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Belt Types

 A belt conveyor system is one of many types of conveyor systems. A belt conveyor system consists of two or more pulleys  with an endless loop of carrying medium—the conveyor belt—that rotates about them. 

Common Belt Misunderstandings
Cogged belt 
is not a timing belt - the cogs do not touch anything, they simply allow more flexibility so the belt can bend more easily around a small pulley, and yet maintain a deep V (which is advantageous for good friction).
Variable Speed Belt 
is also unrelated to the timing belt - the "teeth" on the variable speed belt help to stiffen the belt as it spans across the wide gap of the variable speed pulleys.
Banded Belt 
and the Ribbed Belt are similar in design, but very different in scale. The Banded Belt is essentially a bunch of V belts banded together (when power is too high for single V belt, and also avoids "belt flipping" where a single V belt flips over and runs sideways in the V groove). 
Ribbed belt
 is popular in Automotive auxiliary drive such as alternator/power steering/air con/etc. It is essentially a flat belt with increased friction using V ribs - usually on 1 side only. 

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