@tsarstepan,
Bearings might be going and if that is the case it going will not directly harm anything else.
The added heating would however be bad for the laptop but there are free monitoring programs that will monitor the temperature of both your CPU and hard drive as for example my CPU is running at 116 F and hard drive is at 104
F.
I would suggest googling for such a free program and installing it on the laptop to keep an eyes on the temperatures.
Oh there is also cooling platforms that run on a laptop usb power that you can picked up cheaply and placed under the laptop.