Drum sander for drill press

The Thing are two adapter pieces to use the Bosch 1600A0014U raplacement sanding sleeve together with a skateboard ball bearing and a M8 treaded rod as a sanding drum in your drill press.
Link to the sanding sleeve:
https://www.amazon.de/dp/B00EPLFKOG
Maybe a fixture for the bearing is needed as well, in my case there is a fitting hole in the base plate of the drill press.