What's best way to remove bearing shield? One way trip then solvent soak and Corrosion x to be left open.
Always a challenge for me...even with my reading glasses on. Some bearings are so tiny I use a fish hook to pop the shield off. Almost always destroys the shield, but everyone seems to like them better open anyway. I wrestled the shield off a bearing last night only to discover I had ripped the ball carrier out too! Now what? Is that bearing useless with the balls all "free ranging" around the races? :D
A hook is as good as any tool for shield removal. I use cheap Ebay dental picks too - easier to handle than a hook but sometimes a little soft and bends easily. I may try and make an epoxy handle for a hook that might work.
I use a syringe and a magnifying visor. Good light helps too. A syringe will finesse its way behind the snap ring. You can twist the syringe a bit as the point finds its way into the groove behind the snap-ring. Gentle pressure will guide the point around the circumference and the ring will pop right out. You will curl a few points and bend a few needles but this works very well, especially on the tiny bearings.
A good R/C hobby shop will sell a bearing blaster that directs brake cleaner through the bearings under pressure. These work very well.
http://www.rpmrcproducts.com/shop/tools/bearing-blaster/
-Mike
All the sheilds I have removed from the International's had a ring clip holding them in. I use a syringe needle to pop them out of the bearing but a smaller straightened fishhook will also work to remove the rings. Then the sheild can be removed and reused if wanted.
(https://lh3.googleusercontent.com/skWlj0o3xJ6WjG1j8XhDJe-780PqTcRiMDydIk-3XxpqqYovZD3MmUPzfO1LIOeu4hrb0JPXbNJsswTUhi_5nRCQz-VZe3i18Yiy9nE3a46SgWqQADvL55Pcz7kQqQt8snTZGWJprVyfJX-r8lbJitmPU6iAUAKXfYEFOXHF81_ygaWLkoWidbtfn1FeKYxDvCuQhXTIOrkFeA014I5_ASazaYm4bg-6L1BIUX2lrUdN33DyknIg8fFr1xmAZ8nVjHeoffP572g3woGhjaAeTW_HtzN5kJ0JoH2us8w5VOngpBCilOjYbYviuPuO4bhyD2A82TVJvPs2dQboTTpYS78UJ_CZlwcDk5jDuSfrzdTvJRfpozhz2cZUZDM4yqz7GaId0KXsfwRrsPK2o1GQ_OJ72IQprd0a24QiNnEqt062PEWxPn6SPMcmKTsXrXuD9Ry0wojZcCgCuDFIoS3-1_kAR5w2NlLHsaqEJGw_-oCOE9atSmC98nL28_mRLCW3yBcFtz1EEdlGexu8gNjgzS1aDefgC2CbMM3hhjAlLgq0gFamxsJ4BQeTJ30bCr9NUGIi2xeXnv6KoF6JoFWW14QDNE6T0iIR977hxds=w934-h700-no)
Good tip from all.
I have tried all mentioned above, but at times there is that one that just won't budge and not because it doesn't have the ring retainer.
When that does happen to you as well and you're not worried about replacing the shield, these should do the trick:
http://alantani.com/index.php?topic=1971.msg10129#msg10129
Sal
I have screwed up more than once and ruined a bearing while trying to take the shield off. The cage material is so thin that it doesn't take much pressure to deform something. Now I don't try to take the shield off unless the bearing already has very little free spin time and there is nothing to lose.
-steve
Quote from: Alto Mare on March 10, 2018, 08:18:50 PM
Good tip from all.
I have tried all mentioned above, but at times there is that one that just won't budge and not because it doesn't have the ring retainer.
When that does happen to you as well and you're not worried about replacing the shield, these should do the trick:
http://alantani.com/index.php?topic=1971.msg10129#msg10129
Quote from: oc1 on March 10, 2018, 08:38:45 PM
I have screwed up more than once and ruined a bearing while trying to take the shield off. The cage material is so thin that it doesn't take much pressure to deform something. Now I don't try to take the shield off unless the bearing already has very little free spin time and there is nothing to lose.
-steve
Sal
I've always found this a difficult thing to do and messed up a few bearings in the process. I now prefer to leave them alone until I have reason to want to open it. Bearings too expensive to mess up!
We all have the T shirt !!
Bearings are too expensive here in Africa,.............. hey Cor :'(
Quote from: Zimbass on March 11, 2018, 09:28:59 AM
We all have the T shirt !!
Bearings are too expensive here in Africa,.............. hey Cor :'(
Like most things!
Quote from: Alto Mare on March 10, 2018, 08:18:50 PM
When that does happen to you as well and you're not worried about replacing the shield, these should do the trick:
http://alantani.com/index.php?topic=1971.msg10129#msg10129
Sal
Not meaning to boast but I don't think I have ever destroyed a bearing and I remove the shields on one side quite regularly. I mostly work with small spool bearings but the same principles scale up to larger ones also.
It can help to use a mini vice or grips to hold the bearing stationery.
First I use a small tool like a mini scalpel blade on a regular handle to open a crevice in the shield gap. Do not force it down. Just penetrate the shield, twist the blade and pry the shield upwards. I also use a diamond file to dress the scalpel blade for greater penetration.
Once you have expanded the gap sufficiently you can then use a stronger tool like Sal's mini crow bar to rip the whole thing off.
I also do this with retainer type shields unless I intend to restore the shield later as it is much less fiddly than trying to remove retainers
~
The way I do it is to place the pic close to the inner race and give it a little pressure, shields are not that tough.
I guess I've been lucky, didn't ruin one to date, but I believe it has to do on how you use the tool.
Lets not fotget, man made the tool and not the other way around ;D
Bottom line...use whatever works best for your application. :)
Sal