In this picture, I flipped the pin over so it would be easier to understand what is going on.
The pink and green lines represent the wheel pushing on the pin during acceleration or braking.
The red line represents the 90 degree taper of the hub adapter. (I have exaggerated the angle to make it easier to see what is going on.)
The yellow line follows the 76 degree taper of the pin.
The blue lines represent your underwear.
