57mm Aluminum Low Load Black Magic Block with 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, halyard, and spinnaker systems. A center cage keeps Torlon® roller bearings separated and parallel to reduce friction. Shackle blocks lock in two directions or swivel to keep the line from twisting. Low-load blocks have red isolators. They use Torlon® rollers and 316 stainless steel shackles. Standard blocks have 17-4 PH stainless head posts. Torlon is a registered trademark of Solvay Advanced Polymers L.L.C.
Specifications:
- Sheave: 57mm/2-1/4in
- Length: 119mm/4-11/16in
- Weight: 154g/5.44oz
- Shackle Pin: 6mm/1/4in
- Maximum Line: 12mm / 7/16in
- Maximum Working Load: 7/16kg / 1655lbs
- Breaking Load: 1500kg / 3300lb
| Weight | 0.35 g |
|---|---|
| Dimensions | 7 × 3 × 1 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
Series 20 Ball Bearing Block – Single – Loop Top Features:Low frictionHigh static and dynamic load capacityLightweightPrecision molded Acetal sheaves running on stainless steel or Torlon® ball bearings provide high performance & low frictionCan be fitted with a shackle in either of two planes to allow correct alignment of the block Applications:Dinghy control linesDinghy VangsCunninghamsTraveller [...]
Sailing > Blocks
Ronstan Wire Block – Ferrule Top w/Removable Nylontron® Sheave – 45mm (1-34/”) Sheave Diameter
Wire Block – Ferrule Top w/Removable Nylatron® Sheave – 45mm(1-3/4″) Sheave Diamter Wire blocks have purpose designed narrow sheaves and grooves.Removal sheave for easy fitting and without cutting the wire termination Features:Flared cheeks to minimise chafingRemovable sheaves Applications:Wire blocks suit halyards, vang and backstay applications Materials:Grade 316 stainless steel cheeksNylatron® sheave Specifications:Sheave Ø: 45mm(1-3/4″)Max. Cable [...]
Sailing > Blocks
Series 30 Fiddle Block – Narrow with Tube Rivet Head Features: Lightweight durable construction Economical Maintenance free Hollow rivets accept fixing screws, shackles or can be used as a becket for extra purchase Stainless steel cheeks and Acetal sheaves ensure a long service life with virtually no maintenance Applications: Vang, cunningham and trapeze retriever systems [...]
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
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
Series 25 T-Track – Composite Slide – Series 40 BB Orbit Block&# 153; – Stand Up – Suits 9mm(5/16″) Rope For small keel boats and sportsboats T-track jib leads are a great blend of performance and functionality in a simple, efficient package. Composite slide bodies with plunger stops run on anodised aluminium track, and allow [...]
Series 40 AP Sheave – Acetal Solid Bearing – 40mm(1-9/16″)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
Series 20 Ball Bearing Block – Triple – Becket – 2-Axis Shackle Head Features:Low frictionHigh static and dynamic load capacityLightweightPrecision molded Acetal sheaves running on stainless steel or Torlon® ball bearings provide high performance & low frictionTwo-Way head can be fixed at 0° or 90° Applications:Dinghy control linesDinghy vangsCunninghamsTraveller controls Materials:Stainless steel ball bearingsUV Stabilized [...]