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| Moderated by: Steve Cunningham, Stan Adams, Rod Rogers |
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| WTB rotor for Emerson 11644 | Rate Topic |
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| Posted: Fri Aug 9th, 2013 12:38 am |
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1st Post |
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Chuck Abernathy AFCA Member 
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Thanks! Chuck
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| Posted: Fri Aug 9th, 2013 03:52 am |
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2nd Post |
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Tim Marks Guest
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Chuck- Do these small fans have the same kind of rotor as a larger emerson? btw, shanna says hi! T
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| Posted: Fri Aug 9th, 2013 04:52 am |
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3rd Post |
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Chuck Abernathy AFCA Member
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Tim, I am not really familiar with the nuances of these small guys. I have an 8" 1500 that I know is a split-phase system, with start windings that swing out against springs when the rotor reaches a certain speed. I thought the 11644 was shaded-pole, therefore quite like most of the larger Emersons, say after the 14xxx, but I am certainly not any kind of an expert. Could someone who knows these little fans help me here? Is the 11644 split-phase or shaded-pole? It is strange that the 11644 I have had a shaded-pole rotor in it, but strange...the OD was correct, but the shaft hole was much LARGER than the shaft. Someone had wrapped shim stock around the shaft, so the rotor would hold the blade in place, and sold it as a non-working fan...I guess so!!! I'm GUESSING that the rotor may be for a slightly larger fan, say 14645, but that's JUST a guess! I never even tried to run it, and just put it high up on a shelf in my study. After FF 2013, where I bought the little Emerson 1500 in the Kernell auction, I brought the 11644 down to see if I could get it to run. I was quite surprised when I peeked inside the motor housing...no wonder it didn't run! I have long forgotten where and from whom I bought the fan, so now I am just trying to get 'er back up and running!
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| Posted: Fri Aug 9th, 2013 05:01 am |
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4th Post |
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Stan Adams Super Moderator 
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Chuck, that 11644 should have the same rotor as a 1500. The 11644 was the last model of the split phase motor.
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| Posted: Fri Aug 9th, 2013 05:08 am |
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5th Post |
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Chuck Abernathy AFCA Member
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OK, Thanks, Stan!! Am I on the right track as to what this rotor that's in the 11644 might go to? Was the shaft for the 14645 larger than the 11644 and the stator ID the same size? The stator ID for this shaded-pole rotor would be the same, as this rotor is about the right size for the stator that's in this 11644.
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| Posted: Fri Aug 9th, 2013 05:12 am |
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6th Post |
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Chuck Abernathy AFCA Member
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BY the way, Stan...great Facebook picture of you in the First United Methodist Church sanctuary beside the great chandelier! I had forgotten how magnificent the sanctuary of FUMC Houston is!
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| Posted: Fri Aug 9th, 2013 05:17 am |
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7th Post |
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Russ Huber AFCA Member 
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Chuck, please take pictures of the rotor that came with it(front and back) and post them.
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| Posted: Fri Aug 9th, 2013 05:20 am |
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8th Post |
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Stan Adams Super Moderator
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Chuck, it has been a very long time since I had my Emerson 1500 open to look at the rotor. Is that stator a two wire or three wire stator? The 14645 should be three wire where the 11644 should be a two wire with a start switch. Looking at my eight inch Emerson Jr & my 1500, the motor is nearly the same size. I wonder if someone put a jr rotor & stator in there?
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| Posted: Fri Aug 9th, 2013 05:23 am |
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9th Post |
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Stan Adams Super Moderator
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Chuck Abernathy wrote: BY the way, Stan...great Facebook picture of you in the First United Methodist Church sanctuary beside the great chandelier! I had forgotten how magnificent the sanctuary of FUMC Houston is! Thanks Chuck! You should come by sometime, the first floor has been gutted (except the Sanctuary) & made to look 1910 again.
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| Posted: Fri Aug 9th, 2013 05:24 am |
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10th Post |
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Russ Huber AFCA Member
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Stan Adams wrote: Chuck, it has been a very long time since I had my Emerson 1500 open to look at the rotor. Is that stator a two wire or three wire stator? The 14645 should be three wire where the 11644 should be a two wire with a start switch. Looking at my eight inch Emerson Jr & my 1500, the motor is nearly the same size. I wonder if someone put a jr rotor & stator in there? Stan, his fan is a centrifugal start 2 wire head cord. Or...it is SUPPOSED to be one. 
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| Posted: Fri Aug 9th, 2013 05:25 am |
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11th Post |
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Russ Huber AFCA Member
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Hey Chuck! Dig out the kodak, and lets take a look! 
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| Posted: Fri Aug 9th, 2013 02:54 pm |
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12th Post |
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Stan Adams Super Moderator
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Russ Huber wrote: Stan Adams wrote:Chuck, it has been a very long time since I had my Emerson 1500 open to look at the rotor. Is that stator a two wire or three wire stator? The 14645 should be three wire where the 11644 should be a two wire with a start switch. Looking at my eight inch Emerson Jr & my 1500, the motor is nearly the same size. I wonder if someone put a jr rotor & stator in there? Yeh, but the key word there is "supposed" to. I am wondering if someone tried to make a fan out of a newer model. 
