So been working on this on and off when i've had time, including (slowly) teaching myself how to use Fusion 360;

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This is the start of the design as i will be getting my hands on a 2kg Hardox disc, which for a very long time will be for display purposes only, no way im risking actually making a spinner yet lol

However have hit a complete mind blank, gone through several threads but cant seem to find the answer, short of using locktite or something how do I secure the wheels onto the drill shaft?

I was thinking should the inserts be clear all the way through and ive messed up the wheels?

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Thanks