There's no way Vietnam is paying a 20% tariff on their exports to the US. Trump has been lying about how tariffs work the whole time. This is the same language he has used throughout, where he claims tariffs are paid by other countries when in reality they're paid by the importer in the US (and passed on to consumers).
Yes, you can add more lubricant to the bearing, like Vaseline or something like that. If you lift the sticker on the fan usually the bearing is exposed under there
