BRAKE CALIPERS
INDEX 1. 2. 3. 4. 5.
Introduction Brake Caliper Tool Motorcycle Brake Calipers Truck Brake Calipers Performance Brake Calipers
1.INTRODUCTION: Brake calipers are essential to your car's ability to stop. Most cars today have disc brakes, at least for the front wheels. But a lot of cars and trucks are now using disc brakes in the rear, too.
1.1 What makes disc brakes? ď Ž ď Ž
The job of the caliper is to slow the car's wheels by creating friction with the rotors. When you step on the brake, brake fluid from the master cylinder creates hydraulic pressure in the brake caliper, the brake caliper fits over the rotor like a clamp, forcing the pads against the rotor. The brake pads have high-friction surfaces and serve to slow the rotor down or even bring it to a complete halt.
Operation of the brake caliper
1.2 Comparison between brake disc and drum brakes
Drum Brakes: Old cars and trucks use them Loss of braking power
Brake Disc: More easily ventilated Heat doesn't tend to build up quite as fast Are used in modern vehicles
1.3 Types of brake calipers There are two main types of calipers: ď Ž Floating calipers: move in and out relative to the rotor and have one or two pistons only on the inboard side of the rotor. ď Ž Fixed calipers: don't move, but rather have pistons arranged on opposing sides of the rotor.
2. Brake Caliper Tool Brake pads don't last forever. Every time the pads in a disc brake system come in contact with the spinning rotor, they wear down a little. Gradually, these brake parts (the pads) become thinner and thinner. This is where special brake pad tools come in.
2. Brake Caliper Tool The job of a brake caliper tool is to retract the piston or pistons back into the caliper so that the brake pads can be easily removed and replaced.
3. Motorcycle Brake Calipers Motorcycles are smaller than automobiles and therefore need less stopping power. Nonetheless, the ability to slow down or stop is in some ways even more important on a motorcycle than in other vehicles.
3.1 What kind of brake calipers does a motorcycle need? The answer is relatively simple -- small and light. motorcycle brake calipers must be kept small to avoid weighing down the bike and getting in the way of the rider. Motorcycle brake calipers are commonly made of lightweight materials such as aluminum, which also has the added advantage of being rustproof.
Motorcycle brake calipers
4. Truck Brake Calipers There's no denying it: Trucks and SUVs are big. This means that trucks and SUVs need more stopping power than a car.
4. Truck Brake Calipers The stopping power of a caliper is determined by its clamping force. A caliper with a greater clamping force is capable of slowing or stopping a vehicle easier and faster than a caliper that has a lower clamping force. Good ventilation in the caliper is essential for continuous, consistent brake performance.
5. Performance Brake Calipers Disc brakes were originally developed for race cars.
5.1 Improvements in brake calipers Bigger pistons More pistons Less heat retention Differential bore calipers
CONCLUSION All of these technologies can increase the braking power provided by a caliper. For smaller cars that typically aren't driven at high speeds, this extra braking power isn't really necessary. However, the faster and more powerful a vehicle is, the more it will benefit from high-performance calipers.
Bibliography www.howstuffworks.com www.wikipedia.org www.ngbrakedisc.com www.hayesbrake.com
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