57mm Quad Block Swivel, Center 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 trimming.
Features:
- Sheave Ø (mm) 57 mm
- Sheave Ø (in) 2 1/4 in
- Maximum line Ø (mm) 10 mm
- Maximum line Ø (in) 7/16 in
- Maximum working load (kg) 1080 kg
- Maximum working load (lb) 2380 lb
| Weight | 0.75 g |
|---|---|
| Dimensions | 5 × 4 × 3 cm |
Brand
Harken
No accessories available for this product.
No literature available for this product.
No videos available for this product.
Related products
Sailing > Blocks
Kite Block – Black w/White Sheave Features:Lightweight durable constructionEconomicalMaintenance free Applications:Vang, cunningham and trapeze retriever systems on dinghiesLeech line tackles, bunk adjusters etc on larger yachts Materials:U.V. stabilized Acetal sheavesNylon cheeks Specifications:Sheave Ø:16mm(5/8″)Max. Rope Ø:4mm(5/32″)
Sailing > Blocks
Ronstan Race Sheave – Acetal Solid Bearing – 28mm (1-1/8″) OD
Race Sheave – Acetal Ball Bearing – 28mm(1-1/8″) OD Precision moulded Acetal sheaves running on Acetal or Torlon® ball bearings provide high performance & low friction. Acetal Sheaves:Choice of bearingsSolid bearing – high strength and durability, utilizing the self-lubricating properties of AcetalU.V. resistant Acetal sheaves
Sailing > Blocks
Series 20 Ball Bearing Block – Swivel Hook Head Features:Low frictionHigh static and dynamic load capacityLightweightLow profile swivelling hook for quick and easy attachmentHook suits rope, stainless steel and webbing fixing pointsPrecision molded Acetal sheaves running on stainless steel or Torlon® ball bearings provide high performance & low friction Applications:Dinghy control linesDinghy vangsCunninghamsTraveller controls Materials:Stainless [...]
Sailing > Blocks
Ronstan Series 20 Ball Bearing Block – Single – Exit Cover Plate
Series 20 Ball Bearing Block – Single – Exit Cover Plate Features:Precision molded Acetal sheaves running on stainless steel or Torlon® ball bearings provide high performance & low friction Applications:Exit blocks minimise friction in lines passing through the deck or exiting masts and booms Materials:UV Stabilized Acetal sheaveGrade 316 stainless steel load strap and head [...]
Sailing > Blocks
Ronstan Race Sheave – Acetal Solid Bearing – 66mm (2-5/8″) OD
Race Sheave – Acetal Ball Bearing – 66mm(2-5/8″) OD Precision moulded Acetal sheaves running on Acetal or Torlon® ball bearings provide high performance & low friction. Acetal Sheaves:Choice of bearingsSolid bearing – high strength and durability, utilizing the self-lubricating properties of AcetalU.V. resistant Acetal sheaves
Series 30 Ball Bearing Orbit Block™ – Single – Becket – Lashing Head Ball Bearing Orbit Blocks™ boast the highest strength-to-weight ratio available. This is achieved through all-composite reinforced polymer materials and multiple attachment options. Their precision design provides the optimum number of ball bearings for minimum friction while weight reduction is achieved through the [...]
Sailing > Blocks
Ronstan Series 30 Ball Bearing Orbit Block™ – Stand Up Swivel
Series 30 Ball Bearing Orbit Block™ – Stand Up Swivel Ball Bearing Orbit Blocks™ boast the highest strength-to-weight ratio available. This is achieved through all-composite reinforced polymer materials and multiple attachment options. Their precision design provides the optimum number of ball bearings for minimum friction while weight reduction is achieved through the use of fiber-reinforced [...]
Sailing > Blocks
Ronstan Race Sheave – Acetal Solid Bearing – 50mm (1-15/16″) OD
Race Sheave – Acetal Ball Bearing – 50mm(1-15/16″) OD Precision moulded Acetal sheaves running on Acetal or Torlon® ball bearings provide high performance & low friction. Acetal Sheaves:Choice of bearingsSolid bearing – high strength and durability, utilizing the self-lubricating properties of AcetalU.V. resistant Acetal sheaves