Sailing Blocks & Pullies

Sailing Blocks & Pullies

165 products

    Blocks and pullies for Hobie, Nacra and Prindle catamarans.  Mainsheet, Jib sheet, cheek blocks, halyard blocks, replacement sheaves, single, double, triple and quad blocks.

    165 products
    Harken 57mm Triple Ratchet Block-Swivel, 40 mm Side Carbos, Cam Cleat Murrays Part# 28-8454 Carbo Ratchets allow sailors to hand-hold loaded lines and offer balance between holding power and controlled easing.
    HARKEN 57MM TRIPLE RATCHET BLOCK-SWIVEL, 40MM SIDE CARBOS, CAM CLEAT
    Harken
    Harken 57mm 5-Sheave Block-Swivel Murays Part# 28-2762 Low-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.
    HARKEN 57MM 5-SHEAVE BLOCK-SWIVEL
    Harken
    Harken 57mm Block-Swivel Murrays Part# 28-2600 The Harken 57mm Carbo Block with Swivel is a low-friction Carbo Air block that is 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. They can be used to replace the single Seaway blocks on a Hobie mainsheet system. Ideal for 8-10m lines, common on many classes of dingy and small catamarans.
    HARKEN 57MM BLOCK-SWIVEL
    Harken
    Harken 51mm Wire Block-Becket Murrays Part# 28-0314 The Harken 51 mm Wire Block - Becket is Lightweight, low-friction wire blocks carry wire halyards and high-strength control lines on boats of all sizes.
    HARKEN 51MM WIRE BLOCK-BECKET
    Harken
    Harken 38mm Wire Through-Deck Murrays 28-0306 Lightweight, low-friction wire blocks carry wire halyards and high-strength control lines on boats of all sizes. Harken Part# 306
    HARKEN 38MM WIRE THOUGH-DECK
    Harken
    Harken 29mm Fly Block Murrays Part# 28-2171 These blocks are the standard upgrade for F18 and other Spinnaker Beachcats that have suffered from halyard block failure.  The 29mm Fly Block Single- Harken soft-attach Fly blocks are designed to provide strength without mass, providing sailors with big power in a low-aero package. Designed specifically for high-tech line, these efficient blocks have an incredible working load for their small size.
    HARKEN 29MM FLY BLOCK
    Harken
    Harken16mm Forkhead Block Murrays Part# 28-0376 16 mm Forkhead Block 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.  Harken part # 376
    HARKEN 16mm FORK HEAD BLOCK
    Harken
    Harken 75mm Triple Ratchamatic Block-Swivel, Becket, Cam Cleat, 57mm Block Murrays Part# 28-2687 The Carbo Ratchamatic® is a load-sensing ratchet block that rolls freely in both directions under low loads and automatically engages the ratchet as loads increase. Shifting between ratchet and light-air modes is seamless.
    HARKEN 75MM TRIPLE RATCHAMATIC BLOCK-SWIVEL, BECKET, CAM CLEAT, 57MM BLOCK
    Harken
    Harken Block 57mm T2 Soft-Attach Ratchet Block for catamarans, this tie-on block eliminates the need for shackles, posts, swivels, etc. It is ultra-lightweight and sized like a bullet-block. Specifications: 2-1/4" sheave diameter 500 lb. SWL 2000 lb. breaking strength 3/8" maximum line diameter Harken Part # 2160
    HARKEN 57MM T2 SOFT-ATTACH RATCHAMATIC BLOCK
    Harken
    Harken 40mm T2 Soft-Attach Ratchamatic Block Murrays Part# 28-2159 Harken Block 40mm T2 Soft-Attach Ratchet Block for catamarans, this tie-on block eliminates the need for shackles, posts, swivels, etc. It is ultra-lightweight and sized like a bullet-block.
