Smooth Scrolling: W B D WEIBIDA 5 Inch heavy duty casters have premium-quality ball bearings and new rounded edge wheel design ensure effortless, ultra-smooth rolling even under heavy loads. Perfect for seamless movement in warehouses, workshops, or industrial settings—no jerking or wobbling during operation. Heavy-Duty Casters: Built to withstand extreme demands! Reinforced polypropylene cores and industrial-grade polyurethane wheels support up to 875 lbs per heavy duty caster, ideal for machinery, tool cabinets, and heavy equipment. Rugged construction resorts deformation and wear for long-term reliability. Floor protection: Non-marking, scratch-resistant 5 inch PU cart wheels safeguard delicate surfaces like hardwood, tile, or epoxy floors. Advanced tread design evenly distributes weight to eliminate dents and scuffs, making these casters ideal for hospitals, labs, or showroom environments. Chemical-Resistant: Our industrial grade caster wheels crafted from advanced polymer blends resist oils, solvents, and corrosive chemicals, ensuring durability in harsh environments like factories or automotive shops. No cracking or degradation from spills or exposure—guaranteed performance in tough conditions. Maintenance-Free Bearings: W B D WEIBIDA 5 inch heavy duty casters have sealed, self-lubricating bearings eliminate the need for greasing or upkeep. Enjoy smooth operation year after year without downtime for maintenance. Corrosion-resistant materials withstand humidity, dust, and debris for hassle-free use indoors or outdoors. Heavy-Duty PP Core Casters: Lightweight & Resilient! Engineered with a reinforced PP (polypropylene) core and precision swivel mechanism, these casters deliver smooth, quiet rolling under medium-to-heavy loads—ideal for workshops, retail carts, and industrial equipment. Each wheel supports up to 875 lbs dynamically, while the PU tread and PP core resist deformation, ensuring long-lasting performance for utility carts, racks, and mobile platforms.Floor-safe & Chemical-Resistant: The non-marking PU tread disperses weight evenly to protect hardwood, epoxy, and tile floors from dents or scratches—perfect for hospitals, labs, or commercial kitchens. PU material inherently resists oils, grease, and mild chemicals, enabling easy cleanup in garages or factories.Maintenance-Free & Durable: Sealed bearings with self-lubricating coatings eliminate rust and maintenance. The PP core’s corrosion resistance ensures reliable operation in humid or damp environments. Lightweight yet robust, these casters combine agility with strength for indoor/outdoor versatility!