Orchid-4 Sliding Door Wheels 50mm, Steel Wheels with U-Groove, U-Groove Wheel for Reverse Track, Industrial Machine, Rolling Door, Load Capacity 300kg per wheel

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