I already googled and came up empty. I have a 2.5HP DC motor and controller that I want to put on my drill press but I can't find a pulley to fit it. The shaft is 17MM (0.669") by 1" length with an additional section 1/2-13 LHT on the end. The original treadmill pulley/flywheel takes a flat ribbed belt which I can't adapt to the DP.
So what to do? Does anyone know of a source for a V-belt(4L) pulley with a 17MM bore? Alternatively would turning the shaft down to 5/8 be feasible? Or maybe boring out a 5/8 pulley? Any suggestions or ideas on how to solve this are welcome.