The question came because I was trying to optimize my different stepper motors to the gecko's limits 3.5 and 50v. When I was looking at my guesstimating for the oz-in sizes I would use I obviously saw some wide ranges of amp and mH in the same oz-in range and was wondering what the impact would be. My goal was to get the oz-in range with motors close to or below the 3.5 and 2.25 mH range. I came up with these motors:

Nema 17 62 oz-in. 2.8v. 1.7a. 2.5mH
Nema 23 177 oz-in 2.5v. 2.83a. 2.5mH
Nema 23 270 oz-in 3.2v. 2.8a. 3.6mH

These were as close to the oz-in that I thought I would need and the specs. I am trying to set up a Taig with a small trunnion table for 5 axis. A, X, and Y would have the 177 oz-in steppers, the Z would have the 270 oz-in stepper, and the B axis (3in rotary) would have the 62 oz-in stepper.

Do I need to worry about heat if I'm under their max voltage ratings? These are all above the 2.25mH number for a 48v power supply.