Casters In Motion’s heavy duty air cargo/conveyor casters are specifically engineered for inverted applications for cargo sorting decks, cargo dollies and conveyor lines. The casters have a fully sealed precision raceway and the cap on the raceway provides protection from the outdoor elements and protects debris from entering the raceway. The polypropylene wheel is offered with sealed precision bearings for longer, sustained rolling with less noise. This feature offers a maintenance free solution and increase the longevity of the casters in the workplace. For more information, visit: www.castersinmotion.com.