Electronics > Repair
[Found the right stuff] Axle Grease for fan in HP Pavilion Laptop
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coppercone2:
maybe thats a oil bronze bushing that soaks it up and lasts. but a hardened ground one is just worn
Zenith:

--- Quote from: coppercone2 on April 09, 2024, 04:49:09 am ---but honestly does anyone here expect results for a fan? I only ever grease intermittent motors. Something continuous IMO needs replacements because its just not gonna last at all. Power tool or manual OK, I can maybe live with that. But imo its guaranteed that this wont work for more then a few months. A fan on a welder that kicks on once in a while, OK.

But for a continuous computer fan I have a feeling you will be disappointed.

--- End quote ---

Yes. I've done it before and the fan has gone on for ages. I used sewing machine oil. I would have thought grease was too stiff. There are loads of YT videos on cleaning and re-lubricating box fans.

The only reason I'd do it these days is if the fan was hard to find, or for some reason I didn't want to fork out for a new fan.
coppercone2:
I had it last about 3 weeks on a computer fan.

I think room fans last alot longer, maybe big ones. I tried it also on a small one (8 inch black plastic) and it also lasted maybe 1 month before it started making obnoxious noises again
Zenith:
One of those things where YMMV.

Modern computer case fans seem to last for years and there are good ones at reasonable prices, so if I had one acting up, I'd buy a new one. I'd be more inclined to try lubricating the bearing in a fan in a piece of TE, where a replacement could be hard to find or expensive.
BrianHG:
I found this mid range grease:
https://www.lucasoil.ca/pdf/TDS_White-Lithium-Grease.pdf
It's viscosity is 227 at 40deg.  I believe it is similar to the last stuff I used which lasted a few years.
The anti-seize lubs have a viscosity of 100,000 to 200,000, they are like vaseline.  Definitely too thick for the fan.

Unfortunately, The lucasoil will also take a few days to get.

There is also a lithium grease 'Permatex 80345 White Lithium Grease' with a 22 cst viscosity, however, I'm afraid this is similar to a thick motor oil, am I right?

Opening the laptop is a hassle and I only want to do it 2 more times as I will probably also order a replacement fan which will take ~6 weeks to arrive.
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