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Operation Technology
PowerGrip uses Parker Hannifin’s innovative,
sliding-spline operating technology to convert
linear piston motion into powerful shaft rotation.
Each actuator is composed of a housing and two
moving parts — the central shaft and piston.
Helical spline teeth on the shaft engage matching
teeth on the piston’s inside diameter. A second set
of splines on the piston’s outside diameter mesh
with the gear in the housing.
Starting position
The piston is completely bottomed out.
Bars indicate starting positions of piston
and shaft. Arrows indicate directions they
will rotate. The housing with integral ring
gear remains stationary.
Ending position
When hydraulic pressure is applied to the
piston, it moves axially, while the helical
gearing causes the piston and shaft to rotate
simultaneously. Applying pressure to the
opposite port will return the piston and shaft
to their original starting positions.
INTRODUCTION
