I tried making sintered bronze bearings when I started machining, maybe 35
years ago now. Possibly because of less-than-adequate machining technique, I
found that sintered bronze produced greater friction on the mandrel shaft than
did plain brass. I consequently continue to use brass and have
There are specific cutter angle recommendations for machining stintered
bronze and I do not have them readily at hand. Having this info is a
requirement for DIY bearings as you are actually attempting to cleanly
cut each very small ball without smearing it.
On 01/29/2013 03:15 PM, Don Mayer
I want to thank everyone who expressed interest in the Edison bearing. I've
received enough request that will keep me busy for several weeks. So I'm
sorry I can't make the offer free anymore.
One question is why make one in the first place?
A collector once said to me years ago; one of the
[mailto:phono-l-boun...@oldcrank.org] On
Behalf Of Randy Larson
Sent: Monday, January 28, 2013 11:48 AM
To: Antique Phonograph List
Subject: [Phono-L] Edison Bearing
I want to thank everyone who expressed interest in the Edison bearing. I've
received enough request that will keep me busy for several
-
From: phono-l-boun...@oldcrank.org [mailto:phono-l-boun...@oldcrank.org]
On
Behalf Of Randy Larson
Sent: Monday, January 28, 2013 11:48 AM
To: Antique Phonograph List
Subject: [Phono-L] Edison Bearing
I want to thank everyone who expressed interest in the Edison bearing. I've
received enough
Sintered bronze is what is usually used as replacement mandrel bearings and
they do use it in electric motors too.I've been using multiweight
automotive oil lately I have some 0-20 synthetic that seems pretty nice.
Ron
-Original Message-
From: phono-l-boun...@oldcrank.org
PM
Subject: Re: [Phono-L] Edison Bearing
Ronald
Thanks so much for your input, I really appreciate it. The only reason I
used stainless steel is that it would last longer. The oil in the bearing
would sustain it.Bronze is such a soft metal but did not know about it's
absorbency. That may
: Monday, January 28, 2013 12:35 PM
Subject: Re: [Phono-L] Edison Bearing
Ronald
Thanks so much for your input, I really appreciate it. The only reason I
used stainless steel is that it would last longer. The oil in the bearing
would sustain it.Bronze is such a soft metal but did not know
Larson ra...@cityprayz.com
To: Antique Phonograph List phono-l@oldcrank.org
Sent: Monday, January 28, 2013 12:35 PM
Subject: Re: [Phono-L] Edison Bearing
Ronald
Thanks so much for your input, I really appreciate it. The only reason I
used stainless steel is that it would last longer. The oil
what he started with, since he can do it at home without
specialized equipment.
From: gbogan...@charter.net
To: phono-l@oldcrank.org
Date: Mon, 28 Jan 2013 17:44:31 -0500
Subject: Re: [Phono-L] Edison Bearing
It is important to note the difference between bronze bushings and
sintered
with, since he can do it at home without specialized
equipment.
From: gbogan...@charter.net
To: phono-l@oldcrank.org
Date: Mon, 28 Jan 2013 17:44:31 -0500
Subject: Re: [Phono-L] Edison Bearing
It is important to note the difference between bronze bushings and
sintered bronze bushings
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