Description Antal 70mm OPF Stand-Up Block U-Bolt Technical Description Features Metric American Ø Sheave (D) 2.76 in 70 mm Weight 0.71 lb 320 g Ø max line 0.47 in 12 mm SWL 11023 lb 5000 kg Side bearing - Delrin balls Radial bearing - Composite Fibre Material - Aluminum Sheave material - Resin Fixing screws 0.08 × 0.31 in 2 x Ø8 mm U bolt Mod. - 7108 Ø U bolt base 2.13 in 54 mm