What is this on the photo? A cutlass bearing?

[cmedsailor]

The two pitcures attached (I have borrowed them from this site; from the propeller test carried out some years ago) show this strange thing attached at the shaft tube of that Beneteau. Does anybody knows what that is? It's certainly not the usual rubber cutlass bearing that Beneteaus usually have (also shown).

 

[Tranona]

That is the block for a Stripper rope cutter. Clamps around the tube and the V in the block locates the fixed cutter. The boat in question was a timeshare boat fitted with a rope cutter - like many Bennys in UK.

The stern tube bearing is still there, inside the tube.

 

[sailorman]

looks like a so called cutlass bearing as fitted to Janeaue (Sp)

 

[Neil_Y]

It could be a shaft bearing made from one of the more recent materials.

Difficult to tell which one without clearer pictures, rubber is a lot less common than it was five or ten years ago, new builders as well as refit engineers are now using other materials in many cases.

 

[KenMcCulloch]

Not cutlass, cutless....

Not cutlass as in sword, cutless as in less prone to being cut or scored by suspended particles in the water.

 

[VicS]

Not cutlass as in sword, cutless as in less prone to being cut or scored by suspended particles in the water.

Not that simple.
"Cutless" is Duramax Marine's registered name name for their water lubricated rubber bearings.

Not all the water lubricated rubber bearings are made by Duramax Marine and cannot therefore be called "Cutless"
Other make are usually referred to as cutlass.

BTW the right hand picture in the OPs post is a typical water lubricated bearing ... Cutless® or cutlass, who knows?

My guess is that Tranona will be right about the gubbins in the other pictures ... he usually is.

 

[Heckler]

Not that simple.
"Cutless" is Duramax Marine's registered name name for their water lubricated rubber bearings.

Not all the water lubricated rubber bearings are made by Duramax Marine and cannot therefore be called "Cutless"
Other make are usually referred to as cutlass.

BTW the right hand picture in the OPs post is a typical water lubricated bearing ... Cutless® or cutlass, who knows?

My guess is that Tranona will be right about the gubbins in the other pictures ... he usually is.

He is!
Stu

 

[snooks]

It's the shaft side of a rope cutter....the rope cutter was removed for the test of folding and feathering props.

The cutter has a clamp around the cutlass bearing which sticks out of the shaft skeg