Langray - 4 Pcs Wheels for 50mm Sliding Gate, Steel Wheels with U-Groove, U-Groove Wheel for Reverse Track, Industrial Machine, Rolling Door, Load

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 wheel is 22mm, the outer width is 30mm. Fits 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 sliding stable and smooth, it is easy to push the gate PERFECT FOR: Entrance door, factory door, sliding fence, dog door, reverse track, industrial machine, rolling door, container shelf Specifications: Material: Galvanized steel Wheel diameter: 50mm The inner width of the wheel: 30mm; Outer width of the wheel: & nbsp; 22mm & nbsp; Holder size: & nbsp; 68 x 38mm (L x W) Bolt hole distance: & nbsp; 47 x 18mm (L x W) Support thickness: 3 mm Loading capacity: & nbsp; 300kg The package includes: 4 × U-groove door wheels