This is flexible.

Q5. How to guarantee your after-sales service?
Strict inspection during production, Strictly check the products before shipment to ensure our packaging in good condition. Track and receive feedback from customer regularly. Our products warranty is 365 days.
Each product provides quality assurance service. If there is a problem with the product within the warranty period, the customer can negotiate with us in detail about the related claims, and we will do our best to satisfy the customer.

Q6. How can I accurately buy the products I need?
We need accurate product number, If you can’t provide product number, you can send us your product picture, or tell us your truck model, engine name plate, and so on. we will
determine exactly what you need products.

Q7. Do you accept third party inspection?
Yes.we do

Q8. How about your delivery time?
Generally, it will take 3 to 10 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order.

Q9. What are your brand agency conditions and advantages?
After we CHINAMFG an agent in 1 city, we will not CHINAMFG a second company to protect the agent’s brand advantage and price advantage. And we will help the agent develop customers and solve all kinds of difficult and miscellaneous problems about products.

Q10. What is your terms of payment?
By TT or LC. We’ll show you the photos of the products and packages before you pay the balance.


After-sales Service: Support
Warranty: 12 Months
Type: Truck Driving Gear
US$ 75/Piece
1 Piece(Min.Order)


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

differential gear

What is the impact of a malfunctioning differential gear on a vehicle’s performance?

A malfunctioning differential gear can significantly impact a vehicle’s performance and drivability. Here’s a detailed explanation of the effects of a malfunctioning differential gear:

1. Limited Traction:

A malfunctioning differential gear may result in limited traction, especially in off-road or slippery conditions. The differential gear distributes torque between the wheels to provide optimal traction. If the gear malfunctions, it may not distribute power evenly, causing one or more wheels to lose traction. This can result in wheel slip, difficulty in accelerating, and compromised control over the vehicle.

2. Poor Handling and Stability:

The differential gear plays a critical role in maintaining stability and handling characteristics of a vehicle. A malfunctioning differential gear can disrupt the balance between the wheels, leading to poor handling and stability. For example, if a rear-wheel-drive vehicle’s differential gear fails, it can cause excessive oversteer or understeer, making the vehicle difficult to control during cornering or sudden maneuvers.

3. Increased Tire Wear:

A malfunctioning differential gear can cause uneven tire wear. When the gear fails to distribute torque evenly, some wheels may experience excessive slippage or spinning, while others receive insufficient power. This uneven distribution of forces can lead to accelerated tire wear on specific wheels, resulting in uneven tread wear patterns and reducing the overall lifespan of the tires.

4. Abnormal Noise and Vibration:

A malfunctioning differential gear can produce abnormal noises and vibrations. If the gear’s components, such as bearings or gears, wear out or become damaged, it can result in grinding, whining, or clunking noises during operation. Additionally, the vehicle may experience vibrations, especially when accelerating or navigating turns. These symptoms indicate potential issues with the differential gear that require immediate attention.

5. Loss of Power and Performance:

A malfunctioning differential gear can lead to a loss of power and performance. If the gear fails to transfer torque effectively, the vehicle may experience reduced power delivery to the wheels. This can result in sluggish acceleration, decreased towing or hauling capacity, and overall compromised performance. The vehicle may struggle to climb inclines, navigate challenging terrain, or maintain speed efficiently.

6. Increased Fuel Consumption:

A malfunctioning differential gear can contribute to increased fuel consumption. When the gear fails to distribute torque properly, the engine may need to work harder to compensate for the lack of power transmission. This increased workload can lead to higher fuel consumption, as the engine consumes more fuel to maintain performance levels.

7. Safety Concerns:

A malfunctioning differential gear can pose safety concerns for the driver and passengers. Limited traction, poor handling, and compromised stability increase the risk of accidents, especially in adverse weather conditions or emergency situations. It is crucial to address any differential gear issues promptly to ensure the safe operation of the vehicle.

In summary, a malfunctioning differential gear can have a significant impact on a vehicle’s performance. It can result in limited traction, poor handling and stability, increased tire wear, abnormal noises and vibrations, loss of power and performance, increased fuel consumption, and safety concerns. Regular maintenance, prompt repairs, and addressing differential gear issues can help maintain the vehicle’s performance, drivability, and overall safety.

differential gear

How do differential gears interact with the suspension system of a vehicle?

