OPF series, single web block, sheave Ø 120, SWL 5000 kg Manufacturer part #:01209 Technical Description Features American Metric Ø sheave (D) 4.72 in 120 mm Side bearing Delrin balls Delrin balls Radial bearing composite fibre composite fibre Weight 1.6 lbs 0,74 kg Ø max line 0.71 in 18 mm SWL 11023.1 lbs 5000 kg Material Aluminum Aluminum Sheave material Aluminum Aluminum