3 Inch Red PU Double Bearing Directional Casters Industrial Casters. High-Tech Polyurethane Material: Polyurethane rubber strips mechanically locked and injected into polyolefin wheel cores for durability. Double Bearing Design: Equipped with double bearings for smooth rotation and heavy load capacity up to 100kg. Customization Services: OEM/ODM services available including logo printing, custom molds, and branded packaging. One Year Warranty: Comprehensive one-year warranty coverage for all mechanical equipment and casters. Strict Quality Testing: Products undergo life, salt spray, and impact resistance tests before leaving the factory. ISO9001 Certified: Company holds ISO9001:2015 certification ensuring high-quality management standards. Fast Sample Lead Time: Caster samples ready within 5-7 days for quick evaluation and testing. Free Sample Availability: Free caster samples provided; customer only pays for international express freight.