RE: worn spline fix???

Tim Stiffy (tstiffy(at)pulsenet.com)
Mon, 28 Dec 98 13:57:51 PST


Scott, I thought about using something like J-B Weld but didn't think it would t= ake=20 the pressure. I'm not familiar with this epoxy. If it is removable at low= =20 temperature, would the heat of the bearings and braking effect the bond? = How=20 thin a coating could be applied? Might be worth looking into.

Tim ---------------Original Message--------------- Here=B9s a long-shot idea that might serve to quite splined=20 hub clunks and maybe extend their service lives. Be=20 forewarned that I have not actually tired this and cannot=20 predict what mechanical or safety concerns resulting from=20 this hair brained idea may ensue...

Here=B9s the idea: Using a two part epoxy system such=20 Gougeon=B9s West System, create a sufficiently thickened=20 mixture (epoxy and high density filler) to fill the voids=20 between the worn splines. Their 404 High Density filler is=20 designed for high cyclic loading of bonded hardware and has=20 been extensively proven in marine applications where=20 hardware is subject to substantial shock, shear and=20 compression loading. With proper preparation, epoxy will=20 bond to metals. Obviously, it would not be desirable to=20 permanently bond the wheels to the splined hubs thus a=20 release agent (wax) would need to be used on one of the=20 mating surfaces. If the idea doesn=B9t work, no permanent harm=20 (to the splines) is done as removal of the hardened epoxy=20 mix is easy with a low temperature propane torch. Extensive=20 technical data and application information is available from=20 Gougeon=B9s Technical Manual and Product Guide if anyone would=20 like to pursue this...

OK engineers! Let the hole shooting begin!

Scott Donnelly Series V - clunking hubs, awaiting retrofit bolts-ons and=20 Minilites

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