Anchor Swivel

[ERTF]

Is this type of swivel with a stainless cotter pin trustworthy for long term anchoring?

 

[Mac2]

Short answer-no. Most people have gone to a Crosby shackle that has a working/break load equal to their chain. Most swivels, even the fancy stainless ones, are not rated. This should tell you something. It's not just the pull strength, but the side force that needs to be considered. The swivel shown has a built in failure point when it comes to side loading.

 

[TJM]

When you use the shackle, do NOT forget to wire tie the shackle pin to prevent it from loosening. This is called "seizing". Use Stainless Steel or Monel (nickle) wire only. The Shackle pin goes thru the slot in the shank of the anchor, just in case people did not know this.

 

[Hook and a screw]

I saw on a YouTube three links of anchor chain prior to the swivel reduces the concern of side loading on the swivel.

 

[Mac2]

When you use the shackle, do NOT forget to wire tie the shackle pin to prevent it from loosening. This is called "seizing". Use Stainless Steel or Monel (nickle) wire only. The Shackle pin goes thru the slot in the shank of the anchor, just in case people did not know this.

Not true. The Shackle pin goes through the rode/chain link. This allows the shackle to rotate on the shank, so the shackle is not side loaded. People will use two shackles if they can't get the shackle pin through the chain.

 

[psneeld]

I saw on a YouTube three links of anchor chain prior to the swivel reduces the concern of side loading on the swivel.

Heard the same and agree..just don't like having to make it more complicated.... but that's just me.

 

[psneeld]

Not true. The Shackle pin goes through the rode/chain link. This allows the shackle to rotate on the shank, so the shackle is not side loaded. People will use two shackles if they can't get the shackle pin through the chain.

Agree....

 

[tozz]

Not true. The Shackle pin goes through the rode/chain link. This allows the shackle to rotate on the shank, so the shackle is not side loaded. People will use two shackles if they can't get the shackle pin through the chain.

I have two shackles back to back reduce pin size to get through the chain but the recommendation I've seen is back to back should be crown to crown. So both shank and chain link have the pins through them. What's the best way to configure back to back shackles?

TIA
-tozz

 

[psneeld]

At some point, it really doesn't matter if you can easily pull the chain past 90 degrees several times after twisting the chain several times on both sides of the shank. You are just trying to see if the chain will unset the anchor by reversing the pull or bend the shank because the shackle is wedged against it.

No matter what the rig, it's possible to bend the shank in some situations...at least that's what the hundreds of bent anchors at the salvage place I worked at suggested to me and the reports from some of their owners.

 

[rgano]

I find the Mantus swivel to be quite acceptable here.