<DIV>I know that the flange bushing cloth that they sell in strips has adhesive on one side and what certainly looks like graphite on the other. V T <pianovt@yahoo.com> wrote: <BLOCKQUOTE class=replbq style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid"> That puzzles me too, and that's why I wrote to them. In looking at new Renner parts I can clearly see that some liquid was applied to the felt bushings. There is a bit of red color bleeding out into the surrounding wood, and I clearly see some dark stuff on the felt as well. Vladan >Doesn't Renner have graphite in their bushings? Avery At 02:53 PM 8/28/04, you wrote: >Hello Ryan and the List > >This is an excerpt from a letter I sent to Renner in >Germany: > >"I wonder if you could let me know about any adverse >effects of using the "Protek" brand lubricant on the >center bushings of your hammer shanks. It is a fairly >common practice in the U.S. to put a few drops of this >lubricant on the center bushing felt while preparing >a new shank/flange for installation and while sorting >the shanks for center bushing friction..." > >And here is the relevant part of their response: > >"Renner does not treat the center bushings. >To our knowledge there are no chemical reactions or >adverse effects when center bushings are treated. >Therefore, this may be done, there is nothing to say >against the treatment with a lubricant..." > >Vladan > >==================================== > >List, > This general discussion on friction and factory >set-up of weighting leads me to wonder what >manufacturers pre-lubricate their centers ( beyond the >natural lanolin ) so that weight and leverage are the >prime aspects contributing to the "touch", and to >inhibit future wear. > I would also like to get opinions on favored >center pin lubricants. > Thump _______________________________ Do you Yahoo!? Win 1 of 4,000 free domain names from Yahoo! Enter now. http://promotions.yahoo.com/goldrush _______________________________________________ pianotech list info: https://www.moypiano.com/resources/#archives </BLOCKQUOTE></DIV> Ryan Sowers, RPT Puget Sound Chapter Pianova Piano Service Olympia, WA <hr size=1>Do you Yahoo!? <a href="http://us.rd.yahoo.com/mail_us/taglines/100/*http://promotions.yahoo.com/new_mail/static/efficiency.html">New and Improved Yahoo! Mail</a> - 100MB free storage!