https://vkvideo.ru/video-51857894_16563 ... static.net

Six months ago, the fan started to rattle. A few months ago, I lubricated it with bearing repair grease.
He rattled on for a couple more months. Now, even at maximum RPM, it is running quietly.

Yes, you can say that after any lubrication they stop rattling. But it won't last long.

I'll repeat myself. It rattled for two months after lubrication. But the noise gradually decreased, and completely disappeared.

(tribotechnical lubrication)
An active mineral used in Suprotek's proprietary tribotechnical formulations has been added to the lubricant. This gives the lubricant unique properties.: it not only protects the friction units from wear, but also restores the already worn surfaces of the bearing clips and hinges.

There are analogues from other companies. I don't have anything else interesting.

AI of Trump with a dove on his barnacle