Description Antal 150mm Web Block w/ Becket Hi-Load Technical Description Features Metric American Ø sheave (D) 5.91 in 150 mm Side bearing - Delrin balls Radial bearing - Composite Fibre Weight 4.45 lb 2.02 kg Ø max line 0.79 in 20 mm SWL 17637.0 lb 8000 kg Material - Aluminum Sheave material - Aluminum