Antal Low Friction RingView all products in Low Friction Rings & Ferrules

Binnacle.com #:  26690
Antal Low Friction Ring

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Simple and lightweight rings have revolutionized the way fixed and running rigging is designed on sailboats. They have extremely low friction, and their simplicity cuts cost and maintenance. A universal solution for barber haulers, lazy jacks and more. Use on a backstay bridle instead of a block or for 8:1 control systems.
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Binnacle.com:   #26690
Brand:  Antal Italy
From:   US$18.20   to  US$63.95 
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Antal Low Friction Ring 

What are they for?

Rings replace blocks. And not just furling lead blocks, but vang cascades, too, backstays, or jib sheet leads. Since their first commercialization, in 2007, under the name of Low Friction Rings, they literally invaded the sailing market. Sailors went low tech gear, choosing simple, non-moving, unbreakable products over standard sheaves.
 
How much can it hold?

A lot. More than needed. The load isn't a problem for Rings, friction, however, maybe. Antal gives a safe working load for Rings that corresponds to a situation where the aluminum structure holds but undergoes a slight deformation. So they don't break. Nor do they ever lose their low friction property.
 
Do we have to worry about friction?

Friction gives higher values on rings than on sheaves, but how much higher? Of course, it depends on two main points: the deflection angle (180° gives higher friction than 90°) and the control system (more rings comes with more friction). It goes without saying it also depends on the Ring quality and the line material. 
 
Focusing on the first two elements (angle and number) allows us to shed some light on the complicated matter of friction. First: Rings are not suitable for all maneuvers. Second: You choose rings in cases where a loss in friction is acceptable in favor of some other benefit; weight, cost, size, durability, or resistance.
 
Where can Rings go?

Though it's not easy to determine how much more convenient it is to use blocks versus rings, there are several cases where sailors have thought that loads allow the use of rings. This also depends on the fact that some systems on sailboats are trimmed less regularly than others. Or maybe they are adjusted before tension kicks in, or maybe the load isn't in fact that high. 
 
Here is a list of possible uses: vang cascades, gennaker tacks, jib sheet leads, lazy jacks, backstays, reefing points, and any small deflection angle. (Of course, this depends also on the size of the boat! But 70' Ocean racing boats use rings.....) So why not use rings then?
 
Antal Low Friction Ring Technical Spec's

ATTRIBUTE 5 mm 7 mm 10 mm 14 mm 20 mm 28 mm
Weight 3 gr 5 gr 12 gr 44 gr 120 gr 338 gr
B 5 mm 7 mm 10 mm 14 mm 20 mm 28 mm
C 7 mm 10 mm 14 mm 20 mm 28 mm 38 mm
SWL 400 kg 800 kg 1600 kg 3200 kg 6400 kg 10 ton
Material Aluminum Aluminum Aluminum Aluminum Aluminum  Aluminum
T   12 mm 15 mm 22 mm 31 mm 44 mm
D 18 mm 25 mm 35 mm 50 mm 70 mm 99 mm

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A. We ship from Halifax, Nova Scotia. Delivery time will be 3 - 7 business days. Northeast will be 3 - 4 days and Southwest and Pacific coast will be 7 business days. Most other areas are 5 business days.

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Q. Will I be charged any sales taxes?
A. No. We are located in Canada and we are not required to charge US state sales taxes.

Q. Do I have to pay any customs charges or duties?
A. No. Orders under $800 do not receive any customs charges by US Customs. On Orders over $800 Binnacle.com pays the charges - You will not be charged anything for duties or customs brokerage fees.

Money Back Guarantee
Guarantee You may return your purchase to us (with a return authorization number - use this form) within 30 days and we will refund the purchase price of the product. Items which are cut to order (rope, wire etc), software, chart cards and printed materials (paper charts, books) are not returnable.

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