2007-08-01 08:32:57 · 6 answers · asked by loveag 2 in Cars & Transportation ➔ Maintenance & Repairs
Drum brakes will fade when applied for a long time as in down a mountain because the brake fluid will boil and that puts air in the brake system. For better gas mileage and longer brake life, it is best to let the car slow with out the use of brakes until near the stop when possible. Most cars today have disk front and drum rear brakes. The more expensive cars have disk brakes front and rear. The link below will provide a detailed description.
2007-08-01 08:44:07 · answer #1 · answered by Pey 7 · 0⤊ 0⤋
Disc brakes are the better of the two. They are definitely the ones on the front of your car or truck that have pads that grip both sides of the rotor "disc". Much more efficiency in stopping the vehicles. Nowadays, all new vehicles come equipped with 4 wheel disc, which is best. Old style drum brakes are not as good at stopping the cars but worked. They had a "drum" on the rear wheels (and for older cars front too) and there were "shoes" that were spring-retracted, when the brake was applied, they pressed outward against the inside of this drum. They were adjustable through a slot in the back of the wheel assembly, or automatic by backing up and braking repeatedly. This looks like you're driving like an idiot, though. I hope this helps.
2007-08-01 15:46:28 · answer #2 · answered by firefiter 5 · 0⤊ 0⤋
A brake "drum" is like a bowl with straight sides. The brake linings are curved and are pressed outward against the straight wall of the bowl.
A disk brake "rotor" is like a metal platter where two flat brake linings are sandwiched on both sides of the platter and squeezed in on the platter as it rotates.
I might add, disc brakes are a LOT easier to service than drum brakes. I wish they would do away with drum brakes altogether.
2007-08-01 15:43:52 · answer #3 · answered by A Toast For Trayvon 4 · 0⤊ 0⤋
The difference is that 'disc' brakes compress pads on a moving disc (your rotor) between them.
Drum brakes have pads that press in an outward motion against a 'drum'.
hopefully that helps
2007-08-01 15:37:40 · answer #4 · answered by Veteranschoice 4 · 0⤊ 0⤋
'Drum breaks' : a hollow drum is attached to the wheel of the vehicle called the hub and inside that hollow hub two break linings are fixed, made up of asbestos sheets linked with metal rivetts, with a machanism of pushing towrds the inner surface of the hub and when we apply break peddal to stop the vehilce, the sheets(break shoes) execrcise the force against the inner surface of the drum and stops the vehicle. It is of two types one is mechanical and the other is hydraulic based and in the hydraulic system 'Break fluid ' is used.
'Disk breaks': There a metal disk made up of high quality metal is fixed to the wheel having both the side of the disk fully polished and there are break shoes holding on both the side of the disk in opposite direction and when the break applied both the break shoes press hold together the disk tightly resulting in the immediate stop of the vehicle.
The disk breaks are visble outer side of the vehicle and the drum brakes are built inside the hub.
The disk breaks are preferable over the drum breaks .
2007-08-02 06:45:15 · answer #5 · answered by Samar 2 · 0⤊ 0⤋
Two different styles and types of brakes. Use the yahoo encyclopedia to find pictures and a description of how it works. good luck
2007-08-01 15:36:36 · answer #6 · answered by Fordman 7 · 0⤊ 1⤋