Refurbish clothes dryer motor by greasing the bearings?
I find once bearings seize they usually need replacement. In cases I don’t have the correct bearing size I will pull the shields and clean and lube them, And order new bearings. These small bearings can usually be found for 10$ that is cheaper than a new motor. At my mill I replace at least 1-2 sets of bearings a month saving quite a bit over a years time. I looked at the video and the black ring he is moving is a centrifugal contact set, provides high torque to get motor started then switches to high speed. This can also be the cause of the failure to start. But since you cannot spin it the bearings need to be cleaned / lubed or replaced. If the motor won’t spin by hand it will not have enough torque to start.