XXL series, single web block with becket, sheave Ø 250, SWL 20000 kg Manufacturer part #:940.255 Technical Description Features American Metric Ø sheave (D) 9.84 in 250 mm Side bearing Delrin balls Delrin balls Radial bearing composite fibre composite fibre Weight 24.361 lbs 11,05 kg Ø max line 1.57 in 40 mm SWL 44092.5 lbs 20000 kg Material Aluminum Aluminum Sheave material Aluminum Aluminum