Re: Ball bearings

• To: tesla-at-pupman-dot-com
• Subject: Re: Ball bearings
• From: "Richard Staron" <rstaron-at-aracnet-dot-net> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)
• Date: Fri, 18 Jun 1999 16:58:21 -0600
• Approved: twftesla-at-uswest-dot-net
• Delivered-To: fixup-tesla-at-pupman-dot-com-at-fixme

Hmmm......not anealled yet?

Well one thing that you must make sure is that the ball bearing must be
heated
right through.  It took me about 5-6 minutes of direct heat using a propane
torch
to heat the ball to cherry red.  I then continued to apply heat for another
2-3 minutes
and then let the ball cool off.  Please keep in mind that these were 3/4" in
diam
and anything larger would surely take much longer...how much longer is a
matter
of trial and error.....but isn't that what make a hobby interesting?

Yes, the balls did tend to exhibit a bit of flaking but I had no problems
drilling a hole
into the center of the ball using standard high speed steel drill bits.  I
used a lathe to
hold the ball while I drilled it.

Please contact me if you would like to see the results of the final product
after it was
drilled and polished up at     rstaron-at-aracnet-dot-net

Richard - VE3FAC

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