
ball screws for bridgeport milling machine
ball mill. Bridgeport Knee Mill Ballscrew Upgrade eBay The Bridgeport Knee CNC retrofit kit mechanical components needed to automate the knee of a manual Bridgeport Jet Enco or most any similar type milling machine for motorized control All components are precision engineered Kit includes a size NEMA 42 motor mounting plate motor pulleys lead screw pulley motor cover drive belt and all