Advice on removing the outer part of a bearing from a race
#1
06-04-20, 05:00 PM
Advice on removing the outer part of a bearing from a race
I have a knack for causing my own problems. we have this 'wind vane' gadget we bought at a flower show.
I've replaced the bearings a few times over the years.
This last time, I was pushing the bearing out and (my mistake) not using something with the diameter to push on the outer ring of the bearing. The inner ring, balls, etc came out. And now i have that outer ring stuck in there. I tried prying it out / getting under it from the back but there's not enough room.
I guess I need a gadget that expands a bit to grab the inner surface and then pull that out?
Do you know what that looks like / is called?
The picture is a new bearing and my hand (to give size perspective) and the race with the outer part of the old bearing stuck in there.
Thanks!
I've replaced the bearings a few times over the years.
This last time, I was pushing the bearing out and (my mistake) not using something with the diameter to push on the outer ring of the bearing. The inner ring, balls, etc came out. And now i have that outer ring stuck in there. I tried prying it out / getting under it from the back but there's not enough room.
I guess I need a gadget that expands a bit to grab the inner surface and then pull that out?
Do you know what that looks like / is called?
The picture is a new bearing and my hand (to give size perspective) and the race with the outer part of the old bearing stuck in there.
Thanks!
#2
06-04-20, 05:09 PM
Group Moderator
What's the diameter of the remaining portion of the bearing? My guess is you might beat the crap out of that thing trying to get it out. It might be better to cut the ring in half with a hacksaw... while being careful not to cut too deep. The kind that is just a blade sticking out the front and a little handle. Hope you know the one I mean.
babaganoosh
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babaganoosh
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#4
06-05-20, 05:00 AM
I would file a 3 notches, 120 degrees apart, at the small end of the bearing bore. The notches would be deep enough to expose the outer race width. Place hub of wheel on something solid. Using a drift, tap the outer race at the three notches evenly and repeatedly. The race will come out.
babaganoosh
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#5
06-05-20, 05:25 AM
Super Moderator
That appears to be a fairly delicate assembly that might not respond well to rough handling.
Slow and easy with a Dremmel tool to grind the race and remove the pieces.would prevent damage.
Slow and easy with a Dremmel tool to grind the race and remove the pieces.would prevent damage.
babaganoosh
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#6
06-05-20, 06:30 AM
Group Moderator
I'd use a hammer and punch, nail or any other piece of steel you can get in there. Tap on one edge of the bearing race then move over 30-40° and tap again and keep repeating all the way around the race. If you only pound on one side of the race it will **** (get crooked) and wedge itself in place. If you work carefully around the circumference you can slowly get it to move out.
babaganoosh
voted this post useful.
#7
06-05-20, 11:10 AM
Member
First thing I would do is using a map gas torch, heat the outer dia of the wheel to warm it up and see if it expands enough to pry the race out. If that doesn't work then go to the destructive options!
babaganoosh
voted this post useful.
#8
06-07-20, 11:35 PM
I wound up using the $25 dremel set to first try the cut off wheels / grinders on the outer race, but that was too tight quarters / hard metal. Wound up cutting into the back of the cup to be able to push the race out.
THANKS EVERYONE!!
THANKS EVERYONE!!
Thank you