Quote:
Originally Posted by Tom Wesenberg
I wouldn't worry about that. Just be sure the taper is clean and dry when the hub goes back on.
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Let me expand a little on what Tom said. The taper and the friction of the clean metals touching due to the 100#'s of torque on the axle nut is the real force behind keeping the wheel from turning. The key is secondary. If the key was primary, than there would be no taper and just a straight shaft could be used like the gear for the cam and crank shaft.