
MATERIAL: This U groove wheel is made of high quality galvanized steel, strong, waterproof and anti-corrosion SIZE: The wheel diameter is 50mm, the inner width of the outer width is 27mm. Suitable for 19mm round tube orbits LOAD CAPACITY: With 3mm thick bracket, each U groove gate wheel can bear 300kg load, easy to carry for heavy gates, sliding smoothly and stably Roller Bearings: Double ball bearings make the sliding stable and smooth, easy to push the gate PERFECT FOR: Entrance gate, factory gate, sliding fence, dog gate, inverted track, industrial machine, rolling door, container shelf