North Mississippi Delta / Alabama Gulf Coast | Just replaced bearings, seal, bolts, nuts and blades on fixed Yetters.
The inner race was all crusted up like yours. Took them apart and tossed old bearings in some diesel overnight and drove them out with an impact socket.
They will clean up enough to reuse.
https://youtu.be/Ihx9jmAJQi8?si=S5uVt7Q8iAmE1ivd |