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<DIV> Davids & Terry</DIV>
<DIV> my limited exposure to leather is that it holds up for a very lo=
ng
time & seeing that many of our performance pianos turn a new set of nice=
ly
fit bushings to a sloppy fit in about a years time leaves me frustrated=
. So
Trix & I are currently finding leather supply & tehcs to work =
with
it to see if this will alleviate this problem. Imho It simply isn't
practical to replace a set of keybushings every year or so.</DIV>
<DIV> I've seen many older Bosy's & Euro pianos with bushing=
at
least 100 years old that were fit right up to a new type tolerance of a few
thous. Really amazing. I remember that Joel & Pris Rapport used a lot of=
leather bushings as well.</DIV>
<DIV> Occasional lubrication would be easy & preferrable to many s=
ets
of bushings & continual sloppy keys</DIV>
<DIV> Dale</DIV>
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style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: blue 2px solid"><=
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=2>My
2cents...<BR><BR>Leather has a very high coefficient friction and leather
bushing are an <BR>absolute disaster unless are liberally treated with
microfine teflon <BR>powder. Without dry lube the key plays a lot ha=
rder
with a sideways <BR>glancing stroke and the bushings wear out and start to=
get
noisy very <BR>quickly.... the same goes for cloth bushings but it is not =
as
critical as <BR>with leather...<BR><BR>You can test this easily by putting=
a
little side pressure on the front key <BR>pin as you move the key up and
down.... It takes a lot more force to move <BR>the key with a little=
side pressure if the bushing has not been treated <BR>with dry
lube...<BR><BR>David Stanwood</FONT></BLOCKQUOTE></DIV>
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