Centre Wheel Lower bushing in Omega 504?

Hello!
I am currently working on an Omega Cal 504, Constellation gold on steel.

I believe there is more side shake than it should be around the Centre Wheel in the Mainplate.

There is an “upper” bush (6115) in the parts list but no “Lower”.

If someone knows if there is an Omega bushing for this location I would be grateful.
Or if you know a good alternative.

Best Regards
Erik

Pictures:

Thank you for confirming there is no bushing! Appreciate it.

I had a thought of closing the hole with a small round punch… but that feels slightly risky and I would probably not get exact center position.

I think that the way forward for me will be to leave it as it is, document it in my papers and let someone with the skills put a bushing there in the future.

Too bad these 500series movements do not have a bushing or jewel in that place.

I have another 504 in a De Luxe with the same problem.

Best Regards
Erik