Dumore Grinder

Just got a Dumore 1/2 hp "master" model grinder from ebay advertised as "good running condition"...well I guess that means you want to run away from it, since the spindle make a hell of a howl. Anyway the motor seems okay, so maybe its worth fixing. It came with two spindles, both of which have bad bearings. I opened the older one of the two spindles, a model "T", and pressed out the bearings. It seems the bearings are retained on the shaft at each end with a press fit steel collar with a small tapered brass insert, one of the collars cracked during removal. Dumore does not have parts for the older spindles. Finally my questions: 1.) has anyone had one of these apart? 2.) Are the collar/brass rings a standard part? 3.) Anyone have a spindle they want to sell? 4.) The newer spindle, (8/85) has a different construction - can the bearings in this be replaced more easily? 5.) Why does the latter spindle say "do not oil" ?, are the latter ones sealed bearings?

Reply to
oldjag
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Check out the latest issue of the Home Shop machinist... a guy did just what you are trying to do... t he bearings are not standard and he had to make a sleeve. Worked well.

Steve

Reply to
Steve Koschmann

I'm sure that the seller did not mean to mislead you. I'm sure that he was just inept at judging the condition of machine tools.

By the way, who was this seller?

Bob

Reply to
Bob Engelhardt

not the spindles. Found so more info from SOPCO. Seems you need to rebuild with ABEC 7 bearings. Still have not pulled apart, but ABEC 7 bearings seem very expensive...still waiting to hear from the seller.

Reply to
oldjag

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