need to reduce the speed on the drill press below 500 rpm
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need to reduce the speed on the drill press below 500 rpm
It sounds like your drill press may have only 1 belt that goes from the motor to the quill if this is the case you might add a second stage groved pulley like in the photo below
Attachment 15791
Grizzly pulley, p/n P7943067 is for a 3L belt, the two pulleys on the Atlas DP220 are 4L(1/2"). I found a 4L pulley but need to adapt to Grizzly P7943063 center shaft. What bore is the Grizzly pulley and how are the bearings mounted on the center shaft and pulley?