    HARKEN 40MM T2 SOFT-ATTACH RATCHAMATIC BLOCK
    Harken
    Single Wire Block With Shackle Murrays Part# 22-3302 This single wire block can be used to replace the jib halyard block on Nacra 5.2, Performance part 9896.
    SINGLE WIRE BLOCK WITH SHACKLE
    Schaefer Marine
    Ronstan Series 55 Orbit Block, Ratchet with Becket and Cam Cleat Murrays Part# 21-56130 The Ronstan Orbit 55 Jib Block Ratchet Orbit Block™ has the highest holding power available and is ideal as a jib sheet cleat for the Hobie® 18, Hobie® 20, etc. The automatic ratchet mechanism engages when load is applied, but switches off when it's released.
    RONSTAN SERIES 55 ORBIT BLOCK, RATCHET WITH BECKET AND CAM CLEAT
    Ronstan
    Ronstan Series 55 Orbit Block™, Ratchet Murrays Part# 21-56100 Now you can enjoy the flexibility of setting up your ratchet blocks to suit yourself. Ronstan is the only company that offers a ratchet block with both auto and manual engagement modes. In the auto mode of the ratchet mechanism engages when load is applied, but switches off when it's released. This lets the sheet run out smoothly and freely-great for rapid easing of the sheet and for gybing asymmetric spinnakers.
    RONSTAN SERIES 55 ORBIT BLOCK, RATCHET
    Ronstan
    Ronstan Series 30 Ball Bearing Orbit Block, Lashing Murrays Part# 21-35101 Ronstan ball bearing Orbit Blocks™ boast the highest strength-to-weight ratio available, achieved through all-composite reinforced polymer materials and multiple attachment options. Ultra low profile through-sheave becket. Use for jib clew block.
    RONSTAN SERIES 30 BALL BEARING ORBIT BLOCK, LASHING
    Ronstan
    Out of Stock
    PRINDLE LOOP TOP SINGLE BLOCK
    Ronstan
    Ronstan Series 15 Kite Block, Black with White Sheave Murrays Part# 21-13101 Ronstan's little block has twice the working load of their previous kite block (black RF668) with half the weight. Replace older, heavier blocks now! 300# SWL; Sheave diameter 5/8"; max. line size 5/32".
    RONSTAN SERIES 15 KITE BLOCK, BLACK WITH WHITE SHEAVE
    Ronstan
    Oxen Sheave Self-Locking Murrays Part# 005-0761-00
    OXEN BLOCK SELF-LOCKING SHEAVE
    Oxen
    Harken 29mm Wire Bullet Block-Swivel Murrays Part# 28-0183 Low-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 lines applications. ire Bullet blocks use roller bearings to carry higher loads and feature hardcoat-anodized PTFE impregnated aluminum sheaves for strength and corrosion resistance.
    HARKEN 29MM WIRE BULLET BLOCK-SWIVEL
    Harken
    Harken 22mm Triple Becket Block-Cam Cleat Murrays Part# 28-0231 Harken ball bearing micro triple block with becket and cam has free-rolling Delrin® ball bearings. Sheaves are UV-stabilized with carbon-black additive for maximum protection. Stainless steel side plates give strength. Harken's low-friction micro blocks are compact and lightweight, with fast trim and release under high or low loads.
    HARKEN 22MM TRIPLE BECKET BLOCK-CAM CLEAT
    Harken
    Harken 29mm Bullet Block - Swivel Murrays Part# 28-0166 Medium-size Harken double bullet block with swivel has Delrin ball bearings. The low-friction bullet block is compact and lightweight, with fast trim and release under high or low loads. Free-rolling Delrin® ball bearings. Sheave and sideplates are UV-stabilized with carbon-black additive for maximum protection.
    HARKEN 29MM BULLET BLOCK-SWIVEL
    Harken
    Out of Stock
    Harken 38mm Big Bullet Block-Swivel Murrays Part# 28-0168 Low-friction bullet blocks lead control lines aft. They are compact and lightweight, with fast trim and release under high or low loads. Harken's big single bullet block with swivel has free-rolling Delrin® ball bearings. Sheave and sideplates are UV-stabilized with carbon-black additive for maximum protection.
