I was watching that "How is it Made?" on the Discovery Channel, and they were showing the assembly of a semi trailer, and they were putting on drum brakes.
Can someone tell me are drum brakes used all around? And why not use disc brakes, I thought they were better anyways?
Thanks!
2007-03-30 10:02:53 · 8 answers · asked by Tyrone Biggums 2 in Cars & Transportation ➔ Safety
for their application, the drum are used simply because due to the size of the trucks, they use air brakes in conjunction with the hydraulic. they are easier to maintain, and last longer.
2007-03-30 10:09:32 · answer #1 · answered by Anonymous · 3⤊ 0⤋
Bendix *do* make disc air brakes for big trucks. They're just not very popular yet.
Besides, for a lot of buses, the front brakes are disc. It's the rear brakes that are drum.
2007-03-30 11:19:00 · answer #2 · answered by Kasey C 7 · 0⤊ 0⤋
Perhaps it was the total amount of surface area from both the drum and the friction material. Technology perhaps plaid a role until it caught up to the use of disk brakes.
2007-03-30 10:10:59 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Drum brakes have more surface area than disc brakes, therefore more stopping potential.
In conjunction with the airbrake system, they work very well.
2007-03-31 07:39:52 · answer #4 · answered by Nibbles 5 · 0⤊ 0⤋
drum brakes are also self acuating.
2007-03-30 10:10:09 · answer #5 · answered by Louis G 6 · 0⤊ 0⤋
because they are a airbrake system and it's just more practical to make them all the same
2007-03-30 10:10:18 · answer #6 · answered by ClassicMustang 7 · 0⤊ 0⤋
No, one is for the tractor and one is for the trailer. in case you pull the purple one first, it is going to make the two buttons pop on the comparable time. purple is for the tractor, yellow for the trailer
2016-12-15 12:29:50 · answer #7 · answered by ? 4 · 0⤊ 0⤋
more shoe ta drum contact,....than pad ta rotor........
2007-03-30 15:55:13 · answer #8 · answered by DennistheMenace 7 · 0⤊ 0⤋