O Gauge Railroading October/November 2017 Fun 294 page 18:
Precision Turntables, Division of Magnetic Sensors Inc. , 141 Summer Street, Plantsville CT. 06479
Phone: 860-621-6816 , Web: aaaturntables.com
Operating Modular Conveyor System: Conveyor Package 27" complete with nose, std. motor, and belt P/N OCON27 $250.00
I talked with the owner once. The web sight might still need updating, but call him and he can answer all your questions. Might even sell you just the belt for a static model.
OR you could buy a Lionel belt from a parts vendor. Or make your own rather the buying something.
Paul Goodness