Re: [Phono-L] Edison Bearing

2013-01-29 Thread Don Mayer
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

Re: [Phono-L] Edison Bearing

2013-01-29 Thread Rich
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

[Phono-L] Edison Bearing

2013-01-28 Thread Randy Larson
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

Re: [Phono-L] Edison Bearing

2013-01-28 Thread Ron L'Herault
[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

Re: [Phono-L] Edison Bearing

2013-01-28 Thread Randy Larson
- 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

Re: [Phono-L] Edison Bearing

2013-01-28 Thread Ron L'Herault
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

Re: [Phono-L] Edison Bearing

2013-01-28 Thread Greg Bogantz
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

Re: [Phono-L] Edison Bearing

2013-01-28 Thread Vinyl Visions
: 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

Re: [Phono-L] Edison Bearing

2013-01-28 Thread Bill Taney
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

Re: [Phono-L] Edison Bearing

2013-01-28 Thread Bill Taney
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

Re: [Phono-L] Edison Bearing

2013-01-28 Thread Rich
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