HOTYELL Trolley Assembly, Silent Rollers Wheel for 1-3/4" Wide and 2-1/4" or Taller Rail Hanging Track, Beam Trolley Used for Heavy Barn or Shed

HOTYELL Trolley Assembly, Silent Rollers Wheel for 1-3/4" Wide and 2-1/4" or Taller Rail Hanging Track, Beam Trolley Used for Heavy Barn or Shed

1 YEAR WARRANTY: Professional manufacturers not only provide professional beam trolleys, but also provide professional services. No matter what problems are encountered when using our roller trolleys, we will solve it for you within 6 hours. Widely Used: If your hanging strut channel is 1-3/4 " wide and 2-1/4" tall or taller, then our 4 wheel trolley assembly are perfect for you, they widely used as barn door rollers, sliding door rollers replacement or garage door wheels. Heavy Load: Many heavy-duty barn doors have our trollys installed, and the upgraded solid alloy steel is stronger and more durable, you don't even have to worry about a hurricane. Equipped with M12 bolt, it can hold up to 450 lbs. Rustproof: The latest galvanizing zinc technology makes the surface coating thicker, thus ensuring our beam trolleys better anti-rust performance, even if it is used outdoors in the wind and the sun for many years, it will not rust. Silent and Smooth: After many years of use, you can even push a heavy sliding door with one finger. Higher processing precision bearing balls ensure the smoothness of the bearing rotation. The curved edge of the roller reduces the bonding area with the track and reduces the resistance.