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| Posted: Fri Aug 9th, 2013 08:31 pm |
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13th Post |
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Chuck Abernathy AFCA Member
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OK, Russ, I'll post a few pics (though it will require several posts, as I still can not figure out how to post multi-pics per post! First is the stator...note the insulating paper at the back, indicating this ONCE had the split phase copper pieces (now removed). Attached Image (viewed 673 times):
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| Posted: Fri Aug 9th, 2013 08:32 pm |
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14th Post |
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Chuck Abernathy AFCA Member
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Now the stator with the incorrect rotor set in there. Oh the head wire has two wires. Attached Image (viewed 707 times):
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| Posted: Fri Aug 9th, 2013 08:33 pm |
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15th Post |
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Chuck Abernathy AFCA Member
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Here's the rotor...14644??? Attached Image (viewed 651 times):
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| Posted: Fri Aug 9th, 2013 08:34 pm |
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16th Post |
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Chuck Abernathy AFCA Member
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Rotor 2 Attached Image (viewed 681 times):
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| Posted: Fri Aug 9th, 2013 08:35 pm |
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17th Post |
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Chuck Abernathy AFCA Member
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Rotor 3...clearly shaded-pole. Attached Image (viewed 650 times):
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| Posted: Fri Aug 9th, 2013 09:13 pm |
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18th Post |
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Russ Huber AFCA Member
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Not good, Chuck. Not the original stator either. Yours should have start winding and the next stator for the Emerson 8" was the phase shift 3 wire stator. No shaded pole stators with the earlier Emerson desk fans. http://www.youtube.com/watch?v=p9uZV7FW44Q Last edited on Fri Aug 9th, 2013 09:18 pm by Russ Huber |
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| Posted: Fri Aug 9th, 2013 10:08 pm |
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19th Post |
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Stan Adams Super Moderator
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8" Emerson Jr! The junior has a larger shaft than that 11644 & those are shades on that stator.
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| Posted: Fri Aug 9th, 2013 10:15 pm |
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20th Post |
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Steve Stephens Guest 
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Chuck Abernathy wrote: OK, Russ, I'll post a few pics (though it will require several posts, as I still can not figure out how to post multi-pics per post!Chuck, FYI, one photo per post is all the forum is set up for UNLESS you have your photos hosted on Photobucket, Flickr, Picassa, or similar. Then you can post an IMG Code allowing an unlimited number of photos per post.
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| Posted: Fri Aug 9th, 2013 10:23 pm |
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21st Post |
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Chuck Abernathy AFCA Member
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OK, Russ! On closer examination of that head wire, there ARE three leads, which confirms what one would expect, with the smaller poles on the sides of each of the 4 poles. Looks like someone TRIED to convert this, using maybe a 14644 stator and rotor, but ran into the smaller 11644 shaft and gave up. Now, I wonder if the fan would run if I made a sleeve to take up the slack between rotor and shaft. I know that would not be the correct fix, but would it work? Unfortunately, the original threaded screw that runs through the shaft to hold in the rotor has been replaced by an all-thread rod, with the rotor being held in place for show only by a plain nut and washer. I assume the correct rod has threads only on the ends, so the nuts can be shouldered up, leaving just the right amount of slack for the rotor to turn. Also, I do not know how to attach the three wires at the switch, though, as the switch has only two leads (both now clipped off short). Obviously, this old ceiling fan nut has no clue how these table fans work! Most of the table fans I own are either battery powered, or run on DC current...all with TWO leads! Please forgive my ignorance! SIGH!
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| Posted: Fri Aug 9th, 2013 11:13 pm |
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22nd Post |
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Steve Stephens Guest
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Chuck Abernathy wrote: I assume the correct rod has threads only on the ends, so the nuts can be shouldered up, leaving just the right amount of slack for the rotor to turn.That is what I found on my11648 Emerson Chuck; just threads on the ends.
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| Posted: Sat Aug 10th, 2013 05:05 pm |
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23rd Post |
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Fred Berry Guest 
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I find this thread to be very interesting. Please keep posting the progress on this little fan!
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| Posted: Sun Aug 11th, 2013 04:00 am |
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24th Post |
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Chuck Abernathy AFCA Member
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After many PM's from wonderful (and patient) AFCA members, Randy Rohr and Russ Huber here's the current status: I removed the stator, found it to be a shaded-pole, 2-wire stator, perhaps from an Emerson Jr, like Stan Adams suggested. It had been ground down SLIGHTLY at the 4 centering busses in the case (obviously it was a tad too large). It fits well, so I'll try to use it! Randy Rohr has graciously agreed to send me a rotor from a 14644, which is shaded-pole, but fits the smaller shaft size of the 11644. I hope the air gap is small enough to make a nice-running fan! If not, I will machine a sleeve to increase the size of the 11644 shaft and try to use the Jr rotor. If all this fails, I'm no worse off than when I started this project, and can just put the little fan back up on that high shelf where it can just look pretty! Blessings All! Chuck
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| Posted: Sun Aug 11th, 2013 04:06 am |
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25th Post |
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George Durbin AFCA Member 
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Hi Chuck! If that 14644 rotor does not work out, I could use it for my 14644... Message me and keep us posted as you move along with this project!
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| Posted: Sun Aug 11th, 2013 04:09 am |
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26th Post |
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Chuck Abernathy AFCA Member
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Actually, George, if it doesn't work for this project, it's not mine and I'll send it back to Randy. You can visit with him about it then. Blessings! Chuck
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| Posted: Thu Aug 15th, 2013 01:31 am |
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27th Post |
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Chuck Abernathy AFCA Member
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OK, a final status report...the 14644 shaded-pole rotor works just fine in the Jr. stator! I had to machine a 0.67" sleeve to take up the room originally occupied by the 11644 start winding set-up, otherwise a perfect fit! It MAY be running just a tiny bit slow (perhaps too large air gap?), but I have not run it alongside the 1500 for comparison, but it is perfect just like it is! Another one resurrected from the junk pile!! Thanks to Russ Huber, Stan Adams, Geoff Dunaway (fresh from his hospital bed, mind you!) and especially Randy Rohr for all the encouragement and help! Blessings! Chuck
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| Posted: Thu Aug 15th, 2013 04:43 am |
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28th Post |
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Stan Adams Super Moderator
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Great to hear you got it going Chuck!
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