Description Manufacturer part #: 15.41 Technical Description Features American Metric Name Single Sheave size 7/8 in 22 mm Max line size 1/8 in 3 mm Breaking Load 1,102 lb 500 kg Hole Spacing 2 1/8 in- 2 1/4 in 54-57 mm Hole Diameter 3/16 in 5 mm