Depending on how much access you have, one way to remove needle bearings in a blind hole is to remove the needle rollers, then use an arc or mig welder and weld a bead around the inside of the bearing outer shell, but be carefull not to blow a hole in it. When the weld cools, it shrinks the bearing shell and is easily removed.
Of course you will have to replace the now damaged bearing with a new one.
The other option is to use a small slide hammer with a suitable attachment.
Bob
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Remember that Assumption is the mother of all f**k-ups.
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