Heavy Duty Ball Transfer Units manufactured from one piece of solid steel body with a seal and dirt exit hole for maximum efficiency and smooth running. Suitable for use in air cargo decks and other heavy load applications. Dynamic loadings of up to 4000kg. A range of fixing clips are available. The 800, 805, 806, 807, 808 and 810 range of ball units are dimensionally compatible with our Euro Unit range of ball transfer units.