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