Up for sale here is this NOS vintage idler wheel. The rubber is still soft, and this is guaranteed to be good. I do not know what model number this is or what machines this goes to, sorry. It is 1.97" in diameter (so probably 2" officially), has a .198" diameter hole (so .197 or .2" officially), has .25" thick rubber, and has a slight bevel on the edges. This has a bearing on the inside, which is unusual. The package that this came in (not included) has a note that reads "A2-M9 Idler w/Bearing."
Please be sure this is the exact idler wheel you are looking for before you buy it. Please see my pictures for details.
US shipping and handling is $6, and international is $20, no matter what quantity you buy. All my small parts are set up for combined shipping, so just use the "add to cart" feature and then check out all at once, and it will combine shipping. If you have any questions, please ask.
I have many more idler wheels and other vintage electronics listed--feel free to take a look!