Gate Stem,Spring Loaded Swivel Caster Heavy Duty Castor s,Gate Furniture Castor,for Gate Furniture Table Trolley,Highly Scalable 30mm,Load Capacity 50kg(Polyurethanebrake)

★Material: nylon , polyurethane , silent, , wear-resistant and pressure-resistant, strong stability, sturdiness and durability. The double bearing design is easy to move and has a strong carrying capacity, with a maximum load of 50kg. ★High quality: The gate with spring, the shock absorber is made of high-quality steel material, the surface is galvanized, rust-proof, has shock absorption function, and is durable. ★Shock absorption spring design: The length of the spring can be extended and contracted to 30mm. These sliding door s,gate castor have a spring design inside, the s can automatically adjust the height on uneven ground and,at the same time,ensure that the door can be opened and closed freely,with less noise! ★Multi-purpose: revolving door, sliding door, storage rack, trolley, flight box, trolley, tool box, speaker, cabinet, amplifier, equipment rack, various furniture, etc. ★Simple installation: Heavy-duty universal mounting plate with 4 holes, which can be easily installed on the wooden door or along the horizontal or vertical rail of the tubular door.