Re: [Phono-L] Edison Bearing
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 wrote: 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 the ritual of oiling to contend with, but do that happily in exchange for a mandrel which rotates with less effort, important when motors have lost some of their "oomph" due to worn gear shaft pinions, gear teeth and the like. I may have thought at the time that oiling the mandrel shaft was part of the cachet of acoustic phonograph technology. I would enjoy hearing if others with better technique have a better experience with sintered bronze than I did. Regards, Don Mayer It is important to note the difference between bronze bushings and sintered bronze bushings. The former require regular lubrication as does any other plain bearing. But the sintering process produces a material that is porous and will hold lubricant in its pores which significantly reduces the need for regular oiling. Here's a description of proper and improper machining of sintered bronze: http://www.lm-tarbell.com/machining_sintered_bronze.htm ___ Phono-L mailing list http://phono-l.org ___ Phono-L mailing list http://phono-l.org
Re: [Phono-L] Edison Bearing
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 the ritual of oiling to contend with, but do that happily in exchange for a mandrel which rotates with less effort, important when motors have lost some of their "oomph" due to worn gear shaft pinions, gear teeth and the like. I may have thought at the time that oiling the mandrel shaft was part of the cachet of acoustic phonograph technology. I would enjoy hearing if others with better technique have a better experience with sintered bronze than I did. Regards, Don Mayer >It is important to note the difference between bronze bushings and > sintered bronze bushings. The former require regular lubrication as does > any other plain bearing. But the sintering process produces a material that > is porous and will hold lubricant in its pores which significantly reduces > the need for regular oiling. Here's a description of proper and improper > machining of sintered bronze: > > http://www.lm-tarbell.com/machining_sintered_bronze.htm ___ Phono-L mailing list http://phono-l.org
Re: [Phono-L] Edison Bearing
Sharp carbide tool bit and slow feed and you are good to go. The major problem is the type of oil used by many people to oil these machines. On 01/28/2013 06:05 PM, Vinyl Visions wrote: That explanation of machining sintered bronze is probably why Randy is better off doing 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 bronze bushings. The former require regular lubrication as does any other plain bearing. But the sintering process produces a material that is porous and will hold lubricant in its pores which significantly reduces the need for regular oiling. Here's a description of proper and improper machining of sintered bronze: http://www.lm-tarbell.com/machining_sintered_bronze.htm Such bushings have been used for electric motors for decades and are very dependable. To us old-timers, they were known as "oilite" bearings. Turns out, that is now the tradename of a company who furnishes such bearings: http://www.oilite.com/bearings.asp Greg Bogantz - Original Message - From: "Randy Larson" To: "Antique Phonograph List" 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 in the bearing would sustain it.Bronze is such a soft metal but did not know about it's absorbency. That may possibly reduce any wear on the metal. I will try the bronze. Thanks! Also, any suggestions on what oil has worked best for you? I am going to try some teflon based oil, but they are harder to come by where I live. I do have an order for some and hope it will be here in a couple of weeks. Thanks again Randy On Mon, Jan 28, 2013 at 10:56 AM, Ron L'Herault wrote: So why didn't you use something like sintered bronze for the bearing? It absorbs and holds oil. Ronald L'Herault Lab Supervisor, Biomaterials Division B.U. School of Dental Medicine 801 Albany Street S203 Roxbury, MA 02119 -Original Message- 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 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 problems with an Edison motor is that there is steel on steel friction with only the oil you can externally place on it. That in itself initiated the wheels spinning. I wondered if I could improve it. This bearing provides a continuous feed of oil to the bearing and reduce the constant need to oil it externally. Maybe it's crazy and won't make a difference. But I'm sending it out to several individuals to test it and see if it is an improvement. Or maybe it's because I'm too lazy to oil the motor as required! In 1963, I received my fathers Brunswick he played as a child. I was thrilled with it and began my enthusiasm for collecting, He would take me all over the city as I scoured for any old unit. In 1964, he paid $60 for my first Edison Standard (of which he only made $75 a week). I was stunned that he would make such a sacrifice for me. What is interesting is that he worked for Alcoa Aluminum. He was an avid inventor and came up with several improvements for the machines he operated. He was even recognized for several awards (unfortunately nothing financially). He passed away in 2011 at the age of 91 He was my best friend, hero and my inspiration. And we both admired Edison! Maybe a long explanation of why, but there it is. Best Regards Randy Larson ___ Phono-L mailing list http://phono-l.org ___ Phono-L mailing list http://phono-l.org ___ Phono-L mailing list http://phono-l.org ___ Phono-L mailing list http://phono-l.org ___ Phono-L mailing list http://phono-l.org ___ Phono-L mailing list http://phono-l.org
