Carbo AirBlocks® are 60% stronger and 30% lighter than our classic blocks. Use the 40 mm Carbo for jib and mainsheet systems on high-performance dinghies and for loaded control lines on small keelboats.
The nylon-resin sideplates are densely packed with long-glass fibers for a compact block with a high strength-to-weight ratio. Sheaves spin on high-load ball bearings with fitted races for low-friction operation. Ball bearings, sheave and sideplates UV stabilized with black additive for maximum protection.
Use for: - Main/jib sheets - Mainsheet fine-tune - Control lines - Vangs - Cunninghams - Outhauls
Dimensions: Sheave diameter: 1-9/16 in (40 mm) Length: 5-1/8 in Weight w/shackle: 4.5 oz Max. line diameter: 1/4 in Shackle pin diameter: 5/32 in Safe Working Load: 485 lbs Breaking strength: 1620 lbs
While we carry a ton of Harken hardware, some items are special order only. Call or email for details.