Sailboat Blocks & Pulleys

The Lewmar Delrin Balls Size 0 replace the ball bearings on your Lewmar Blocks. Bag of 100 replacement Delrin balls to suit Lewmar blocks. Please refer to the specification of each size for more details. Features High strength, Low...

Ideal for use with hand-held loads, Lewmar's control Blocks feature lightweight, performance load-bearing capacity. MRT(Metal Replacement Technology) and a stainless steel central race and balls provide a weight advantage, while Long Fibre Technology...

The Lewmar 50mm Synchro Blocks are engineered for speed, efficiency, and superior handling. We use a combination of scientifically optimised block geometry, a Free-Spin bearing, and a self-aligning head to reduce friction and increase efficiency by up...

The Lewmar 30mm Single Block Max Line 8mm is ideal for use with hand-held loads. Lewmar’s Control Blocks feature lightweight, performance load-bearing capacity. MRT (Metal Replacement Technology) and a stainless steel central race and balls...

Ideal for use with hand-held loads, Lewmar’s Control Blocks feature lightweight, performance load-bearing capacity. MRT (Metal Replacement Technology) and a stainless steel central race and balls provide a weight advantage, while Long Fibre...

The Lewmar Size 1 Standup Car Conversion Kit converts your shackle type car system to a standup version. Features Lewmar Size 1 Easy to install Suits Lewmar's NTR travellers

The Lewmar 30mm Double Block with Becket is ideal for use with hand-held loads on sailing craft. They are lightweight with high load-bearing capacity. MRT (Metal Replacement Technology) and stainless steel central race ball bearings provide a...

The Lewmar 30mm Double Block with Becket is ideal for use with hand-held loads on sailing craft. They are lightweight with high load-bearing capacity. MRT (Metal Replacement Technology) and stainless steel central race ball bearings provide a...

The Lewmar 40mm Cheek Block is ideal for use with hand-held loads. Lewmar’s Control Blocks feature lightweight, performance load-bearing capacity. MRT (Metal Replacement Technology) and a stainless steel central race and balls provide a weight...

The Nautos Line Single Swivel series offers a comprehensive range of high-performance, swivel-mounted single blocks designed for marine rigging systems. Whether you're working with 28 mm, 39 mm, 57 mm sheave diameters — or configurations with fixed...

The Nautos Ball Snatch Block offers a reliable and easy-to-operate snatch-style block designed for rigging and deck systems on sailing vessels. Available in two size variants (30 mm sheave diameter and 40 mm sheave diameter), this block features...

The Nautos Plain Single Swivel Series offers a range of compact and lightweight blocks designed for various sailing applications. These blocks feature a 45 mm sheave diameter and are constructed from durable materials to ensure reliable performance in...

The Nautos Organic Fiddle Swivel is a high-performance swivel block designed to deliver minimal friction, smooth operation, and enhanced durability. Nautos achieves this by combining composite cheeks with aluminium races, producing near-zero friction...

The Holt Nautos Organic Single Swivel is a high-performance sailing hardware accessory designed for precision, durability, and smooth operation. Engineered for modern sailboats, this single swivel ensures effortless rotation under load, making it ideal...

The Nautos Automatic Ratchet block from Nautos brings next-level rigging control to sailing systems. Designed for boats where efficient line management and quick reactions matter, this block features a load-sensing ratchet mechanism - it rolls freely...

Holt’s Blue Block series offers reliable replacement blocks for Laser and Pico dinghies, designed to keep your rigging smooth and efficient on Irish waters. Available in several configurations — single block, block with becket, or joined twin...

The Holt S/S Plate with HT2021F Dynamic Fork Blocks (model HT7008) is a stainless-steel replacement plate designed for dinghies such as the ILCA / Laser class. It features a stainless steel mounting plate fitted with twin 20 mm dynamic fork-headed blocks...

Elevate your kayaking experience with the Hobie Kayak Cheek Block model number 81450001. This essential component is designed to optimize the performance of your Hobie kayak's control systems, particularly for rudder lines and other deck-mounted...

Harken soft-attach Fly blocks are designed to provide strength beyond mass, providing 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. 18 mm blocks...

The Harken BlackMagic Cage & Bearing Assembly is a precision spare part designed for the BlackMagic loop block series. Whether you’re repairing a 57 mm or 75 mm unit, this cage and bearing rebuild kit restores the block’s performance,...

Mount fixed leads on boats with bulwarks to keep sidedeck clear. Specifications Height (in): 2 1/8" ( 53 mm ) Length (in): 2" ( 51 mm ) Sheave Ø (in): 1 1/2" ( 38 mm ) Width (in): 7/8" ( 22 mm ) Weight (oz): 2.1 oz. ( 60 g ) Maximum line Ø...

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 line applications. Specifications Length (in): 1...

The Harken Carbo Ratchet Block with Becket combines lightweight strength with advanced ratchet technology, making it ideal for high-load applications in marine environments. Features Material - Durable, UV-stabilized carbon-black infused...

Power3 ratchet blocks provide sailors that race small one-designs with three holding-power options to handle a variety of wind and sea conditions. More choices allow sailors to fine-tune their set-ups in tandem with the purchase that provides the...

The 9050 U-adaptor allows 57/75 mm Carbo blocks to be attached to 170 Hexa-Cat Base or other blocks with 12.7 mm (1/2") posts and 6.35 mm (1/4") pins. Specifications Weight (oz): 0.92 oz. ( 26 g ) Maximum working load (lb): 1500 lb ( 680 kg...

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 Sheave Ø...

The Harken Midrange Block Series is engineered for the demanding loads of medium and large offshore boats. Built with a robust frame and precision-machined sheaves, these blocks deliver smooth, efficient trimming and releasing under any condition. The...

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. Specifications Sheave...

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. Specifications Sheave...

These multipurpose blocks are a must on racing yachts of all sizes. Opening sideplates make them easy to deploy, allowing crew to quickly fasten them wherever needed—perfect for temporary leads, line deflection, and static line functions requiring...

Years of design and manufacturing experience, coupled with collaboration with boat builders, designers, and sailors, have resulted in the Lewmar HTX Hardware Range. Drawing upon the design of the Racing Range, the HTX blocks are constructed simply from...

These Lewmar HTX single blocks are ideal for frequently adjusted, highly loaded systems using modern line technology and reduced line diameters. Drawing upon the design of the racing range, the HTX blocks are constructed simply from high-quality...

KBRC blocks are high-load lashing blocks, ultra-lightweight, compact lashing, and capable of handling high loads ( 1.5T) with the lowest friction ratio possible (2%). All of the KBR blocks feature a titanium sheave and roller bearing as well as a ceramic...

KBRC blocks are based on the most successful features from the other KBR blocks: an ultra-lightweight and compact lashing block capable of handling high loads (1.5T) with the lowest friction ratio possible (2%). All of the KBR blocks feature a titanium...

Standard blocks with stainless steel cheeks and nylon sheave. Sheave diameter 34 mm. Specifications Cheek material: Stainless steel Sheave material: Nylon Sheave diameter: 34 mm Rope diameter: Up to 10 mm

Lewmar Synchro Footblocks feature alloy cheeks, fixing isolators, and a moulded base plate to prevent sealant ingress into the sheave. The jamming footblock variant is intended for light hand loads only and incorporates a clever two-step jammer...

Element blocks introduce side-plates 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...

Element blocks introduce side-plates 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...

Element blocks introduce side-plates 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...