? What is a gearbox

? What is a gearbox

? What is a gearbox

The gearbox is responsible for adjusting the engine torque according to the needs of the wheels. The gearbox is divided into two categories, automatic and manual, each of which has its own advantages and disadvantages. Gearbox is one of the components of power transmission and allows drivers to drive at different speeds in different conditions. In this article, we have tried to explain about the gearbox of this beating heart of the engine, such as the role of the gearbox in the car, the types of gearboxes, how to maintain them and the signs of gearbox failure. Stay with us until the end.

? What is the role and function of the gearbox in the car

The gearbox is one of the vital components of the car that adjusts the engine speed according to the wheels.

  • Changing the torque and engine speed: the gearbox changes the torque and engine speed according to the needs of the wheels. In this way, the driver can drive at different speeds and in different conditions.
  • Reversing motion: The gearbox allows the vehicle to reverse.
  • Transmission of power to the wheels: The transmission transmits power from the engine to the wheels.
  • what is gearboxwhat is gearbox
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?What is the relationship between engine and gearbox

Engine and gearbox are two vital components in the vehicle's power transmission system. They are inextricably linked.

 : Engine Duties  

Production of torque and engine speed

Conversion of fuel chemical energy into mechanical energy

: Functions of the gearbox  

Changing the torque and engine speed to fit the needs of the wheels

Reverse motion

Power transmission to the wheels

 : Connection between engine and gearbox  

The engine is connected to the gearbox through the crankshaft.

The crankshaft transfers engine torque and speed to the gearbox.

The gearbox changes the torque and engine speed according to the needs of the wheels

The transmission transmits power to the wheels through shafts and gears.

In short, the engine and gearbox work together to transfer the necessary force to the wheels.

 : Important points about the relationship between engine and gearbox

  • Coordination between engine and gearbox is of great importance. If there is no coordination, the efficiency of the car will decrease and the engine and gearbox may be damaged.
  • Timely gear shifting is essential to maintain harmony between engine and transmission.
  • The use of suitable and high-quality gearbox oil is also very important for the correct operation of the gearbox and maintaining the relationship between the engine and the
  • gearbox.
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?What are the main components of the gearbox

Shell: The gearbox shell is usually made of aluminum or cast iron and must be strong enough to withstand the torque and speed of the engine.

Shafts: Shafts are metal rods that connect gears. Shafts must be of high-quality steel to withstand the torque and RPM of the engine without bending or breaking.

Gears: Gears are toothed parts that are responsible for changing the torque and speed of the engine. Gears should be made of steel or hard alloys to be resistant to wear and corrosion.

Bearings: Bearings must be made of low-friction material so that they can rotate easily. They are the parts that fit between shafts and gears and reduce friction.

Lubrication system: The lubrication system is responsible for lubricating the components of the gearbox and reducing friction

Clutch system: The clutch system is responsible for connecting and disconnecting the connection between the engine and the gearbox.

Gear shifting system: The gear shifting system is responsible for changing gears.

Torque converter: The torque converter in automatic transmissions is responsible for transferring the torque of the engine to the transmission

relationship between engine and gearbox

 : Types of gearboxes

: Transmissions are produced in two general types, manual and automatic

Manual gearbox: In this type of transmission, the driver changes gears manually using the clutch and gear shift lever. Manual transmissions are more popular among professional drivers due to their high efficiency and lower depreciation.

Automatic gearbox: In this type of gearbox, the gear change is done automatically by the computer system of the car. Automatic transmissions make driving easier and are more suitable for driving in heavy traffic.

In addition to these two general types, there are other gearbox such as CVT gearbox and double clutch gearbox, each of which has its own advantages and disadvantages.

 : Factors that cause gearbox failure

 : Several factors can cause transmission failure, including

Improper driving: Driving at high speed, improper gear shifting and failure to change gearbox oil on time are among the causes of gearbox failure.

Depreciation: With the passage of time and the increase in the performance of the car, the parts of the gearbox wear out and may need to be replaced.

Technical defect: Technical defect in gearbox parts can also cause its failure.

 : Signs and symptoms of gearbox failure

If the car's gearbox has the following signs, it is broken and needs to be repaired.

Hearing unusual sounds from the gearbox: hearing the sounds of screaming, howling or rattling from the gearbox can indicate its failure.

Difficulty in gear shifting: Difficulty in gear shifting can indicate a gearbox failure.

Gearbox oil leak: Gearbox oil can cause the gearbox oil to decrease and cause its failure.

If you see any of the above symptoms, you should visit a professional repairman to check and fix the problem.

? How to increase the lifespan of the gearbox

  1. Driving at the right speed and changing gears on time
  2. Using suitable and high-quality gearbox oil
  3. periodic gearbox service
  4. Not driving a car in inappropriate conditions

By following these tips, you can increase the lifespan of your car's gearbox and prevent it from breaking down.

List of famous gearbox brands in the world

ZF: This German company is one of the largest transmission manufacturers in the world, producing automatic and manual transmissions for a wide range of vehicles, including passenger cars, trucks and buses.

Bosch Rexroth: This German company is another major gearbox manufacturer in the world, producing industrial and hydraulic gearboxes for a wide range of industries, including agriculture, construction and mining.

Allison Transmission: This American company manufactures automatic transmissions for commercial vehicles, including buses, trucks and military equipment.

Eaton: This American company manufactures manual and automatic transmissions for a wide range of vehicles, including passenger cars, trucks and buses.

Dana: This American company manufactures manual and automatic transmissions for a wide range of vehicles, including passenger cars, trucks and buses.

:Below we answer some common questions about the gearbox

 ?What is the cause of the unusual sound of the gearbox

The unusual sound of the gearbox can be caused by the failure of the bearings, gears or other components of the gearbox.

 ? What is the cause of the hard shift of the gear

Hard shifting of gear can be caused by lack of gearbox oil, failure of bushings or other gearbox components.

? What is the cause of gearbox oil leakage

Transmission oil leakage can be caused by the failure of gaskets, O-rings, or other transmission components.

? How much does it cost to repair the gearbox

The cost of repairing the gearbox depends on the type of gearbox, the type of damage and the repairman's salary