Aerotech MPS50SL, Hardware Manual

Page: 23 / 50

MPS50SL Hardware Manual Mechanical Specifications and Installation
Figure 2-8: Stage Orientations
The approximate amount of torque required to turn the drive screw of an MPS50SL series stage can be found
from
Figure 2-9 or the following equation:
Where:
Lead of Screw = see Table 1-3
Efficiency = .90 for ball screws, .50 for MPS50 lead screws
Reduction Ratio = 49/676 for MPS50SL-DC; 63/2704 for MPS50SL-SM
Moving Mass = 0.2 kg
Preload Torque = 5 Nmm for ball screws, 15 Nmm for lead screws
www.aerotech.com Chapter 2 23