[Tejas@perioimpl]

Originally Posted by Desmosedici

Hi Doc,

Why 3/4" and why not D shackles. I googled the design and found it nearly similar except for the fact that the 3/4" are closer at the ends. Any particular reason? Thanks.

3/4" is basically the diameter of the pin.

Let's talk a bit about shackles.

Here you need to understand working load limit (WLL) which is stamped onto it and the safety margin.

Good quality shackles have a safety margin of 6 times.

So a 3/4" shackle that is rated at 4.75 tons will have a failure point of 6*4.75 = 28.5 tons!!!

The D shackle has two sides straight and is good for straight loads and not good for angular pulls. Also the strap gets compressed a lot in a D shackle.

However, in a bow shackle, the design helps distribute the load when forces are applied at an angle and the strap doesn't bunch up either.

Hope this answers your query?

Here's an image from google image search:



Source according to Google: http://www.beyondrigging.com

[Desmosedici]

Originally Posted by Tejas@perioimpl

3/4" is basically the diameter of the pin.

Let's talk a bit about shackles.

Here you need to understand working load limit (WLL) which is stamped onto it and the safety margin.

Good quality shackles have a safety margin of 6 times.

So a 3/4" shackle that is rated at 4.75 tons will have a failure point of 6*4.75 = 28.5 tons!!!

The D shackle has two sides straight and is good for straight loads and not good for angular pulls. Also the strap gets compressed a lot in a D shackle.

However, in a bow shackle, the design helps distribute the load when forces are applied at an angle and the strap doesn't bunch up either.

Hope this answers your query?

Here's an image from google image search:

Attachment 1451456

Source according to Google: http://www.beyondrigging.com

Thanks Doc. Appreciate the crisp explanation. Thats some very good info that you have shared.

[stuntfreak]

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