Thread Tools Display Modes
Old 03-12-2016, 04:51 PM   #1
Bus Nut
Join Date: Jan 2016
Posts: 252
disc and drum brakes

I often hear people discussing hydraulic vs. pneumatic brakes. is the actual stopping mechanism still either disc or drum?
pengyou is offline   Reply With Quote
Old 03-12-2016, 06:34 PM   #2
Bus Crazy
CaptSquid's Avatar
Join Date: Nov 2015
Location: Billings, MT
Posts: 1,266
Year: 2003
Coachwork: Thomas
Chassis: HDX
Engine: Cat C7
Rated Cap: 84 passenger
Air brakes ARE drum-type brakes, but with an S-cam that actually moves the shoes outward to contact the drum surface. Likewise the hydraulic brakes, but they use hydraulic pressure to do the work.

Bear in mind that liquids are, by their very nature, incapable of being compressed to any measurable degree. Air brakes, OTOH, have about 150 lbs of air pressure behind them, much more than any hydraulic brake system.
CaptSquid is offline   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

» Featured Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 11:23 PM.

Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2020, vBulletin Solutions, Inc.