I am considering buying this disk. The man says it is an IH disk. Every IH disk that I have owned or seen was an angle iron frame disk. This is a tubular frame disk. I do not believe this is an IH disk. Does anyone have any idea what brand of disk this is?

I recently bought a Ford Flexo Disc. It has a bearing out on one of the gangs. The number on the flange is 85MS 2. It also has the letters FNIR on the flange along with the word FLANGETTE. I am hoping these bearings are still available. If so can someone please direct me on where I might find...