Not yet!
Right now I can't figure out how to get the endcaps off a 608zz bearing in order to re-lube it. Looks like they were never intended to be removed. Maybe the capstan shaft needs to be re-lubed? I recall a warranty repair in 1971 in which Revox service in Nashville replaced a "noisy" original 608zz (SKF made in Italy). I'm wondering if shaft end-play or the sintered bearing in the housing is the problem!
cwz