Description Antal 250mm Web Block Technical Description Features Metric American Ø sheave (D) 9.84 in 250 mm Side bearing - Delrin balls Radial bearing - Composite Fibre Weight 22.81 lb 10.35 kg Ø max line 1.57 in 40 mm SWL 44092.4 lb 20000 kg Material - Aluminum Sheave material - Aluminum