D rings/shackles
I know Fastenal sells different brands that have different WLL. Click here: http://www.fastenal.com/web/products...99837671&Nty=0
...and sort by "Working Load Limit".
...and sort by "Working Load Limit".
I hope you're right. I mean.....the possibility of your head cracked open and your brains splattered out all over everything.....if that appeals to you, then by all means, get the wrong shackles. ...and I'm not sure the ones you're talking about are wrong, but it doesn't sound like you're 100% sure either. With the possibility of brains splatterin, I'd wanna be DAMN sure. But that's just me.
So if you truly believe what you wrote above, then getting hardware at sources like the one I first posted is a better route to remove doubt because they at least provide some rating numbers for their products.
-Derek
I thought that this would be an easy question but it took a little research. Most of the web sites only list the WWL (working load limit). That is what the d ring/clevis what ever you want to call them is designed to lift pull etc. (some are not rated for lifting by the manufacturer). The break strength for most of the ones that I could find a listing for was about 5 times the WWL. So a 5 ton shackle (10000#s) will fail at 50,000#s. Crosby has some good info in their catalog. So if you take a 9000# winch and use a pulley to get a 18000# pull you will have a problem with the 3 ½ ton (7000#) shackle that is commonly sold to us to connect everything. This is because the WWL is only 7000#, what is really needed is a WWL of 9 tons (18000#) for this kind of use.
I have had some training at work in this area; I am no expert on the subject, so if someone has some real expertise in these areas please fill us in.
I have had some training at work in this area; I am no expert on the subject, so if someone has some real expertise in these areas please fill us in.
I talked to the tech guy at Superwinch. He told me that the only D rings that they sell have a WWL of 9500 pounds. He said that they sell them for all their winches all over the world and that they have never had any problems with them. I probably am going to buy the ones from tractor supply less money and a higher WWL.


