Sailing - Blocks
Improve sailing control and performance with premium sailing blocks designed to provide smooth operation, reliable handling, and dependable support for your rigging system. Essential for sailboats, cruising vessels, and racing applications, quality blocks help manage lines efficiently while reducing friction and improving overall sailing performance. Our Sailing Blocks collection features pulley blocks, single blocks, double blocks, triple blocks, swivel blocks, deck blocks, ball bearing blocks, and rigging accessories designed for various sailing applications. Built with durable materials and marine-grade construction, these products are engineered to withstand saltwater exposure, weather conditions, and demanding use on the water. Whether upgrading your rigging setup, replacing worn components, or improving sail handling, reliable sailing blocks provide the strength and efficiency sailors need. Featuring trusted marine brands recognized for quality craftsmanship and performance, our Sailing Blocks collection delivers dependable solutions for recreational sailors, racers, and professionals. Shop today and equip your vessel with high-quality sailing blocks built for smoother and more confident sailing adventures.
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Sort by:
- Featured
- Most relevant
- Best selling
- Alphabetically, A-Z
- Alphabetically, Z-A
- Price, low to high
- Price, high to low
- Date, old to new
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Vendor:Harken
Harken 60mm Single Element Block Mastbase w/Swivel [6220]
- $90.98
$0.00- $90.98
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60mm Single Element Block Mastbase with SwivelElement blocks introduce sideplates that combine forged aluminum and compound curves for strength. They are simultaneously contemporary and very robust. Element’s design pairs the minimum amount of metal required to protect the sheave with a proven journal bearing....- $90.98
$0.00- $90.98
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Vendor:Harken
Harken 40mm Carbo Air Fiddle Block w/Swivel [2655]
- $76.59
$86.43- $76.59
- Unit price
- / per
40mm Carbo Air Fiddle Block with SwivelLow-friction Carbo Air blocks are lightweight, strong, reliable—and affordable. Companions to the popular Harken® Black Magic® line, these small, compact blocks have very high working loads for safe, easy trimming. The 40 mm fiddle is an excellent choice...- $76.59
$86.43- $76.59
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Vendor:Harken
Harken 40mm Carbo Air Block w/Swivel [2636]
- $56.34
$63.14- $56.34
- Unit price
- / per
40mm Carbo Air Block with SwivelLow-friction Carbo Air blocks are lightweight, strong, reliable—and affordable. Companions to the popular Harken Black Magic block line, these small, compact blocks have very high working loads for safe, easy trimming.Specifications: Sheave: 40mm / 1-9/ 16in Length: 86mm /...- $56.34
$63.14- $56.34
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Vendor:Harken
Harken 16mm Block w/Becket [405]
- $30.30
$33.56- $30.30
- Unit price
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16mm Block with BecketThe 16 mm is Harken’s smallest block. It is perfect for small synthetic control lines found on high-tech dinghies. The patented bearing system uses stainless steel balls in a captive grooved race and has a 250 lb (113 kg) maximum working...- $30.30
$33.56- $30.30
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Vendor:Schaefer Marine
Schaefer Stand-Up Swivel w/Aluminum Cheeks [504-62]
- $250.22
$338.76- $250.22
- Unit price
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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" (54 mm) Fastener Size (4), #10 RH...- $250.22
$338.76- $250.22
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Vendor:Schaefer Marine
Schaefer Clamp-On Furling Line Stanchion Lead Block - 1" Ball Bearing [300-34]
- $104.13
$133.58- $104.13
- Unit price
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Clamp-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 diameter 1-7/16" (37mm) Sheave Diameter Maximum 1/2" (12mm) line size Safe Working...- $104.13
$133.58- $104.13
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Vendor:Schaefer Marine
Schaefer Single Ball Bearing Block [506-05]
- $146.08
$188.98- $146.08
- Unit price
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Single 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" (51mm) Thickness 15/16" (24mm) Width 2 1/8" (54mm) Length 4 13/32" (112mm)...- $146.08
$188.98- $146.08
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Vendor:Schaefer Marine
Schaefer Single Aluminum Block - 60mm Sheave [704-05]
- $159.10
$205.90- $159.10
- Unit price
- / per
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" (64mm) Length 5 1/32" (128mm) SWL...- $159.10
$205.90- $159.10
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Vendor:Schaefer Marine
Schaefer Pulpit Furling Lead Spring Loaded Block - 1" Ball Bearing [300-35]
- $206.83
$268.39- $206.83
- Unit price
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Pulpit 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) stanchions Length 4-11/32" (111mm) Width 1-9/16"(40mm) Safe Working Load 1000 lbs (450kg)...- $206.83
$268.39- $206.83
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Vendor:Ronstan
Ronstan Series 30 Utility Block - Cheek, Curved Base [RF285]
- $39.99
$47.05- $39.99
- Unit price
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Series 30 Utility Block- Cheek, Curved BaseFeatures: Lightweight durable construction Economical Maintenance free Product Information:Stainless steel cheeks and Acetal sheaves ensure a long service life with virtually no maintenance.Applications: Vang, cunningham and trapeze retriever systems on dinghies Leech line tackles, bunk adjusters etc on...- $39.99
