your bearings need a clean.
biltin shields are removeable, they are held in by that wire circlip
when refitting shields make sure that the shield is sitting just below the circlip groove.
start with one end of the clip in the groove, and work around to the other end of the clip.
you should be able to refit the circlips without any tools.
sorry to bring this up but i finally cleaned them and they spin great. i got some old shields from other bearings too but when i put them on the wheel doesnt turn. i guess the shield goes too far in and is touching the balls or something. any way around this?