Guest Posted January 7, 2011 Share Posted January 7, 2011 So I have a lot of movement at the end of the prop shaft where it exits the hull. It currently has some kind of teflon/plastic bush that the shaft goes through. This is like a 25mm tube about 100mm long and 3-4mm thick. I got told nylon is no good because it swells up and binds on the shaft. I have removed old bush. Where to buy a replacement piece? Whats better? Thanks skins Link to post Share on other sites
Atom Ant 0 Posted January 7, 2011 Share Posted January 7, 2011 I know Wheels will be able to jump in here and offer you expert advice, but I have a question for you. Does the shaft go through a strut further aft? Link to post Share on other sites
SloopJohnB 322 Posted January 7, 2011 Share Posted January 7, 2011 Orkot is one of the best. Link to post Share on other sites
Guest Posted January 7, 2011 Share Posted January 7, 2011 it goes through a two metre shaft tube that has a gland with lip seals inside the boat then heads through the hull in the shaft tube. where it exits the hull the shaft tube continues probably 600mm and that is supported by a strut type setup which the shaft exits from. That is where the bush sits inside. Where do I get Orcot? what would you expect to pay for 250mm. Link to post Share on other sites
TimW 1 Posted January 7, 2011 Share Posted January 7, 2011 Phone Russell he will know the best material to use. Either Orkot (or Tufcot) or possibly CJ bearing material may be better. Hall has stock of CJ material, or try Macplas (Grant McCartney) 021-506 407. Link to post Share on other sites
wheels 543 Posted January 7, 2011 Share Posted January 7, 2011 Hi Skins. It won't be teflon. The bearings are a specialised material and are designed to be lubricated by the water. There is quite a range of wear alowed and you certainly will be able to move the shaft. So the bearing may actualy be OK. When fitted new, generally the bearing would be machined to have a clearance fit of about 0.2mm and then you add a little determined by the diameter of the shaft. It is calculated at 0.02 x diameter and that is then added to the clearance measurement. However, don't take that as gospel for all materials, because there are many new ones now and those figures will not apply for all of them. The supplier will be able to help you with that. Now sometimes, the stern bearing comes already fitted into a Bronze outer sleeve. So it is not just the "plastic" that gets replaced sometimes. Henleys are another to add to the suggestions already given. And you will need a bearing puller to remove the thing as well. Link to post Share on other sites
Guest Posted January 7, 2011 Share Posted January 7, 2011 thanks guys. I think I'll run with the orcot sounds like it will be all good. the old one has been removed already. Link to post Share on other sites
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