Carsun 5inch Medical Caster Wheel with Shell silent Hospital Bed Caster Wheels. Professional Manufacturer: Factory specializing in caster wheels since 2014 with 10 R&D engineers. High Load Capacity: Maximum load of 120kg per wheel with ball bearing and PP/TPR/ABS material. OEM/ODM Support: Full customization available including thread stem size M28*38mm and branding. Strict Quality Control: ISO9001:2015 certified with 100% inspection from raw material to finished product. Silent Operation: Designed with shell structure for silent hospital bed caster wheel performance. Flexible MOQ: Orders accepted for any quantity; samples arranged for orders under 5pcs per SKU. Fast Delivery: General delivery within 20 days; off-season lead time within 15 workdays. Sample Availability: Samples available anytime with cost returned during the next bulk order.