HEAVY DUTY MATERIAL: The V-groove caster is made of galvanized steel, which is heavy duty, durable, and corrosion resistant.
LOAD CAPACITY: Every caster can load up to 880lbs, great for carry up heavy duty sliding gate.
DOUBLE ROLL BEARINGS: There are two rolling bearings. Each groove can reduce the friction with the wheel, making it easy to push the gate.
SMOOTH ROLLING: These track rollers have less rolling friction on an inverted v-track, sliding smoothly and quietly.
WIDE APPLICATION: The guide pulley wheel can be used to inverted track, yard gate, patio sliding gate, rolling gate,DIY Gym Equipment,industrial machines, wire rope rail device, container racks, dog gate ...