Heavy objects are relatively easier to manoeuvre if you attach trolley wheels underneath them. Towline conveyor belts, tool trolleys, office chairs, shopping trolleys, carts, and hand trucks are only some applications for these caster wheels. However, you can use them for other purposes, too.Types
The two basic types are rigid and swivel trolley wheels. The rigid, or fixed, casters can roll only in a straight line, thus offering lots of stability. On the other hand, the swivel wheels rotate a full 360 degrees and can thus move in any direction. This makes them easier to move across a floor when you need to quickly and easily change directions.Size and Load Capacity
One of the most essential features of a trolley wheel is definitely its maximum load capacity. Home or office casters can carry a lighter load than heavy-duty industrial wheels, and the capacity depends on the size. Larger wheels can carry heavier loads, as they help to distribute the weight more evenly. If you want to know the load capacity of each wheel, divide the weight of the maximum load and the equipment by the number of the wheels going on the device. This way, you know what kind of wheel to look for. However, it is best to select a wheel with a slightly larger load capacity just to be on the safe side.Durability
The application of the caster wheels determines their durability. For instance, shopping trolleys and baskets that are in constant use may require new wheels more often than some other equipment that you use only every once in awhile. Heavy-duty industrial trolley wheels provide the best durability, move easily on the floor, and usually include brakes. The food industry, hospitals, and waste disposal trucks generally use medium-duty wheels. If you require wheels for heavy loads, always choose the heavy-duty option. It might seem more expensive at first, but it pays off in the long term.Material
The wheel material largely depends on the operating environment, especially the condition of the floor. When using the wheels near corrosive acids, pick wheels from polyurethane or steel. For maximum floor protection, however, opt for rubber wheels. Moreover, polyurethane combines the best of durability and floor protection, so pick this material if you need both. Office casters have evolved as well and now use non-marking materials that do not ruin your floors.