3"4"5" Upgrade Fixed Medium Duty Caster PU Wheel for Trolley Cart Workbench

3"4"5" Upgrade Fixed Medium Duty Caster PU Wheel for Trolley Cart Workbench. Durable Silent PU Wheel: Premium polyurethane offers wear-resistance, slip resistance, and non-marking floor protection. Safe Dual Brake System: Premium nylon brake pads lock both wheel and swivel for safe, quiet, and smooth operation. Smooth Rotation: Double ball bearings in thickened steel ensure effortless push-pull flexibility. Anti-Corrosion Bracket: Thick steel material with black electrophoresis treatment for superior pressure resistance. Dust Protection Cover: Grey PP cover prevents dust and hair accumulation, extending service life. Multi-Size Options: Available in 2 to 6-inch diameters with load capacities ranging from 70kg to 300kg. Wide Application Range: Ideal for healthcare, food processing, warehousing, logistics, and machinery manufacturing. Comprehensive Certifications: Certified by ISO, CE, GS, TUV, RoHS, and FCC for global compliance.