The DELTA 5140059-31 Lathe Spindle is a precision-machined component that transfers rotational motion from the lathe motor to the mounted workpiece. Installed within the headstock, it rotates on bearings to maintain alignment and balance while holding chucks, faceplates, or centers in place. As the motor turns, the spindle ensures smooth, controlled movement for shaping and finishing ... https://www.wholetoolbox.com/delta-5140059-31-lathe-spindle