Disc Brake vs Drum Brake

[kamotecueman]

anu ba pinag ka iba ng dalawa? at anu ang mas malakas na preno sa dalawa??

[tidus1203]

Mas maganda ang disc brakes...

[jick.cejoco]

anu ba pinag ka iba ng dalawa? at anu ang mas malakas na preno sa dalawa??

kamotecue,
disc brakes are open brake systems where you can see the friction materials and the braking surface. drum brakes on the other hand is an enclosed system that requires the brake drum removal for inspetion. over the years when traffic gets worse every year requiring shorter stopping distances, prompted for a more effective yet faster reaction brake systems. the advantages of disc brakes are:
a: shorter stopping distances
b: ease of inspection and servicing
c: dries quicker when driven across flooded streets
d: never needs adjustment nor adjustment mechanisms that gets stuck
e: less chances of leaks
f: less chances of water intrusion
g: never requires dust cleaning compared to drum brakes
jick

[digitel]

Disc brakes are generally considered superior to drum brakes for several reasons. First, they dissipate heat better (brakes work by converting motion energy to heat energy). Under severe usage, such as repeated hard stops or riding the brakes down a long incline, disc brakes take longer to lose effectiveness (a condition known as brake fade). Disc brakes also perform better in wet weather, because centrifugal force tends to fling water off the brake disc and keep it dry, whereas drum brakes will collect some water on the inside surface where the brake shoes contact the drums.

http://cars.about.com/od/thingsyoune...discvsdrum.htm

[nels76]

I am sure Drum Brakes have its advantages as well coz it is still being used for heavy duty applications such as on trucks and buses.

[jick.cejoco]

I am sure Drum Brakes have its advantages as well coz it is still being used for heavy duty applications such as on trucks and buses.

nels,
newer trucks made by machinen fabrik auschwitz nuremberg, mercedes benz, scania, renault, volvo and other european trucks and coaches now use disc brakes. i have not seen heavy trucks in europe using drum brakes for the las year and beyond.
jick

[jut703]

I am sure Drum Brakes have its advantages as well coz it is still being used for heavy duty applications such as on trucks and buses.

Kasi mahal yung new tech. Same reason why madami pading taxi na nakanon-power steering. Mas advantageous naman ang power steering.

[jick.cejoco]

Kasi mahal yung new tech. Same reason why madami pading taxi na nakanon-power steering. Mas advantageous naman ang power steering.

jut,
the question asked was which one is better not which one is cheaper or more expensive
jick

[nels76]

Hmmm. Ah ok. That is good to hear.
Kailan kaya makakarating dito yang mga disc brakes for Trucks and Buses.

On another note, hindi ko ma-imagine how they implement a disc brake to a double-tire connected to a drive train.

[jick.cejoco]

Hmmm. Ah ok. That is good to hear.
Kailan kaya makakarating dito yang mga disc brakes for Trucks and Buses.

On another note, hindi ko ma-imagine how they implement a disc brake to a double-tire connected to a drive train.

nels,
it is not impossible, if they did with the main landing gear of the C-5 galaxy aircraft with 28 wheels, how much easier is it to put disc brakes on a rig with 18 wheels? it's proper engineering
jick

[jut703]

jut,
the question asked was which one is better not which one is cheaper or more expensive
jick

I was referring to why the majority of the trucks and buses here use drum brakes, hence the quote.

[cocoy]

trucks in mindanao choose drum brakes over disk brakes.. because using a water cooled drum brake is more effective.. another reason why they dont like disk brakes is because most of the trucks are overloaded... and the disk brakes cant seem to handle it..

mai na kita kasi ko nga rear differential for a isuzu forward truck, in my uncles house nga disk brakes.. i asked him what happened to it.. and why it wasnt being used.. he told me it worked great when the load is tama lang daw.. but when on the heavy side and ma bagal ang takbo, nag overheat daw ang disks..

im not sure though if they tried using it with the water cooling systems that you see on almost all the trucks in mindanao..

back to cars. disk brakes are definitely better..

[cocoy]

dagdag lang guys.. most of the Rural tours buses in mindanao have a retarder brake system added to the drivetrain.. its attached to the back of the transmission and works like the engine braking.

kaya in mindanao ma gulat kayo sa mga bus goin downhill parang kotse lang, ang bilis. kasi they have three sets of braking systems.

1 the engine brake, 2 the Telma retarder system and 3 the drum brakes.
heres the website.. its an interesting read talaga

http://www.telmausa.com/telma_htm/default.htm

[jjmd3_787]

Bro Cocoy is right. In our province (Cagayan Valley), trucks exclusively use drum breaks kasi hindi kakayanin ng disc breaks ang load na maaring magresulta sa overheating ng preno.

In cars, drum breaks are used as backups for the disc breaks. For lighter vehicles, the disc system is the most effective. Nowadays, many cars don't utilize drum breaks anymore. Instead, they have 4-wheel disc breaks. As for the overheating issue of disc breaks, standard discs are ventilated

... and for hi-performance cars, they utilize slotted & cross-drilled discs.

In the end, the deciding factor will depend on how these breaks will be used. The important thing is we have them to serve our rides.