First a little background.
We are soldering some copper tubes on a thermo-siphon used in an ultra low temp freezer.
The solder we are using is a lead free mix.
It consists of 96% tin and 4% silver non-flux core.
We then use Rubyfluid liquid flux.
In case anyone thinks it is important we are...
I have a bearing with a 80.000mm OD.
I am machining a housing from 1018 steel that the bearing will go in.
There is enough load and stress on the bearing that I believe it needs and interference fit.
The bearing will be pressed in until it seats against a lip. Then a snap ring will go in...