Manufacturer part #:991.073/S Technical Description Features American Metric Length (L) 4.41 in 112 mm Ø sheave (D) 2.76 in 70 mm Side bearing Delrin balls Delrin balls Radial bearing composite fibre composite fibre Ø max line 0.55 in 14 mm SWL 2204.6 lbs 1000 kg Material S.steel S.steel Sheave material Aluminum Aluminum Webbing (N. x width) 0.12x1.42 in 3 x 36 mm