Quote Originally Posted by gn7 View Post
Both the machining of the key way and well as the taper. Specially if the spindle speed at the large end of the taper is too fast for the diameter.
I am still suspect that were seen at the enduro may have been the result of machining,
i went to the company you had mentioned and i had them picked as my supplier if i got a new one now its confirmed thanks for the help