Harken 57mm Aluminum ESP Block — Swivel Boat J/111 and collision prevention

and collision prevention

epoxy sealed and humidity resistant

Combining axial and thrust bearings into a single set of durable V-shaped titanium rollers

Also includes coverage of the northern most tip of Denmark including Skagen and Frederikshavn

2 galvanzied tie plates

Harken 57mm Aluminum ESP Block — Swivel Boat J/111 and collision preventionCruising ESP blocks complement our existing blocks in looks and function, but are simpler in design and construction. Sheaves feature sleeve bearings to handle high static loads and are ideal for halyards or limited purchase systems on cruising boats. Part No. 6059 Sheave (mm) 57 mm Sheave (in) 2 1 4 in Maximum line (mm) 16 mm Maximum line (in) 5 8 in Maximum working load (kg) 1000 kg Maximum working load (lb) 2205 lb