Hello
Im trying to remove 2 broken 6800 stainless steel bearings from a flipsky 6384 motor.
I broke the previous ceramic ones with hammer and chisel but these ones are stainless.
Has anyone figured out a clever way to remove them?
Thanks
Show us some pictures.
If you find a good solution, let me know. 
I still have one motor in that state.
My current plan was to cut an almost fitting piece of wood, put some epoxy on it, and hammer it in. And then hope that it will bond enough to get the casings out
But I’d love to see a better solution.
I also need to get the inner casing off the shaft.
I had exactly the same issue as bearings are glued (bearing fit), apply a little bit of heat with gas touch and once glue melts will come out easy enough.
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For the one stuck on the shaft, from work experience ,
If it’s metal on metal;
You can really solve fitment issues with cooling in freezer/heating in oven.
Maybe freeze the whole thing then heat the stuck ring
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Might be a bit late, I found a picture on how I did remove them. I made a smal clip from a wire that you pull through the stator on a theread. The ends stick between the bearing and the stator. Then use a rod through the stator to hammer them out.
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For future reference, I found a genius idea somewhere on this forum to remove bearings:
- Find a close-fitting rod (such as an Allen wrench or any rod that fits close in the shaft hole)
- Of course, this can’t remove the bearings by itself, it will just slide right through them. However, this is where the genius idea comes in:
- Stuff paper towels down into the bearing!
- Now, push the paper towels in with your finger to stop them from coming out while you hammer on the top with the rod. It might take a few tries, but eventually the outward pressure from the paper plug expanding will provide enough friction to push the bearings out. The (hard) pressure from your finger provides the force needed to expand the paper towel plug; otherwise, it would just slide out and not grip the bearings.
This worked like a charm on the 63100 I was disassembling! I don’t know what its limits are if the bearings are glued in, but for normal press-fits (yes these were from an older, rusted motor), it is great and doesn’t require any more forceful or finicky methods.
An interesting thought is to try with a material that has more friction, like rubber/neoprene.
I had two of those motors and have only disassembled one; I plan to video the second one.
I have a Saite motor with the outer ring of a ceramic bearing stuck. The other parts of the bearing are already out.
Maybe that outer ring is glued in?
Any ideas how to get that out?
was the bearing broken? or was it still complete for this method?
yes I had this issue previously with original flipsky ceramic bearings that broke. You can break easily this outer ceramic rim with hammer and “mechanic’s chisel”
Complete, it was not broken and could still be reused if needed after taking it out because it was undamaged. They were steel bearings but theoretically it should work with ceramic as long as the bearing didn’t get broken.
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Here is your solution
I had this problem with ball bearings several times. Get yourself an internal puller from Ali for €15. It works perfectly even if only the outer ring is still there. Pull once and the part comes out. Nothing gets jammed or broken; it comes out of the fitting as smooth as butter. I can only recommend this set. Before that, I always worked with a self-made shaft, but with that, even changing the bearings on the 6161, where the rear bearing is located about 15 cm deep in the motor, takes less than 1 minute.
Smashing the ceramic ring with a chisel and a lot of energy concentrated on one point also works, but is difficult here because the ring cannot expand. The inner puller is a good investment that will give you a lot of pleasure.
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Update: I am still amazed by how well this method (see my post above) works; I just put in the new bearings I got in order to test my motor spinning before epoxy and I really had to pound them in with a socket and a hammer. I thought that I was never going to get them back out because they were so tightly hammered in, but I tried anyway and to my surprise it worked effortlessly.
(Of course a bearing puller like above will always work great, and it is definitely necessary if you only have the outer ring, but for simple bearing pulls, you can very quickly and for free get the bearings out right away with only a hammer, a metal object, and a paper towel 
).
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Waterproofed Saite motors are tricky because the epoxy often floods slightly over the bearing edge. In my experience the only way is a small sharp cold chisel to smash the ceramic ring. I made some very simple ‘V’ blocks from timber to support the motor safely in my vice. The fractured ceramic particles are really nasty, proper safety goggles rather than just glasses recommended.
On some motors I’ve also had to carefully sand the epoxy back a smidge to allow the new bearings clear access.
I have a short length of 10mm stainless rod that I always insert through the three bearings while the loctite is drying. Saite motors tend to be slightly oversize compared to the Flipsky that are usually nicely tight.
I have given up on ceramic bearings, only use stainless
2RS. Maybe there is a fraction more drag because of the seals but they seem to last much longer.
Always try to press the bearings in from the outer ring, find some pipe or tube that’s slightly oversize and grind down the outer face so that it is just ever so slightly smaller than the OD of the bearing. Banging in the bearing from the centre race is a big no no for longevity. It’s usually not a problem with the Saite but the Flipsky can take a bit of force to properly seat the bearing.
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