Differential gears interact with the suspension system of a vehicle in several ways. Here’s a detailed explanation of their interaction:

  • Power Transmission: The primary function of differential gears is to distribute power from the engine to the wheels. The power is transmitted through the drivetrain, which includes the transmission, driveshaft, and differential gears. The differential gears are located within the rear axle assembly and connect to the wheels via the axle shafts. As the suspension system allows the wheels to move up and down independently, the differential gears accommodate these movements to ensure smooth and consistent power transmission.
  • Wheel Movement: The suspension system of a vehicle allows the wheels to move vertically to absorb road irregularities, bumps, and vibrations. This movement is essential for providing a comfortable ride, maintaining tire contact with the road surface, and improving overall handling and stability. The differential gears must accommodate this wheel movement without hindering power transmission. They are mounted within the axle housing, which is connected to the suspension system, allowing the wheels to move up and down while maintaining their connection to the differential assembly.
  • Drive Axle and Halfshafts: In many vehicles, the differential gears are located within the drive axle assembly, which is an integral part of the suspension system. The drive axle assembly consists of the differential gears, axle housing, and halfshafts (also known as axle shafts). The halfshafts connect the differential gears to the wheel hubs, transmitting power from the differential to the wheels. The suspension system and differential gears work in conjunction to allow the halfshafts to flex and accommodate the vertical movement of the wheels while maintaining power delivery.
  • Torque Steer: Differential gears can also influence torque steer, which is the tendency of the vehicle to pull to one side during acceleration. Torque steer occurs when one wheel receives more torque than the other, causing an imbalance in power delivery and resulting in steering effects. Differential gears, particularly in front-wheel-drive vehicles, help manage torque steer by distributing torque between the front wheels. Advanced differential technologies, such as limited-slip differentials or electronic torque vectoring systems, can further mitigate torque steer and enhance overall vehicle stability.
  • Performance Applications: In high-performance or sport-oriented vehicles, the interaction between differential gears and the suspension system becomes even more critical. The suspension system is usually designed to provide optimal handling characteristics, including minimal body roll, precise cornering, and responsive feedback. Differential gears, particularly limited-slip differentials or electronically controlled differentials, can be specifically tuned to complement the suspension system and maximize traction, stability, and cornering performance. This integration ensures that the power delivered to the wheels is effectively utilized, enhancing the vehicle’s overall dynamic capabilities.

In summary, differential gears interact with the suspension system of a vehicle by accommodating wheel movement, transmitting power while allowing independent wheel motion, connecting to the drive axle and halfshafts, managing torque steer, and optimizing performance in high-performance applications. This interaction ensures smooth power transmission, proper handling, stability, and overall vehicle performance.

differential gear

Can you explain the concept of torque distribution in a differential gear?

Torque distribution is a fundamental concept in a differential gear that refers to the way rotational force is distributed among the wheels of a vehicle. Here’s a detailed explanation:

In a vehicle equipped with a differential gear, torque is transmitted from the engine to the differential, and then further distributed to the wheels. The differential gear ensures that torque is divided between the wheels, allowing them to receive power and propel the vehicle forward.

1. Power Input:

The torque distribution process begins with the power input from the engine. The engine generates rotational force, or torque, which is transmitted through the drivetrain to the differential gear.

2. Differential Assembly:

Within the differential gear, torque is distributed among several components, including the ring gear, pinion gear, side gears, and spider gears. The specific arrangement may differ depending on the type of differential used.

3. Side Gears and Spider Gears:

The side gears are connected to the axle shafts, which extend to the wheels. The spider gears, also known as planetary gears, are positioned between the side gears. When torque is applied to the differential assembly, it is transferred to the side gears through the spider gears.

4. Equal Torque Distribution:

In a straight-line driving scenario, where 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, resulting in equal torque distribution to both wheels. As a result, both wheels receive an equal share of power from the differential.

5. Unequal Torque Distribution:

During turns or when one wheel encounters different traction conditions, 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 results in unequal torque distribution, with the outer wheel (on the outside of the turn) receiving more torque and the inner wheel (on the inside of the turn) receiving less torque. The differential gear enables this torque differentiation, ensuring that the wheels can rotate independently while still receiving power from the differential.

6. Optimizing Traction:

The torque distribution in a differential gear plays a crucial role in optimizing traction. Unequal torque distribution allows the wheel with better traction to receive more power, maximizing the vehicle’s ability to maintain forward motion. This is particularly beneficial in situations where one wheel is on a slippery surface or encounters reduced traction conditions.

7. Differential Types:

It’s important to note that different types of differentials can provide varying torque distribution characteristics. For example, open differentials primarily distribute torque equally, while limited-slip differentials and locking differentials offer varying degrees of torque biasing to improve traction in specific conditions.

In summary, torque distribution in a differential gear refers to the division of rotational force among the wheels of a vehicle. The differential gear enables equal torque distribution during straight-line driving and unequal torque distribution during turns or varied traction conditions. By optimizing torque distribution, the differential gear ensures efficient power delivery, traction optimization, and overall performance of the vehicle.

China high quality CZPTTruck Parts AC16 Axle Differential Driving Cylindrical Gear Az9981320130 top gearChina high quality CZPTTruck Parts AC16 Axle Differential Driving Cylindrical Gear Az9981320130 top gear
editor by CX 2023-11-10