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 <[email protected]> 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: [email protected] >> To: [email protected] >> 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" <[email protected]> >> To: "Antique Phonograph List" <[email protected]> >> 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 <[email protected]> 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: [email protected] [mailto:[email protected]] >>>> 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
