The Ridgid jointer is my large gloat. the casters under it and the bandsaw are my small gloats. The cast iron surfaces on the jointer are like a mirror. They put my Delta equipment to shame. The casters came from Rockler #58866 $34.98/set of 4. They have 1/2" threaded spindle, so I had to drill out so they would fit. The swivel and wheel both lock, so I can position the wheels outboard of the machines for more stability. They work very well on both machines and they dont catch debris like a mobile base plus are cheaper. It is much easier to roll a 200# machine than it is to drag it.
James