Good to get that confirmation, thanks! I'll order those now and let you know when I'm ready to roll. Since it's coming from EU, who knows how long it will take. What are those felt washers for? I don't see any place for those.

Last year I was lucky to have access to a food bag pump setup to infuse bearings. No longer, so I agree with your comment. I can send the ones in here off to a buddy who can do, and keep for future use.

I just edited my above reply to be more specific.

The felt washers are oil reservoirs sitting around the bearings.
You will see when you take it apart. (Yours will have hardened or at least run dry).
It's a special technical felt material meant specifically for this purpose.
The bearings pull oil from the reservoirs to replenish and compensate for what is being used.

Martin

Thanks for that clarification.

One point on removal of the motor spindle. Am I correct in thinking that is better removed from the top side?

You need to take the motor out. Undo the three springs etc.
Then remove the idler wheel and pull off the pulley.

Martin

Perfect, thanks!

Are you familiar with Super Lube multipurpose synthetic grease with Syncolon®??

Perhaps not that exact product, but I know a thing or two about sinter bronze bearings,
and I have had my hands on lots of things with names beginning with "super".
I remember one product was advertized for use with space shuttles, for which I'm sure it will be fine.
But I threw most of it away. It didn't do anything near what I wanted it to.
Now I think of it, perhaps it was because I didn't have a space shuttle to use it with.

Anyway, - if it has teflon or similar modern "floating"/"suspended" stuff, that gets pressed in to the pores in the
bearing material, cluttering them, it's usually safe to deem it no good for sinter bearings.
And very difficult to remove from the bearings pores again as teflon and microplastics are not easily dissolved. At least not without leaving a mess behind.

Martin

Based on your comment, this won't be a good option.

Super Lube has PTFE https://www.super-lube.com/multi-purpose-synthetic-grease-with-syncolon-ptfe-21030

What would you suggest?

Grease won't do.
It has to be an oil, and it has to be light, homogenic and "self-dissolving", and of course have the right properties and additives.
A mix of primarily SAE30 was used originally.

The bearings from Beoparts are pre-oiled, ready to fit. So are the felt washers.
Just clean the spindle using IPA and a clean lint-free cloth.
And then keep the spindle clean. Leave no fingerprints on it afterwards, - there is no room for any.

With the motor reassembled, you may need to align the spindle and bearings axially, or one or both bearings may end up running on "edges" instead of parallel on their plain inner surfaces.
Originally there was a tool for this task (not a very good one, really) but moving the spindle
around, pushing it sideways a little and rotate it by hand, paying attention to
the run-off time, will give you an idea of the sweet spot.

Martin

Sounds good. So to clarify, once cleaning all the grease off now, I don't need the SAE30 oil. Cool. I appreciate it!

Sticking point ... can't get the copper washer off.