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Black Magic AirBlocks

Online Catalogue | Lifting Gear, Ropes, Pulleys, Shackles & Nicopress | Pulleys | Yacht Blocks & Sheaves | Harken Pulleys |  Black Magic AirBlocks

Black Magic AirBlocks

Strong, lightweight, and low friction, these versatile blocks are the workhorses of the Harken® line. Their caged roller bearing design reduces friction by keeping each bearing isolated and allowing dirt to fall between the bearings making for a freer running pulley. They are also fully serviceable, with few component parts and no loose balls or rollers to misplace. Unlike blocks that are riveted together, three Allen head fasteners allow quick disassembly for service.

All Harken pulleys can be proof tested and marked with safe working loads and serial numbers on request.



Harken 57mm Single Black Magic AirBlockHarken 57mm Single Black Magic AirBlock (HAR1950)

These strong, lightweight blocks are sculpted aluminum, with Torlon® rollers and carbon-black balls for strength and UV protection. Rollers are housed in a unique center cage and are isolated for less friction. Blocks feature a three-way head system

Description Single swivel lo-load
Sheave dia. (mm) 57
Length (mm) 119
Weight w/shackle (g) 142
Shackle pin dia. (mm) 6
Max. line dia. - optimal (mm) 10
Max. line dia. - max. (mm) 12
Max. working load (kg) 750
Breaking load (kg) 1500

Price: £114.18 (£137.02 Including VAT at 20%)


Quantity:  

Harken 75mm Single Black Magic AirBlockHarken 75mm Single Black Magic AirBlock (HAR1969)

75 mm Black Magic® AirBlocks® feature Torlon® roller bearings for strength and reduced wear. The unique center cage separates rollers for less friction. Sideload ball bearings are protected by sculpted aluminum sideplates. Dissimilar metals are isolated to minimize corrosion. Low-load blocks use Delrin® rollers and type 316 stainless steel shackles.

Like all AirBlocks®, the three-way head swivels/locks in front/side positions. Blocks are easily disassembled with a single Allen wrench.

Description Single swivel
Sheave dia. (mm) 75
Length (mm) 129
Weight w/shackle (g) 325
Shackle pin dia. (mm) 8
Max. line dia. - optimal (mm) 12
Max. line dia. - max. (mm) 14
Max. working load (kg) 2268
Breaking load (kg) 4536

Price: £296.50 (£355.80 Including VAT at 20%)


Quantity:  

Harken 100mm Single Black Magic AirBlockHarken 100mm Single Black Magic AirBlock (HAR3007)

100 mm Black Magic® AirBlocks® are used on offshore boats where weight and performance are critical. They feature free-rolling, large-diameter aluminum sheaves with Torlon® roller bearings housed in a unique center cage. UV-resistant, carbon-black Delrin® balls carry sideloads. Corrosion is minimized by isolating dissimilar metals.

Blocks are Hardkote-anodized and have 17-4 PH stainless headposts and shackles. Easily disassembled.

Description Single swivel
Sheave dia. (mm) 100
Length (mm) 203
Weight w/shackle (g) 570
Shackle pin dia. (mm) 10
Max. line dia. - max. (mm) 16
Max. working load (kg) 3402
Breaking load (kg) 6804

Price: £398.17 (£477.80 Including VAT at 20%)


Quantity:  

Online Catalogue | Lifting Gear, Ropes, Pulleys, Shackles & Nicopress | Pulleys | Yacht Blocks & Sheaves | Harken Pulleys |  Black Magic AirBlocks