CasterHQ - 5 inch X 2 inch Green Polyurethane ON CAST Iron CORE - 1100 LBS Cap - Replacement Caster Wheel

CasterHQ's Green Polyurethane elastomer tread is chemically bonded to a black cast iron core. Offers higher weight capacities while providing good floor protection and a smooth quiet rolling operation. Optional precision ball bearings bearings require less effort to start up and maintain a rolling load; they also generate less friction heat and may prolong the life of the wheel. Works well in both indoor and outdoor environments; however a cast iron core can rust; if this is an issue look at using aluminum or plastic core wheels. Features Durometer: 95 Shore A (+/-5). Temperature range: -40° F to 180° F.