Chosen Solution

My Ryobi sander started making a strange noise and is not sanding proper. I made sure there were no loose screws, cleaned it and then let it sit for a few hours to cool down as I had been sanding on and off for several hours. Unfortunately none of these seemed to help. What could be causing this and is it fixable ?

Possibly a bearing going, either to or bottom. I’d split it in two and remove the motor and check them. Could be wear on the base where the bearing sits.