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 >> Emc-users@lists.sourceforge.net >> 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 > Emc-users@lists.sourceforge.net > 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 Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
