Double block with plain bearing sheaves works well where "static" sheave loads are occurring. Smooth rolling delrin(tm) sheaves ensure smooth operation.
Sheave Dia. 1 1/16" (27mm), Thickness 1 1/8" (28mm), Width 1 3/16" (30mm), Length 3 15/32" (88mm), SWL 900 lbs, Weight 3 oz. (85g), Max Line 5/16" (8mm)