    HARKEN 38MM BIG BULLET BLOCK-SWIVEL
    Harken
    HARKEN 38MM BIG BULLET BLOCK-BECKET
    Harken
    Harken 29mm Wire Bullet Block Murrays Part# 28-0098 Low-friction bullet blocks lead control lines aft. This block is compact and lightweight, with fast trim and release under high or low loads. Free-rolling Delrin® ball bearings, sheave and sideplates are UV-stabilized with carbon-black additive for maximum protection. This wire bullet block uses roller bearings to carry higher loads and features Hardkote-anodized Teflon®-impregnated aluminum sheaves for strength and corrosion resistance.
    HARKEN 29MM WIRE BULLET BLOCK
    Harken
    Harken 3.00" Hexaratchet® Block-Swivel, Starboard Murrays Part# 28-0009 Hexaratchets grip loaded sheets, yet allows sailors to ease and trim quickly and with complete control. A switch on the side engages and disengages the ratchet mechanism. Use the 043 or 044 revers ratchets with the 019 and 009 singles or 050 single with becket on spinnaker and jib sheets where ratchets rotate in opposite directions and on/off switches face up.
    HARKEN 3.00" HEXARATCHT BLOCK-SWIVEL, STARBOARD
    Harken
    Harken Block Single 2.25" Hexaratchet Murrays Part# 28-0019 Sheave Size 57mm 2.25" Max Line Size 10mm 3/8" Max Working Load 227KG 500lb Breaking Strength 907kg 2000lb Holding Power 10:1 Hexaratchets grip loaded sheets, yet allow sailors to ease and trim quickly and with complete control. A switch on the side engages and disengages the ratchet mechanism. Use the 043 or 044 revers ratchets with the 019 or 050 single with becket on spinnaker and jib sheets where ratchets rotate in opposite directions an
    HARKEN 2.25" HEXARATCHET BLOCK-SWIVEL, STARBOARD
    Harken
    Harken 22mm Block-Swivel Murrays Part# 28-0292 Low Friction Micro Blocks are compact and lightweight. They are ideal for sailboards, smaller dinghies and lightly loaded control lines on boats of all sizes.
    HARKEN 22MM BLOCK-SWIVEL
    Harken
    Harken 29mm Double Bullet Block-Becket Murrays Part# 28-0085 Medium-size Harken double bullet block with becket has Delrin ball bearings and works well for control line or jib sheeting lines. The low-friction bullet block is compact and lightweight, with fast trim and release under high or low loads. Free-rolling Delrin® ball bearings. Sheave and sideplates are UV-stabilized with carbon-black additive for maximum protection.
    HARKEN 29MM DOUBLE BULLET BLOCK-BECKET
    Harken
    Harken Block Double with Becket 2.25" Harken PN 004 Sheave Size 57mm 2.25 Inches Max Line Size 12MM  7/16" Max Working Load 454kg  1000lb Breaking Load 1361kg 3000lb The 2.25 in (57mm) blocks are compact and lightweight, with fast trim and release under high or low loads. Perfect for dinghies, scows, beachcats and iceboats, as well as small offshore racers and cruisers.
    HARKEN 2.25" BLOCK DOUBLE WITH BECKET
    Harken
    HARKEN 2.25" BLOCK DOUBLE
    Harken
    Harken 29mm Stand-up Block Murrays Part# 56-31297 Low-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.  Specifications: 330 lb. SWL 1000 lb. breaking strength 5/16" maximum line diameter 1-1/8" sheave diameter 2-3/16" long Harken Part #349 Nacra Part# 31297
    HARKEN CARBO STANDUP FIXED 29MM
    Harken
    Harken 40mm Quad Block Murrays Part# 28-2654 Low-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.
