Servo torque requirements

Greetings all,

Let me start with the disclaimer that I am a complete newbie to the CNC arena, so if my
questions are nonsensical, bear with me.

I am planning a Benchtop CNC Mill using THK linear guides and some Parker SM232 servos
I picked up for a great deal. I am shopping around for ballscrews and I guess I'm not really
sure what I'm after.

The Parkers are rated for 161 oz-in continuous stall torque. I have seen several larger lead
ballscrews, along the lines of 16mm/turn or so. I plan on using direct coupling for the
servos, so reduction hasn't really been considered at this point. Would this ballscrew be a
bit much for standard milling work with these servos?

I know discussing resolution is pointless, since the servos with 1000 line encoders would
be far more precise than the rest of the machine could be. I don't think the lead would be
limiting, but then I am a newb.

Thanks for any advice,

Jim