XXL series, single web block, sheave Ø 150, SWL 8000 kg Manufacturer part #:910.155/Z Technical Description Features American Metric Ø sheave (D) 5.91 in 150 mm Side bearing Delrin balls Delrin balls Radial bearing composite fibre composite fibre Weight 4.2 lbs 1,90 kg Ø max line 0.79 in 20 mm SWL 17637 lbs 8000 kg Material Aluminum Aluminum Sheave material Aluminum Aluminum