Bearing care and maintenance.

CAUTION
If you use bearings completely dry without lube they can eventually get damaged.
Run them dry at your own Risk!!

Bearings need to be Cleaned and Lubed over time and extended use.
This applies to ceramic bearings as well.
If you're serious about cleaning your bearings I recommend investing in a Sonic Cleaner.
Short of that, here's more info on cleaning and bearing care.

When using Solvents and Compressed air, use all... Safety Precautions ...
associated with Chemicals and use Safety Glasses when using Compressed air.
If you're not sure of what to do, ... find out!
Better safe than Sorry! If you have questions let me know.

Shields need to be removed to clean the bearing properly.
This will help insure foreign particles do not remain in the bearing.
Once I received a bearing back from a customer having a problem
and after opening the bearing found a 3 inch long strand of hair inside
and the bearing simply needed to be cleaned.
Even with the shields on, dirt and string lint can get into a bearing.
Remove the shields and clean the bearing in a solvent such as paint thinner or grease remover such as Gunk .... Engine Degreaser... found in any auto supply store.
There are other solvents that can be used to clean bearings but... some solvents
evaporate too fast and leave dry residue in the bearing that
cause the bearing not to spin freely after cleaning. It may spin free at first but,
can then become responsive and possibly lock up!
Regardless of how you clean a bearing I Highly Recommend using some type of lube
after cleaning the bearing before using it.
Once the bearing has been cleaned it's recommended using compressed air to blow and spin dry the bearing which also helps to remove any particles that may still be in the bearing.
It's also best to put some light oil lube in the bearing after cleaning and before using air to spin it clean.

If you want the bearing to be Unresponsive it should still have some light oil in it.

To Lube the bearings for Unresponsive play.. Ceramic or otherwise.
I recommend Thin YoYo Jam oil and only enough so it's not dry.
A tiny drop of oil worked into the balls inside will be keep it from locking up
and still allow it to spin without affecting the response.

Put some oil on the end of a toothpick or pin.. not even enough so it looks like a drop...
just so it is wet from the oil. Then keep touching it to the balls in the bearing and spin the bearing with your fingers to work it in.
If you put too much it will dissipate the more you play and get unresponsive.

I do NOT recommend using a dremel on a bearing!
If there is any dirt etc. in the bearing when it is used on the dremel...
the particles will be ground up and can get impregnated into the bearing.