gearbox vs transmission

Gearbox vs Transmission – (The Ins and Outs)

You’re undoubtedly aware of the fact that the gearbox is located at the rear of the Transmission, and it contains a sequence of gears that transmits engine torque to the travels and enables a car to move around. We shall examine the distinction between Gearbox vs Transmission on today’s page. Here is all the information that you require to know about transmissions and gearboxes.

What is a Gearbox?

A gearbox constitutes an enclosed gear workout or a mechanical device or element that includes a set of interconnected gears inside an enclosure, according to its most basic description.

In reality, the name encapsulates what it actually is: a box housing gears. In the simplest terms, a gearbox works like any other gear system; it changes the velocity and torque of an operating device, such as a motor, as well as a weight.

The gearbox is usually a piece of machinery that is used to enhance power while decreasing speed.

How Does a Gearbox Work?

A car’s gearbox transfers energy from its engine to the tires via a system of gears that may be moved to modify the speed plus torque. The gears are set in various configurations to provide varying speeds while retaining the engine’s efficiency.

Within the automobile, a lever or digital selector controls the gearbox, and the motorist manually chooses the required gear.

  • The driver of a manual transmission vehicle must manually shift speeds by manipulating a lever or selection.
  • The gearbox of an automobile with an automatic transmission, in comparison, uses digital sensors to alter gears in response to the workload and the velocity of the car’s engine.

It is mostly due to the vehicle’s varied needs for torque at each axle based on the route, topography, and weight.

What is a Transmission?

A transmission comprises an internal mechanism that employs gears to modify the rotational speed and orientation of a device that rotates. It’s similar to the speed shifter plus ring mechanism used in bicycles.

All of them constantly sit directly on the engine itself to guarantee the linked belt and gearing system can properly transform the engine’s burning output into physical velocity.

An automobile transmission ensures that your engine rotates at the appropriate pace for what you require without moving excessively quickly or too sluggish. It is also your responsibility to check that the amount is right.

Types of Transmissions

Transmissions Come in Three Varieties

Transmissions that are Operated by Hand

The person in charge of this gearbox controls the torque transfer with an accelerator pedal, physically shifting between speeds as needed.

Manual transmission constitutes the most basic form of transmission and frequently last the longest. However, these vehicles demand greater focus and maneuverability.

Transmissions that are Automatic

This gearbox changes speeds continuously as the car goes.

This gearbox offers a broader speed band where it will work optimally, resulting in improved overall fuel efficiency. However, transmissions that are automated have more complicated elements and are thus more prone to vehicle failure.

Transmission with Continuous Variable Speed

Instead of using gears to provide different speeds, the CVT gearbox utilizes a belt driven mechanism with two latex or metal loops.

CVT transmissions provide an infinite number of ratios as well as greater mileage. Because of its low torque management capability and inability to offer engine brakes, this type of gearbox is not suitable for off road use.

Gearbox vs Transmission: Key Differences

Gearboxes are made for use in factories and are frequently utilized to transmit energy from a powerful motor to a more compact device. Transmissions are made for usage in automobiles and are normally utilized to transmit power between an automobile’s engine to its wheels.


The system by which force is transferred from a combustion engine to the tires of an automobile is frequently referred to as the transmission. The gearing system and the transmission’s functions clearly complement each other while glancing at the delivery, yet its gearbox’s overall function is distinct.


That sequence of gears is housed in the gearbox, which is a component of the vehicle’s transmission. It is built up of a variety of gears and railways that convert the pace and intensity of a spinning source of energy into a different device.

Style and Constituents

A gearbox is generally made up of a series of gearing and axles that convey energy from the combustion chamber to the axles. A delivery, on the other hand, comprises a more complicated system that consists of a gear system, clutch, and various other parts.


A gearbox normally needs the driver to physically swap gears by sliding a lever or pushing a button, although transmission is able to be either automated or manual.

Qualities of Performance

A gearbox often has a restricted range of speed ratios, limiting the automobile’s performance in specific scenarios. In contrast, a gearbox may give a greater range of pitch ratios.


Frequently, automobiles with transmissions that are manually operated employ gearboxes. As opposed to this, a variety of vehicles employ transmissions.

Is the Transmission in the Gearbox?

In a nutshell, the gearbox is a component of the transmission as well as is essential for delivering power to the user.

The gearbox is attached to the rear of the engine as well as is the subsequent step of the shifting mechanism of an automobile, following the clutch. The grip is located between the automatic transmission and the gearbox of the car.

The gearbox serves as the transmission’s companion while acting as its intermediary. Following the clutch is finished, the gearbox comprises the next transmission step. The clutch is often attached in between it and the motor’s rear.

Contemporary manual gearbox vehicles feature a minimum of four forward speeds, one backward, and a neutral setting.


Do All Cars have a Gearbox

Do All Cars have a Gearbox?

Not every car has a gearbox. Various power transfer techniques, such as continuously variable transmissions (CVTs) or electrically powered systems, are used by certain cars.

The majority of cars still have manual or automatic transmissions, while some newer models come with contemporary CVT or dual-clutch transmissions.

In the final analysis, the manufacturer’s precise design specifications, along with performance objectives, will determine the kind of gearbox that is employed in a vehicle.

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Video Credits – Lesics

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