Blocks

Series 40 All Purpose Block - Double Block - Full Swivel 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...

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...

Series 5 Fiddle Swivel Block- 54mmPlain Bearing BlocksBarton plain bearing blocks have a precision moulded acetal sheave running on a large diameter brass bearing, ensuring free running under the highest of loads.SpecificationsSheave size: 54mm x...

40mm/29mm Carbo Traveler BlockLow-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...

25mm Wire Block with ShackleLightweight, low-friction wire blocks carry wire halyards and high-strength control lines on boats of all sizes.Specifications:Sheave: 25mm / 1in.Weight: 28g / 1oz.Shackle pin: 5mm / 3/16in,Maximum wire: 2mm / 3/32in.Maximum...

22mm Fiddle Micro Block with V-Jam & BecketLow-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:...

Series 50 All Purpose Block - Single Stand UpFeatures:Exceptionally high working loadsLow maintenance, long service lifeSelf-lubricating Acetal polymer sheave ensures low friction and extreme durabilityCaptive Lock™ universal headSlotted pin...

Size 5 54mm Plain Bearing Pulley Block Single Block SwivelThe Size 5 Barton range of blocks has a 54mm 2 1/8" sheave. They are rugged construction, featuring high-grade molded side plates that are through-bolted and riveted for added strength and...

Series 40 Orbit Single BB Single Stand-Up 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...

Series 55 Ball Bearing Orbit Block™ - Single - Becket - Swivel HeadLightweightKilogram for kilogram of working load, BB and RT Orbit Blocks™ are the world's lightest. The unique orbital design allows the bearing to only be in the active areas...

Series 20 Ball Bearing Block - Triple - Becket - 2-Axis Shackle HeadFeatures:Low frictionHigh static and dynamic load capacityLightweightPrecision molded Acetal sheaves running on stainless steel or Torlon® ball bearings provide high performance &...

25mm Treble Block with V-JamThe 25mm plain bearing block range is one of SeaSure's oldest and best-selling ranges. The range uses marine-grade stainless steel side plates and rivets with an arnite (plastic) sheave, which is incredibly hard-wearing and...