Rubber On Iron Caster Wheels: Your Caster Connection
Featuring weight capacities of 350 to 2100 pounds per wheel, the 80 Shore A black rubber is chemically bonded to a semi-steel wheel core and has an operating temperature range of -40 to +180 degrees Fahrenheit. Providing good floor protection and quiet movement, it is an economically friendly wheel that provides decent resistance to shock and vibration, but is not recommended for environments where water or floor debris is present. It is also not recommended for delicate flooring, as it can leave marks when operated in less than ideal circumstances.