Yea you better wait till AL or one of the other guys can help you with this. You also need to consider what driver it takes to run which servo you get. For the most part a servo for a spindle works good but you have to think about heat with the continues running like a spindle would be used as. My first thought on this part makes me think you woudl have to run it on lower voltage to keep the heat down so the power would be lower. But IDk I have never used one, alll though there are threads on the forum of this being done. Just wait and get the right responses to your question.