If you are withing a reasonble driving distance of Marlboro, MA I know a place where you can order bearings. Post if you are and I get the name. Otherwise you can order from a bearing place on line. If you don't have your part number post the factory number of your machine. Someone or me also may have a manual which matches and can post your part number. Sometimes you can get a google match and sometimes not. Crapshoot. Getting a bearing is usually not a problem.
Did you read post #13? If your machine is different than the pictures then post your factory number. DId you expand "all" for all posts?
beetlejuice, Sorry I missed the post, never saw it. Some parts that match other machines or other appliction machines cross to Hann so availabe. Whats your machine number? Your probalby long gone. If the friction disk wedges between two metal holders then you might be able to cut another makers friction disk and use it as a replacement. I've never heard of that being done but think it would work. Take yours to a dealer and ask him to size it to the many he'll have in stock. They are not expensive so giving it a try not much.
OR
Look on Craigslist for parts machines. They come up all the time and cheap. Get two. One in the garage for parts and the other in bed with you. Everyone loves their Hann. Never met a Hann owner who did not rave about his machine.