ID
1299073
$ 2,338
1-2 weeks delivery time
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The Harken 3248 100mm Black Magic 2-Sheave Aluminum Block Swivel delivers exceptional load capacity for advanced deck systems. Dual sheaves and Torlon® roller bearings within a center cage ensure low-friction line handling, while the shackle can swivel or lock for stability. It’s designed for mainsheet, halyard, and spinnaker control under maximum tension.
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Harken 3248 - 100mm Black Magic 2-Sheave Aluminum Block Swivel
The 2-sheave swivel block provides exceptional strength for demanding deck applications. Its Torlon®-equipped center cage ensures minimal friction, while the dual sheaves handle high-load lines. The shackle allows locking or full swivel to prevent twisting, making it ideal for mainsheet, halyard, and spinnaker systems. Torlon is a registered trademark of Solvay Advanced Polymers L.L.C.
- Sheave Ø: 100 mm / 3 15/16 in
- Length: 227 mm / 8 15/16 in
- Weight: 1284 g / 45.28 oz
- Shackle pin Ø: 12 mm / 1/2 in
- Maximum line Ø: 16 mm / 5/8 in
- Maximum working load: 4990 kg / 11000 lb
- Breaking load: 9979 kg / 22000 lb
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