Please select your home edition
Edition
V-DRY-X

Karver's new 3:1 Friction Sheave

by Phil Anniss 21 Aug 2019 01:00 PDT
Karver KF5 3-1 Friction Sheave © Karve

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

Soft shackles are a win-win solution
Upffront look at their use across multiple applications Soft shackles have surely penetrated the mainstream sailing in recent years. They are a popular alternative to traditional metal shackles. Made from single braid Dyneema® soft shackles offer several advantages over their metal counterparts. Posted on 8 Feb 2024 Vakaros Atlas 2 - sailing with ultimate precision
A careful review by the experts at upffront.com Recently upffront.com have introduced the latest Vakaros Atlas 2 sailing instrument to the shop and compared it in a review of other top sailing instruments. Posted on 25 Jan 2024 Sailing instruments from Velocitek/Sailmon/Vakaros
An introduction and comparison from Upffront.com The term 'sailing instrument' is broadly applicable to just about any onboard system with a sensor and a readout. While wired instrument systems are common, in this blog we discuss portable GPS sailing instruments from Velocitek, Sailmon and Vakaros. Posted on 11 Jan 2024 Introducing Ronstan Orbit Winches
QuickTrim feature allows line to be eased without removing handle or line Ronstan have just launched an all new range of Aluminium Self-tailing Orbit Winches in three sizes plus an innovative new QuickTrim feature which allows the line to be eased without removing the handle or the line from the self-tailer. Posted on 7 Jun 2023 Performance Code Zero Furlers
Options from KZ Racefurlers put under the spotlight We are pleased to introduce KZ Racefurlers to the upffront.com website. Racing sailors will need little introduction, as KZ have been gracing the bows of grand prix race boats for almost 30 years. Posted on 28 Jan 2023 How to Choose a Spinlock Deckvest
The main consideration is usage and application Lifejacket pioneers Spinlock are renowned for their sleek, comfortable to wear, high-spec lifejackets. In a previous article, we introduced the full range of Deckvests and took a look at the features and benefits of each. Posted on 16 Sep 2021 Best Sailing Boat Blocks in 2021
Review covers soft attach, snatch looper, open ring, beckets and more In this article we take a quick look at what is new and/or interesting in the sailing block world in 2021. Harken continue to develop soft attach blocks. Morfrac Systems are developing their product line to include becket versions of their blocks. Posted on 7 Sep 2021 Make Waves with nke Marine Electronics
Innovative systems for racing or cruising It's the age of information, and global technological advancements have revolutionised our lives and industries alike. As with many others, the sailing industry has benefitted from the introduction of marine electronics that make it easier. Posted on 23 Nov 2018 Introduction to Core Fibres in Modern Ropes
The majority are polyester or Dyneema There are many core materials used in rope making (e.g. Vectran®, PBO, polypropylene, hemp, nylon etc) but the vast majority of modern ropes are based on a polyester, or increasingly, a Dyneema® core. Get a basic introduction here. Posted on 9 Nov 2018 High Performance, Low Hassle Family Cruising
The radical - but not too radical - 39BEN How do you design a cruising boat that's fast enough to get your competitive juices flowing, but without scaring the family? That's been the challenge for Alex Vrolijk, who has drawn the lines for the radical - but not too radical - 39BEN. Posted on 26 Oct 2018
Zhik 2024 DecemberPalm Beach Motor YachtsNorth Sails Loft 57 Podcast
This site and its contents are Copyright © 2025 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