[Features] Bearings are used for superior durability. [Uses] Gates, factories, doorways, various warehouses, etc.; Specifications: Flat type steel frame; Size: 5.1 inches (130 mm); Frame thickness: 0.2 inches (4 mm); Bearing: #6204ZZ (Inner diameter 0.8 inches (20 mm) x Outer diameter 1.9 inches (47 mm) x Width 0.6 inches (14 mm) (14 mm) (14 mm) (14 mm) (2 mm) (2 mm) (2 mm) (2 mm); Car material: S45700000.6.6 lbs (2 kg) Load capacity is vertically load-load capacity is 5700.6 lbs (180000 lbs (180 lbs (1800 lbs (180 lbs (1800 lbs (It can be used as a weight capacity This load capacity is not applicable for vehicles only. *This item is ordered and cannot be returned. Please acknowledge