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Post by Badger Birch on Mar 10, 2007 23:11:32 GMT 1
I have been making plastic stern bearings for Vegas for the last 8 years made out of "Oilon" or "Nyloil" which is an oil-impregnated nylon. Only problem I have found is the 2% absorbtion.
I have contacted Vesconite in South Africa and they are sending me a length of their bearing material with a quoted absorbtion of between 0.004 - 0.007% Does anyone have any experience of this material "Vesconite" and "Vesconite Lube"??
Cheers Steve B
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Post by oldsalt on Mar 10, 2007 23:22:47 GMT 1
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Post by jimbuoy on Mar 12, 2007 10:51:28 GMT 1
I have been making plastic stern bearings for Vegas for the last 8 years made out of "Oilon" or "Nyloil" which is an oil-impregnated nylon. Only problem I have found is the 2% absorbtion. I have contacted Vesconite in South Africa and they are sending me a length of their bearing material with a quoted absorbtion of between 0.004 - 0.007% Does anyone have any experience of this material "Vesconite" and "Vesconite Lube"?? Cheers Steve B Hi Steve... this is interesting for a newbie like me... I understand about the Nylon being impregnated with oil for obvious reasons... but what is this % absorbtion you quote? Jim |
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Post by Badger Birch on Mar 12, 2007 11:01:44 GMT 1
Plastic can absorb water and other liquids. If you make the stern bearing as a good fit then launch, the bearing will absorb water and swell in size. As you can guess the bearing will become too tight and can seize onto the shaft. Hopefully this new material will enable me to produce the bearings in the correct size without any alteration to try and second-guess what teh absorbtion will actually be. Hope this explains. Will keep you informed of its suitability after testing.
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Post by oldsalt on Mar 12, 2007 12:54:46 GMT 1
Steve.
Have you any experience of the Railko product I have some I can send you if you wish.
About 1&3/4ins Dia.
Cheers David.
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Post by oldsalt on Mar 13, 2007 20:21:29 GMT 1
Steve.
I have put a peace of Railko in the post to you today.
I am not to sure of it's spec though.
Cheers David.
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Post by Badger Birch on Mar 14, 2007 11:29:08 GMT 1
Thanks Dave, I'll let you know how I get on. Again, many thanks.
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Post by oldsalt on Mar 14, 2007 23:31:24 GMT 1
Steve.
I understand the material I sent you is water lubed and best suited for stern tube outer end and out rigger P brackets.
Cheers David.
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Post by Badger Birch on Mar 15, 2007 10:11:57 GMT 1
Hi Dave. It arrived today, have taken it to my CNC guy and we will make a bearing and then test it for absorbtion over a period then install for a year test.
Again many thanks
Steve
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