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
    Replacement sheave for mast head on Nacra 5.0, 5.2, 5.5, 5.7, 5.8, 6.0, 18 Square, Prindle 16 and Sol Cat 18 (cats that use a wire halyard). UV-resistant acetal material provides high strength and resistance to impact and wear, as well as excellent low friction properties for bearing applications.
    RONSTAN SHEAVE: P16 AND NACRA MAST HEAD
    Ronstan
    Harken 22mm Block Murrays Part# 28-0224 This Harken ball bearing micro single block with stainless side plates is a small block with high load capabilities. It is a premium quality block for your trapeze return system.
    HARKEN 22MM BLOCK
    Harken
    Hobie 16 Mast head sheave - Old Style Murrays Part# 51-16041711 The Hobie 16 Mast head sheave - Old Style is the large plastic pulley sheave that replaces the sheave in the original all aluminum Hobie 16 mast. Requires a 3/8" x 1.5" clevis pin or bolt to install Hobie 16 pre comptip masthead sheave. Measures 4 7/8" x 3/8" with a 3/8" hole.
    H-16 MAST HEAD SHEAVE-OLD SYLE
    Hobie
    H18 Mast Head/Base Sheave Murrays Part# 50-60620000 Factory replacement sheave for Hobie 18 mast head/base and outhaul assembly. Specs: 1" Diameter x 3/8" wide and 1/4" hole. Also used as traveler control line turning sheave on 2005 and newer Hobie 16 sailboats. Applications: Hobie 18 - Mast head halyard sheave ; mast base halyard sheave ; outhaul car sheaves. Hobie 16 - Jib Traveler line sheave. (in the H16 Race Corner Castings) use 50-8011251 Rivet
    H-18 MAST HEAD/BASE SHEAVE
    Hobie
    Harken 396 - 29mm Harken 180 Pivoting Block with Carbo-Cam, downhaul, Hobie.
    HARKEN 29MM PIVOTING LEAD BLOCK-CARBO-CAM CLEAT
    Harken
    Ronstan Single Block, Ferrule Murrays Part# 21-0469 This is the original clew block on most of the old Hobie cat Sailboats. This will work as a replacement jib clew block for Hobie® 14, 16 and 18 cats. Lightweight stainless block with ferrule has 1-1/8" x 5/8" sheave diameter, Delrin bearing and 1/2" line capacity. SWL: 950 lbs. This is a great option if you're looking to use a larger line diameter on your sheets or want the classic look.
    RONSTAN SINGLE BLOCK WITH FERRULE
    Ronstan
    Replacement Sheave Prindle Rudder Upper Ronstan PN RF1741 Replacement sheave for upper part of rudder casting on all models of Prindle catamarans. Replacement for Performance Sports item #4009. 1/4" wide x 3/4" diameter, 1/4" hole.
    ILLUSTRATED PRNDLE RUDDER PARTS LIST
    RONSTAN 19MM ACETAL SHEAVE, 6MM WIDTH
    Ronstan
    Harken 22mm Cheek Block Murrays Part# 28-0233 Harken micro cheek is used as a downhaul and turning block and as the Hobie 16 jib traveler control line block on the front crossbar. Specifications: 200 lb. SWL 1200 lb. breaking strength 1/4" maximum line diameter 7/8" sheave diameter 2-1/2" long
    HARKEN 22MM CHEEK BLOCK
    Harken
    Harken 29mm Clew Block Murrays Part# 28-0371 Harken's 29mm Carbo block assembly is designed to be sewn onto the clew of a sail. It can be used to replace the jib clew block on Hobie® 14 and 16. Specifications: 330 lb. SWL; 1000 lb. breaking strength; 5/16" maximum line diameter.  On Hobie® 14 and 16, attach with #21-1032 twist pin halyard shackle. Harken Part# 371
    HARKEN 29MM CLEW BLOCK
    Harken
    Harken 57mm Ratchet Block - Swivel, Becket, Cam Cleat Murrays Part# 28-2139 Harken 57mm jib block is great for use on almost all Hobie Cat, Nacra and Prindle. Carbo Ratchets allow sailors to hand-hold loaded lines and offer balance between holding power and controlled easing. Specifications Sheave diameter: 2-1/4" Length: 4-15/16" Weight: 9 oz Shackle pin diameter: 3/16" Maximum line diameter: 3/8" Maximum working load: 600 lb. Breaking load: 1500 lb.
    HARKEN 57MM RATCHET BLOCK- SWIVEL, BECKET, CAM CLEAT
    Harken
    Murrays 57mm Carbo 6:1 Mainsheet System Murrays Part# 28-61 The Murrays Harken 57mm Carbo 6:1 Mainsheet System is an improved low profile mainsheet system for Hobie 16.  By attaching a fairlead to the back side of the cleat mount the Murrays system does not need a becket on the lower block which makes the system more compact and gives sailors the ability to sheet in farther and or rake the mast back farther before having the mainsheet bottom out and go block to block.
