KitchenAid KP2671 Professional 6 Series Stand Mixer "9708036 assembly" Questions

...assembly for a Kitchen Aid mixer? The model # is KP26M1XMR and the part # is 9708036 There is a dealer on eBay selling it right now (New). Search for KitchenAid Stand Mixer Planetary Assembly White ...

...9708036. ican not see any holes for a pin, no grove for a retaining pin, nor is there any threaded hole for a screw. it must have been pressed on at the factory. nothing seems to be broken and i did ...