On Tuesday 03 September 2013 05:14:30 andy pugh did opine: > On 3 September 2013 08:24, Steve Blackmore <st...@pilotltd.net> wrote: > > In practice it worked well - if it's working - leave it alone, the odd > > splash of oil is part of the experience. > > I have tried re-greasing to see if it helps. > The problem is that it is more than the odd splash, it will be nothing > at all for ages then it reaches some limit and gloops out all over the > place. > Admittedly this wouldn't be a huge problem normally, especially > running coolant, it's a nuisance when working with wood as I am at the > moment. > > I don't think there is room inside the bolt circle for any sort of lip > seal though, and I am rather wary of Gene's idea of an O-ring, I can > see it managing to pull out a bight and tie itself in a knot.
I think you envision the o-ring riding the OD of the spindle, I wasn't. I was imagining a plate, possible bolted to the existing retainer plate by drilling and tapping in between the bolt holes it now has, with a groove for the o-ring in the top face of the seal carrier plate, possibly using the seals OD as the ID wall of the groove, such that you were compressing the o-ring against the bottom face of the bearing retainer. No sliding contact involved. If because the OD of the seal puts it on the retainers bolt circle, then make the seal plate enough bigger so that the o-ring could be located outside the bolt circle. But thats assuming cap screws buried in the bearing retainer, which may not be the case. That just serves to make the seal holders machining more complex and maybe thicker if you have to machine another bolt head clearance groove too. The seal would be a normal lip type seal sized to fit the spindles OD. A 6 pack of 3mm bolts should hold it till the universe runs down. And would be easily removed should access to the bearing be needed many years from now. Total loss is a balancing act, because of the potential for carrying contaminants in as you add what should be clean oil always exists. Throwing oil on the wood is not nice at all. You can't put a finish on it as every drop is an 'eye' the finish runs away from. Sometimes you can wash it clean enough with acetone, but if the oil has any silicon content, the piece is campfire wood. Putting 5 to 10 buck a bd ft cherry or maple in the fire isn't good use of the resource. :) Cheers, Gene -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) My web page: <http://coyoteden.dyndns-free.com:85/gene> is up! My views <http://www.armchairpatriot.com/What%20Has%20America%20Become.shtml> You may be gone tomorrow, but that doesn't mean that you weren't here today. A pen in the hand of this president is far more dangerous than 200 million guns in the hands of law-abiding citizens. ------------------------------------------------------------------------------ Learn the latest--Visual Studio 2012, SharePoint 2013, SQL 2012, more! Discover the easy way to master current and previous Microsoft technologies and advance your career. Get an incredible 1,500+ hours of step-by-step tutorial videos with LearnDevNow. Subscribe today and save! http://pubads.g.doubleclick.net/gampad/clk?id=58040911&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
