Planetary gear design speed reducer from Walker Turner 20" drill press. No manufacturer name on unit.
Mounts on motor shaft and operates in either 1:1 or 4 1/2:1 reduction mode.
Input bore is 3/4 but I made a 5/8 bushing to reduce the bore.
Three step pulley cast into the body with approx
2 1/2, 3 7/16, and 4 7/16 diameters. Final speeds depends on your drill press spindle pulley diameters.
$125 plus shipping from 66213 ( I'll have it packed by Mail and More )
913fred at everestkc dot net