Blocks - Double

Harken 80mm Aluminium Element Double Footblock Element blocks introduce sideplates that combine forged aluminum and compound curves for strength. They are simultaneously contemporary and very robust. Element’s design pairs the minimum amount of...

Harken 45mm Aluminium Element Double Block - Swivel, Becket Element blocks introduce sideplates that combine forged aluminum and compound curves for strength. They are simultaneously contemporary and very robust. Element’s design pairs the minimum...

Harken 80mm Aluminium Element Double Block - Swivel, Becket Element blocks introduce sideplates that combine forged aluminum and compound curves for strength. They are simultaneously contemporary and very robust. Element’s design pairs the minimum...

Harken 80mm Aluminium Element Double Block - Swivel Element blocks introduce sideplates that combine forged aluminum and compound curves for strength. They are simultaneously contemporary and very robust. Element’s design pairs the minimum amount...

Harken 60mm Aluminum Element Double Block - Swivel Element blocks introduce sideplates that combine forged aluminum and compound curves for strength. They are simultaneously contemporary and very robust. Element’s design pairs the minimum amount...

Harken 45mm Aluminium Element Double Block - Swivel Element blocks introduce sideplates that combine forged aluminum and compound curves for strength. They are simultaneously contemporary and very robust. Element’s design pairs the minimum amount...

Harken 29mm Double Block Low-friction Carbo Air blocks are lightweight, strong, reliable—and affordable. Companions to our popular Harken Big Boat blocks, these small, compact blocks have very high working loads for safe, easy trimming Part...

Harken 40mm Double Block - Swivel, Becket Low-friction Carbo Air blocks are lightweight, strong, reliable—and affordable. Companions to our popular Harken Big Boat blocks, these small, compact blocks have very high working loads for safe, easy...

Harken 40mm Double Block Low-friction Carbo Air blocks are lightweight, strong, reliable—and affordable. Companions to our popular Harken Big Boat blocks, these small, compact blocks have very high working loads for safe, easy...

Harken 40mm Double Block - Becket Low-friction Carbo Air blocks are lightweight, strong, reliable—and affordable. Companions to our popular Harken Big Boat blocks, these small, compact blocks have very high working loads for safe, easy...

Harken 75mm Double Block - Swivel, Becket Low-friction Carbo Air blocks are lightweight, strong, reliable—and affordable. Companions to our popular Harken Big Boat blocks, these small, compact blocks have very high working loads for safe, easy...

Harken 29mm Double Upright Lead Bullet Block Low-friction Bullet blocks lead control lines aft. They are compact and lightweight, with fast trim and release under high or low loads. A range of styles lets these blocks adapt to almost all control line...

Harken 57mm Double Block - Swivel, Becket Low-friction Carbo Air blocks are lightweight, strong, reliable—and affordable. Companions to our popular Harken Big Boat blocks, these small, compact blocks have very high working loads for safe, easy...

Harken 40mm Double Block - Swivel Low-friction Carbo Air blocks are lightweight, strong, reliable—and affordable. Companions to our popular Harken Big Boat blocks, these small, compact blocks have very high working loads for safe, easy trimming...

Harken Double Fiddle Block 3" - Swivel Harken® gross-trim/fine-tune mainsheet systems are easy to install and use. These optimized systems decrease overall line clutter because they use less line than traditional gross-trim/fine-tune...

Harken 57mm Aluminium Double Block - Swivel, Becket Black Magic Air blocks are a top favorite of Big Boat performance racers and cruisers. These lightweight, free-running, powerful performers are used for sail controls that see lots of action:...

Harken 57mm Aluminum Double Block - Swivel Black Magic Air blocks are a top favorite of Big Boat performance racers and cruisers. These lightweight, free-running, powerful performers are used for sail controls that see lots of action: mainsheet, runner,...

Harken 57mm Aluminium Low-Load Double Block - Swivel Black Magic Air blocks are a top favorite of Big Boat performance racers and cruisers. These lightweight, free-running, powerful performers are used for sail controls that see lots of action:...

Harken 57mm Aluminium Double Loop Block Part Number Sheave Dia. Weight Max. Line Dia. Max. Working Load Breaking Load HKN-3386 57mm 168g 12mm 1134kg 2268kg

Harken 75mm Double Block - Swivel Low-friction Carbo Air blocks are lightweight, strong, reliable—and affordable. Companions to our popular Harken Big Boat blocks, these small, compact blocks have very high working loads for safe, easy...

