Blocks - Single

Harken 29mm Block 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. Part...

Sheaves running on Acetal or Torlon® ball bearings provide high performance & low friction. The 2-stage ball bearing system provides consistent performance over the full load range. Precision moulded Acetal sheaves running on Acetal or...

Lightweight Highest working load in its class Secure, versatile attachment Low profile and compact Ultra low profile thru-sheave becket Low friction 2-stage ball bearing system provides consistent performance over the full working load range. SP...

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. Note: DO NOT use Harken equipment for human suspension unless product is specifically...

Wichard Single Plain Bearing Block Opposite in Line Complete range of plain bearing blocks.  Modern design.  Withstand high loads.  Ideal for static operations.  The sheave runs on the stainless steel bush.  Light cheeks...

Ronstan Flat Mount Pulley The Ronstan Flat Mount Pulley 55mm with a 5mm Wire Sheave is an essential component for enhancing sailing performance and ensuring optimal rigging efficiency. This premium nautical equipment is specifically designed...

Longitudinal lugged block 25mm x 9.5mm stainless roller bearing, red acetal resin sheave *Image of RM305* Part Number RLY-RM306

Features: Low friction High static and dynamic load capacity Lightweight Applications: Dinghy control lines Dinghy vangs Cunninghams Traveller controls Dinghy barber haulers Spinnaker pole launching systems Materials: Stainless Steel...

Wichard Single Plain Bearing Upright Block with 35mm Sheave Modern design.  Withstand high loads.  Ideal for static operations.  The sheave runs on the stainless steel bush.  Light cheeks protecting the sheave.  Wide choice of...

38mm Ball Bearing Block with Becket Single Sheave Cam Cleat: Fixed Part Number Length Becket Breaking Load Max Line Size RLY-PYF601 89mm 8mm 136kg 64mm

Wire blocks have purpose deisgned narrow sheaves and grooves. Removal sheave for easy fitting and without cutting the wire termination Applications: Wire blocks suit halyards, vang and backstay applications Flared cheeks to minimise...

Sheaves running on Acetal or Torlon® ball bearings provide high performance & low friction. The 2-stage ball bearing system provides consistent performance over the full load range. Features: Low friction 2-stage ball bearing system...

Ronstan Series 30 Ball Bearing Block, Upright Lead Single upright Lead blocks are a low profile solution for leading halyards or other rig sail controls back to cleats or jammers. Precision moulded Acetal sheaves running on Acetal or Torlon® ball...

Ideal for high load applications. Wear resistant sheave material, in lightweight, self lubricating polymer, is suitable for use with rope or wire Application: Exit blocks minimise friction in lines passing through the deck or exiting masts and...

Wichard Stainless Steel Single Block 25mm Sheave with Swivel & Clevis Pin Complete range of stainless steel blocks for dinghies.  Lightweight, reliable and good performance.  Available in a wide range of size  and fastening...

Ronstan Series 20 Ball Bearing Exit Block 20mm ball bearing sheave box with single piece housing, stainless steel ball bearings, and an aetal sheave. Features Stainless steel ball bearings for high strength and durability Single formed frame...

Single Sheave Inlet – Outlet Block 21mm x 8mm glass filled acetal sheave running on stainless steel needle bearing. Fastening holes 3/16″ clearance at 50mm centres. Part Number RLY-RM304

Ronstan Series 30 High Load Block, Loop Top Single, loop head. Suitable for use with wire or rope. Ideal for high load applications. Wear resistant sheave material, in lightweight, self lubricating polymer, is suitable for use with rope or wire. Can...

Wichard Stainless Steel Single Block - Sheave 24 - With Shackle & Becket Complete range of stainless steel blocks for dinghies Light weight, reliable and good performance Available in a wide range of size  and fastening systems  For...

Wichard Single Plain Bearing Block 25mm Sheave with Swivel Head Complete range of plain bearing blocks.  Modern design.  Withstand high loads.  Ideal for static operations.  The sheave runs on the stainless steel bush.  Light...