
Blocks
Sailing blocks are essential components for optimizing sailboat performance, providing smooth and efficient control over the sails. These marine blocks are available in various sizes and types, including single, double, and triple blocks, designed to handle different line loads and configurations. Constructed from durable materials like stainless steel, nylon, and carbon fiber, sailing blocks are built to withstand harsh marine environments, ensuring long-lasting reliability. Key features to consider include block sheaves, load ratings, and ball bearings for minimal friction and maximum efficiency. Whether you need traveler blocks, deck blocks, or sail handling blocks, the right selection ensures smoother sail trims and quicker adjustments. Leading brands like Harken, Lewmar, and Antal offer high-quality sailing blocks that are easy to install and maintain. Choosing the right block and tackle system for your sailboat enhances maneuverability, improves performance, and provides better control while sailing, making them a must-have for any sailing enthusiast or racer.
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Schaefer Series 5 Flat Base/Alum Cheek/Delrin Sheave
Schaefer Marine
MSRP: $101.90$78.38Series 5 Flat Base/Alum Cheek/Delrin SheaveDelrin™ sheave ensures smooth operation and high safe working load. Stainless steel base distributes loads to a large surface area. Specifications:Sheave Diameter 2" (51 mm)Max. Line 7/16" (11...MSRP: $101.90$78.38 -
Schaefer Stand-Up Swivel w/Aluminum Cheeks
Schaefer Marine
MSRP: $212.90$163.76Stand-Up Swivel with Aluminum CheeksDelrin™ sheave ensures smooth operation and high safe working load. Specifications:Sheave Dia. 2" (51 mm)Max Line 7/16" (11 mm)Diameter includes urethane base 2-7/8" (73 mm)Height 4-1/32" (103 mm)H2 2-3/32"...MSRP: $212.90$163.76 -
Schaefer Clamp-On Furling Line Stanchion Lead Block - 1" Ball Bearing
Schaefer Marine
MSRP: $83.95$64.57Clamp-On Furling Line Stanchion Lead Block - 1" Ball BearingDelrin™ ball bearing sheave allows for quick and easy furling line adjustment. Stainless steel cage and strap ensure durability. Specifications:Stanchions 1" (25mm) in diameter1-7/16"...MSRP: $83.95$64.57 -
Schaefer Series 3 Flat Base/Alum Cheek/Delrin Sheave
Schaefer Marine
MSRP: $82.75$63.66Series 3 Flat Base/Alum Cheek/Delrin SheaveDelrin™ plain bearing sheave ensures smooth operation and high safe working load. Stainless Steel base distributes loads to a larger surface area.Specifications:Sheave Dia. 1-7/16" (37 mm)Max Line 7/16"...MSRP: $82.75$63.66 -
Schaefer Pulpit Furling Lead Spring Loaded Block - 1" Ball Bearing
Schaefer Marine
MSRP: $168.70$129.77Pulpit Furling Lead Spring Loaded Block - 1" Ball BearingThe Stainless Steel spring guarantees maximum support for the block. Delrin™ ball bearing sheave ensures low-friction lead for your furling line. Specifications:1" (25mm)...MSRP: $168.70$129.77 -
Out of Stock
Schaefer Series 7 Flat Base/Aluminum Cheek/Delrin Sheave
Schaefer Marine
MSRP: $146.55$112.74Series 7 Flat Base/Aluminum Cheek/Delrin SheaveDelrin™ sheave ensures smooth operation and high safe working load. Stainless steel base distributes loads to a large surface area. Specifications:Sheave Dia. 2-3/8" (60 mm)Max. Line 1/2" (13...MSRP: $146.55$112.74 -
Schaefer Single Aluminum Block - 60mm Sheave
Schaefer Marine
MSRP: $129.40$99.54Single Aluminum Block - 60mm SheaveDelrin™ sheave ensures smooth operation and a high safe working load. Swivel head may be locked in place to eliminate twisting. Specifications:Sheave Diameter 2 3/8" (60mm)Thickness 1 3/32" (28mm)Width 2 1/2"...MSRP: $129.40$99.54 -
Schaefer Single Ball Bearing Block
Schaefer Marine
MSRP: $118.75$91.36Single Ball Bearing BlockSingle block with aluminum cheeks and ball bearing sheave. Delrin™ ball bearing sheave ensures low-friction operation. Swivel head may be locked in place to avoid twist. Specifications:Sheave Diameter 2"...MSRP: $118.75$91.36 -
Schaefer Series 5 Flat Base Cheek Block - Stainless Steel Cheeks
Schaefer Marine
MSRP: $115.05$88.51Series 5 Flat Base Cheek Block - Stainless Steel CheeksSeries 5 Cheek Block with Stainless Steel cheek. Delrin™ sheave ensures smooth operation and high safe working load. Stainless steel base distributes loads to a large surface area...MSRP: $115.05$88.51 -
Schaefer Single Stainless Steel Block - 60mm Sheave
Schaefer Marine
MSRP: $168.70$129.77Single Stainless Steel Block - 60mm SheaveDelrin™ sheave ensures low-friction and high safe working load. Swivel head may be locked in place to eliminate line twist. Specifications:Sheave Dia. 2 3/8" (60mm)Thickness 1 3/32" (28mm)Width 2 1/2"...MSRP: $168.70$129.77 -
Harken Midrange Single Block
Harken
MSRP: $159.75$140.95Midrange Single BlockMidrange blocks’ robust construction makes them ideal to handle the high loads found on medium and large offshore boats. Sheave runs exclusively on a ball bearing system for fast trim and release under any load...MSRP: $159.75$140.95 -
Harken 22mm Triple Micro Block
Harken
MSRP: $59.90$52.9522mm Triple Micro BlockLow-friction Micro blocks are compact and lightweight. They are ideal for sailboards, smaller dinghies, and lightly loaded control lines on boats of all sizes.Specifications:Sheave: 22mm / 7/8in.Length: 51mm / 2in.Weight: 57g / 2oz...MSRP: $59.90$52.95