Harken 3237 75mm Double Black Magic High-Load Lockout Footblock
HARKEN 3237
Double Black Magic® Lockoff Footblock AirBlock® - 75mm NEW!
The entire line 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 high-load Torlon® roller bearings for a high strength-to-weight ratio and reduced wear. Rollers are housed in a center cage and stay parallel for low-friction efficiency. Sculpted hardcoat-anodized aluminum side plates protect sideload ball bearings. Dissimilar metals are isolated to minimize corrosion. Like all Black Magic® AirBlocks®, the three-way head swivels/locks in front/side positions. Blocks are easily disassembled with a single hex wrench.
Use for:
Specifications:
Double Black Magic® Lockoff Footblock AirBlock® - 75mm NEW!
The entire line 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 high-load Torlon® roller bearings for a high strength-to-weight ratio and reduced wear. Rollers are housed in a center cage and stay parallel for low-friction efficiency. Sculpted hardcoat-anodized aluminum side plates protect sideload ball bearings. Dissimilar metals are isolated to minimize corrosion. Like all Black Magic® AirBlocks®, the three-way head swivels/locks in front/side positions. Blocks are easily disassembled with a single hex wrench.
Use for:
- Sheets
- Halyards
- Running backstays
- Control lines
Specifications:
- Sheave Diameter - 75mm (2-15/16")
- Max Line Diameter - 9/16" (14mm)
| Mfg No. | Description | Length | Number of Fasteners | Max Working Load |
Breaking Load |
Weight |
| 3237 | Double Footblock w/ lockoff | 4-3/8" (111mm) |
4 | 3,465 Lbs (1572kg) |
6,930 Lbs (3143kg) |
20.24 oz. (574g) |
Harken 3237 75mm Double Black Magic High-Load Lockout Footblock
Sale price$899.95
Regular price$1,022.05
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Harken 3237 75mm Double Black Magic High-Load Lockout Footblock
Sale price$899.95
Regular price$1,022.05