Hi Robert Thanks for the grease tip. I would have fitted normal wheel bearing grease. I will see if I can find what you suggested over here or at least something similar.
On 2014-11-28 10:51, Robert Malterer wrote: > Morning: I retired from the screw machine world some 15 yrs. ago. The > grease we used in the spindles was a "Kluber" brand sinthetic grease. Very > spendy, very good though. The spindles that the grease was used in would go > from 0 to 10,000 RPM and back to 0 approx. twice a minute, 24 hrs. per day, > 5 days a week and had operated over 10 yrs. without any service to the > spindles up to my retirement. These machines were "Star" brand swiss style > screw machines. I know that all the other brands also used the same grease > in their spindles. I remember having to service the spindle from another > larger machine after a power glitch and servo failure and my boss > complaining about the cost of a tube of grease. > It is very common to remove the bearing cup by welding and at my time of > retirement maintaince had a series of non conductive sleeves they would > slide in to prevent spatter and a arc from leaving a buger on the ID. > Before I left MN for AZ I stopped buy the local auto repair shop and they > proudly showed me the better part of a 5 gallon pail full of bearing races > that had been removed with the welding technique. > Seeya > Bob Malterer > > ----- Original Message ----- > From: "Marius Liebenberg" <[email protected]> > To: <[email protected]> > Sent: Thursday, November 27, 2014 9:13 PM > Subject: Re: [Emc-users] Lathe spindle bearing problems > > >> A puller like that would be nice to have but I am afraid that there is >> no gap or any protrusion of the bearing race to grip on. >> On 2014-11-27 22:49, Marcus Bowman wrote: >>> On 27 Nov 2014, at 20:21, Marius Liebenberg wrote: >>> >>>> I will do the weld bead tomorrow and hopefully it will come out without >>>> too much trouble. >>> It's a counsel of perfection, I guess, at this stage, but I would use a >>> puller fitted with very thin lips at right angles to the legs. These are >>> designed to remove bearings from blind holes in car engines or gearboxes. >>> The little lips are hardened and when you tighten the puller it squeezes >>> the lips in behind the bearing, by wedging it into the radius in the >>> outer casing of the bearing (the bit you have stuck in there at the >>> moment). A GOOD QUALITY puller works well, and can get enough grip to >>> ease the bearing off the bottom of the hole and get it out. I have done >>> this once or twice and it is a good solution. My friend has a selection >>> of good pullers for all sorts of awkward jobs like this. >>> >>> At this stage, unless you know someone with a puller like this, welding >>> is probably your only other option. >>> >>> Marcus >>> >>> >>> >>> >>>> On 2014-11-27 19:30, Ed wrote: >>>>> On 11/27/2014 10:52 AM, Marius Liebenberg wrote: >>>>>> So a little bigger tap with a little bigger mallet did the job. The >>>>>> front bearing fell apart and is badly worn. >>>>>> Now the seat is stuck inside the headstock >>>>> To take out a bearing cup I use an arc welder and run a bead of weld >>>>> around the inside of the cup, let it cool down, extract with fingers or >>>>> tap the housing with your mallet. It can be done by heating with an >>>>> oxy-acet torch but you must be fast in, fast heat and fast out. Arc >>>>> works MUCH better. >>>>> >>>>> >>>>>> and the bearing piece is >>>>>> stuck to the shaft and I have no idea how to get it out. >>>>>> >>>>> The bearing race on the shaft is probably best removed by carefully >>>>> grinding through the race in a couple of spots and cracking it with a >>>>> chisel. >>>>> >>>>> Ed. >>>>> >>>>> >>>>> >>>>> ------------------------------------------------------------------------------ >>>>> Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server >>>>> from Actuate! Instantly Supercharge Your Business Reports and >>>>> Dashboards >>>>> with Interactivity, Sharing, Native Excel Exports, App Integration & >>>>> more >>>>> Get technology previously reserved for billion-dollar corporations, >>>>> FREE >>>>> http://pubads.g.doubleclick.net/gampad/clk?id=157005751&iu=/4140/ostg.clktrk >>>>> _______________________________________________ >>>>> Emc-users mailing list >>>>> [email protected] >>>>> https://lists.sourceforge.net/lists/listinfo/emc-users >>>>> >>>> -- >>>> >>>> Regards /Groete >>>> >>>> Marius D. Liebenberg >>>> +27 82 698 3251 >>>> +27 12 743 6064 >>>> QQ 1767394877 >>>> >>>> >>>> ------------------------------------------------------------------------------ >>>> Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server >>>> from Actuate! Instantly Supercharge Your Business Reports and Dashboards >>>> with Interactivity, Sharing, Native Excel Exports, App Integration & >>>> more >>>> Get technology previously reserved for billion-dollar corporations, FREE >>>> http://pubads.g.doubleclick.net/gampad/clk?id=157005751&iu=/4140/ostg.clktrk >>>> _______________________________________________ >>>> Emc-users mailing list >>>> [email protected] >>>> https://lists.sourceforge.net/lists/listinfo/emc-users >>> ------------------------------------------------------------------------------ >>> Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server >>> from Actuate! Instantly Supercharge Your Business Reports and Dashboards >>> with Interactivity, Sharing, Native Excel Exports, App Integration & more >>> Get technology previously reserved for billion-dollar corporations, FREE >>> http://pubads.g.doubleclick.net/gampad/clk?id=157005751&iu=/4140/ostg.clktrk >>> _______________________________________________ >>> Emc-users mailing list >>> [email protected] >>> https://lists.sourceforge.net/lists/listinfo/emc-users >>> >> -- >> >> Regards /Groete >> >> Marius D. Liebenberg >> +27 82 698 3251 >> +27 12 743 6064 >> QQ 1767394877 >> >> >> ------------------------------------------------------------------------------ >> Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server >> from Actuate! Instantly Supercharge Your Business Reports and Dashboards >> with Interactivity, Sharing, Native Excel Exports, App Integration & more >> Get technology previously reserved for billion-dollar corporations, FREE >> http://pubads.g.doubleclick.net/gampad/clk?id=157005751&iu=/4140/ostg.clktrk >> _______________________________________________ >> Emc-users mailing list >> [email protected] >> https://lists.sourceforge.net/lists/listinfo/emc-users >> > > ------------------------------------------------------------------------------ > Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server > from Actuate! Instantly Supercharge Your Business Reports and Dashboards > with Interactivity, Sharing, Native Excel Exports, App Integration & more > Get technology previously reserved for billion-dollar corporations, FREE > http://pubads.g.doubleclick.net/gampad/clk?id=157005751&iu=/4140/ostg.clktrk > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > -- Regards /Groete Marius D. Liebenberg +27 82 698 3251 +27 12 743 6064 QQ 1767394877 ------------------------------------------------------------------------------ Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration & more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
