Skelang 4 Pcs 2 U Type Groove Wheel Heavy Duty Rigid Caster with Bracket for Inverted Track Rolling Gate Industrial Machines Wire Rope Rail Loading Capacity 660 Lbs

U-groove wheel is especially applied to the round tube track. Galvanized on the steel surface, it is rigid strong and durable to load up to 660 lbs. Fits to 3/4" round tube rail, the U-shaped groove decreases friction of sharp sided track. Used widely to inverted track, yard gate, rolling gate, patio sliding gate, industrial machines, wire rope rail device, containers racks, baby gate, dog gate. Specifications: Material: Galvanized steel Wheel Diameter: 2” Loading Capacity: 660 lbs Package Includes: 4 × U-groove wheels