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Post by mikesgonepostal on Sept 11, 2023 10:08:46 GMT -5
For you electrical minded folks out there I need some info on motors. I'm looking for a replacement or better motor for a Thumler A-R12. I saw a post where someone had some recommendations for a replacement motor for a Thumler Model B, but I see thats a different motor. I started looking at specs on Fasco and P-Tech motors and trying to find maybe a Dayton with the same specs. It looks like most things are the same: 115v, 60Hz, 1550rpm, thermally protected. Only thing i'm not sure about is the amps. The A-R12 motors are 0.54 amps. I see other motors with everything the same but the amps are higher. I don't know what that means and if I can use a motor with different specs. I haven't had any luck trying to cross reference the Fasco or P-Tech motors with a Dayton or other motor. Also not sure about the enclosure type, seems to be a few choices and I have no idea what i need. Thanks for any info.
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Post by Rockoonz on Sept 11, 2023 10:57:10 GMT -5
More Amps is more power, so not a bad thing. It may consume slightly more electricity, but since the load the motor is carrying remains the same it should be a small difference. The thermal protection is the big thing, and the shaft diameter to fit your pulley. Mounting may require a bit of fabrication, the smaller motors tend to have a wide variety of mounting possibilities. I like enclosed motors like TEFC, farm duty, or wash down motors with lapidary equipment, but on a tumbler water isn't an issue most of the time. With the thermal protection, if you can find one with a button reset that is best, since with the breakers that reset themselves it can be off/on/off/on if there's a problem.
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Post by mikesgonepostal on Sept 11, 2023 12:12:38 GMT -5
On Zoro's website I found a Dayton model 20HN83. Seems like everything matches up with my current A-R12 motor: 120v, 60Hz, 1550rpm, 0.54amps, thermal protection. Its a PSC and not shaded pole. Wondering if this one is the winner?
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adam5
starting to spend too much on rocks
Member since August 2023
Posts: 146
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Post by adam5 on Sept 11, 2023 18:47:12 GMT -5
It looks to be right to me. The only thing I am not certain about are the shaft dimensions. The Dayton motor shaft is 1.5 inches long and 0.25 inches in diameter. The Fasco's shaft looks to have the same dimensions, but I have not be able to confirm it.
By the way, I have bought a few things for my electrical company from Zoro and have never had any problems.
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