57 mm Black Magic Airblocks
57 mm Black Magic Airblocks
57 mm Black Magic Airblocks
57 mm Black Magic Airblocks
57 mm Black Magic Airblocks
57 mm Black Magic Airblocks
57 mm Black Magic Airblocks
57 mm Black Magic Airblocks
57 mm Black Magic Airblocks
57 mm Black Magic Airblocks
57 mm Black Magic Airblocks
57 mm Black Magic Airblocks
57 mm Black Magic Airblocks
57 mm Black Magic Airblocks

57 mm Black Magic Airblocks

2-1/4" Sheave Takes 7/16" (12mm) Line
By: Harken

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The workhorse of the Harken line, the entire range of Black Magic® AirBlocks® has been redesigned with a sleek new look.
Their unique, performance-packed engineering remains exactly the same.
Used on offshore boats, these strong, lightweight blocks feature aluminum cheeks, and free-rolling, high-load Torlon® roller bearings for a high strength-to weight ratio.
Use them for sail controls that see lots of action — mainsheet, runner, halyard and spinnaker systems.

Easy Maintenance —
AirBlocks are easy to clean and service.
They have few parts and no loose balls or rollers to misplace.
Unlike blocks that are riveted, fasteners allow quick disassembly with a single hex wrench.

Low Friction Caged Bearings —
Roller bearings are housed in a unique center cage that keeps them separated and parallel for lower friction.
Dirt and sand falls out between the rollers.
Captive Delrin® ball bearings carry any sideloads.

Strong, lightweight sideplates and sheaves —
6061-T6 aluminum sideplates are sculpted to remove excess weight.
Thin-profile, deep groove aluminum sheaves have radiused edges to protect high-tech lines.

Long-lasting protective finish —
Sheaves and sideplates are deep-saturation Hard Lube-anodized for strength and durability.
UV stabilized, and PTFE-impregnated for maximum protection and a smooth, slippery surface.

• 30% lighter, 60% higher working load than equivalent sized ball bearing blocks
• High- and low-load versions
• Breaking load is 2 times safe working load
• Sheave diameter: 2-1/4" (57mm)
• Dissimilar metals isolated to prevent corrosion - plastic isolators under all fastener heads and headposts
• Three-way head - set screw locks shackle in front or side positions, or lets block swivel to keep line from twisting
Click on See detailed table of all productsto see specifications of product options.
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Sku#Item IDHarken#AvailabilityDescriptionUOMYour PriceQTY
395029HAR 3214 3214Loading...HAR 3214 57mm Loop BlockLoading...
395030HAR 3215 3215Loading...HAR 3215 57MM HL BLOCKLoading...
395031HAR 3216 3216Loading...HAR 3216 57MM HL BLOCK W/BECKETLoading...
395032HAR 3217 3217Loading...HAR 3217 57MM HL DOUBLE BLOCKLoading...
395033HAR 3218 3218Loading...HAR 3218 57MM HL DOUBLE BLOCK W/ BECKETLoading...
395034HAR 3219 3219Loading...HAR 3219 57MM TRIPLE BLOCKLoading...
395035HAR 3220 3220Loading...HAR 3220 57MM HL FOOTBLOCKLoading...
395036HAR 3221 3221Loading...HAR 3221 57MM HL FOOTBLOCK W/ LOCKOFFLoading...
395037HAR 3222 3222Loading...HAR 3222 57MM HL DOUBLE FOOTBLOCKLoading...
395038HAR 3223 3223Loading...HAR 3223 57MM HL PADEYE TEARDROP BLOCKLoading...
395039HAR 3224 3224Loading...HAR 3224 57MM HL RUNNER BLOCKLoading...
395040HAR 3225 3225Loading...HAR 3225 57MM CTRL 2 SHEAVE BLOCKLoading...
395041HAR 3226 3226Loading...HAR 3226 57MM LOW LOAD BLOCKLoading...
395042HAR 3227 3227Loading...HAR 3227 57MM HL STANDUP BLOCKLoading...
395043HAR 3228 3228Loading...HAR 3228 57MM LOW LOAD DOUBLE BLOCKLoading...
395044HAR 3229 3229Loading...HAR 3229 57MM LOW LOAD BLOCK W/ BECKETLoading...
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