Harken Double Block - 2.25" The 2.25 in (57 mm) blocks are compact and lightweight, with fast trim and release under high or low loads. Perfect for dinghies, scows, beachcats and iceboats, as well as small offshore racers and cruisers...

Harken Double Block with Becket, 2.25" The 2.25 in (57 mm) blocks are compact and lightweight, with fast trim and release under high or low loads. Perfect for dinghies, scows, beachcats and iceboats, as well as small offshore racers and cruisers...

Harken 57mm Double Over-The-Top Block Over-the-top blocks lead lines aft over cabin houses, coamings, and splashguards. Part Number Sheave Dia. Length Width Weight Max. Working Load Breaking Load Number of...

Harken Double 38mm Big Bullet Block Low-friction Bullet blocks lead control lines aft. They are compact and lightweight, with fast trim and release under high or low loads. A range of styles lets these blocks adapt to almost all control line...

Harken Double 38mm Big Bullet Block with Becket Low-friction Bullet blocks lead control lines aft. They are compact and lightweight, with fast trim and release under high or low loads. A range of styles lets these blocks adapt to almost all control line...

Harken Dual Sheave In-Line Exit Big Bullet Block Low-friction Bullet blocks lead control lines aft. They are compact and lightweight, with fast trim and release under high or low loads. A range of styles lets these blocks adapt to almost all control...

Harken Double Bullet Block, 29mm Sheave Low-friction Bullet blocks lead control lines aft. They are compact and lightweight, with fast trim and release under high or low loads. A range of styles lets these blocks adapt to almost all control line...

Harken Double Bullet with Becket Low-friction Bullet blocks lead control lines aft. They are compact and lightweight, with fast trim and release under high or low loads. A range of styles lets these blocks adapt to almost all control line applications...

Harken Dual Sheave In-Line Exit Bullet Block Low-friction Bullet blocks lead control lines aft. They are compact and lightweight, with fast trim and release under high or low loads. A range of styles lets these blocks adapt to almost all control line...

Harken Double Bullet for Wire Low-friction Bullet blocks lead control lines aft. They are compact and lightweight, with fast trim and release under high or low loads. A range of styles lets these blocks adapt to almost all control line applications...

SPECIAL ORDER ITEM. ALLOW 6-8 WEEKS FOR DELIVERY. Lewmar Racing Double Block - designed and manufactured utilising monocoque construction techniques to produce a quality block range with a high strength to low weight ratio. Radiused alloy cheeks with...

Double block with becket from Wichard. Part Number Suits Rope Sheave Diameter Height Safe Working Load Breaking Load Weight WCH-70214 4-6mm 18mm 55mm 320kg 700kg 0.044kg

Double block from Wichard. Part Number Suits Rope Sheave Diameter Height Safe Working Load Breaking Load Weight WCH-70213 4-6mm 18mm 55mm 320kg 700kg 0.044kg

A balanced design approach incorporating functionality, performance and style makes the Series 100 Core Blocks™ the right choice for performance cruising or racing applications. A full contact bearing provides excellent performance across the full...

Features: Ultra Lightweight Low friction 2-stage Orbital ball bearing system Highest working load in its class Low profile and compact High performance cleating Swivel shackle head for unlimited block rotation. Stainless steel shackle head and...

Features: Ultra Lightweight Low friction 2-stage Orbital ball bearing system Highest working load in its class Low profile and compact High performance cleating Easily fitted and securely retained Dyneema Link head Single inner cheeks for...

Features: Ultra Lightweight Low friction 2-stage Orbital ball bearing system Highest working load in its class Low profile and compact High performance cleating Swivel shackle head for unlimited block rotation grade 316 stainless steel...

Ronstan Ball Bearing Orbit Blocks - Series 30 - Triple. Lightweight Highest working load in its class Secure, versatile attachment Low profile and compact Ultra low profile thru-sheave becket Low friction 2-stage ball bearing system provides...

Sheaves running on Acetal or Torlon® ball bearings provide high performance & low friction. The 2-stage ball bearing system provides consistent performance over the full load range. Features a swivel shackle head for full 360° rotation...

