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
- Date, new to old
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Vendor:Harken
Harken 16mm Forkhead Block [376]
- $36.34
$41.80- $36.34
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16mm Forkhead 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 and has a 250 lb (113 kg) maximum working load.Specifications:...- $36.34
$41.80- $36.34
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Vendor:Schaefer Marine
Schaefer Series 5 Flat Base/Alum Cheek/Delrin Sheave [504-11]
- $126.70
$163.28- $126.70
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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 mm) Length 3-5/8" (92 mm) Width 2-7/32" (57 mm) Height...- $126.70
$163.28- $126.70
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Vendor:Schaefer Marine
Schaefer Single Stainless Steel Block - 51mm Sheave [505-05]
- $122.33
$158.91- $122.33
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Single Stainless Steel Block - 51mm SheaveSingle block with stainless steel cheeks. Delrin™ sheave ensures smooth operation and high safe working load. Specifications:Sheave Dia. 2" (51mm)Thickness 15/16" (24mm)Width 2 1/8" (54mm)Length 4 13/32" (112mm)SWL 1750 lbs. (795kg)Weight 7.1oz (201g)Max Line 7/16" (11mm)- $122.33
$158.91- $122.33
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Vendor:Ronstan
Ronstan Series 30 Ball Bearing Orbit Block - Cheek [RF35151]
- $28.04
$32.99- $28.04
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Series 30 Ball Bearing Orbit Block - CheekBall 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...- $28.04
$32.99- $28.04
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Vendor:Barton Marine
Barton Size 3 45mm Plain Bearing Pulley Block Stanchion Lead Block [N03190]
- $45.04
$50.05- $45.04
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Size 3 45mm Plain Bearing Pulley Block Stanchion Lead BlockThe size 3 Barton plain bearing blocks have 45mm (1 3/4" sheave size 3 block range incorporates modern design with stainless steel frames and the latest advanced materials, using 30% fibre glass filled nylon and...- $45.04
$50.05- $45.04
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Vendor:Ronstan
Ronstan Series 40 AP Sheave - Acetal Solid Bearing - 40mm (1-9/16")OD [RF41000]
- $12.26
$14.42- $12.26
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Series 40 AP Sheave - Acetal Solid Bearing - 40mm(1-9/16")ODPrecision moulded Acetal sheaves running on Acetal or Torlon® ball bearings provide high performance & low friction.Acetal Sheaves: Choice of bearings Solid bearing - high strength and durability, utilizing the self-lubricating properties of Acetal U.V....- $12.26
$14.42- $12.26
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Vendor:Harken
Harken 45mm Single Element Block w/Swivel [6230]
- $69.99
$0.00- $69.99
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45mm Single 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. So...- $69.99
$0.00- $69.99
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Vendor:Lewmar
Lewmar 50mm Synchro Block - Single [29925001BK]
- $40.77
$58.19- $40.77
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50mm Synchro Block - SingleLewmar's Synchro Blocks are engineered for speed, efficiency, and superior handling. Using a combination of scientifically optimized block geometry, a Free-Spin bearing, and a self-aligning head to reduce friction and increase efficiency by up to 40%, over budget blocks on...- $40.77
$58.19- $40.77
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Vendor:Ronstan
Ronstan Series 20 Ball Bearing Block - Single - Cheek Rivet Mount [RF20151A]
- $33.31
$39.20- $33.31
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Series 20 Ball Bearing Block - Single - Cheek Rivet MountFeatures: Low friction High static and dynamic load capacity Lightweight Suitable for screw or pop rivet mounting Precision molded Acetal sheaves running on stainless steel or Torlon® ball bearings provide high performance & low...- $33.31
$39.20- $33.31
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Vendor:Ronstan
Ronstan Series 40 Orbit BB Cheek Block [RF48151]
- $84.67
$99.61- $84.67
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Series 40 Orbit BB Cheek BlockThe Series 40 ball-bearing Orbit Blocks™ provides the perfect balance of strength, performance, and reliability. They offer class-leading dynamic and static load ratings, the highest available in this size of performance blocks. Lightweight and strong toughened glass fiber reinforced...- $84.67
$99.61- $84.67
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Vendor:Ronstan
Ronstan Series 30 Ball Bearing Block - Single - Loop Top [RF30101]
- $32.07
$37.74- $32.07
