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Harken 40mm Zircon Blocks - Single Loop

Harken 40mm Zircon Blocks - Single Loop
Harken 40mm Zircon Blocks - Single Loop with Becket
Harken 40mm Zircon Blocks - Double Loop
Harken 40mm Zircon Blocks - Double Loop with Becket

The most efficient small boat blocks Harken has ever made

Low Friction

Ceramic ball bearings

Soft attach

700% stronger than stainless balls

£76.00

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NEW - 57mm Zircon Blocks from Harken

The most efficient small boat blocks Harken has ever made with industrial ceramic ball bearings mounted inside caged races.

More than 700% stronger in compression than stainless balls.

Ceramic is much harder and smoother than steel or composite.

Sheave and side plates are strong and reliable fibre-reinforced composite construction.

Structural head for soft attachment

40mm Zircon Blocks Specifications
Part No. Block Type Sheave Ø Length Weight Optimal line Ø Maximum Working Load Breaking Load
2195 57 mm Single 2 1/4 in 57mm 3 1/8 in 79mm 1.58 oz 44.8g 8mm 330 lb 150kg 990 lb 450 kg
2191 40 mm Single w/becket 2 1/4 in 57mm 3 3/4 in 95mm 1.81 oz 51.4g 8mm 3330 lb 150kg 990 lb 450 kg
2192 40 mm Double 2 1/4 in 57mm 3 1/8 in 79mm 3.05 oz 86.4g 8mm 660 lb 300kg 1980 lb 900 kg
2193 40 mm Double w/becket 2 1/4 in 57mm 3 3/4 in 95mm 3.27 oz 92.7g 8mm 660 lb 300kg 1980 lb 900 kg

  • Block Size - 57 mm