
MATERIAL: This u groove wheel is made of high quality galvanized steel, strong, waterproof and anti-corrosion SIZE: The diameter of the wheel 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-slot gate wheel can hold 300kg load, easy to carry for heavy gates, gliding smoothly and stably Roller Bearings: Double ball bearings make sliding stable and smooth, easy to push the gate PERFECT FOR: Front door, factory door, sliding fence, dog door, reverse track, industrial machine, rolling door, container shelf