Studer A812 bearing replacement

[Alexander]

I would be grateful if someone shared one's experience in replacing Studer A812 bearings (pictures attached) - sequence of steps needed.

 

[Alexander]

I would also be grateful for the link or tips if someone would advise where to order the ball bearings for Studer A812 in Western or Eastern Europea (Studer catalogue number 41.99.0106 (5/16 x 6). I can't find it anywhere in Ukraine where I live.