Please select your home edition
Edition
upffront 2018 Ronstan shock blocks Leaderboard

Karver's new 3:1 Friction Sheave

by Phil Anniss 21 Aug 01:00 PDT
Karver KF5 3-1 Friction Sheave © Karver

Introduction to Karver's upgraded 3:1 Friction sheave for use with their KF / KSF furling drums.

It's not often that developments in fitting design deliver a significant increase in quality and a reduction in both weight and price - all at the same time. But Karver Systems appears to have achieved the impossible with the new 3:1 Friction Sheave.

Made from HR stainless steel, the Karver 3:1 Friction sheave provides a flexible solution for the connection of the furling drum to deck. With the option of using it in either a 2:1 or 3:1 configuration this simple, robust design provides excellent luff tension control with trouble-free operation and very little maintenance.

Much lighter than the previous version (33% weight saving for the KF5) and now with a quick release, captive pin mechanism, this is a nice development. It improves the usability of this popular performance addition to the standard furling drum.

For more technical details view the Karver friction sheave at upffront.com

Related Articles

Ino-ending - The end of the line?
Simplicity is key with these blocks When it comes to the Ino-block range, the manufacturer firmly believes that simplicity is key, and Upffront tends to agree with them. Posted on 13 Nov A Halyard Swivel, Top Swivel or just a Swivel?
Upffront.com explain the options available There are many types of swivels used on board boats, several of which are mounted on halyards, however, the term "Halyard Swivel" is reserved for one specific application. Posted on 7 Nov How to change the cover on a Cousin Constrictor
A lightweight alternative to traditional metal clutches Created as a lightweight alternative to traditional metal clutches, the Cousin Constrictor© is a great bit of kit for reliably holding rope under load with great longevity when properly maintained. Posted on 30 Oct The Facnor Flatfurl Structural Furler
Keeps the foot of the jib/genoa closer to the deck Facnor Furling Systems are a French manufacturer with over 30 years dedicated to all forms of onboard furling systems for ocean racers and cruising sailors alike. Posted on 24 Oct What makes Superswift rope so super?
Take a close look at this versatile offering from Gottifredi Maffioli Superswift, from leading rope makers Gottifredi Maffioli, is a favourite among performance dinghy sailors and big boat sailors alike. When you take a closer look at the features of this versatile rope, it's not difficult to see why... Posted on 16 Oct One Design PROtect Tapes
A set of cut pieces tailored to your class PROtect Tapes are a broad range of high-quality protection tapes for dinghies, racing, cruising and super yachts. PROtect Tapes provides a pro-active solution to chafe and wear prevention. It enhances performance and ultimately promotes safer sailing. Posted on 10 Oct Practical tips on cruising halyard locks
Bouncing to avoid damage Halyard locks are almost universally accepted in racing circles and are becoming increasingly popular with long distance cruisers, as they recognise the significant benefits. Posted on 2 Oct Baby Karver Furler KF 0.9
The smallest furler manufactured by Karver, for boats under 30ft Launched this year, this is the smallest furler manufactured by Karver. With a Safe Working Load (SWL) of 900kg, it is suitable for small cruisers and sportsboats up to a maximum of 30 ft. Posted on 26 Sep Karver KJ Jammer
Releasable under (low) load combined with the reliability of a high load jammer French hardware manufacturer, Karver has been active in the French offshore sailing scene (IMOCA and offshore multihull) since its inception in 2004. Their reputation is based on developing a range of innovative products. Posted on 18 Sep What is a top down adapter?
A tack swivel is a popular evolution of the top-down furling system The top-down adapter, also known as a tack swivel, is an increasingly popular evolution of the top-down furling system. This technique provides cruisers and racers alike, simplicity, safety and speed for the handling of loose luff sails. Posted on 12 Sep
MBW newsletters (top)
This site and its contents are Copyright © 2019 Sail-World Sail-World USA and/or the original author, photographer etc. All Rights Reserved. Photographs are copyright by law. If you wish to use or buy a photograph contact the photographer directly.
If you have any questions about advertising or editorial then please contact our team. If you encounter any technical issues then please email techsupport@sail-world.com
Terms & Conditions | Privacy Policy