If the floppy drive is a standatd PC compatible one then I'd be very inclined just to get a PC drive.

However if it's worth selling the belts as repair items then I presume the drive must be non-PC standard format.

Maybe it's an older (Apple?) format which use a variable spindle speed to maximise capacity.

Failing that there is another possiblity for the brave / stupid / desparate. TEAC made a very flexible floppy disc drive quite some time ago (early 90s?). It is notable because it has a pin matrix that is configurable with jumpers and can be configured using this matrix to operate in a number of ways. This is important for me because I had a floppy disc failure on my Ensoniq SD1. Ensoniq used a variable speed floppy disc format. By luck I had one of these drives available and after an hours worth of jumper setting changes I chanced upon the right combination and was able to read/write floppies on my Ensoniq again. This remains the case today, it's just a pity it goes out of tune all the time!

I have a hardcopy of the matrix configuration page from the floppy disc specification sheet, which I can copy and email if anyone needs it.

You may guess from the waffle that this sheet is elsewhere at present, and that until I see the sheet I can't tell you the exact model number of the drive unit!

I'll post the model number tomorrow.