22 inch Cast Iron Brake Disc 420*40mm Perforated Rotor With Center Bracket

Product Description

Cast Iron Brake Disc 420*40mm Perforated Rotor With Center Bracket

THE DISC BRAKE SYSTEM
The electric revolution may still be in its infancy, but it’s undeniable that fossil fuel-based engines are on borrowed time. However, whether they’re battery powered or fuel cell-based engines, the future greener vehicles will still need to prioritise passenger safety for any commercial or mass produced vehicles. We can then safely assume that the braking system will be unchanged for the foreseeable future, until a more revolutionary system can be produced of course.

The majority of cars produced today utilise the disc brake system; drums are still used by some manufacturers, however their effectiveness pales in comparison to the disc brake.

The disc braking system involves many different components, but at its most basic function, the system consists of a disc/rotor, a brake calliper and brake pads. When the brake pedal is applied, brake fluid creates pressure and squeezes the brake pad against the rotor and creates friction. This friction slows the rotation of the wheels and the car itself. Simple?

There is obviously a little more to it than that, with each component engineered to maximise breaking performance.

DISC/ROTOR
The disc or rotor is the largest part of the disc brake system and is fixed to each wheel, via the holes on the front of the hub (pictured). Discs usually consist of cast iron, but each will have a specific mix of metals based on the vehicle type and performance needs. The disc is the contact surface for the generation of friction in the braking system, so it needs to be able to withstand immense pressure and heat.

How often do you need to replace your brakes?
In general, there is no fixed interval for replacing your brakes, as the duration of the brake components much depends upon the vehicle as well as upon driving style. Braking can last up to 80.000 km or even more, but can be as low as 25.000-30.000 km in the case of heavy duty use. Your owners manual will have more information about the recommended intervals for brake replacements of your car’s make and model.

It is important to note, if the discs are unevenly worn or badly scored, that it is recommended to replace your brake pads and brake discs at the same time.

How can I make my brakes last longer?
The lifespan of your brakes depends on a number of factors, including:

Driving style – how hard do you usually brake? If you usually brake hard, your brakes will need replacing sooner than those of someone who gently brakes. Coasting to reduce your speed before traffic lights or junctions can also help extend the lifespan of your brakes.
Environment – both city traffic and mountainous roads require more braking than long, straight roads like motorways.
Brake quality – the quality of brake materials varies greatly by manufacturer. Some last longer than others. The adage rings true, you usually get what you pay for

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