Harken 57mm Aluminum Low-Load Mastcollar ESP Block (6mm pin) ACR Replacement Bulbs 2 mm Width (mm) 65

2 mm Width (mm) 65

32" and 40" diameters

Cleaning and greasing every 2 years is also necessary for extending the lifetime of your gear

Model A Model Pt-1 Model B Model Pt-2 Model Pt-3   3/32 1/8 5/32 SCALE 3/16 7/32 1/4 9/32 5 6     10 11       10 9     15 13       15 12 14   18 15       20 16 16   20 16 18     25 20 19   22 18 20     28 23 21   24 19 22     30   22   26 21 24     35   27 25 28 23 25     38   30 28 30 25 27 25   40 33 30 32 27 29 27     42     33 34 29 31 39   44     36 36   33 31   45     38 38   36 33 6 46     39 39   37 34 7 47     40 40     36 9         41     37 10         42     39 11         43     40 12         44       14         45       16         46       18         47       20         49       25

Harken 57mm Aluminum Low-Load Mastcollar ESP Block (6mm pin) ACR Replacement Bulbs 2 mm Width (mm) 65Harken 57mm Aluminum Low Load Mastcollar ESP Block (6mm pin) Cruising 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. Technical Description Sheave (mm) 57 mm Sheave (in) 2 1 4 in Length (mm) 89 mm Length (in) 3 1 2 in Weight (g) 113 g Weight (oz) 4 oz Maximum