GN 492

Double tube linear actuators

with right or left hand thread, double slider

GN 492

Double tube linear actuators
Double tube linear actuators

GN 492

Double tube linear actuators
Double tube linear actuators

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

* normally not available from stock

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

Spindle with trapezoidal thread

  • Steel, blank
  • with ball-bearing
  • Positioning accuracy ±0.2 mm/300 mm travel

Follower nut, gun metal

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 the end pieces

Horizontal with screws for thread d4 or bore d5

 

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

Mounting with screws for thread d4 or bore d5

 

Assembly of position indicator and handwheel

Useage of installation kit, position indicator and handwheel (see table).

 

 
dFx in NFy in N for length l =--Fz in N for length l =--MxMyMz
--5001000150050010001500in Nmin Nmin Nm
18425290180-140105-425075
3085015501300800700550250150150200
4011006400340019002400750230180210260
5019007500510027003400850340250350530
602700115009500820075003100610550650980

The specified forces Fy and Fz cause a flexure of the guide tube of approx. 0.5 mm.

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.

 

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