When the brakes are relined, brakes and rotors are usually replaced because they allow the force of the friction formed by the brake pads. When applying brakes, the pad rubs against the rotor and creates friction, which causes heat and destroys both the brake pad and rotor. Rotors are harder than pad because it is made up of cast iron. Cast iron is hard, cheaper than aluminum or steel, and it disperses and absorbs heat to cool the brakes. The heat that is created in the rotors depends on the weight and speed of the vehicle. A 60 mph stop can simply raise the temperature of the front rotors 150 to 250 degrees.
If the temperature of the rotor is increasing due to a steep road or driving forcefully, the brake may begin to fade because of an increased heat. When this happens, it requires more pedal force to slow the movement of the vehicle. In the end, the peak may be reached were in the brakes cannot produce enough friction no matter how hard the driver steps on the pedal.
Huge and heavy vehicles apparently produce more braking heat compared to small and light cars. Therefore, the rotors found on trucks are bigger than on cars. The larger the rotors, the more heat it can hold. Race cars and top performing cars usually have huge rotors for them to stop without fully steeping on the brakes. Most rotors have ribbed cooling fins linking the rotor faces to assist in pulling air into the rotor for better cooling effect. Vented rotors are usually located in front of the brakes. While unvented or solid rotors have no inner cooling fins. These are used typically for light function applications or stern brake cars with four wheel disc brakes.
Checking the brake pad and rotors is very important and this is one of the best things you can do to make sure that your vehicle is safe. The front brakes are normally used for stopping compared to back brakes. In inspecting your rotors, remove the tire for an easy access to view all parts. Regular tire rotation can also be used, but you can jus chock the wheels, jack up your tire and remove it. The rotor is the round disc that the brakes press to immobilize the car. It must be shiny from inner to the outer edge.
There is nothing to worry if you see some lines because this is normal. Yet, if you felt that there are some pronounced grooves or rough spots in the disc, you should change your rotors. In general, these are a basic process and rotors are not very expensive. It is better to buy a new one rather than refined by a machine shop because this can cause thinning of the metal. Therefore, brakes and rotors must always be checked and replaced immediately if needed.
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In this article we’ll take a very close look at how cars have changed throughout the years. Perhaps the most important aspect that has changed is the improved safety standards. Well with cars now having up to 8 airbags and seatbelts, it is very much evident that they are indeed much safer indeed!
Modern cars nowadays provide a huge, wide range of safety features that include standard equipment available in even the most base models. In fact, the more safety features you have installed in your car, the more likely you are to save on insurance costs and charges!
AIR BAGS
This is by far the most necessary features for surviving any type of crash. Air bags are perfectly designed to protect the driver’s and occupants faces and heads from striking the hard surface interior parts of the vehicle. While considered very effective, air bags, in head on collisions can deploy in less than 1/20th of a second! Protection is even more enhanced of course, when the occupants us their safety seat belts. And seat belts do work! You can ask anyone that’s been in any type of car crash and you’ll see that they are indeed very valuable in providing safety in the most highest of levels!
In the past, airbag systems were often considered to be harmful, especially for children who sit in the front passenger side seat. This was remedied by making the enforcement of the airbags themselves less forceful, while still not reducing their effectiveness. They are in fact, still safe as ever, even with this lower forceful impact. As a general rule of thumb, parents should always keep their kids in the back seat, as this is by far, the safest possible place to keep any child.
ANTI-LOCK BRAKES
Often times when a car brakes, the actual brakes themselves may lock up, causing a frictional skidding of the car that may prove to be very unsafe. To prevent this, anti-lock brakes were invented. Typically, with standard anti-lock brakes, just a gently pressing of the brakes may be necessary, however, there are some anti-lock braking systems that might require more hard breaking in certain situations.
THE ACTUAL SIZE OF THE CAR
Bigger, larger cars often provide more protection for passengers, whereas smaller cars provide less protection. Unfortunately, the occupants of a small vehicle might be more injured or even severely injured, as a result of a crash rather than occupants in larger vehicles.
SAFETY BELTS
Pretty much every single vehicle sold today provide either manual or automatic seat belts. It would be very wise for both the drivers and the passengers to always make full use of these safety restraints, to prevent injury in crashes, even little crashes. However, the best protection in this case is assured by a combination of lap and shoulder belt restraint.
Many vehicles nowadays also offer standard head restraints. These often times will help the passengers head from snapping back and forth in the actual even of a crash. Most vehicles have these restraints for passengers sitting in the rear area seats also. For better performance of these restraints, the actual head restraints should be positioned in accordance to the persons height, etc.
So as we can see from here, technology has really advanced. Cars of the beginning of car manufacturing cannot compare to the cars of today in terms of safety, etc.
Tony Arehart is the Owner and Administrator of Gears Garage, an auto forum for hardcore car enthusiasts. If you would enjoy talking shop with fellow car fanatics from the auto community, stop by and become a member today.
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