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S&S Swan General - One or Two cutlass bearings?
22 February 2019 - 13:20
Join Date: 10 August 2018
Posts: 5

One or Two cutlass bearings?

One of my boat building friends as inquired about whether I have one or two cutlass bearings on our Swan 57.

I only have one - in the P-strut, and to my knowledge it doesn't appear that there ever was another. He was quite adamant that I have two for obvious stability reasons, but is there a maximum clearance between coupling and P-strut to encourage or insist on a second bearing in the stern tube? 


23 February 2019 - 11:36
Join Date: 02 January 2008
Posts: 1547

Dear Swanning Around

The original arrangement has one Cutlass bearing in the strut as you say. 
- Do you experience shaft vibration problems?
- If the engine has been replaced, what is the free shaft length, diameter and maximum rpm now? Is there a flexible coupling between shaft flange and reduction gear?
Kind regards

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