Differential

Keywords

What is a differential?

A differential is a mechanical component in a car's drivetrain that allows the wheels to rotate at different speeds, particularly when turning.

Its job is to make sure the vehicle is as smooth and efficient when handling.

It does this by distributing engine torque to the wheels, compensating for the differences in distance travelled by the inner and outer wheels when turning a corner or roundabout, for example.

Related Jargon

What are dampers?

Dampers, also known as shock absorbers, are part of a vehicle's suspension system designed to control and reduce the impact of bumps in the road.

What is a 4x4 car?

A 4x4 car is one that is fitted with four-wheel drive, which means that the power created by the engine is sent to all four wheels.

What does engine torque mean in a car?

In essence, torque is the pulling power of an engine, the force that’s needed to get a car in motion, and keep it going.

What is a limited-slip differential and what is it good for?

A limited slip differential (LSD) is a device on a car that limits the amount that a wheel spins, for example, when a car loses grip on the road.

What exactly does handling mean and why is it relevant to a car?

Handling describes the way a car reacts on the road to what a driver does, using the steering wheel and pedals.

What is the wheelbase of a car?

The wheelbase of a car is the distance between the centre of the front wheel and the centre of the rear wheel.

What does brake horsepower (BHP) mean in a car?

Brake horsepower (BHP) is a measurement of how much power a car engine produces.

What does PS mean in car terms?

PS (short for Pferdestärke - Horse Strength in German) is how the power produced by an engine is measured and is defined as metric horsepower.

What does a car's ride quality mean?

Ride quality refers to a how comfortable a car is to travel in.

What is an SUV?

Sport utility vehicle - or SUV - a type of car fitted with four-wheel drive, which was built for use off-road.

What exactly does horsepower refer to in a car?

Horsepower is how the power produced by an engine is measured.

What does a car's suspension do?

A car’s suspension is designed to keep the tyres in contact with the road, while at the same time absorbing all the bumps created by driving over uneven surfaces.