Wheel Material: Phenolic Wheel Diameter:6" Tread Width:2" Bearing Size:1/2" Hub Width:2 7/16" Capacity:1200 LBS Bearing Type:Roller Application:Backroom, Food Service, Garden Center, Institutional, Loading Dock, Material Handling, Warehouse Industry:Distribution/Logistics, Garden Center, Institutional, Retail Environment Operating Temp :-30°F TO 195°F 6“ Diameter X 2" Width Caster Wheels, Phenolic Wheel, Trailer Wheels High Temperature Use for Trolleys, Flatbeds with 1/2″ Roller Bearings.