Description Antal 140mm OPF Single Foot Block Technical Description Features Metric American Length (L) 8.23 in 209 mm Width (W) 5.51 in 140 mm Height (H) 1.46 in 37 mm Ø sheave (D) 5.51 in 140 mm Side bearing - Delrin balls Radial bearing - Composite Fibre Weight 3.8 lb 1.73 kg Ø max line 0.79 in 20 mm SWL 15432.3 lb 7000 kg Material - Aluminum Sheave material - Aluminum Fixing screws 0.20 x 0.47 in 5 x Ø12 mm