
4 Inch Heavy-Duty Sun Core PU Swivel Casters for Trolley Wheels. Dual Ball Bearings: Equipped with dual ball bearings for smooth rotation and high load capacity. Heavy-Duty PU Wheels: Features 4-inch polyurethane wheels suitable for factory and outdoor use. High Load Capacity: Single wheel supports up to 150kg for heavy equipment handling. Universal Full Brake: Comes with a universal full brake for enhanced safety and control. OEM and ODM Support: Accepts custom branding, logos, and flexible customization from designs. Fast Sample Delivery: Samples prepared within 3-5 days based on specific requirements. Strict Quality Control: 100% in-line and final inspection with comprehensive QA checks. Flexible Packaging: Offers custom packaging solutions including bags, cartons, and pallets.