OPF series, double block, sheave Ø 80, SWL 3500 kg Manufacturer part #:00803 Technical Description Features American Metric Ø sheave (D) 3.15 in 80 mm Side bearing Delrin balls Delrin balls Radial bearing composite fibre composite fibre Weight 1.2 lbs 0,54 kg Ø max line 0.55 in 14 mm SWL 7716.2 lbs 3500 kg Material Aluminum Aluminum Sheave material Plastic Plastic Shackle Mod. 010HR 010HR