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Series 30 Ball Bearing Block - Single - Loop TopFeatures: Low friction 2-stage ball bearing system provides consistent performance over the full working load range High static and dynamic load capacity Light weight Versatile head fittings Sheaves running on Acetal or Torlon® ball bearings...- $32.07
$37.74- $32.07
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Vendor:Ronstan
Ronstan Series 15 Ball Bearing Utility Block - Single Block, Loop Head [RF15101]
- $19.47
$22.91- $19.47
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Series 15 Ball Bearing Utility Block - Single Block, Loop HeadFeatures: Smallest and lightest ball bearing block available Precision molded acetal sheave running on stainless steel ball bearings provide high performance & low friction Single loop head blocks include an O-ring to separate running...- $19.47
$22.91- $19.47
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Vendor:Barton Marine
Barton Marine Size 3 Single Plain Bearing Block w/Swivel [N03130]
- $35.04
$38.95- $35.04
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Size 3 Single Plain Bearing Block with SwivelBarton plain bearing blocks have a precision molded acetal sheave running on a large diameter brass bearing, ensuring free running under the highest of loads.Features: Fully swiveling head with removable shackle For use on dinghies, day boats,...- $35.04
$38.95- $35.04
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Vendor:Ronstan
Ronstan Series 30 Ball Bearing Orbit Block - Triple [RF35302]
- $80.69
$94.94- $80.69
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Series 30 Ball Bearing Orbit Block - TripleBall 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...- $80.69
$94.94- $80.69
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Vendor:Schaefer Marine
Schaefer Single Stainless Steel Block - 60mm Sheave [705-05]
- $208.27
$270.26- $208.27
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Single 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" (64mm) Length 5 1/32" (128mm) SWL...- $208.27
$270.26- $208.27
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Vendor:Barton Marine
Barton Size 2 35mm Plain Bearing Pulley Block Double Swivel Becket [N02231]
- $68.35
$75.96- $68.35
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Size 2 35mm Plain Bearing Pulley Block Double Swivel & BecketThe Barton Size 2 Plain Bearing Block has a 35mm (1 3/8") sheave. This block range size provides high performance and load values in a variety of assemblies & configurations. The range has an...- $68.35
$75.96- $68.35
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Vendor:Barton Marine
Barton Size 3 45mm Plain Bearing Pulley Block Single Swivel Becket [N03131]
- $43.51
$48.34- $43.51
- Unit price
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Size 3 45mm Plain Bearing Pulley Block Single Swivel & BecketThe size 3 Barton plain bearing blocks have 45mm (1 3/4" sheave size 3 block range incorporates modern design with stainless steel frames and the latest advanced materials, using 30% fibre glass-filled nylon and...- $43.51
$48.34- $43.51
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Vendor:Barton Marine
Barton Size 5 54mm Plain Bearing Pulley Block Double Swivel Becket [N05231]
- $109.75
$121.94- $109.75
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Size 5 54mm Plain Bearing Pulley Block Double Swivel & BecketThe Size 5 Barton range of blocks has a 54mm 2 1/8" sheave. They are a rugged construction, featuring high-grade moulded side plates that are through-bolted and riveted for added strength and security. All...- $109.75
$121.94- $109.75
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Vendor:Barton Marine
Barton Size 5 54mm Plain Bearing Pulley Block Double Block Swivel [N05230]
- $99.64
$110.71- $99.64
- Unit price
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Size 5 54mm Plain Bearing Pulley Block Double Block & SwivelThe Size 5 Barton range of blocks has a 54mm 2 1/8" sheave. They are a rugged construction, featuring high-grade moulded side plates that are through-bolted and riveted for added strength and security. All...- $99.64
$110.71- $99.64
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Vendor:Barton Marine
Barton Size 5 54mm Plain Bearing Pulley Block Single Swivel Becket [N05131]
- $94.16
$104.62- $94.16
- Unit price
- / per
Size 5 54mm Plain Bearing Pulley Block Single Swivel & BecketThe Size 5 Barton range of blocks has a 54mm 2 1/8" sheave. They are a rugged construction, featuring high-grade moulded side plates that are through-bolted and riveted for added strength and security. All...- $94.16
$104.62- $94.16
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