Replace the bearing is the easiest and the right thing to do. You want an
airplane
you feel great about in every building aspect when you hold short of the runway
for your first flight, and many years ahead.
Best,
Christoph Both
#223 Wolfville, Nova Scotia, Canada
-----Original Message-----
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com] On Behalf Of Andrew Sarangan
Sent: Friday, December 09, 2011 10:23 AM
Subject: Europa-List: Rear tufnol bearings
Fellow europa builders:
I have a question regarding the rear tufnol bearings for the control
tube. Unwittingly I chamfered the rear bearing's hole, thinking that
it had to be seated against the flange like the front bearings. Then I
realized the flange does not sit flush against the rear bearings like
the front ones. There is no major issue here, except the chamfering
reduces the contact area with the tube. My guess is the contact area
is reduced by at most 25%, possibly less. It doesn't seem to have any
adverse effects or play right now, but I am concerned if this might
get worse with wear. I haven't bonded these bearings in place, so
right now it would be a trivial task to replace them. After bonding,
it would be nearly impossible. I asked the Europa office to send me
some extra bearings, but I have not heard anything back. I was
wondering what your thoughts are, and if this is worth worrying about.
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