Yeah - Im too busy with my another spindle (ATC) Im building right now - I have not took apart this eBay one yet.
Spindle Im building - it changes 1/8 shank bits only (pneumatic).
I made one bad mistake and cant remove 1 degree tapered rotor from shaft anymore ... I just tried how well it fits and pressed it too strong ... and now it stays like for ever. I can not heat because Neodymium magnets, I can not use puller without implied damages ... at that there are two brand new SNFA VEB155CE1UM15 bearings on the bottom side ....
Now I have to sacrify or bearings or rotor. Bearings are expensive, high speed rotor I made myself, composed from tapered centre, SMC base, 120 tiny Neo arc segments ... reinforced with thin titanium outer sleeve ... lot of work
Cheers,
Herbert