Re: [Phono-L] Edison Bearing
http://www.allpar.com/history/amplex.html History of oilite and the Amplex division of Chrysler corporation Sent from my iPhone On Jan 28, 2013, at 6:05 PM, Vinyl Visions wrote: > That explanation of machining sintered bronze is probably why Randy is better > off doing 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 bronze bushings. The former require regular lubrication as does >> any other plain bearing. But the sintering process produces a material that >> is porous and will hold lubricant in its pores which significantly reduces >> the need for regular oiling. Here's a description of proper and improper >> machining of sintered bronze: >> >> http://www.lm-tarbell.com/machining_sintered_bronze.htm >> >> Such bushings have been used for electric motors for decades and are very >> dependable. To us old-timers, they were known as "oilite" bearings. Turns >> out, that is now the tradename of a company who furnishes such bearings: >> >> http://www.oilite.com/bearings.asp >> >> Greg Bogantz >> >> >> >> >> - Original Message - >> From: "Randy Larson" >> To: "Antique Phonograph List" >> 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 in the bearing >>> would sustain it.Bronze is such a soft metal but did not know about it's >>> absorbency. That may possibly reduce any wear on the metal. I will try the >>> bronze. Thanks! >>> Also, any suggestions on what oil has worked best for you? I am going to >>> try some teflon based oil, but they are harder to come by where I live. I >>> do have an order for some and hope it will be here in a couple of weeks. >>> Thanks again >>> Randy >>> >>> On Mon, Jan 28, 2013 at 10:56 AM, Ron L'Herault wrote: >>> >>>> So why didn't you use something like sintered bronze for the bearing? >>>> It >>>> absorbs and holds oil. >>>> >>>> Ronald L'Herault >>>> >>>> Lab Supervisor, Biomaterials Division >>>> B.U. School of Dental Medicine >>>> 801 Albany Street S203 >>>> Roxbury, MA 02119 >>>> >>>> >>>> >>>> >>>> -Original Message- >>>> 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 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 problems with an Edison >>>> motor is that there is steel on steel friction with only the oil you can >>>> externally place on it. That in itself initiated the wheels spinning. I >>>> wondered if I could improve it. >>>> This bearing provides a continuous feed of oil to the bearing and reduce >>>> the >>>> constant need to oil it externally. >>>> Maybe it's crazy and won't make a difference. But I'm sending it out to >>>> several individuals to test it and see if it is an improvement. >>>> Or maybe it's because I'm too lazy to oil the motor as required! >>>> In 1963, I received my fathers Brunswick he played as a child. I was >>>> thrilled with it and began my enthusiasm for collecting, He would take me >>>> all over the city as I scoured for any old unit. In 1964, he paid $60 for >>>> my >>>> first Edison Standard (of which he only made $75 a week). I was stunned >>>> that >>>> he would make such a sacrifice for me. >>>> What is interesting is that he wor
Re: [Phono-L] Edison Bearing
Sent from my iPad Oilite is a trademark and specific brand of bearings that has changed hands multiple times over the years. Oilite bearings were invented by Chrysler corporation and was a subsidiary of Chrysler and profit center for a good while. Bill >> >> Such bushings have been used for electric motors for decades and are very >> dependable. To us old-timers, they were known as "oilite" bearings. Turns >> out, that is now the tradename of a company who furnishes such bearings: >> >> http://www.oilite.com/bearings.asp >> >> Greg Bogantz >> >> >> >> >> - Original Message - >> From: "Randy Larson" >> To: "Antique Phonograph List" >> 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 in the bearing >>> would sustain it.Bronze is such a soft metal but did not know about it's >>> absorbency. That may possibly reduce any wear on the metal. I will try the >>> bronze. Thanks! >>> Also, any suggestions on what oil has worked best for you? I am going to >>> try some teflon based oil, but they are harder to come by where I live. I >>> do have an order for some and hope it will be here in a couple of weeks. >>> Thanks again >>> Randy >>> >>> On Mon, Jan 28, 2013 at 10:56 AM, Ron L'Herault wrote: >>> >>>> So why didn't you use something like sintered bronze for the bearing? >>>> It >>>> absorbs and holds oil. >>>> >>>> Ronald L'Herault >>>> >>>> Lab Supervisor, Biomaterials Division >>>> B.U. School of Dental Medicine >>>> 801 Albany Street S203 >>>> Roxbury, MA 02119 >>>> >>>> >>>> >>>> >>>> -Original Message- >>>> 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 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 problems with an Edison >>>> motor is that there is steel on steel friction with only the oil you can >>>> externally place on it. That in itself initiated the wheels spinning. I >>>> wondered if I could improve it. >>>> This bearing provides a continuous feed of oil to the bearing and reduce >>>> the >>>> constant need to oil it externally. >>>> Maybe it's crazy and won't make a difference. But I'm sending it out to >>>> several individuals to test it and see if it is an improvement. >>>> Or maybe it's because I'm too lazy to oil the motor as required! >>>> In 1963, I received my fathers Brunswick he played as a child. I was >>>> thrilled with it and began my enthusiasm for collecting, He would take me >>>> all over the city as I scoured for any old unit. In 1964, he paid $60 for >>>> my >>>> first Edison Standard (of which he only made $75 a week). I was stunned >>>> that >>>> he would make such a sacrifice for me. >>>> What is interesting is that he worked for Alcoa Aluminum. He was an avid >>>> inventor and came up with several improvements for the machines he >>>> operated. >>>> He was even recognized for several awards (unfortunately nothing >>>> financially). He passed away in 2011 at the age of 91 He was my best >>>> friend, >>>> hero and my inspiration. And we both admired Edison! >>>> Maybe a long explanation of why, but there it is. >>>> Best Regards >>>> Randy Larson >>>> ___ >>>> Phono-L mailing list >>>> http://phono-l.org >>>> >>>> ___ >>>> Phono-L mailing list >>>> http://phono-l.org >>> ___ >>> Phono-L mailing list >>> http://phono-l.org >> >> ___ >> Phono-L mailing list >> http://phono-l.org > > ___ > Phono-L mailing list > http://phono-l.org ___ Phono-L mailing list http://phono-l.org
Re: [Phono-L] Edison Bearing
That explanation of machining sintered bronze is probably why Randy is better off doing 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 bronze bushings. The former require regular lubrication as does > any other plain bearing. But the sintering process produces a material that > is porous and will hold lubricant in its pores which significantly reduces > the need for regular oiling. Here's a description of proper and improper > machining of sintered bronze: > > http://www.lm-tarbell.com/machining_sintered_bronze.htm > > Such bushings have been used for electric motors for decades and are very > dependable. To us old-timers, they were known as "oilite" bearings. Turns > out, that is now the tradename of a company who furnishes such bearings: > > http://www.oilite.com/bearings.asp > > Greg Bogantz > > > > > - Original Message - > From: "Randy Larson" > To: "Antique Phonograph List" > 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 in the bearing > > would sustain it.Bronze is such a soft metal but did not know about it's > > absorbency. That may possibly reduce any wear on the metal. I will try the > > bronze. Thanks! > > Also, any suggestions on what oil has worked best for you? I am going to > > try some teflon based oil, but they are harder to come by where I live. I > > do have an order for some and hope it will be here in a couple of weeks. > > Thanks again > > Randy > > > > On Mon, Jan 28, 2013 at 10:56 AM, Ron L'Herault wrote: > > > >> So why didn't you use something like sintered bronze for the bearing? > >> It > >> absorbs and holds oil. > >> > >> Ronald L'Herault > >> > >> Lab Supervisor, Biomaterials Division > >> B.U. School of Dental Medicine > >> 801 Albany Street S203 > >> Roxbury, MA 02119 > >> > >> > >> > >> > >> -Original Message- > >> 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 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 problems with an Edison > >> motor is that there is steel on steel friction with only the oil you can > >> externally place on it. That in itself initiated the wheels spinning. I > >> wondered if I could improve it. > >> This bearing provides a continuous feed of oil to the bearing and reduce > >> the > >> constant need to oil it externally. > >> Maybe it's crazy and won't make a difference. But I'm sending it out to > >> several individuals to test it and see if it is an improvement. > >> Or maybe it's because I'm too lazy to oil the motor as required! > >> In 1963, I received my fathers Brunswick he played as a child. I was > >> thrilled with it and began my enthusiasm for collecting, He would take me > >> all over the city as I scoured for any old unit. In 1964, he paid $60 for > >> my > >> first Edison Standard (of which he only made $75 a week). I was stunned > >> that > >> he would make such a sacrifice for me. > >> What is interesting is that he worked for Alcoa Aluminum. He was an avid > >> inventor and came up with several improvements for the machines he > >> operated. > >> He was even recognized for several awards (unfortunately nothing > >> financially). He passed away in 2011 at the age of 91 He was my best > >> friend, > >> hero and my inspiration. And we both admired Edison! > >> Maybe a long explanation of why, but there it is. > >> Best Regards > >> Randy Larson > >> ___ > >> Phono-L mailing list > >> http://phono-l.org > >> > >> ___ > >> Phono-L mailing list > >> http://phono-l.org > >> > > ___ > > Phono-L mailing list > > http://phono-l.org > > ___ > Phono-L mailing list > http://phono-l.org ___ Phono-L mailing list http://phono-l.org
Re: [Phono-L] Edison Bearing
It is important to note the difference between bronze bushings and sintered bronze bushings. The former require regular lubrication as does any other plain bearing. But the sintering process produces a material that is porous and will hold lubricant in its pores which significantly reduces the need for regular oiling. Here's a description of proper and improper machining of sintered bronze: http://www.lm-tarbell.com/machining_sintered_bronze.htm Such bushings have been used for electric motors for decades and are very dependable. To us old-timers, they were known as "oilite" bearings. Turns out, that is now the tradename of a company who furnishes such bearings: http://www.oilite.com/bearings.asp Greg Bogantz - Original Message - From: "Randy Larson" To: "Antique Phonograph List" 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 in the bearing would sustain it.Bronze is such a soft metal but did not know about it's absorbency. That may possibly reduce any wear on the metal. I will try the bronze. Thanks! Also, any suggestions on what oil has worked best for you? I am going to try some teflon based oil, but they are harder to come by where I live. I do have an order for some and hope it will be here in a couple of weeks. Thanks again Randy On Mon, Jan 28, 2013 at 10:56 AM, Ron L'Herault wrote: So why didn't you use something like sintered bronze for the bearing? It absorbs and holds oil. Ronald L'Herault Lab Supervisor, Biomaterials Division B.U. School of Dental Medicine 801 Albany Street S203 Roxbury, MA 02119 -Original Message- 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 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 problems with an Edison motor is that there is steel on steel friction with only the oil you can externally place on it. That in itself initiated the wheels spinning. I wondered if I could improve it. This bearing provides a continuous feed of oil to the bearing and reduce the constant need to oil it externally. Maybe it's crazy and won't make a difference. But I'm sending it out to several individuals to test it and see if it is an improvement. Or maybe it's because I'm too lazy to oil the motor as required! In 1963, I received my fathers Brunswick he played as a child. I was thrilled with it and began my enthusiasm for collecting, He would take me all over the city as I scoured for any old unit. In 1964, he paid $60 for my first Edison Standard (of which he only made $75 a week). I was stunned that he would make such a sacrifice for me. What is interesting is that he worked for Alcoa Aluminum. He was an avid inventor and came up with several improvements for the machines he operated. He was even recognized for several awards (unfortunately nothing financially). He passed away in 2011 at the age of 91 He was my best friend, hero and my inspiration. And we both admired Edison! Maybe a long explanation of why, but there it is. Best Regards Randy Larson ___ Phono-L mailing list http://phono-l.org ___ Phono-L mailing list http://phono-l.org ___ Phono-L mailing list http://phono-l.org ___ Phono-L mailing list http://phono-l.org
Re: [Phono-L] Edison Bearing
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 [mailto:phono-l-boun...@oldcrank.org] On Behalf Of Randy Larson 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 possibly reduce any wear on the metal. I will try the bronze. Thanks! Also, any suggestions on what oil has worked best for you? I am going to try some teflon based oil, but they are harder to come by where I live. I do have an order for some and hope it will be here in a couple of weeks. Thanks again Randy ___ Phono-L mailing list http://phono-l.org
