I have this electric motor (http://www.electricmotorwholesale.com/LEESON-M1120186/) directly connected to a ∅30cm wheel and I need to find a plate similar to this one (http://www.aliexpress.com/item/6-5-i...550860671.html) that can handle speeds of 700-800RPM.
As far as I know, the bearings on a regular house hold "lazy susan" will not handle such RPMs, or the axial and thrust loads for that matter.
Post a sketch please, along with a better explanation of what you are trying to accomplish. Your request is unclear and incomplete.