LA Series Linear Actuator Manual
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2-4
Load direction
The load direction to the output rod should be one way of pushing direction. In order to move a parts toward
pulling direction, force of 1 kgf (9.8N) to 3 kgf (29N) by means of a spring or a pneumatic cylinder should be
applied to the rod end.
To get high positioning accuracy, pre-load of 1 kgf (9.8N) to 3 kgf (49N) should also be applied to the rod end,
because of no pre-load mechanism in the actuators.
A hemisphere shaped screw is attached on the rod end. Do not apply force from the direction other than
pushing one for keeping high mechanical characteristics such as positioning accuracy.
The hardness of the part to attach the actuator load should be H
RC
55
～
65.
2-5
Stroke limits
Do not move actuator rod exceeding the stroke limit shown below. Otherwise, performance of the actuator may
be worse, and life may be shorten. Three indication lines are marked on the rod side face.
■
LA-30B-10-F
■
LA-32-30-F
The linear actuators do not house a stroke-end limit switch or a sensor. If the rod moves beyond one of the end
limit lines, the overrunning motion may cause poor positioning accuracy, shorter life or mechanical damage.
Users should install stroke-end limit switches or sensors on the driven mechanism to stop motor rotation.
The figure below shows the motion limits without any margine.
■
LA-30B-10-F
Permitted range
