Pulleys with Shafts and Bearings By PW | March 25, 2011 | Comments Off on Pulleys with Shafts and Bearings Pulleys with Shafts and Bearings Aluminum or Cast Iron. Posted in Metal Polishing Machines, Polishing Machines and tagged Aluminum, Bearings, Cast Iron, Metal Polishing Machines, Pulleys, Shafts