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 possibly reduce any wear on the metal. I will try the bronze. Thanks! Also, any suggestions on what oil has worked best for you? I am going to try some teflon based oil, but they are harder to come by where I live. I do have an order for some and hope it will be here in a couple of weeks. Thanks again Randy On Mon, Jan 28, 2013 at 10:56 AM, Ron L'Herault wrote: > So why didn't you use something like sintered bronze for the bearing? It > absorbs and holds oil. > > Ronald L'Herault > > Lab Supervisor, Biomaterials Division > B.U. School of Dental Medicine > 801 Albany Street S203 > Roxbury, MA 02119 > > > > > -Original Message- > 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 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 problems with an Edison > motor is that there is steel on steel friction with only the oil you can > externally place on it. That in itself initiated the wheels spinning. I > wondered if I could improve it. > This bearing provides a continuous feed of oil to the bearing and reduce > the > constant need to oil it externally. > Maybe it's crazy and won't make a difference. But I'm sending it out to > several individuals to test it and see if it is an improvement. > Or maybe it's because I'm too lazy to oil the motor as required! > In 1963, I received my fathers Brunswick he played as a child. I was > thrilled with it and began my enthusiasm for collecting, He would take me > all over the city as I scoured for any old unit. In 1964, he paid $60 for > my > first Edison Standard (of which he only made $75 a week). I was stunned > that > he would make such a sacrifice for me. > What is interesting is that he worked for Alcoa Aluminum. He was an avid > inventor and came up with several improvements for the machines he > operated. > He was even recognized for several awards (unfortunately nothing > financially). He passed away in 2011 at the age of 91 He was my best > friend, > hero and my inspiration. And we both admired Edison! > Maybe a long explanation of why, but there it is. > Best Regards > Randy Larson > ___ > Phono-L mailing list > http://phono-l.org > > ___ > Phono-L mailing list > http://phono-l.org > ___ Phono-L mailing list http://phono-l.org
Re: [Phono-L] Edison Bearing
So why didn't you use something like sintered bronze for the bearing? It absorbs and holds oil. Ronald L'Herault Lab Supervisor, Biomaterials Division B.U. School of Dental Medicine 801 Albany Street S203 Roxbury, MA 02119 -Original Message- 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 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 problems with an Edison motor is that there is steel on steel friction with only the oil you can externally place on it. That in itself initiated the wheels spinning. I wondered if I could improve it. This bearing provides a continuous feed of oil to the bearing and reduce the constant need to oil it externally. Maybe it's crazy and won't make a difference. But I'm sending it out to several individuals to test it and see if it is an improvement. Or maybe it's because I'm too lazy to oil the motor as required! In 1963, I received my fathers Brunswick he played as a child. I was thrilled with it and began my enthusiasm for collecting, He would take me all over the city as I scoured for any old unit. In 1964, he paid $60 for my first Edison Standard (of which he only made $75 a week). I was stunned that he would make such a sacrifice for me. What is interesting is that he worked for Alcoa Aluminum. He was an avid inventor and came up with several improvements for the machines he operated. He was even recognized for several awards (unfortunately nothing financially). He passed away in 2011 at the age of 91 He was my best friend, hero and my inspiration. And we both admired Edison! Maybe a long explanation of why, but there it is. Best Regards Randy Larson ___ Phono-L mailing list http://phono-l.org ___ Phono-L mailing list http://phono-l.org
[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 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 problems with an Edison motor is that there is steel on steel friction with only the oil you can externally place on it. That in itself initiated the wheels spinning. I wondered if I could improve it. This bearing provides a continuous feed of oil to the bearing and reduce the constant need to oil it externally. Maybe it's crazy and won't make a difference. But I'm sending it out to several individuals to test it and see if it is an improvement. Or maybe it's because I'm too lazy to oil the motor as required! In 1963, I received my fathers Brunswick he played as a child. I was thrilled with it and began my enthusiasm for collecting, He would take me all over the city as I scoured for any old unit. In 1964, he paid $60 for my first Edison Standard (of which he only made $75 a week). I was stunned that he would make such a sacrifice for me. What is interesting is that he worked for Alcoa Aluminum. He was an avid inventor and came up with several improvements for the machines he operated. He was even recognized for several awards (unfortunately nothing financially). He passed away in 2011 at the age of 91 He was my best friend, hero and my inspiration. And we both admired Edison! Maybe a long explanation of why, but there it is. Best Regards Randy Larson ___ Phono-L mailing list http://phono-l.org
