polyurethane wheel with Double bearings

1. Horn: Double ball raceways design, black color Rugged painted.
2. Wheel: Orange Polyurethane (90A~95A) / double ball bearings.
3. Suggest to use for most environment. Special for skidproot application. Like workshops, warehouses, manufacturing and restaurant. Temperature range: -35℃~80℃
4. Load Capacity: 4":235KG,  5":295KG,  6":350KG,  8":370KG