Specifications
Rotation Range... 360°
Resolution....... 0.9 arcmin
                  (0.015°)
Wobble........... 0.8 arcmin
Eccentricity..... 10 µm
Load capacity
  Horizontal..... 4 kg
  Radial......... 1.5 kg
  Torque......... 0.5 Nm
Motor cable...... integrated
  Length......... 2 meters
  (other lengths optional)
  Connector...... DB9 plug
  (9 pin Sub-D)
Weight........... 0.5 kg

The motor of 8MR174 protrudes from the bottom.
This base plate is needed to place the stage on a flat surface.