Marastar Flat-Free Polyurethane Foam Wheel: 6 5/16 In Wheel Dia., 2 1/2 In Wheel Wd, 400 Lb, Steel

Flat-free polyurethane foam wheels absorb shock and vibration for a cushioned ride and will not go flat if punctured. They are suitable for rolling over rough or uneven terrain in areas that may contain sharp debris such as nails, metal shavings, or rocks. Flat-free wheels are heavier than pneumatic or semipneumatic wheels, and they provide more shock absorption than semipneumatic wheels.

Pneumatic, semipneumatic, and flat-free wheels have air-filled, foam-filled, or solid-rubber tires that absorb more shock and vibration and produce less noise than standard wheels. These wheels are used on carts, trucks, dollies, and other equipment that will be transporting fragile or vibration-sensitive loads in laboratory, medical, or aerospace facilities. They are also installed on wheelbarrows and other equipment that will be used for moving loads over rough or uneven surfaces in outdoor areas and industrial facilities. The wheels allow the equipment to roll, which reduces the effort it takes to reposition or move the equipment.