You can choose from a wide range of accessories for gates.
These include gate wheels of diameters from 40 mm to 150 mm, with or without frame. The larger the diameter of the wheel, the less rolling resistance. Gate wheels could either have a V grove, or a U grove. The V grove wheels normally run on a steel angle, while the U grove wheels run on a galvanized steel track reference IBFM365.
However, the carrying capacity of gate wheels does not depend upon their diameter only. The wider ones are built to carry heavier gates, while the quality of the steel, and the quality of the ball bearings can also influence their carrying capacity.