Hi Andy - I've recently bought a couple of Raboesch maintenance free prop shafts and they seem to turn OK.

By the way I replied to your Huntress thread and have PM'd you.

Chris

Hi Andy
It's the seal and needs to be a close fit. Take great care when removing the shaft as any dirt or grit that gets on the shaft will ruin the seal and the bearings.
I have never bought one of their props but for the price I would have expected comprehensive documentation on their correct use and what if any lubrication was recommended.
If you need the correct advice I strongly recommend you ask your supplier or Raboesch directly.
By all accounts they are well made but they are manufactured to close tolerances and need to be treated accordingly.