I found the pulley on ebay and made the rest here are some pictures. I finally got around to making a slow speed adapter for my delta dp 220.
Drill Press Pulley Zeppy Io
Show Us Your Cool Old Drill Press Archive Page 5 The Garage
Vintage Delta Dp220 Bench Drill Press Sring Counter Balance Slow
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Delta Rockwell Dp 220 Slow Speed Drill Press 1290 Dp 283 Spindle
Slow Speed Adapter For My Delta Dp 220 The Home Machinist