I looked at the link and what I saw was all the series 1 stuff.
Elrod makes the current Z axis conversion for the Bridgeport EZTRAKS.
Series 2 special was a replacement for the very expensive series 2. It allowed the same weight to be supported by the table but used the series 1 head, ram and turret.
Thus the motors and drives for the "series 2" EZTRAKS (R2E3, R2E4,etc) were speced to match the mass that would be expected to be accelerated and decelerated. I will try and find out some data on this the next time I will be in the office.
George W. |