I have bought a Raboesch Prop Shaft, but it does not appear to be very free turning. The shaft is very free turning in the bottom bearing, reasonable through the 'ball race' at the top. It appears that the seal at the top is causin the problem.
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.