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You can get the belting off ebay you cut it to length and splice it together by heating the ends Mark has made a video on the subject : 3 in 1 oil is what I use for oiling the bearings on my lathe. The belt should have enough tension that it does not slip but not very tight as this will risk damaging the bearings

For the lathe cone bearigs I prefer something a little thicker than 3 & 1 oil. I use hydraulic oil but a thin motor oil will also work. I purchase my hydraulic oil in a 5 gallon metal bucket from a hardware store. This is because I also use it as a solvent in a small solvent sink. For cone bearing applications a small should last several lifetimes. Small quantities can be purchased from an auto parts store. david

Seamless oring is a far better option but if you can't find anything suitable. You can buy by the meter and join. Sent from my SM-G920F using Tapatalk

Years ago I switched from the "welded" belts to seemless O-Rings. They are stronger, grip better, last longer, are inexpensive, and most importantly for me, they don't make a clacking sound every time the seam in the belt hits a pulley. I purchased mine from MSC but any industrial supplier should be able to provide them. As luck would have it, the cheapest belt material worked out to be the best for the lathe application. david

I bought a Unimat 3 lathe the other week. I have been looking around the web for different sites for spares all to do with mini lathes. I found this one, I haven’t used him but it might be of interest to a few on here. http://unimat.homestead.com/belts.html

Owner was very happy ........

Yes the lathe I have is a Coronet "Diamond" a long defunct company and it has conical bearings and yes thats the oil I use

No grease is really needed there, but I put a very little anyway to help the o-ring stay in the groove and don't pinch on the case.