Types

• Type R1: Right hand thread, single shaft end

• Type R2*: Right hand thread, two shaft ends

• Type L1*: Left hand thread, single shaft end

• Type L2*: Left hand thread, two shaft ends

Guide tube DIN 2391

Steel chrome-plated SCR

End pieces / Slider / Adapter plated

Aluminium

plastic coated

black, RAL 9005, textured finish

Fixing surface / mounting surface

machined, blank

• Steel, blank

• with ball-bearing

• Positioning accuracy ±0.2 mm/300 mm travel

Cylinder head screws DIN 912 /

Hexagon nuts DIN 985

Steel, zinc plated

In addition to the standard travel lengths specified in the above table for the double tube linear actuator GN 492 any length inside the maximum length is available.

In order to measure the movement and positioning of the sliders, digital position indicators can be added.

• Installation kits GN 491.1  for position indicators

• Mounting facilities of end pieces 

• Technical information / Load data of Double tube linear actuators 

Mounting facilities of the end pieces

 

Vertical

From outside, with screws for thread d₃

From inside, with screws for bore d₆

From inside, with screws for bore d₅ / d₇

 

Mounting facilities at the slider

 

Assembly of position indicator and handwheel

 

 

Description

The silder is moved cia a bearing-type trapezoidal thread spindle and a aguide nut. The slider is guided through two parallel chrome-plated tubes, resulting in a high load capacity and allowing high bending moments to be compensated by the linear actuator.

For type GN 492, a second slider and an adapter plate extend the options for applications.

These double tube linear actuators have been designed for manual operation (handwheel). With the appropriate lubrication, they can also absorb rotary spindle speed of as much as 250 rpm.

The positioning accuarcy is 0.2 mm / 300 mm travel, the maximum revers play is 0.1 mm.

To measure the adjustment or the positioning, digital position indicators DD52R / DD51 may be attached.