Polyurethane wheel with central bearing

1. Horn: Double ball raceways design, bright zinc plated;
2. Wheel Black color Polyurethane (90~95A) /White core, Grey color thread guards(central precision ball bearing)
3. Suggest to use for many field with different environment.
Temperature range: -20℃~80℃
4. Load Capacity: 1.6":32KG, 2":40KG, 2.5":72KG, 3":100KG, 4":130KG, 5":142KG