The problem with bearings in general is they’re manufactured for machinery and high rpm applications therefore the grease can’t be overfilled as it needs expansion room etc.
I can’t believe no one in the industry has sussed that the basic requirement for our low RPM and mostly wet usage would be extra grease in the buggers in the first place.
Oh and my SSC alike ceramic bearings were found to have seized after about 4 months light but wet use,I managed to free them off but don’t hold much hope for their longevity.
I was surprised they’d actually seized tbh as the cranks where stiff to rotate but still spun, it was the top hats that the spindle was rotating in, if they weren’t there it’d be metal to metal contact which would happen with the betd bearings and any others that forego the top hat, which’d make a right royal mess of the spindle pretty quickly I should imagine.
Apparently raceface have redesigned there external BB’s so they <might> be worth revisiting at some time in the future.