    HARKEN 57MM CARBO 6:1 MAINSHEET SYSTEM
    Harken
    Harken 29mm Bullet Sheave Murrays Part# 28-0160 Harken's downhaul/halyard sheave makes raising the sail and/or adjusting the downhaul with Harken ball bearing sheaves much easier. This is a direct replacement for the sheaves that came with early Hobie 17s.
    HARKEN 29MM BULLET SHEAVE
    Harken
    Harken 29mm Bullet Block Murrays Part# 28-0082 Medium-size Harken single bullet block with Delrin® ball bearings 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.
    HARKEN 29MM BULLET BLOCK
    Harken
    Harken H16 Race 6:1 Main Sheet System Murrays Part# 28-61p The 6:1 Race Mainsheet System is a low profile mainsheet system is super light weight and allows for maximum mast rake. The base block is the 57mm Harken Carbo Ratchamatic from our regular 6:1 system with a 40mm carbo triple on the top. The Harken 57mm base block has a load sensing ratcheting system to help hold the line when it is under tension.
    HARKEN H-16 RACE 6:1 MAIN SHEET SYSTEM
    Harken
    Traveler Sheave H18 - 61890000 Murrays Part# 50-61890000 Hobie factory replacement sheave for Hobie 18 main traveler car. Hobie Part# 61890000
    H-18 TRAVELER SHEAVE
    Hobie
    Tracker: Sheave The standard replacement sheave for the tracker traveler on all Hobie® 14, 16 and newer 17's. Hobie® factory item #11880000. Tracker is the term used by Hobie for the rear traveler car. This can also be considered a traveler sheave. Fits Hobie Getaway Main Traveler Car.
    TRACKER TRAVELER SHEAVE
    Hobie
    Ronstan Series 20 Ball Bearing Block with Series 20 block linked at 90 Degrees Murrays Part# 21-2028 As used on the Murrays No-Cut Hi-Low Trapeze Adjustment Kit. Precision molded Acetal sheaves run on stainless steel or Torlon® ball bearings to provide high performance and low friction. The Ronstan back-to-back blocks have 3/4" sheaves and 1/4" maximum line diameter. Maximum working load is 550 lbs.; breaking load is 1210 lb. Weighs only 1.1 oz. Ronstan part #RF20284.
    RONSTAN SERIES 20 BALL BEARING BLOCK WITH SERIES 20 BLOCK LINKED AT 90 DEGREES
    Ronstan
    Harken 4:1 Mainsheet System
    Murrays Hobie wave main sheet system
    HARKEN 4:1 MAIN SHEET SYSTEM
    Harken
    Kissme Jib Traveler Car and Pulley
    KISME "OK" JIB TRAVELER CAR AND PULLEY
    Murrays Sports
    H16/18 Jib Halyard Block Assembly Murrays Part# 50-20240001 Wire jib halyard block for Hobie 16 or 18 has a sheave diameter of 1-1/2". This is a good upgrade for boats with jib halyard blocks that have a diameter smaller than 1-1/2". Hobie part# 20240001
    H-16/18 JIB HALYARD BLOCK ASSEMBLY
    Hobie
    Mini Bullet Block Murrays Part 23-0911 As used in the Murrays No-Cut EZ-Up Trap Ring Return Kit. Mini bullet block has 1-3/16" sheave, Teflon® bearing and 5/16" line capacity. Hobie Cat® uses #3103 for this block.
    MINI BULLET BLOCK
    Ronstan
    Ronstan Series 20 Utility Block, Tube Rivet Murrays Part# 21-0661 Rontan's cheek block is a Hobie® 18 and Prindle downhaul and turning block. Stainless steel cheeks and Acetal sheaves ensure a long service life with virtually no maintenance. Hollow rivets in the block heads can be fitted with shackles, which can also be used to add a becket for extra purchase.
    RONSTAN MIDGET SINGLE BLOCK (CHEEK)
    Ronstan
    Harken 57mm Carbo 10:1 System Murrays Part# 28-101 This system offers 10:1 purchase power! Light weight, low profile and very strong, these Carbo AirBlocks® have enormous working range, with a higher working load than standard blocks, even though they are lighter in weight. The base block has an on-off ratchet and will roll freely in both directions when disengaged, such as in light air. Engage the ratchet in heavy air when you need the mechanical advantage of the ratchet.
    HARKEN 57mm CARBO 10:1 SYSTEM
    Harken
    Harken 2156 40mm Pivot 180 Block with Cam
    HARKEN 40MM PIVOTING LEAD BLOCK- CAM-MATIC CLEAT
    Harken
    Ronstan Series 30 Utility Block, Fiddle Murrays Part# 21-0186 Use this Ronstan small fiddle block for 4:1 system for boom vangs or righting aids. This is used for H16 Aussie Halyard Systems too Fiddle block with tube rivets
    RONSTAN SMALL FIDDLE BLOCK
    Ronstan
    Harken 29mm T2 Soft-Attach Block Murrays Part# 28-2146 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: 1-1/8" sheave diameter 330 lb. SWL 1000 lb. breaking strength 5/16" maximum line diameter The high-strength composite T2™ is the first block with no metal shackles or rivets.
    HARKEN 29MM T2 SOFT-ATTACH BLOCK
    Harken
    Harken 22mm Becket Block Murrays Part# 28-0225 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 ball bearing micro single block with becket has stainless side plates.
