Figure 2-8: Load Torque Equation; Figure 2-9: Torque Required To Turn Ball Screw In Vertical Orientation - Aerotech PRO22SL Hardware Manual

2.4. Attaching the Payload to the Stage
The approximate amount of torque required to turn the ball screw of PRO225SL/SLE series stages can
be found from Figure 2-9
For PRO225SL/SLE series stages, the ball screw efficiency is rated at 90% (0.90). Refer to
Load Capacity specifications.
Figure 2-9:
28
or the following equation:
Torque =
REQ
Figure 2-8:
Torque Required to Turn Ball Screw in Vertical Orientation
PRO225SL/SLE Hardware Manual
(AxialLoad) (LeadofScrew)
x
2 π (Efficiency)
x x
Load Torque Equation
Section 1.3. for
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