Schaefer 10-05-UC Single Block
Best low-friction rigging block for sailors needing reliable, smooth line control.
This block is built for sailors who prioritize reliability and smooth operation over everything else. The combination of stainless steel construction and low-friction ball bearings makes it a workhorse for rigging, while the lockable swivel head offers a clever solution to the constant annoyance of twisted lines.
$743.35
at
Sound Boatworks (ShopSoundBoatworks)
Who it's for
- Saltwater sailors needing gear that resists rust and decay
- Performance racers requiring smooth, effortless line adjustments
- Serious cruisers demanding reliable hardware for heavy loads
Who should skip it
- Budget-conscious sailors looking for affordable rigging solutions
- Ultra-light racing sailors prioritizing minimal weight on deck
- Owners with aluminum fittings concerned about metal compatibility
Performance breakdown
Friction reduction
Delrin ball bearings ensure smooth, efficient line movement under load.
Corrosion resistance
Stainless steel cheeks provide exceptional durability in harsh marine environments.
Maintenance accessibility
Bolted construction allows for quick, straightforward servicing on the deck.
Rigging versatility
Lockable swivel head prevents line twist across various block configurations.
Structural integrity
Robust materials and design handle high-tension rigging demands with ease.
Sheave performance
Aluminum universal circuit design optimizes line handling for consistent performance.
Key Specs
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3 1/4 in. (83 mm)
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13/16 in. (21 mm)
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3/8 in. (10 mm)
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1 7/32 in. (31 mm)
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3 1/4 in. (83 mm)
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6 19/32 in. (167 mm)
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3750 lbs. (1750 kg)
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1 lbs. 11 oz. (765 g)
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5/8 in. (16 mm)
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1/4 in. (6 mm)
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