Size 3 Single Plain Bearing Block with Swivel Barton plain bearing blocks have a precision molded acetal sheave running on a large diameter brass bearing, ensuring free running under the highest of loads. Features: Fully swiveling head with removable shackle For use on dinghies, day boats, and light cruising yachts Specifications Dimensions: Length: mm 100 / inch 3-15/16 in. Weight grams: 73 g. Single mm 45 x 13 / inch 1-3/4 in. x 1/2 in. Max Rope Diameter: mm 10 / inch 3/8 in. SWL: kg 400 / lbs. 881 Break Load: kg 800 / lbs. 1763 Note: break loads where break and safe working loads are stated, it is assumed that all sheaves are evenly loaded as in a purchase tackle
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