Capstan motor used in the Fostex B16 and maybe some other units.
This motor is from a hardly used Fostex B16 and runs very quietly I have a more worn one on ebay
but this machine (at least by the heads) seeems to have had an easy life.
They are a hell of a price now new about 800$ if you can find one.
Contact me for exact price for shipping if the basket cannot work it out for you.
Only have the one in this condition offer a 30 day guarantee on it though reckon it will last a lot longer