I found this on the Vintage Machinery website.
115.19801 Craftsman 1/2 hp: original-MRC-202-SFF-4 (USA) 5/8 bore double shield; Accurate replacement-6202-5/8
It's a different model number, but the original bearing has the same ID number as yours.
Accurate is a company that sells bearings. It...
When I switched out the bearings on my Craftsman drill press, I set the bearings on a light bulb while the shaft was in the freezer. It worked out well for me.
Every once in a while one of those will show up on Craigslist. Sometimes with the tools still attached. Of course if you are looking for one, it'll never show up.
If you go to Searspartsdirect.com and enter the model number of your drill press they may still sell that part. They do for mine and it looks identical to yours. Probably pricey though. Old hardware stores or farm supply stores may be a better bet.