Polar PFL/C 71232P Washing Machine: Bearing Issues at 1200 RPM? Rumbling Noise & Potential Causes

Hello.
I have a question, can it be a placenta? Ok. two months ago, the washing machine started to rumble loudly at 1200 rpm, after a month of not washing it in the washing machine, I ran it at 400 revolutions, the washing machine behaved normally. Now at 1000 revolutions you can hear it a bit again, but not as it used to be at 400, can it be a bearing? The washing machine is 3 years old. There is a movie attached, but the crackles in the film are not as loud as they really are.
[movie: ba34881a7e] https://filmy.elektroda.pl/34_1504288886.mp4 [/ movie: ba34881a7e]
https://filmy.elektroda.pl/34_1504288886.mp4

Manually check that the drum has no play (by tugging on the inside of the drum flange)

Hello, take off the belt and twist the drum by hand quickly. If you hear a hurgot, the bearings need to be replaced. With the belt removed, you can also check the drum's axial play - you move it from the front up / down. When there is a lot of slack, you will hear a knock. There may also be a broken drum axle cross.

When I took off the belt and spun the drum, I didn't feel any slack or knocking. These knocks now only occur at 1000 RPM.