[pianotech] Key balance rebushing

David Love davidlovepianos at comcast.net
Thu Oct 21 21:53:33 MDT 2010


There very well may be a difference between folded over (or under) and not
having a fold in terms of wear and longevity, the fold giving more stability
to the bushing.  I'm inclined to believe that having a fold is better and
when replacing bushings that are originally folded under, I fold them over
rather than just insert and cut flush to the top of the mortise as some
people do.  

 

David Love

www.davidlovepianos.com

 

From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of William Monroe
Sent: Thursday, October 21, 2010 8:09 PM
To: limhseng at gmail.com; pianotech at ptg.org
Subject: Re: [pianotech] Key balance rebushing

 

Lim,

 

That's because there is no functional difference.  Some will say there is,
and some will say there isn't, and often will say so very strongly.
Personally, I see no advantage to pulling through the side slot, other than
to mimic what was there before.  My understanding is that it was there
before because it expedited the manufacturing process, that's all.  There
are plenty enough manufacturers that do not have bushing cloth going through
a side window in the button, and neither have they experienced any notable
failure rates (bushings coming loose because of repeated removal
from/reinstallation to balance rail pins) to cause me to think it a lesser
quality bushing job.  It also would cost you a bit more time, and as I said,
would not yield any functional advantage.

 

In the end, bush either way, it will work the same.

 

William R. Monroe

 

 

 

2010/10/21 <limhseng at gmail.com>

Hi List
Have a basic query to ask.
When rebushing balance key hole, is it necessary to pull the felt through
the key button side windows? I have done both ways and I can't tell the
difference.
Thanks from Lim
Sent from my BlackBerry Wireless Handheld
Powered by Gee! from StarHub

 

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