Shaft Couplers and Isolators

Rick D

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Jun 14, 2008
7,186
Hunter Legend 40.5 Shoreline Marina Long Beach CA
(I had this buried in another post so I'm moving it here:)
I may have to replace my shaft next haul. If so, thinking of a split shaft coupler, namely an R&D, and their flexible coupling. (1994 Hunter 40.5 Yanmar 2300 hours, two blade geared folding prop) Soooo:

  1. Realizing that the coupling ought to be refaced again when the shaft is removed, is there any benefit to the split coupling in your opinion?
  2. If the flexible coupling is used, should I use the ground insert for continuity?
  3. Have you ever used a flexible coupling for a customer's boat, or perhaps a better question, have you ever recommended a flexible coupling for a customer's boat?