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Tom Wesenberg · 06-15-2016, 05:40 AM

Since you have a sealed bearing and it feels good, I'd just leave it. You can go to an auto or hardware store and find a snap ring that fits in the groove. Just be sure it doesn't scrape on the end plate. You could even form a piece of coat hanger to fit in the groove. Since the bearing is tight on the shaft it would only be needed to hold the spacer, but it sounds like that is also tight to the shaft. Polish the commutator and install new brushes and you should be good to go. Don't let anyone talk you into cutting the commutator unless it is badly burned, out of round, or badly grooved.

06-15-2016, 05:40 AM	#7
Tom Wesenberg Senior Member Join Date: May 2010 Location: Mpls, MN Posts: 27,582	Re: Generator bearing replacement Since you have a sealed bearing and it feels good, I'd just leave it. You can go to an auto or hardware store and find a snap ring that fits in the groove. Just be sure it doesn't scrape on the end plate. You could even form a piece of coat hanger to fit in the groove. Since the bearing is tight on the shaft it would only be needed to hold the spacer, but it sounds like that is also tight to the shaft. Polish the commutator and install new brushes and you should be good to go. Don't let anyone talk you into cutting the commutator unless it is badly burned, out of round, or badly grooved.