Aerotech PRO560SL, Hardware Manual, Page: 27 / 60

The approximate amount of torque required to turn the ball screw of PRO560SL/SLE series stages can
be found from
Figure 2-8 or the following equation:
Torque
REQ
=
(AxialLoad)
x
(LeadofScrew)
2
x
π
x
(Efficiency)
Figure 2-7: Load Torque Equation
For PRO560SL/SLE series stages, the ball screw efficiency is rated at 90% (0.90). Refer to Section 1.3. for
Load Capacity specifications.
Figure 2-8: Torque Required to Turn Ball Screw in Vertical Orientation
PRO560SL/SLE Hardware Manual 2.4. Attaching the Payload to the Stage
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