These wheels have a conductive rubber tread that disperses static electricity by letting it flow to the ground. They also have a plastic core that is lighter and more corrosion-resistant than a metal core. Sometimes called conductive casters, these casters are used on carts that will be carrying electronic components and other sensitive equipment. The casters help dissipate static electricity buildup that can damage the equipment on the carts, injure people who touch the carts, or cause sparks that can ignite flammable vapors near the carts. Conductive rubber tread on plastic core wheels are used in medical settings, laboratories, computer rooms, cleanrooms, electronics manufacturing facilities, and other areas where static electricity buildup is a concern.

Wheels with an aluminum core and rubber tread weigh less and provide more resistance to rust and corrosion than wheels with a rubber tread and iron or steel core. These wheels absorb some shock, and they typically have a higher load capacity than solid rubber wheels. Rubber tread on aluminum core wheels are used on carts, racks, and similar equipment in a range of institutional and industrial applications.

These wheels each have a rubber tread that's been molded onto an iron core. They are used on industrial equipment. Iron core wheels provide good wear resistance and typically have higher load capacities than wheels with aluminum, plastic, or rubber cores. Iron will rust if it gets wet, so these wheels are best suited for dry environments.

These standard wheels each have a rubber tread that's been molded onto a steel core. Standard wheels with steel cores provide more wear resistance and have higher load capacities than standard wheels with cores that are made of iron, aluminum, plastic, or rubber. They are used on industrial equipment. Steel will rust if it gets wet, so these wheels are best suited for dry environments.

Solid rubber wheels have a rubber tread and core that are molded as a single piece. This eliminates the risk of the tread and core separating during use. Solid rubber wheels are used on carts, racks, and similar equipment in a range of institutional and industrial applications.

These wheels have been impregnated with an antimicrobial compound that prevents damaging, odor-causing microbes from growing on the wheels. They have a nonmarking rubber tread that will not leave marks on floor surfaces, making them suitable for use in indoor facilities that must maintain an attractive floor appearance. The wheels' plastic core is lighter and provides better corrosion resistance than a metal core. Antimicrobial nonmarking rubber tread on plastic core wheels are used on carts and other equipment in facilities where high standards of cleanliness must be maintained, such as medical, pharmaceutical, and food- and chemical-processing facilities.

Nonmarking wheels with a rubber tread and plastic core will not leave marks on floor surfaces. They are used in indoor facilities that must maintain an attractive floor appearance. The casters' plastic core is lighter and provides better corrosion resistance than a metal core. Nonmarking rubber tread on plastic core wheels are used on carts, racks, and similar equipment in a range of institutional and industrial applications.

Nonmarking rubber tread on aluminum core wheels will not leave marks on floor surfaces. They are used on carts, racks, and similar equipment in indoor areas where an attractive floor appearance must be maintained. Aluminum wheel cores are lighter and provide more resistance to rust and corrosion than iron or steel cores. These wheels absorb some shock, and they typically have a higher load capacity than standard solid rubber wheels. They are suitable for institutional and industrial applications.

Wheels with a rubber tread and plastic core weigh less and provide more corrosion resistance than wheels with a metal core and rubber tread. Rubber tread on plastic core wheels are used on carts, racks, and similar equipment in a range of institutional and industrial applications.