drum brake

the internal work and parts of a drum brake commonly used in scooters and some motorcycles (as a back brake)

The idea is very simple, there are two halves of "shoes" (yes thats what they call 'em.. the orange colored crescents) covered with a braking material.

When ever the driver/rider squize the brakes the arm rotates and push the two shoes outside causing a frickion between the braking material (dark grey) and the outside moving drum (outer ring, lighter grey).

PROS of such system is probably simplicity
Its probably heavier too, due to the massive metal drum it needs.

CONS are many....
brakes less efficient than a disk brake, especially in hard usage where it will probably overheat causing drastically reduced braking ability (yes, you can loose brakes if you dont use them correctly, especially in large TRUCKS that use drum brakes actuated by air pressure)

another thing is dimensions - drum brake is less compact then a disk brake

you can see a HQ version of the video here:
http://www.motoetc.com/home/2010/03/the-internal-work-of-a-drum-brake-mechanism/

Category:

Autos & Vehicles

Tags:

• drum
• brake
• motorcycle
• scooters
• cars
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[kregzdeM3]

Seriously. If you can invent something like this... Cant you invent a disk break? Becouse its so much simpler...

[golbis]

@kregzdeM3 its only after you see an invention , you realize how simple it is ha? :) the hard part is to think of it first :P see the paper clip for ex....

but i guess a more logical explanation is that drum brake was used with similar low tech systems - weak motors,low speed, low grip. its only after engines were stronger and grip was better, vehicles went faster and it was just logical for someone to be the first to invent sth better, the disk brake...

[VRSlash91]

Exact what i wanted to know... 5/5

[sandghostQC]

@kregzdeM3 just to remind you drum brake take much time to break than disk brake

[kmonsok]

thanks, now i understand how it works

[josephtan1818]

since 1990s, many lorry in europe has been using disc brake actuated by air. in US as the new braking regulation is introduced in 2008, many lorry in US are adopting disc brake as big as 22.5 inch rotor. from 60 mph to complete stop, a 6x4 tractor with all wheel disc brake stop at 200ft compared 355ft with all wheel drum brake

[DSchruteBeets]

God bless Discs

[astga62010]

drum brake with toggle lever,rotracting spring,brake shoe,brake liningsand drum wheel

[CristinaLoisPrados]

El freno de tambor es un tipo de freno en el que la fricción se causa por un par de zapatas que presionan contra la superficie interior de un tambor giratorio, el cual está conectado al eje o la rueda.

[atalayapark]

I still dont get it!

[nosequiters]

I've invented a drum and bass break it doesn't slow your car down but you can dance to it and it it sounds amazing

[crumbler66]

legit

[velniukas666]

10/10