$47.05- $39.99
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Vendor:Ronstan
Ronstan Series 20 Ball Bearing Block - Single [RF20100]
- $33.47
$39.37- $33.47
- Unit price
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Series 20 Ball Bearing Block - SingleFeatures: Low friction High static and dynamic load capacity Lightweight Precision molded Acetal sheaves running on stainless steel or Torlon® ball bearings provide high performance & low friction Applications: Dinghy control lines Dinghy Vangs Cunninghams Traveller controls Materials:...- $33.47
$39.37- $33.47
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Vendor:Ronstan
Ronstan Series 30 Ball Bearing Orbit Block - Double [RF35202]
- $59.22
$69.66- $59.22
- Unit price
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Series 30 Ball Bearing Orbit Block - DoubleBall Bearing Orbit Blocks boast the highest strength-to-weight ratio available. This is achieved through all-composite reinforced polymer materials and multiple attachment options. Their precision design provides the optimum number of ball bearings for minimum friction while weight...- $59.22
$69.66- $59.22
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Vendor:Ronstan
Ronstan Series 50 All Purpose Block - Single - Universal Head [RF51100]
- $52.82
$62.14- $52.82
- Unit price
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Series 50 All Purpose Block - Single - Universal HeadAll purpose (AP) blocks are a great all around solution. Self-lubricating Acetal polymer sheaves running on polished stainless steel races perform equally well with dynamic loads and high static loads. For durability and a long...- $52.82
$62.14- $52.82
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Vendor:Harken
Harken 40mm Twing Block [2699]
- $111.88
$0.00- $111.88
- Unit price
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40mm Twing BlockLow-friction Carbo Air blocks are lightweight, strong, reliable—and affordable. Companions to our popular Harken Big Boat blocks, these small, compact blocks have very high working loads for safe, easy trimming.Features: Opening side plate - Easy to rig and remove from sheet Spring...- $111.88
$0.00- $111.88
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Vendor:Harken
Harken 16mm Double Block [406]
- $53.45
$60.97- $53.45
- Unit price
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16mm Double BlockThe 16 mm is Harken’s® smallest block. It is perfect for small synthetic control lines found on high-tech dinghies. The patented bearing system uses stainless steel balls in a captive grooved race.Specifications: Sheave: 16mm / 5/8in. Length: 43mm / 1-11/16in. Weight: 27g...- $53.45
$60.97- $53.45
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Vendor:Harken
Harken 60mm Single Aluminum Element Block w/Swivel [6260]
- $97.56
$0.00- $97.56
- Unit price
- / per
60mm Single Aluminum Element Block with SwivelElement blocks introduce sideplates that combine forged aluminum and compound curves for strength. They are simultaneously contemporary and very robust. Element’s design pairs the minimum amount of metal required to protect the sheave with a proven journal bearing....- $97.56
$0.00- $97.56
- Unit price
- / per
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Vendor:Schaefer Marine
Schaefer Spring Loaded/Lined Slide/Stainless Steel f/1-1/4" T-Track [705-92]
- $422.35
$571.28- $422.35
- Unit price
- / per
Spring Loaded/Lined Slide/Stainless Steel for 1-1/4" T-TrackDelrin™ sheave ensures smooth operation and high safe working load. Stainless Steel cheeks and stainless steel slider ensure reliability. Polyethylene liner and pin stop allow for easy adjustment. Specifications: Track Size 1-1/4" x 3/16" (32 mm x 5 mm)...- $422.35
$571.28- $422.35
- Unit price
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Vendor:Ronstan
Ronstan Series 40 Ball Bearing Block - Single - Universal Head [RF40100]
- $47.89
$56.34- $47.89
- Unit price
- / per
Series 40 Ball Bearing Block - Single - Universal HeadSheaves running on Acetal or Torlon® ball bearings provide high performance & low friction. The 2-stage ball bearing system provides consistent performance over the full load range.Captive Lock universal head can be fixed in either...- $47.89
$56.34- $47.89
- Unit price
- / per
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Vendor:Ronstan
Ronstan Series 40 All Purpose Block - Single - Universal Head [RF41100]
- $36.81
$43.31- $36.81
- Unit price
- / per
Series 40 All Purpose Block - Single - Universal HeadAll purpose (AP) blocks are a great all around solution. Self-lubricating Acetal polymer sheaves running on polished stainless steel races perform equally well with dynamic loads and high static loads. For durability and a long...- $36.81
$43.31- $36.81
- Unit price
- / per
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Vendor:Barton Marine
Barton Marine Size 3 45mm Plain Bearing Pulley Block Cheek Block [N03160]
- $36.38
$40.41- $36.38
- Unit price
- / per
Size 3 45mm Plain Bearing Pulley Block Cheek BlockThe size 3 Barton plain bearing blocks have a 45mm (1 3/4" sheave size 3 block range that incorporates modern design with stainless steel frames and the latest advanced materials, using 30% fiber glass-filled nylon and...- $36.38
$40.41- $36.38
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![Schaefer Clamp-On Furling Line Stanchion Lead Block - 1" Ball Bearing [300-34]](http://www.dbmarinesupplies.com/cdn/shop/files/74705XL_533x.jpg?v=1682728865)
![Harken 60mm Single Aluminum Element Block w/Swivel [6260]](http://www.dbmarinesupplies.com/cdn/shop/files/80425XL_533x.jpg?v=1682750220)
![Schaefer Spring Loaded/Lined Slide/Stainless Steel f/1-1/4" T-Track [705-92]](http://www.dbmarinesupplies.com/cdn/shop/files/74742XL_533x.jpg?v=1682729074)