OPF series, fiddle block, sheave Ø 100, SWL 3500 kg Manufacturer part #:01007 Technical Description Features American Metric Ø sheave (D) 3.94 in 100 mm Side bearing Delrin balls Delrin balls Radial bearing composite fibre composite fibre Weight 2 lbs 0,90 kg Ø max line 0.63 in 16 mm SWL 7716.2 lbs 3500 kg Material Aluminum Aluminum Sheave material Aluminum Aluminum Shackle Mod. 010HR 010HR Ø small sheave 2.52 in 64 mm