SOLID QUALITY ROLLER STEEL WHEEL: The u-groove casters are made of high quality galvanized steel, corrosion resistant and waterproof, rigid strong, durable.
LOAD CAPACITY: The U-groove wheel slides more evenly, stably and loads more on the round tube track, make it convenient to push gate.
DOUBLE ROLL BEARINGS: Double roll bearings in the sliding gate wheel make it easy to push the gate，sliding stably and smoothly.
MULTI-APPLICATIONS: These sliding gate rollers can be used for heavy-duty sliding gates, inverted tracks, yard gates, rolling shutters, industrial machines, wire rope rails, container shelves, garage gate, etc.
