Reply To: Grimes Electric Oar

[PM T2]

The shaft is probably galled up or has ridges where the set screws bit into the motor shaft. if you can’t access those spots and deburr them with a file, then the best approach would be the puller as Stanley suggested. it would do the least amount of damage to the ID of the  hub. Spinning it to work it off might actually remove material from the ID of the hub and make it sloppy when reinstalled. Hope this helps, that’s a really nice piece of history you’ve got there.

Best,
PM T2

He's livin' in his own private Idaho..... I hope to go out quietly in my sleep, like my grand-dad did..... and not screaming, like the passengers in his car...