    HARKEN 40MM QUAD BLOCK
    Harken
    Harken 57mm Triple Ratchamatic® Block-Swivel, Cam Cleat, 40 mm Block Murrays Part# 28-2632 The Harken Carbo Ratchmatic® is a load-sensing ratchet block that rolls freely in both directions under low loads, and automatically engages the ratchet as loads increase. Shifting between ratchet and light air modes is seamless. Unloaded, the sheet runs freely during mark roundings and jibes. Ratchet engagement may be adjusted to a higher or lower load according to strength and sailing style.
    HARKEN 57MM TRIPLE RATCHAMATIC BLOCK-SWIVEL, CAM CLEAT, 40MM BLOCK
    Harken
    Harken 7:1 Carbo Ratchamatic Base Block. Harken HSB360
    HARKEN BLOCK 7:1 CARBO RATCHAMATIC BASE
    Harken
    Harken 57mm Triple Ratchamatic Block-Swivel, Cam Cleat Murrays Part# 28-2629 The Carbo Ratchmatic® is a load-sensing ratchet block that rolls freely in both directions under low loads, and automatically engages the ratchet as loads increase. Shifting between ratchet and light air modes is seamless. Unloaded the sheet runs freely during mark roundings and jibes. Ratchet engagement may be adjusted to a higher or lower load according to strength and sailing style.
    Harken Hobie 16 main sheet base block
    HARKEN 57MM TRIPLE RATCHAMATIC BLOCK-SWIVEL, CAM CLEAT
    Harken
    Harken 57mm Triple Block-Swivel, Becket Murrays Part# 28-2605 This Carbo AirBlock® has an enormous working range, with a higher working load than standard blocks, even though it is lighter in weight! This is a fantastic option for the top block for a 7:1 mainsheet system, such as an Hobie 18 catamaran or Hobie Miracle 20 catamaran.
    HARKEN 57MM TRIPLE BLOCK-SWIVEL, BECKET
    Harken
    Harken 57mm Quad Block-Swivel Murrays Part# 28-2631 57mm Carbo Blocks have an enormous working range and a very high strength-to-weight ratio. Use with #28-2632 base block for an 8:1 Carbo low-profile mainsheet system.
    HARKEN 57MM QUAD BLOCK-SWIVEL
    Harken
    Harken 57mm Double Ratchamatic Block-Swivel Murrays Part# 28-2634 The 57mm Harken Carbo Ratchamatic® is a load-sensing ratchet block that rolls freely in both directions under low loads and automatically engages the ratchet as loads increase. Shifting between ratchet and light-air modes is seamless.
    HARKEN 57MM DOUBLE RATCHAMATIC BLOCK-SWIVEL
    Harken
    Harken 57mm Carbo Boom Block 6-Sheave Murrays Part# 28-10925 Harken 57mm Carbo Blocks have an enormous working range and a very high strength-to-weight ratio. This 57mm Carbo boom block has 6 sheaves. A swivel keeps the boom block aligned with your base block.
    HARKEN 57MM CARBO BOOM BLOCK 6-SHEAVE
    Harken
    Harken 40mm 90° Block Murrays Part# 28-2659 Low-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. Harken Part# 2659
    HARKEN 40MM 90° BLOCK
    Harken
    Harken 29mm Triple Block -Becket, Cam Cleat Murrays Part# 28-0347 Harken's 29mm Carbo block is compact and extremely strong. This triple features U-Locks to hold the swivel in front/side position, or to let it spin freely. The compact cam arm supports high-load purchases of 5:1 or 6:1. Specifications: 990 lb. SWL 2000 lb. breaking strength 5/16" maximum line diameter 3/16" shackle pin diameter 3-3/8" long Harken Part# 347
    HARKEN 29MM TRIPLE BLOCK- BECKET, CAM CLEAT
    Harken
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