So creating a conveyor belt in Revit must be complex, right? Wrong! It's actually very straight forward.
The way to do it is to use extrusions and draw it's outline from the side. That way you can draw practically any conveyor belt! If you need to model conveyor belts in a "V" shape (such as those found in mines) use a sweep instead of an extrusion.
Watch the video if you want to learn how to do this!