Schaefer 3 Series Block
Best high-load rigging solution for serious sailors managing complex line systems.
This triple-sheave block is built for sailors who prioritize smooth, frictionless line management over everything else. The stainless steel construction offers rock-solid durability, though the heavy-duty design means you’re trading a bit of weight for the peace of mind that comes with high-load reliability.
$197.50
at
Sound Boatworks (ShopSoundBoatworks)
Who it's for
- Sailors needing extra power for high-load line tensioning
- Cruisers seeking long-term reliability in harsh saltwater conditions
- Riggers wanting a secure, low-profile connection for mast fittings
Who should skip it
- Budget-conscious sailors looking for entry-level hardware
- Racers prioritizing minimal weight and compact rigging setups
- Boaters preferring low-maintenance gear over high-performance systems
Performance breakdown
Load Capacity
Engineered to handle significant tension without compromising structural integrity.
Friction Reduction
Delrin ball bearings ensure smooth, effortless line movement under load.
Corrosion Resistance
Stainless steel construction stands up to harsh, salt-heavy marine environments.
Build Durability
Rugged cage design provides long-term reliability for demanding sailing conditions.
Line Management
Triple sheave setup keeps complex rigging organized and tangle-free.
Installation Ease
Standard mounting footprint makes retrofitting onto existing decks straightforward.
Key Specs
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1 7/16 in. (36 mm)
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7/16 in. (11 mm)
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2 11/32 in. (60 mm)
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3 3/8 in. (86 mm)
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2 11/32 in. (60 mm)
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1 13/32 in. (36 mm)
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1 25/32 in. (45 mm)
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(6) #10 (5 mm) RH
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650 lbs. (295 kg.)
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10 oz. (328 g)
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