Revox A77 mk2

Replace the bearing? Actually, you might want an expert to fully service it, that's a great machine. 

great machine! replace and consider a spare….

I've already replaced bearings several time over the 50+ years I've had the Revox. My source of replacements may not be the best. If anyone has had good experience acquiring "quiet" bearings, I'd appreciate to know the correct p/n and source.

Thanks

cwz

@cwz have you tried rebuilding them? I've had a number of Ampex, Revox, Magnacord and other machines with noisy bearings but I've never had to replace one of them; I simply made sure they were properly lubricated.

Thanks atmasphere!

Good suggestion! I've thought of that also but didn't know what type/weight of lubricant to use! I assume one can pry out the covers and press lube into the bearing similar to repacking a wheel bearing on my old vintage Porsche!!

Have you searched @ tapeheads.net (regarding the correct grease)?

DeKay

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

Right now I can't figure out how to get the endcaps off a 608zz bearing

The SKF and other quality bearings of that style and size are available on Amazon. 

My service manual states "Mobil DTE extra heavy." This for sintered bearing, assume the ball bearing uses same, although states, "All bearings lubricated for life and normally require no service."

This for sintered bearing, assume the ball bearing uses same, although states, "All bearings lubricated for life and normally require no service."

That's true unless the machine sits for 20-30 years unused.