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 Posted: Thu Jun 3rd, 2021 03:40 pm
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Rob Duffy
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This post is a problem and solution write up specifically for the Sanyo, Lasko and Galaxy fans from the mid 70's to the late 80's. I shared this a few years ago on the FB group and have decided to list it here as well.

I'm sure most of us who have dealt with these plastic things have wondered why is it that every time we oil them, we get a good 3 or so months use out of them before they start to perform poorly again? Here's why:

These motors do not have any oil retention system in them... At least not anymore. They used to. These motors were designed to be "service free" and instead of standard felt wicking around the bearings, they put this stuff called "Permawick" which is basically the equivalent of oil impregnated saw dust. Fast forward 30 years, this schmoo has since dried up, flaked off and fallen out. The remainder that's usually found in these motors almost resembles dried up grease. It's not. It's the remains of this permajunk. THAT BEING SAID, if you want to fix these the proper way, you'll need to scrape out any of the remaining gunk within the bearing cups and pack the area with some felt material. I used felt washers with an ID of 1/2". The bearing cup itself has an ID of around 7/8" so if you can find felt washers with an OD of around that size, it will almost be a direct fit. I had to cut the ones I ordered down but it wasn't a big deal to do so.



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galaxy1.jpg

Last edited on Fri Jun 4th, 2021 02:39 pm by Rob Duffy

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 Posted: Thu Jun 3rd, 2021 03:41 pm
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Rob Duffy
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Most of us have just either pulled the motors apart and oiled the bearings directly, or tried to squeeze oil in between the shaft and the bearing on the front and back sides of the motor. While this brought most of them back to life, it is NOT a permanent fix and here's why.

The photos I am attaching below show what the wicking material in the motor looks like after 30 or so years
The rear bearing pictured has almost none of the wicking left. No oil retention what so ever. The front bearing pictured in the very next post shows the wicking starting to deteriorate and flake out. This has been the case for EVERY motor I have opened, so it's not just a one off thing. I have opened dozens upon dozens of these Sanyo/Lasko/Galaxy motors up and it's all the same result.

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galaxy2.jpg

Last edited on Thu Jun 3rd, 2021 03:57 pm by Rob Duffy

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 Posted: Thu Jun 3rd, 2021 03:41 pm
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Rob Duffy
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Here's a picture of the front side of the motor with the permawick junk starting to deteriorate and lose it's oiling effect.

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galaxy3.jpg

Last edited on Thu Jun 3rd, 2021 03:46 pm by Rob Duffy

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 Posted: Thu Jun 3rd, 2021 03:41 pm
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Rob Duffy
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I ordered some felt washers to pack into the bearing housing around the bronze oil-lite bushing on the motor pictured above. The ID is 1/2" I don't remember the OD of these felt washers but they needed to be cut down a bit, as pictured below.

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galaxy4.jpg

Last edited on Thu Jun 3rd, 2021 03:50 pm by Rob Duffy

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 Posted: Thu Jun 3rd, 2021 03:42 pm
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Rob Duffy
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Here is one of the bearings within this motor with the permawick cleared out of the cavity. You'll want to get out as much as you can to make space for the felt washer that will be replacing it.

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galaxy5.jpg

Last edited on Thu Jun 3rd, 2021 03:52 pm by Rob Duffy

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 Posted: Thu Jun 3rd, 2021 03:42 pm
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Rob Duffy
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Here is an after photo of the felt washer installed where the permawick used to be, oiled with the finest SAE 20 oil. This retrofit of the felt washer was done over three years ago and the fan has operated flawlessly since without EVER needing an oiling. Overall the motor performance has significantly improved and the coasting time has never changed. The felt washer provides far more lubrication flow to the bearing than the permawick ever could, keeping the motor happy and healthy for a long time to come.

Attached Image (viewed 127 times):

galaxy6.jpg

Last edited on Thu Jun 3rd, 2021 03:55 pm by Rob Duffy

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 Posted: Fri Jun 4th, 2021 12:52 pm
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Tom Zapf
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THANKS ROB!...."SCHMOO"...I OVE IT! 

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 Posted: Fri Jun 4th, 2021 02:16 pm
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Arjun Saini
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ive had bearing issues on them happened to my 16 then BOOM in the garbage from my dad

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