Fairly simple if you can get about this way. Sometimes you can use some WD-40 or lubricant to help with the process if this does not work we will need to drill out the center with a reversed thread drill bit and use some form of a EZ out to pull it out. Unfortunately the crank is bent on this motor… but thought I could get you guys a video on how to do this if you need to.
TURN ON SUBTITLES FOR ENGLISH SUBTITLES
Build your own version of my clock:
https://create.arduino.cc/projecthub/edr1924/dcf77-analyzer-clock-v2-0-c25404