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rasmussen



Member Since: 13 Mar 2012
Location: Nice
Posts: 46

France 
Winch, Synthetic rope – fairlead
Maybe a bit daft question. Embarassed

I have seen pictures of the fairlead for winches with synthetic rope on.
Apparently it is not necessary to have rollers on the fairlead?
Is the maximum angle out from the fairlead the same?

To me it is a massive improvement to have a smaller, much lighter and discrete fairlead compare to the classic roller ones.

Can anyone point me in the direction to find some technical literature regarding the differences between the two types of rope “setup” and techniques?

Any comments regarding this are most welcome Thumbs Up

Cheers
Post #154920 11th Jul 2012 6:55am
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leeds



Member Since: 28 Dec 2009
Location: West Yorkshire
Posts: 8581

United Kingdom 
The traditional roller fairlead is used for steel wire rope.

For synthetic ropes aluminium or stainless steel hawse or fairleads are used.

With these types of fairleads there is no danger of the synthetic ropes being 'nipped' in the corners of the rollers when pulling at more acute angles.

Why aluminium and stainless? If you have grit on winch rope etc it will tend to grove the Ali whereas with stainless the grit may be forced into the rope.

For occasional winch use I would use Ali, for competition use when ropes are changed more often stainless.

David Bowyer has lots of winching tips on his website, might be worth spending an hour or so having a good read there.


Brendan
Post #154927 11th Jul 2012 7:24am
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TJ101



Member Since: 30 May 2007
Location: Taunton Somerset
Posts: 3750

Isle Of Man 2015 Defender 110 Puma 2.2 XS CSW Montalcino Red
As Brendan says above

Synthetic ropes do not like the treatment they will get running through a roller fairlead


Stainless (as below) or alloy



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Post #155056 11th Jul 2012 7:53pm
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davew



Member Since: 02 Jan 2012
Location: North Yorkshire
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England 1990 Defender 90 V8 Petrol PU Auto Rioja Red
Stainless lasts forever (ish) whereas aluminium hawse fairleads wear away, especially in the corners.

There is a theory (mainly put forward by people who sell aluminium hawse fairleads) that the aluminium wearing away saves the rope some of the abrasion. Personally I use stainless as I've snapped ropes due to the aluminium fairlead rubbing away and allowing the rope to contact the edge of the winch mount slot.

You can also use hawse fairleads with steel cable but roller fairleads are more common. When I used steel wire on my rear winch I used a steel hawse fairlead. Whereas you can use hawse fairleads with both steel and synthetic ropes, using synthetic with a roller fairlead isn't recommended although BITD when synthetic was first used we used to use roller fairleads - I even had a roller fairlead manufactured using nylon rollers. You just had to be careful when winching at an angle that might pull the rope into the corners.
Post #155120 11th Jul 2012 10:54pm
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leeds



Member Since: 28 Dec 2009
Location: West Yorkshire
Posts: 8581

United Kingdom 
davew wrote:


There is a theory (mainly put forward by people who sell aluminium hawse fairleads) that the aluminium wearing away saves the rope some of the abrasion. Personally I use stainless as I've snapped ropes due to the aluminium fairlead rubbing away and allowing the rope to contact the edge of the winch mount slot.

.



In a previous life before the advent of the www, I used to go caving and there was various bits of research done on SRT (Single Rope Techniques/abseiling and prussiking). Abseiling on ali alloy based rack bars/stainless steel rack frame or ali figure of eight descenders the ali components would wear and wear rate would be much faster if using dirty ropes. If a dirty rope come into contact with the stainless rack frame yes it would mark/abrade the stainless frame.. The ali bars we considered as disposable items and would either swop them around on the frame or replaced them.



SEM, scanning electron microscope techniques were used on dirty ropes which had been washed. Whilst relatively clean the inside of the ropes contained small angular bits of grit and damage on the inside of the ropes could sometimes be seen.

Personally I believe that it is better to have the ali components wear (which can be readily seen) then possible greater damage to the rope.

For competition winching where winch lines are probably replaced more frequently then the leisure winching, yes I can see the need for stainless hawse.

Like a lot of things there is probably not one ideal system to best suit for all people.


Brendan
Post #155150 12th Jul 2012 7:30am
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rasmussen



Member Since: 13 Mar 2012
Location: Nice
Posts: 46

France 
Just want to say thank you for your comments. Very Happy

Really helpful information Thumbs Up

Cheers,
Post #155191 12th Jul 2012 10:41am
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Supacat



Member Since: 16 Oct 2012
Location: West Yorkshire
Posts: 11018

United Kingdom 2013 Defender 110 Puma 2.2 XS DCPU Keswick Green
CABLE TENSIONER ROLLER GUIDE


Never seen one of these in the UK but potentially could help with spooling tension for wire ropes. Anyone ever seen one in operation?

http://baprod.com/shop/towing/wirerope/cable-tensioners-guides/
Post #687376 18th Feb 2018 3:08pm
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