Synthetic winchline and snatch blocks...

[JohnnyS]

I just bought a new winch, Warn 9.5 XPs, and need some eductaion about using synthetic line with snatch blocks.
I've had/have several M12000s but all of them use wire.
Can I use my Warn (I have several) snatch blocks with my new winch?
Should I polish them to remove any burrs?
What is the best snatch block for use with synthetic?
Thanks!!

 

[opie]

Any block can be used with synthetic provided...

1) The sheave has no burrs.
2) The groove in the sheave is sized appropriately for the diameter rope being used.
3) Synthetic line likes an 8:1 sheave diameter. So 3/8 needs a 4" sheave.

No need to "polish" the groove, just make sure its smooth. Also, the tighter the tolerance between the sheave and side plates the better. Large gaps here lend themselves to rope eaters.

 

[Eventhough]

Also look at the groove in the sheave/pulley. Make sure it is more of a U shape and not a V shape with a sharp bottom. A V shape with too much of a shape bottom (bottom of the 'V') will have a tendency to distort the line and not cradle it like a U would.

 

[Master-Pull]

I agree with everything Opie has said. I would file the burrs down and remove any sharp edges you can find. The smoother it is and the tighter the tolerances are the happier the synthetic rope will be!

-Alex

 

[BTAI]

Agreed to all above; check out our snatch block. The sheave is machined and not cast like alot of them on the market. This was done to help prolong and prevent your costly synethic rope from any damages. Our block is a commerical grade and made in the USA.

Bailey's Snatch Block www.baileystowinginc.com.

They are $69.99 plus shipping ($10) anywhere in US; if you purchase 4 or more they are $63.99 each.

Let me know if you have any questions;

Susan Bailey
Bailey's Towing Accessories,
919-562-2984
or susanbailey@baileystowinginc.com

 

[JohnnyS]

Thanks for all the input!
Does anyone sell just the U shaped sheaves (I have several V shaped Warn snatch blocks I wuld like to convert)?

 

[Antichrist]

Agreed to all above; check out our snatch block.

There are vendors here who actually post useful information in the technical forums without overtly trying to make a sale.
Your sales spam is tiresome and I've decided I'll never purchase anything from Bailey's Towing.

 

[BTAI]

I am so sorry that you feel that way; I find that when I post something or provide education we have learned from our experiences that people always tend to come back and ask for more information. It is much easier and more convienient to provide everything I can upfront.

 

[Antichrist]

I find that when I post something or provide education

Nice theory. But of your 22 posts in technical sections only 2 weren't specifically "education" about products you're selling, and those 2 were in threads you started to advertise a product you sell.

Edit to add: http://www.expeditionportal.com/forum/threads/6383-Forum-Rules-READ-BEFORE-POSTING
I read this and it's why I don't sell things I make, because I can't afford to be a sponsor.

 

[opie]

Also look at the groove in the sheave/pulley. Make sure it is more of a U shape and not a V shape with a sharp bottom. A V shape with too much of a shape bottom (bottom of the 'V') will have a tendency to distort the line and not cradle it like a U would.

More of an issue with wire rope than synthetic rope. Synthetic is pliable enough no harm or derate will be imparted to the line.

 

[Eventhough]

More of an issue with wire rope than synthetic rope. Synthetic is pliable enough no harm or derate will be imparted to the line.

I have seen less expensive blocks that have a very deep groove that would not be good to pull some synthetic line across. If I recall correctly the Samson literature even states such.

 

[86tuning]

Thanks for all the input!
Does anyone sell just the U shaped sheaves (I have several V shaped Warn snatch blocks I wuld like to convert)?

find a local machine shop and have them modify the sheave for you? Or take it to your local trades training school and ask them? They'll often do machine work for free/cheap. But the turn around time is forever and a day

 

[HillbillyfromAL]

FWIW the ARB is U shaped, and I believe so is the Warn and Smittybilt on the cheap side. As for the people worrying about it getting caught if you rig it properly it will stay in the groove. All you need to do is keep tension on it. If the line gets slack in it you need to check it before continuing to winch.

 

[Hill Bill E.]

FWIW the ARB is U shaped, and I believe so is the Warn and Smittybilt on the cheap side. As for the people worrying about it getting caught if you rig it properly it will stay in the groove. All you need to do is keep tension on it. If the line gets slack in it you need to check it before continuing to winch.

Which is good advice for either wire or synthetic rope.

I have a Master Pull one I got with the recovery kit, (made for use with synthetic rope) very beefy and well made. Big "U" and tight side clearances.

 

[Eventhough]

IIRC the more expensive ARB (lightweight) is U shaped and the less expensive is a bit more V shaped but still not too bad. I have a Tractor Supply block floating around the shop and I checked it and it is U shaped. A little V won't be horrible but you don't want a steep V like one made for smaller rope like on an ATV (1/4") and then smush truck line (3/8") into it.