    HARKEN 22MM BECKET BLOCK
    Harken
    Harken 29mm Bullet Block-Becket Murrays Part# 28-0083 Medium-size Harken single 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 BULLET BLOCK-BECKET
    Harken
    Harken 16mm Single Murrays Part# 28-0404 The Harken air block offers a very high load in an extremely lightweight block. Excellent for control lines. The block itself is only 1-1/8" long. The 5/8" sheave will accept line as large as 7/32". 250 lb. SWL; 1200 lb. breaking strength.
    HARKEN 16MM SINGLE
    Harken
    Harken 57mm Carbo 8:1 System Murrays Part# 28-81 Lightweight, low profile and very strong, these Carbo AirBlocks® have enormous working range, with a higher working load than standard blocks, even though they are lighter in weight! 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.
    HARKEN 57mm CARBO 8:1 SYSTEM
    Harken
    Harken 57mm Carbo Ratchamatic 12:1 Low-Profile Mainsheet System Murrays Part# 28-121 The Harken 57mm Carbo Ratchamatic 12:1 Low-Profile Mainsheet System is a Light weight, low profile and very strong. These Carbo AirBlocks® have enormous working range, with a higher working load than standard blocks, even though they are lighter in weight! 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.
    HARKEN 57mm CARBO 12:1 SYSTEM
    Harken
    Harken 57mm Carbo Ratchamatic 7:1 Low-Profile Mainsheet System Murrays Part# 28-71 The Harken 7:1 Mainsheet System includes a 57mm Triple Carbo Ratchamatic Base with 40mm Carbo single (Harken #HSB360) added on to it and a 57mm Triple with becket boom block (Harken #2605) By adding the 40mm Carbo single to the base block we have turned this into a low profile 7:1 Mainsheet system. line is not included. Safe working load is 1500 pounds; breaking strength is 3750 pounds.
    HARKEN 57MM CARBO RATCHAMATIC 7:1 LOW-PROFILE MAINSHEET SYSTEM
    Harken
    Harken 22mm High-Load 1250 Car-Pivoting Sheaves, Swivel Cam Murrays Part# 28-2766 The Harken 1250 High Load Traveler Car With Aluminum Cam is a replacement main traveler car for the Hobie 20 and most Nacra catamarans. It has captive bearings works with the 2003 and newer track and can be adapted to be used on the older non captive ball tracks used prior to 2003.
    HARKEN 22MM HIGH-LOAD 1250 CAR-PIVOTING SHEAVES, SWIVEL CAM
    Harken
    Harken Micro Carbo-Cam Kit-Wire Fairlead Murrays Part# 28-0473 ​Wire fairleads maintain a low profile while holding the line close to the cleat. Kit includes lightweight, fiber-reinforced 471 Carbo Cam, and 475 wire fairlead.
    HARKEN MICRO CARBO-CAM KIT-WIRE FAIRLEAD
    Harken
    Harken 40mm Ratchet Block-Swivel, Becket, Cam Cleat Murrays Part# 28-2611 ​Carbo Ratchets allow sailors to hand-hold loaded lines and offer balance between holding power and controlled easing.
    HARKEN 40MM RATCHET BLOCK-SWIVEL, BECKET, CAM CLEAT
    Harken
    16mm Block -Removable Sheave Murrays Part# 28-0294sp SPECIFICATIONS Sheave Ø (mm) 16 mm Sheave Ø (in) 5/8 in Length (mm) 29 mm Length (in) 1 1/8 in Weight (g) 5 g Weight (oz) 0.2 oz Maximum line Ø (mm) 5 mm Maximum line Ø (in) 7/32 in Maximum working load (kg) 113 kg Maximum working load (lb.) 250 lb. Breaking load (kg) 544 kg Breaking load (lb.) 1200 lb. Part No. HSB294
    HARKEN 16MM BLOCK-REMOVABLE SHEAVE
    Harken
    Harken 16mm Flip-Flop Block Murrays Part# 28-0437 The 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. Harken Part# 437
    HARKEN 16MM FLIP-FLOP BLOCK
    Harken
    Out of Stock
    Series 15 BB Block, Single Loop Top Murrays Part# 21-15101 The Series 15 BB Block, Single Loop Top is the smallest and lightest ball bearing block available. With a precision molded acetal sheave running on stainless steel ball bearings that provide high performance low friction. It has a single loop head blocks include an O-ring to separate running line from head lashing or fixing. Applications: Dinghy control lines Vangs, cunninghams and tweakers Shock cord tensioning systems
    RONSTAN SERIES 15BB BLOCK, SINGLE LOOP TOP
    Ronstan
    Out of Stock
    H16 Masthead Sheave Spacer Murrays Part# 50-20614231 H16 Masthead Sheave Spacer. This is a replacement bearing surface for the comptip masthead sheaves in H16 mastheads. Fits Hobie Getaway Masthead Sheaves Hobie Part# 20644231
    H-16 MASTHEAD SHEAVE SPACER
    Hobie
    HARKEN 40MM T2 LOOP SOFT-ATTACH BLOCK
    Harken
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