Sheaves running on Acetal or Torlon® ball bearings provide high performance & low friction. The 2-stage ball bearing system provides consistent performance over the full load range. Features: Low friction Acetal or Torlon® bearing...

Stainless steel cheeks and Acetal sheaves ensure a long service life with virtually no maintenance Features: Lightweight durable construction Economical Maintenance free Applications: Vang, cunningham and trapeze retriever systems on...

Stainless steel cheeks and Acetal sheaves ensure a long service life with virtually no maintenance Features: Lightweight durable construction Economical Maintenance free Applications: Vang, cunningham and trapeze retriever systems on...

Stainless steel cheeks and Acetal sheaves ensure a long service life with virtually no maintenance. Hollow rivets accept fixing screws, shackles or can be used as a becket for extra purchase.. Features: Lightweight durable...

Precision moulded Acetal sheaves running on Acetal ball bearings provide high performance & low friction. The 2-stage ball bearing system provides consistent performance over the full load range. Application: Exit blocks minimise friction in...

Core Blocks™ are a true all round solution. A tuned 2-stage bearing system provides excellent performance across the full working load range with an integrated thrust bearing feature and the resilience to handle high dynamic or static loads...

Core Blocks™ are a true all round solution. A tuned 2-stage bearing system provides excellent performance across the full working load range with an integrated thrust bearing feature and the resilience to handle high dynamic or static loads...

Core Blocks™ are a true all round solution. A tuned 2-stage bearing system provides excellent performance across the full working load range with an integrated thrust bearing feature and the resilience to handle high dynamic or static loads...

Core Blocks™ are a true all round solution. A tuned 2-stage bearing system provides excellent performance across the full working load range with an integrated thrust bearing feature and the resilience to handle high dynamic or static loads...

Lightweight Highest working load in its class Secure, versatile attachment Low profile and compact Ultra low profile thru-sheave becket Low friction 2-stage ball bearing system provides consistent performance over the full working load range. SP...

Lightweight Highest working load in its class Secure, versatile attachment Low profile and compact Ultra low profile thru-sheave becket Low friction 2-stage ball bearing system provides consistent performance over the full working load range. SP...

Lightweight Highest working load in its class Secure, versatile attachment Low profile and compact Ultra low profile thru-sheave becket Low friction 2-stage ball bearing system provides consistent performance over the full working load range. SP...

304 grade stainless steel cheek block with double, brass bushed nylon sheaves. Swivelling bale head. Heavy construction for commercial applications. Part NumberSheave DiameterMaximum Rope DiameterLength (A)Width (B)Sheave Width (C)Swivel Diameter...

Heavy duty, 304 grade stainless steel trawl blocks with double, brass bushed stainless sheaves and swivelling bale head. Pressed cheeks. Heavy duty cast load straps. Through bolted construction allows the block to be dismantled for installation and...

Low-friction Carbo Air blocks are lightweight, strong, reliable and affordable. Companions to the popular Harken Black Magic block line, these small, compact blocks have very high working loads for safe, easy trimming. Note: DO NOT use Harken...

Ronstan's Ball Bearing Orbit Block is a lightweight, high performance range of blocks featuring the proven Ronstan 2-stage bearing system. Applications: Mainsheet systems and spinnaker sheets on dinghies to 5m (16ft) Halyard, vang and backstay...

The Carbo Ratchamatic is a load-sensing ratchet block that rolls freely in both directions under low loads and automatically engages the ratchet as loads increase. Shifting between ratchet and light-air modes is seamless. Use the 2634 with a 402 or 403...

T2 blocks come in single and double configurations and can be tied, spliced, or lashed to almost anything. T2 doubles feature composite line guides that are integrated into the block head. They prevent the block from capsizing by pushing the lashing line...

T2 blocks come in single and double configurations and can be tied, spliced, or lashed to almost anything. T2 doubles feature composite line guides that are integrated into the block head. They prevent the block from capsizing by pushing the lashing line...

T2 blocks come in single and double configurations and can be tied, spliced, or lashed to almost anything. T2 doubles feature composite line guides that are integrated into the block head. They prevent the block from capsizing by pushing the lashing line...

T2 blocks come in single and double configurations and can be tied, spliced, or lashed to almost anything. T2 doubles feature composite line guides that are integrated into the block head. They prevent the block from capsizing by pushing the lashing line...