HARKEN S/S ESP MAST COLLAR BLOCK 57MM

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.

Sheave Ø (mm)
57 mm

Sheave Ø (in)
2 1/4 in

Length (mm)
93.5 mm

Length (in)
3 11/16 in

Weight (g)
198 g

Weight (oz)
7 oz

Clevis pin Ø (mm)
8 mm

Clevis pin Ø (in)
5/16 in

Maximum line Ø (mm)
16 mm

Maximum line Ø (in)
5/8 in

Maximum working load (kg)
1000 kg

Maximum working load (lb)
2205 lb

Breaking load (kg)
2000 kg

Breaking load (lb)
4409 lb