Ultra-Load Capacity & Industrial Durability: Each heavy duty caster independently supports up to 625 lbs (2500 lbs total for 4 wheels). Corrosion-resistant PP material withstands harsh environments in factories, warehouses, and logistics 360 Degree Smooth Swivel & Longevity: W B D WEIBIDA Industrial grade caster wheels have double ball bearings and precision axle enable one-handed steering even under heavy loads. Tested for tens of thousands cycles with friction wear Quick installation and versatility: Universal Heavy Duty Wheels have a 3.9 IN X 4.5 IN mounting plate, and the kit includes M8 bolts and anti-detachment bolts to fit most carts, shelves, and toolboxes - installs in minutes All-Terrain Performance: Wide anti-slip tread grips slopes/uneven surfaces. Stable in extreme temperatures from -20°C to 80°C. W B D WEIBIDA industrial casters designed for outdoor high-intensity handling scenarios Silent and Non-Marking Wheel Design: W B D WEIBIDA heavy-duty casters are molded in one piece of PP material, which completely eliminates the deformation of traditional PVC wheels, and the pain point of PU wheels, and at the same time reduces noise by 50%, prevents scratches on hardwood floors or tiles, and ensures quiet operation in the room Professional Heavy Duty Universal Wheel Solution W B D WEIBIDA industrial casters designed for high-intensity handling scenarios, using PP material one-piece molding process, with double-layer reinforced wheel structure, a complete farewell to the traditional PVC wheels are easy to deform, PU wheels are easy to peel off the glue of the pain points. Core advantages include: ✅ Military grade load bearing performance Each wheel is certified by 2500 pounds of dynamic load, and the metal bracket is antioxidized by salt spray test, and does not rust in long-term humid environment. ✅ Intelligent Bearing System. Double-row ball bearing design reduces jamming, low push force when loaded with 300kg, women can also operate it easily. ✅ Scene full coverage design Warehousing scenario: adaptable to standard pallet trucks, racking chassis Industrial scenario: machinery and equipment lifting, toolbox moving Commercial scenario: catering trolley, hotel luggage trolley Technical parameters Material: PP wheel surface + carbon steel support Wheel diameter: 4 inches Temperature tolerance: -20℃~80 Steering angle: 360° omni-directional rotation