Blocks

Blocks

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.

  • Harken 29mm Double Bullet Block
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    Harken 29mm Double Bullet Block

    Harken

    MSRP: $61.35
    $53.95
    29mm Double Bullet BlockLow-friction Bullet blocks lead control lines aft. They are compact and lightweight, with fast trim and release under high or low loads. A range of styles lets these blocks adapt to almost all control line applications...
    MSRP: $61.35
    $53.95
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  • Harken 38mm Double Big Bullet Block w/Becket
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    Harken 38mm Double Big Bullet Block w/Becket

    Harken

    MSRP: $108.00
    $94.95
    38mm Double Big Bullet Block with BecketLow-friction Bullet blocks lead control lines aft. They are compact and lightweight, with fast trim and release under high or low loads. A range of styles lets these blocks adapt to almost all control line...
    MSRP: $108.00
    $94.95
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  • Schaefer Series 5 Flat Base/Alum Cheek/Delrin Sheave
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    Schaefer Series 5 Flat Base/Alum Cheek/Delrin Sheave

    Schaefer Marine

    MSRP: $101.90
    $78.38
    Series 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
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  • Schaefer Spring Loaded/Lined Slide/Aluminum f/1" T-Track
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    Schaefer Spring Loaded/Lined Slide/Aluminum f/1" T-Track

    Schaefer Marine

    MSRP: $246.75
    $189.82
    Spring Loaded/Lined Slide/Aluminum for 1" T-TrackDelrin™ sheave ensures smooth operation and high safe working load. Anodized aluminum cheeks and stainless steel slider ensure reliability. Polyethylene liner and pin stop allow for easy adjustment...
    MSRP: $246.75
    $189.82
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  • Schaefer Stand-Up Swivel w/Aluminum Cheeks
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    Schaefer Stand-Up Swivel w/Aluminum Cheeks

    Schaefer Marine

    MSRP: $212.90
    $163.76
    Stand-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
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  • Schaefer Series 3 Flat Base/Alum Cheek/Delrin Sheave
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    Schaefer Series 3 Flat Base/Alum Cheek/Delrin Sheave

    Schaefer Marine

    MSRP: $82.75
    $63.66
    Series 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
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  • Schaefer Twin Sheet Block f/1-1/4" T-Track - Black
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    Schaefer Twin Sheet Block f/1-1/4" T-Track - Black

    Schaefer Marine

    MSRP: $474.80
    $365.23
    Twin Sheet Block for 1-1/4" T-Track - BlackHardcoat anodized aluminum body and slider provide a high strength block. Aluminum sheave runs on nomex™/Teflon™ bearing for a low-friction, high strength sheave. Articulating sheave allows for a...
    MSRP: $474.80
    $365.23
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  • Schaefer Series 7 Flat Base/Aluminum Cheek/Delrin Sheave
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    Schaefer Series 7 Flat Base/Aluminum Cheek/Delrin Sheave

    Schaefer Marine

    MSRP: $146.55
    $112.74
    Series 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
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  • Schaefer Single Aluminum Block - 60mm Sheave
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    Schaefer Single Aluminum Block - 60mm Sheave

    Schaefer Marine

    MSRP: $129.40
    $99.54
    Single 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
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  • Schaefer Stand-Up Swivel - Aluminum Block
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    Schaefer Stand-Up Swivel - Aluminum Block

    Schaefer Marine

    MSRP: $256.25
    $197.12
    Stand-Up Swivel - Aluminum BlockSpecifications:Sheave Dia. 2-2/8" (60 mm)Max Line 1/2" (13 mm)Diameter includes urethane base 3-3/8" (86 mm)Height 4-25/32" (120 mm)H2 2-15/32" (63 mm)Fastener Size (4),1/4" RH (6 mm)C/C 1-11/16" (43 mm)SWL 2250 lbs (1020...
    MSRP: $256.25
    $197.12
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