yea the whole Idea of fit and forget BB is they're easy to replace quickly
and cheap to do so..

A past thread showed how to tear them down,
but Id not bother except for modifying the cartridge
with a Zirk fitting drilled in and through the BB shell..

and being able to load a lot of grease in it..
My hand made touring bike got a treatment like that.
but it's Unique.. BB shell a closed tube..


..there the taking it apart , would include clearing out the chips from the drilling, and threading..

may be too much expense and bother, so plan to remove and discard
as you find them past their prime..



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